1 MHz to 2.7 GHz RF Gain Block Data Sheet AD8354 FEATURES FUNCTIONAL BLOCK DIAGRAM Fixed gain of 20 dB Operational frequency of 1 MHz to 2.7 GHz Linear output power up to 4 dBm BIAS AND VREF VPOS Input/output internally matched to 50 Ω Temperature and power supply stable INPT VOUT Noise figure: 4.2 dB Power supply: 3 V or 5 V APPLICATIONS COM1 AD8354 COM2 02722-001 Figure 1. VCO buffers General Tx/Rx amplification Power amplifier predrivers Low power antenna drivers GENERAL DESCRIPTION The AD8354 is a broadband, fixed-gain, linear amplifier that The noise figure is 4.2 dB at 900 MHz. The reverse isolation operates at frequencies from 1 MHz up to 2.7 GHz. It is (S ) is −33 dB at 900 MHz. 12 intended for use in a wide variety of wireless devices, including The AD8354 can also operate with a 5 V power supply; in cellular, broadband, CATV, and LMDS/MMDS applications. which case, no external inductor is required. Under these By taking advantage of ADI’s high performance, complementary Si conditions, the AD8354 delivers 4.88 dBm with 20 dB of gain bipolar process, these gain blocks provide excellent stability at 900 MHz. The dc supply current is 26 mA. At 900 MHz, the over process, temperature, and power supply. This amplifier is OIP3 is greater than 19 dBm; at 2.7 GHz, the OIP3 is 15 dBm. single-ended and internally matched to 50 Ω with a return loss The noise figure is 4.4 dB at 900 MHz. The reverse isolation of greater than 10 dB over the full operating frequency range. (S ) is −33 dB. 12 The AD8354 provides linear output power of nearly 4.3 dBm The AD8354 is fabricated on ADI’s proprietary, high performance, with 20 dB of gain at 900 MHz when biased at 3 V and an 25 GHz, Si complementary, bipolar IC process. The AD8354 is external RF choke is connected between the power supply and available in a chip scale package that uses an exposed paddle for the output pin. The dc supply current is 24 mA. At 900 MHz, excellent thermal impedance and low impedance electrical the output third-order intercept (OIP3) is greater than 18 dBm; connection to ground. It operates over a −40°C to +85°C at 2.7 GHz, the OIP3 is 14 dBm. temperature range, and an evaluation board is also available. Rev. E Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2002–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com

AD8354 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................7 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 13 Functional Block Diagram .............................................................. 1 Basic Connections ...................................................................... 13 General Description ......................................................................... 1 Applications Information .............................................................. 14 Revision History ............................................................................... 2 Low Frequency Applications Below 100 MHz ........................... 14 Specifications ..................................................................................... 3 Evaluation Board ............................................................................ 15 Absolute Maximum Ratings ............................................................ 5 Outline Dimensions ....................................................................... 16 ESD Caution .................................................................................. 5 Ordering Guide .......................................................................... 16 Pin Configuration and Function Descriptions ............................. 6 REVISION HISTORY 11/13—Rev. D to Rev. E 8/05—Rev. A to Rev. B Changes to Figure 2 .......................................................................... 6 Updated Format .................................................................. Universal Added Figure 35, Renumbered Sequentially .............................. 12 Changes to Product Title, Features, and General Description .... 1 Added Exposed Pad Notation to Outline Dimensions ............. 16 Changes to Basic Connections Section ....................................... 13 Changes to Ordering Guide .......................................................... 16 Added Low Frequency Applications Below 100 MHz Section 14 Changes to Ordering Guide .......................................................... 16 3/09—Rev. C to Rev. D Updated Outline Dimensions ....................................................... 16 Changes to Lead Temperature (Soldering, 60 sec) Parameter, Table 3 ................................................................................................ 5 Changes to Ordering Guide .......................................................... 16 6/02—Rev. 0 to Rev. A Changes to Ordering Guide ............................................................. 4 Replaced TPC 34 ............................................................................ 10 12/05—Rev. B to Rev. C Updated Outline Dimensions ....................................................... 13 Changes to Table 1 ............................................................................ 3 Changes to Table 2 ............................................................................ 4 Moved Figure 39 to Page 15; Renumbered Sequentially ........... 15 2/02—Revision 0: Initial Version Changes to Ordering Guide .......................................................... 16 Rev. E | Page 2 of 16

Data Sheet AD8354 SPECIFICATIONS V = 3 V, T = 25°C, 100 nH external inductor between VOUT and VPOS, Z = 50 Ω, unless otherwise noted. S A O Table 1. Parameter Conditions Min Typ Max Unit OVERALL FUNCTION Frequency Range 1 2700 MHz Gain f = 900 MHz 19.5 dB f = 1.9 GHz 18.6 dB f = 2.7 GHz 17.1 dB Delta Gain f = 900 MHz, −40°C ≤ T ≤ +85°C −0.97 dB A f = 1.9 GHz, −40°C ≤ T ≤ +85°C −1.05 dB A f = 2.7 GHz, −40°C ≤ T ≤ +85°C −1.33 dB A Gain Supply Sensitivity VPOS ± 10%, f = 900 MHz 0.54 dB/V f = 1.9 GHz 0.37 dB/V f = 2.7 GHz 0.2 dB/V Reverse Isolation (S ) f = 900 MHz −33.5 dB 12 f = 1.9 GHz −38 dB f = 2.7 GHz −32.9 dB RF INPUT INTERFACE Pin INPT Input Return Loss f = 900 MHz 24.4 dB f = 1.9 GHz 23 dB f = 2.7 GHz 12.7 dB RF OUTPUT INTERFACE Pin VOUT Output Compression Point f = 900 MHz, 1 dB compression 4.6 dBm f = 1.9 GHz 3.7 dBm f = 2.7 GHz 2.7 dBm Delta Compression Point f = 900 MHz, −40°C ≤ T ≤ +85°C 0.7 dB A f = 1.9 GHz, −40°C ≤ T ≤ +85°C 0.7 dB A f = 2.7 GHz, −40°C ≤ T ≤ +85°C 0.8 dB A Output Return Loss f = 900 MHz 23.6 dB f = 1.9 GHz 16.5 dB f = 2.7 GHz 14.6 dB DISTORTION/NOISE Output Third-Order Intercept f = 900 MHz, ∆f = 1 MHz, P = −28 dBm 19 dBm IN f = 1.9 GHz, ∆f = 1 MHz, P = −28 dBm 16 dBm IN f = 2.7 GHz, ∆f = 1 MHz, P = −28 dBm 14.2 dBm IN Output Second-Order Intercept f = 900 MHz, ∆f = 1 MHz, P = −28 dBm 29.7 dBm IN Noise Figure f = 900 MHz 4.2 dB f = 1.9 GHz 4.8 dB f = 2.7 GHz 5.4 dB POWER INTERFACE Pin VPOS Supply Voltage 2.7 3 3.3 V Total Supply Current 16 23 31 mA Supply Voltage Sensitivity 6.2 mA/V Temperature Sensitivity −40°C ≤ T ≤ +85°C 33 µA/°C A Rev. E | Page 3 of 16

AD8354 Data Sheet V = 5 V, T = 25°C, no external inductor between VOUT and VPOS, Z = 50 Ω, unless otherwise noted. S A O Table 2. Parameter Conditions Min Typ Max Unit OVERALL FUNCTION Frequency Range 1 2700 MHz Gain f = 900 MHz 19.5 dB f = 1.9 GHz 18.7 dB f = 2.7 GHz 17.3 dB Delta Gain f = 900 MHz, −40°C ≤ T ≤ +85°C −0.93 dB A f = 1.9 GHz, −40°C ≤ T ≤ +85°C −0.99 dB A f = 2.7 GHz, −40°C ≤ T ≤ +85°C −1.21 dB A Gain Supply Sensitivity VPOS ± 10%, f = 900 MHz 0.32 dB/V f = 1.9 GHz 0.21 dB/V f = 2.7 GHz 0.08 dB/V Reverse Isolation (S ) f = 900 MHz −33.5 dB 12 f = 1.9 GHz −37.6 dB f = 2.7 GHz −32.9 dB RF INPUT INTERFACE Pin INPT Input Return Loss f = 900 MHz 24.4 dB f = 1.9 GHz 23.9 dB f = 2.7 GHz 13.5 dB RF OUTPUT INTERFACE Pin VOUT Output Compression Point f = 900 MHz 4.8 dBm f = 1.9 GHz 4.6 dBm f = 2.7 GHz 3.6 dBm Delta Compression Point f = 900 MHz, −40°C ≤ T ≤ +85°C 0.37 dB A f = 1.9 GHz, −40°C ≤ T ≤ +85°C −0.14 dB A f = 2.7 GHz, −40°C ≤ T ≤ +85°C −0.05 dB A Output Return Loss f = 900 MHz 23.7 dB f = 1.9 GHz 22.5 dB f = 2.7 GHz 17.6 dB DISTORTION/NOISE Output Third-Order Intercept f = 900 MHz, ∆f = 50 MHz, P = −30 dBm 19.3 dBm IN f = 1.9 GHz, ∆f = 50 MHz, P = −30 dBm 17.3 dBm IN f = 2.7 GHz, ∆f = 50 MHz, P = −30 dBm 15.3 dBm IN Output Second-Order Intercept f = 900 MHz, ∆f = 1 MHz, P = −28 dBm 28.7 dBm IN Noise Figure f = 900 MHz 4.4 dB f = 1.9 GHz 5 dB f = 2.7 GHz 5.6 dB POWER INTERFACE Pin VPOS Supply Voltage 4.5 5 5.5 V Total Supply Current T = 27°C 17 25 34 mA A Supply Voltage Sensitivity 4 mA/V Temperature Sensitivity −40°C ≤ T ≤ +85°C 28 µA/°C A Rev. E | Page 4 of 16

Data Sheet AD8354 ABSOLUTE MAXIMUM RATINGS Table 3. Stresses above those listed under Absolute Maximum Ratings Parameter Rating may cause permanent damage to the device. This is a stress Supply Voltage, VPOS 5.5 V rating only; functional operation of the device at these or any Input Power (re: 50 Ω) 10 dBm other conditions above those indicated in the operational Equivalent Voltage 700 mV rms section of this specification is not implied. Exposure to absolute Internal Power Dissipation maximum rating conditions for extended periods may affect Paddle Not Soldered 325 mW device reliability. Paddle Soldered 812 mW θJA (Paddle Soldered) 80°C/W θJA (Paddle Not Soldered) 200°C/W ESD CAUTION Maximum Junction Temperature 150°C Operating Temperature Range −40°C to +85°C Storage Temperature Range −65°C to +150°C Lead Temperature (Soldering, 60 sec) AD8354ACP (Non-RoHS Compliant) 240°C AD8354ACPZ (RoHS Compliant) 260°C Rev. E | Page 5 of 16

AD8354 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS COM1 1 8 COM1 NC 2 7 VOUT AD8354 INPT 3 TOP VIEW 6 VPOS COM2 4 5 COM2 NOTES 12.. TNTOHCE A= ELNXOOPW OC OSIMENPDNEEPDCAADTN. MCUE SGTR BOEU CNODNPNAEDC.TED 02722-041 Figure 2. Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1, 8 COM1 Device Common. Connect to low impedance ground. 2 NC No Connection. 3 INPT RF Input Connection. Must be ac-coupled. 4, 5 COM2 Device Common. Connect to low impedance ground. 6 VPOS Positive Supply Voltage. 7 VOUT RF Output Connection. Must be ac-coupled. Rev. E | Page 6 of 16

Data Sheet AD8354 TYPICAL PERFORMANCE CHARACTERISTICS 90 90 120 60 120 60 150 30 150 30 180 0 180 0 210 330 210 330 240 270 300 02722-002 240 270 300 02722-005 Figure 3. S11 vs. Frequency, VS = 3 V, TA = 25°C, 100 MHz ≤ f ≤ 3 GHz Figure 6. S22 vs. Frequency, VS = 3 V, TA = 25°C, 100 MHz ≤ f ≤ 3 GHz 25 25 GAIN AT 3.3V 20 20 GAIN AT–40°C GAIN AT 2.7V B) 15 GAIN AT 3.0V B)15 N (d N (d GAIN AT +25°C AI AI GAIN AT +85°C G 10 G10 5 5 00 500 1000FREQU1E5N0C0Y (MH2z0)00 2500 3000 02722-003 00 500 100F0REQU1E5N0C0Y (MHz2)000 2500 3000 02722-006 Figure 4. Gain vs. Frequency, VS = 2.7 V, 3 V, and 3.3 V, TA = 25°C Figure 7. Gain vs. Frequency, VS = 3 V, TA = −40°C, +25°C, and +85°C 0 0 –5 –5 B)–10 B)–10 N (d N (d ATIO–15 ATIO–15 SOL–20 SOL–20 E I E I RS–25 RS–25 E E EV EV S12 AT–40°C R–30 S12 AT 3.3V R–30 S12 AT +25°C –35 –35 –400 S1520 A0T 2.7V100F0REQU1E5N0C0Y (MHz2)000 2S51020 AT 3.0V3000 02722-004 –400 5S0102 AT +8150°0CF0REQUE15N0C0Y (MHz2)000 2500 3000 02722-007 Figure 5. Reverse Isolation vs. Frequency, VS = 2.7 V, 3 V, and 3.3 V, TA = 25°C Figure 8. Reverse Isolation vs. Frequency, VS = 3 V, TA = −40°C, +25°C, and +85°C Rev. E | Page 7 of 16

AD8354 Data Sheet 7 6 P1dB AT +85°C 6 P1dB AT 3.3V 5 5 4 Bm) 4 Bm) P1dB AT +25°C d d P (1dB 3 PP11ddBB A(dTB 3m.0)V P (1dB 3 2 P1dB AT–40°C 2 P1dB AT 2.7V 1 1 0 –10 500 1000 1500 2000 2500 3000 02722-008 00 500 1000 1500 2000 2500 3000 02722-011 FREQUENCY (MHz) FREQUENCY (MHz) Figure 9. P1dB vs. Frequency, VS = 2.7 V, 3 V, and 3.3 V, TA = 25°C Figure 12. P1dB vs. Frequency, VS = 3 V, TA = −40°C, +25°C, and +85°C 50 50 45 45 40 40 35 35 E G 30 30 CENTA 25 RCENT 25 ER 20 PE 20 P 15 15 10 10 5 502.5 2.6 2.O7U2T.P8UT2 .19dB3 C.0OM3P.1RE3S.2SIO3N.3 PO3I.N4T (3d.5Bm3).6 3.7 3.8 02722-009 014.4 14.6 14.8 15.0OIP31 5(.d2Bm)15.4 15.6 15.8 16.0 02722-012 Figure 10. Distribution of P1dB, VS = 3 V, TA = 25°C, f = 2.2 GHz Figure 13. Distribution of OIP3, VS = 3 V, TA = 25°C, f = 2.2 GHz 22 22 OIP3 AT 3.3V 20 20 18 18 Bm) Bm) OIP3 AT +25°C P3 (d 16 P3 (d 16 OI OI OIP3 AT +85°C OIP3 AT 3.0V 14 14 OIP3 AT 2.7V 12 12 OIP3 AT–40°C 100 500 1000 1500 2000 2500 3000 02722-010 100 500 1000 1500 2000 2500 3000 02722-013 FREQUENCY (MHz) FREQUENCY (MHz) Figure 11. OIP3 vs. Frequency, VS = 2.7 V, 3 V, and 3.3 V, TA = 25°C Figure 14. OIP3 vs. Frequency, VS = 3 V, TA = −40°C, +25°C, and +85°C Rev. E | Page 8 of 16

Data Sheet AD8354 6.0 6.5 5.8 6.0 5.6 B)5.4 B)5.5 RE (d5.2 RE (d5.0 U U G5.0 G E FI NF AT 3.0V E FI4.5 NF AT +85°C S4.8 S NOI NF AT 3.3V NOI NF AT +25°C 4.6 4.0 NF AT–40°C 4.4 3.5 44..200 NF AT5 20.07V 1000FREQU1E5N0C0Y (MHz2)000 2500 3000 02722-014 3.00 500 100F0REQU1E5N0C0Y (MH2z)000 2500 300002722-017 Figure 15. Noise Figure vs. Frequency, VS = 2.7 V, 3 V, and 3.3 V, TA = 25°C Figure 18. Noise Figure vs. Frequency, VS = 3 V, TA = −40°C, +25°C, and +85°C 40 30 35 IS AT 3.3V 25 30 A) m E 25 T ( 20 IS AT 2.7V G N ENTA 20 URRE 15 IS AT 3.0V C C PER 15 PLY P 10 U S 10 5 504.70 4.75 4.80 4.85 4N.9O0IS4E. 9F5IGU5.R00E (d5B.0)5 5.10 5.15 5.20 5.25 02722-015 0–60 –40 –20 TE0MPER2A0TURE (4°0C) 60 80 10002722-018 Figure 16. Distribution of Noise Figure, VS = 3 V, TA = 25°C, f = 2.2 GHz Figure 19. Supply Current vs. Temperature, VS = 2.7 V, 3 V, and 3.3 V 90 90 120 60 120 60 150 30 150 30 180 0 180 0 210 330 210 330 240 270 300 02722-016 240 270 300 02722-019 Figure 17. S11 vs. Frequency, VS = 5 V, TA = 25°C, 100 MHz ≤ f ≤ 3 GHz Figure 20. S22 vs. Frequency, VS = 5 V, TA = 25°C, 100 MHz ≤ f ≤ 3 GHz Rev. E | Page 9 of 16

AD8354 Data Sheet 25 25 GAIN AT 5.5V GAIN AT–�40°C 20 20 GAIN AT 5.0V B) 15 GAIN AT 4.5V B) 15 d d N ( N ( GAIN AT +�25°C AI AI G 10 G 10 GAIN AT +85°C 5 5 0 02722-020 0 02722-023 0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000 FREQUENCY (MHz) FREQUENCY (MHz) Figure 21. Gain vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C Figure 24. Gain vs. Frequency, VS = 5 V, TA = −40°C, +25°C, and +85°C 0 0 –5 –5 ATION (dB)––1150 TION (dB)––1105 L A SO–20 OL–20 SE I E IS ER–25 S12 AT 4.5V RS–25 S12 AT–40°C REV–30 S12 AT 5.0V S12 AT 5.5V EVE S12 AT +85°C S12 AT +25°C R–30 –35 –400 500 1000 1500 2000 2500 3000 02722-021 ––43050 500 1000 1500 2000 2500 300002722-024 FREQUENCY (MHz) FREQUENCY (MHz) Figure 22. Reverse Isolation vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C Figure 25. Reverse Isolation vs. Frequency, VS = 5 V, TA = −40°C, +25°C, and +85°C 7 6 P1dB AT +85°C 6 P1dB AT 5.5V 5 5 P1dB AT–40°C 4 Bm) 4 Bm) P1dB AT +25°C d d (B (B3 P1d 3 P1dB AT 5.0V P1d P1dB AT 4.5V 2 2 1 1 0 02722-022 0 02722-025 0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000 FREQUENCY (MHz) FREQUENCY (MHz) Figure 23. P1dB vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C Figure 26. P1dB vs. Frequency, VS = 5 V, TA = –40°C, +25°C, and +85°C Rev. E | Page 10 of 16

Data Sheet AD8354 50 35 45 30 40 35 25 E E G 30 G A A 20 T T N N E 25 E C C R R 15 E 20 E P P 15 10 10 50 02722-026 50 02722-029 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 16.0 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 17.0 17.1 17.2 OUTPUT 1dB COMPRESSION POINT (dBm) OIP3 (dBm) Figure 27. Distribution of P1dB, VS = 5 V, TA = 25°C, f = 2.2 GHz Figure 30. Distribution of OIP3, VS = 5 V, TA = 25°C, f = 2.2 GHz 22 22 OIP3 AT 5.5V OIP3 AT–40°C 20 20 18 18 OIP3 AT +85°C m) m) B B OIP3 AT +25°C OIP3 (d 16 OIP3 AT 5.0V OIP3 AT 4.5V OIP3 (d 16 14 14 12 12 10 02722-027 10 02722-030 0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000 FREQUENCY (MHz) FREQUENCY (MHz) Figure 28. OIP3 vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C Figure 31. OIP3 vs. Frequency, VS = 5 V, TA = –40°C, +25°C, and +85°C 7.0 7.5 7.0 6.5 6.5 B)6.0 B)6.0 d d E ( E ( R R5.5 U U G5.5 G SE FI NF AT 5.5V SE FI5.0 NF AT +85°C NOI5.0 NOI4.5 NF AT +25°C 4.0 4.5 4.0 NF AT 5.0V NF AT 4.5V 02722-028 33..50 NF AT–40°C 02722-031 0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000 FREQUENCY (MHz) FREQUENCY (MHz) Figure 29. Noise Figure vs. Frequency, VS = 4.5 V, 5 V, and 5.5 V, TA = 25°C Figure 32. Noise Figure vs. Frequency, VS = 5 V, TA = –40°C, +25°C, and +85°C Rev. E | Page 11 of 16

AD8354 Data Sheet 40 15 20 35 10 19 30 5 18 GE 25 m) B) A B d CENT 20 (dOUT0 17 GAIN ( R P E P 15 –5 16 10 –10 15 50 02722-032 –15–30 –25 –20 –15 –10 –5 014 02722-034 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 PIN(dBm) NOISE FIGURE (dB) Figure 33. Distribution of Noise Figure, VS = 5 V, TA = 25°C, f = 2.2 GHz Figure 36. Output Power and Gain vs. Input Power, VS = 3 V, TA = 25°C, f = 900 MHz 35 15 20 30 IS AT 5.5V 10 19 A) 25 m 5 18 Y CURRENT ( 1250 IS AT 5.0V IS AT 4.5V P (dBm)OUT0 17 GAIN (dB) L P –5 16 P U S 10 –10 15 50 02722-033 –15–30 –25 –20 –15 –10 –5 01402722-035 –60 –40 –20 0 20 40 60 80 100 PIN (dBm) TEMPERATURE (°C) Figure 34. Supply Current vs. Temperature, VS = 4.5 V, 5 V, and 5.5 V Figure 37. Output Power and Gain vs. Input Power, VS = 5 V, TA = 25°C, f = 900 MHz 32 30 ISAT 5V, +85°C ISAT 3V, +85°C 28 mA) ISAT 5V, +25°C T ( 26 EN ISAT 3V, +25°C R CUR 24 ISAT 5V, –40°C Y PPL 22 ISAT 3V, –40°C U S 20 18 16 –10 –8 –6 –4 POUT– 2(dBm) 0 2 4 6 02722-135 Figure 35. Supply Current vs. POUT and Temperature, VS = 5 V Rev. E | Page 12 of 17

Data Sheet AD8354 THEORY OF OPERATION The AD8354 is a 2-stage, feedback amplifier employing both It is critical to supply very low inductance ground connections shunt-series and shunt-shunt feedback. The first stage is to the ground pins (Pin 1, Pin 4, Pin 5, and Pin 8) as well as to degenerated and resistively loaded and provides approximately the backside exposed paddle. This ensures stable operation. 10 dB of gain. The second stage is a PNP-NPN Darlington The AD8354 is designed to operate over a wide supply voltage output stage, which provides another 10 dB of gain. Series- range, from 2.7 V to 5.5 V. The output of the part, VOUT, is shunt feedback from the emitter of the output transistor sets the taken directly from the collector of the output amplifier stage. input impedance to 50 Ω over a broad frequency range. Shunt- This node is internally biased to approximately 3.2 V when the shunt feedback from the amplifier output to the input of the supply voltage is 5 V. Consequently, a dc blocking capacitor Darlington stage helps to set the output impedance to 50 Ω. The should be connected between the output pin, VOUT, and the amplifier can be operated from a 3 V supply by adding a choke load that it drives. The value of this capacitor is not critical, but inductor from the amplifier output to VPOS. Without this it should be 100 pF or larger. choke inductor, operation from a 5 V supply is also possible. BASIC CONNECTIONS When the supply voltage is 3 V, it is recommended that an external RF choke be connected between the supply voltage The AD8354 RF gain block is a fixed gain amplifier with single- and the output pin, VOUT. This increases the dc voltage applied ended input and output ports whose impedances are nominally to the collector of the output amplifier stage, which improves equal to 50 Ω over the frequency range 1 MHz to 2.7 GHz. performance of the AD8354 to be very similar to the performance Consequently, it can be directly inserted into a 50 Ω system produced when 5 V is used for the supply voltage. The inductance with no impedance matching circuitry required. The input and of the RF choke should be approximately 100 nH, and care output impedances are sufficiently stable vs. variations in should be taken to ensure that the lowest series self-resonant temperature and supply voltage that no impedance matching frequency of this choke is well above the maximum frequency compensation is required. A complete set of scattering of operation for the AD8354. parameters is available at www.analog.com. Bypass the supply voltage input, VPOS, using a large value The input pin (INPT) is connected directly to the base of the capacitance (approximately 0.47 µF or larger) and a smaller, first amplifier stage, which is internally biased to approximately 1 V; high frequency bypass capacitor (approximately 100 pF) therefore, a dc blocking capacitor should be connected between the physically located close to the VPOS pin. source that drives the AD8354 and the input pin, INPT. The recommended connections and components are shown in Figure 41. Rev. E | Page 13 of 16

AD8354 Data Sheet APPLICATIONS INFORMATION The AD8354 RF gain block can be used as a general-purpose, LOW FREQUENCY APPLICATIONS BELOW 100 MHz fixed gain amplifier in a wide variety of applications, such as a The AD8354 RF gain block can be used below 100 MHz. To driver for a transmitter power amplifier (see Figure 38). Its accomplish this, the series dc blocking capacitors, C1 and C2, excellent reverse isolation also makes this amplifier suitable for need to be changed to a higher value that is appropriate for the use as a local oscillator buffer amplifier that would drive the desired frequency. C1 and C2 were changed to 0.1 µF to accomplish local oscillator port of an upconverter or downconverter mixer the sweeps in Figure 40. (see Figure 39). 21.5 dB-S21 Mkr 1: 97.638034MHz 19.40dB 21.0 20.5 AD8354 HAIMGPHL PIFOIEWRER 02722-036 20.0 1 Figure 38. AD8354 as a Driver Amplifier 19.5 19.0 MIXER 18.5 18.0 AD8354 17.5 LOCAL OSCILLATOR 02722-037 1176..05CH 1: START 300.000kHz STOP 100.000MHz02722-042 Figure 39. AD8354 as a LO Driver Amplifier Figure 40. Low Frequency Application from 300 kHz to 100 MHz at 5 V VPOS, −12 dBm Input Power Rev. E | Page 14 of 16

Data Sheet AD8354 EVALUATION BOARD Figure 41 shows the schematic of the AD8354 evaluation board. Note that L1 is shown as an optional component that is used to obtain maximum gain only when V = 3 V. The board is powered P by a single supply in the 2.7 V to 5.5 V range. The power supply is decoupled by a 0.47 µF and a 100 pF capacitor. AD8354 1 COM1 COM1 8 C2 1000pF OUTPUT 2 NC VOUT 7 C1 L1 INPUT 1000pF 3 INPT VPOS 6 4 COM2 COM2 5 C1030pF C0.447µF 02722-039 NC = NO CONNECT 02722-038 Figure 42. Silkscreen Top Figure 41. Evaluation Board Schematic Table 5. Evaluation Board Configuration Options Default Component Function Value C1, C2 AC coupling capacitors. 1000 pF, 0603 C3 High frequency bypass capacitor. 100 pF, 0603 C4 Low frequency bypass capacitor. 0.47 µF, 0603 L1 Optional RF choke, used to increase 100 nH, current through output stage when 0603 V = 3 V. Not recommended for use P when VP = 5 V. 02722-040 Figure 43. Component Side Rev. E | Page 15 of 16

AD8354 Data Sheet OUTLINE DIMENSIONS 3.25 1.89 3.00 0.55 1.74 0.25 2.75 0.40 1.59 0.20 0.30 0.15 1.95 2.25 5 8 1.75 2.00 EXPOSEDPAD 1.55 1.75 0.60 0.15 0.45 4 1 0.10 0.30 0.05 PIN 1 TOP VIEW BOTTOM VIEW INDICATOR 2.95 0.50 BSC 2.75 2.55 FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND 1.00 12° MAX 0.80 MAX FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. 0.85 0.65 TYP 0.80 0.05 MAX 0.02 NOM SEPALTAINNGE 000...321038 0.20 REF 03-11-2013-B Figure 44. 8-Lead Lead Frame Chip Scale Package [LFCSP_VD] 2 mm × 3 mm Body, Very Thin, Dual Lead CP-8-1 Dimensions shown in millimeters ORDERING GUIDE Model1 Temperature Range Package Description Package Option Branding AD8354ACPZ-REEL7 −40°C to +85°C 8-Lead LFCSP_VD, 7" Tape and Reel CP-8-1 0G AD8354-EVALZ Evaluation Board 1 Z = RoHS Compliant Part. ©2002–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02722-0-11/13(E) Rev. E | Page 16 of 16

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: A nalog Devices Inc.: AD8354ACPZ-REEL7 AD8354-EVALZ