ADVANCED LINEAR DEVICES, INC. ALD2302A/ALD2302 DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER GENERAL DESCRIPTION FEATURES The ALD2302A/ALD2302 are monolithic precision high performance • Guaranteed to drive 200Ω loads dual voltage comparators built with advanced silicon gate CMOS • Fanout of 30LS TTL loads technology. The primary features are: very high typical input impedance • Low supply current of 175(cid:181)A each of 1012Ω; low input bias current of 10pA; fast response time of 180ns; comparator very low power dissipation of 175(cid:181)A per comparator; and single (+5V) • Pinout of LM193 type industry standard or dual (–5V) power supply operation. comparators • Extremely low input bias currents The input voltage range includes ground, which makes these compara- -- typically 10pA tors ideal for single supply low level signal detection with high source • Virtually eliminates source impedance effects impedance. The outputs can source and sink current allowing for • Low operating supply voltage of 4V to 10V application flexibility. They can be used in either wired-OR connection • Single (+5V) and dual supply (–5V) operation without pull-up resistor or push-pull configuration. The ALD2302A/ • High speed for both large and small signals ALD2302 can also be used in wired-OR connection with other open -- 180ns for TTL inputs and 400ns for 20mV drain circuits such as the ALD2301/ALD2303 voltage comparators. overdrive • CMOS, NMOS and TTL compatible The ALD2302A/ALD2302 voltage comparators are ideal for a great • Push-pull outputs-current sourcing/ sinking variety of applications, especially in low level signal detection circuits • High output sinking current -- typically 60mA which require low standby power and high output current. For quad • Low supply current spikes packages, use the ALD4302A/ALD4302 quad voltage comparator. • High gain -- 100V/mV APPLICATIONS PIN CONFIGURATION • PCMCIA instruments • MOSFET driver • High source impedance voltage comparison circuits • Multiple limit window comparator OUT 1 1 8 V+ • Power supply voltage monitor • Photodetector sensor circuit • High speed LED driver -IN 1 2 7 OUT 2 • Oscillators • Battery operated instruments +IN 1 3 6 -IN 2 • Remote signal detection • Multiple relay drivers GND 4 5 +IN 2 BENEFITS SAL, PAL, DA PACKAGES • On-chip input and output buffers • Precision voltage comparison capability • Eliminate need for second power supply BLOCK DIAGRAM • Eliminate pull-up resistor ORDERING INFORMATION (“L” suffix for lead free version) (8) V+ INVERTING INPUT Operating Temperature Range * -IN 1 (2) 0(cid:176)C to +70(cid:176)C 0(cid:176)C to +70(cid:176)C -55(cid:176)C to +125(cid:176)C NONINVERTING INPUT (1) OUT 1 +IN 1 (3) 8-Pin 8-Pin 8-Pin V+ Small Outline Plastic Dip CERDIP INVERTING INPUT -IN 2 (6) Package (SOIC) Package Package (7) OUT 2 NONINVERTING INPUT +IN 2 (5) ALD2302ASAL ALD2302APAL ALD2302ADA (4) GND ALD2302SAL ALD2302PAL ALD2302DA * Contact factory for leaded (non-RoHS) or high temperature versions. Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286 www.aldinc.com

ABSOLUTE MAXIMUM RATINGS Supply voltage, V+ 10.6V Differential input voltage range -0.3V to V++0.3V Power dissipation 600 mW Operating temperature range SAL, PAL packages 0(cid:176)C to +70(cid:176)C DA package -55(cid:176)C to +125(cid:176)C Storage temperature range -65(cid:176)C to +150(cid:176)C Lead temperature, 10 seconds +260(cid:176)C OPERATING ELECTRICAL CHARACTERISTICS TA = 25(cid:176)C V+ = +5V unless otherwise specified 2302A 2302 Test Parameter Symbol Min Typ Max Min Typ Max Unit Conditions Supply VS –2 –5 –2 –5 V Dual Supply Voltage V+ 4 10 4 10 V Single Supply Supply IS 350 500 350 500 (cid:181)A RLOAD = ∞ Current Voltage AVD 10 100 10 100 V/mV RLOAD ≥15KΩ Gain Input Offset VOS 0.5 1.0 1.5 4.0 mV RLOAD =1.5KΩ Voltage 2.0 5.0 0(cid:176)C ≤ TA ≤ 70(cid:176)C Input Offset IOS 10 200 10 200 pA Current 1 800 800 Input Bias IB 10 200 10 200 pA 0(cid:176)C ≤ TA ≤ 70(cid:176)C Current 1 1000 1000 Common Mode Input VICR -0.3 V+ -1.5 -0.3 V+ -1.5 V 0(cid:176)C ≤ TA ≤ 70(cid:176)C Voltage Range 2 Low Level ISINK =12mA Output VOL 0.18 0.4 0.18 0.4 V VINPUT =1V Voltage Differential Low Level Output IOL 24 60 24 60 mA VOL =1.0V Current High Level Output VOH 3.5 4.5 3.5 4.5 V IOH = -2mA Voltage Response CL =15pF Time 2 tRP 400 400 ns 100mV Input Step/20mV Overdrive CL = 15pF 180 180 ns TTL- Level Input Step Notes: 1 Consists of junction leakage currents 2 Sample tested parameters ALD2302/ALD2302A Advanced Linear Devices 2 of 9

TYPICAL PERFORMANCE CHARACTERISTICS SATURATION VOLTAGE TRANSFER FUNCTION vs. TEMPERATURE 1.4 +6.0 )V( EG 11..20 IV SSI N=K – =2 .550VmA E (V) TVAS == 2–65V(cid:176)C A G T A LO 0.8 LT V O 0.0 NO 0.6 T V ITARUT 0.4 OUTPU A 0.2 S -6.0 0 -55 -25 0 25 50 75 100 125 -2.5 0.0 +2.5 TEMPERATURE ((cid:176)C) DIFFERENTIAL INPUT VOLTAGE (mV) COMMON - MODE VOLTAGE REFERRED RESPONSE TIME FOR VARIOUS TO SUPPLY VOLTAGE INPUT OVERDRIVES V) TS ( 0.5 V) 0 TAGE LIMI -0V.+5 VS = – 2.5 V INPUT LTAGE (m 100 VIN +- V+ VOUT VTAS == 2–52(cid:176).5CV VOL -1.0 VO ≈ 0V V- ≈ MON - MODE 0V.5- ≈ ≈ OUTPUTLTAGE (V) +02..05 5T0TmLV 201m0VmV M O O -0.5 V -2.5 C -55 -25 0 25 50 75 100 125 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 TEMPERATURE ((cid:176)C) TIME ((cid:181)s) SATURATION VOLTAGE vs. RESPONSE TIME FOR VARIOUS SINK CURRENT INPUT OVERDRIVES V) ON 1.5 V S = –2.5V PUTGE (m 100 TVAS == 2–25.(cid:176)5CV URATIE (V) 1.2 INVOLTA 0 VIN + V+ VOUT PUT SATVOLTAG 00..96 12855(cid:176)(cid:176)CC V) +2.5 ≈ 0TVTL- V- 10mV ≈ UT 25(cid:176)C UTE ( 20mV O 0.3 -25(cid:176)C TPAG 0.0 50mV -55(cid:176)C UT OL 0.0 VO -2.5 0 15 30 45 60 75 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 OUTPUT SINK CURRENT (mA) TIME ((cid:181)s) ALD2302/ALD2302A Advanced Linear Devices 3 of 9

TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) TOTAL SUPPLY CURRENT vs. SUPPLY CURRENT vs. TEMPERATURE TOTAL SUPPLY VOLTAGE 550 V+ T (A)(cid:181) 540000 +- TRAL == 2∞5(cid:176)C T (A)(cid:181) 540500 NAVSoll =cLo o–ma2d.p5aVrators N N RE RE 400 R 300 R CU CU 350 Y Y PL 200 PL 300 P P U U S 100 S 250 200 2.0 4.0 6.0 8.0 10.0 12.0 -55 -25 0 25 50 75 100 125 SUPPLY VOLTAGE (V) TEMPERATURE ((cid:176)C) INPUT OFFSET VOLTAGE vs. SUPPLY NORMALIZED INPUT OFFSET VOLTAGE VOLTAGE REPRESENTATIVE SAMPLES vs. TEMPERATURE +3 6 FFSET +2 VVCS M= =– 20.V5V GE (mV) 4 TA = 25(cid:176)C MALIZED INPUT O VOLTAGE (mV) +-011 T OFFSET VOLTA -202 OR -2 PU -4 N N I -3 -6 -55 -25 0 25 50 75 100 125 2 4 6 8 10 12 SUPPLY VOLTAGE (V) TEMPERATURE ((cid:176)C) OUTPUT HIGH VOLTAGE OUTPUT LOW VOLTAGE vs. SUPPLY VOLTAGE vs. SUPPLY VOLTAGE V+ -0.6 0.6 )V +( V M V+ -0.5 TIOAH = = 2 -52(cid:176)mCA GE (V) 0.5 TIOAL == 2152(cid:176)mCA(cid:31) O A R V+ -0.4 T 0.4 F L E O GA V+ -0.3 W V 0.3 TLOV V+ -0.2 T LO 0.2 H PU G T IH V+ -0.1 U 0.1 T O U P V+ 0.0 T U 2 4 6 8 10 12 2 4 6 8 10 12 O SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) ALD2302/ALD2302A Advanced Linear Devices 4 of 9

TYPICAL APPLICATIONS ZERO CROSSING DETECTOR DOUBLE DUAL LIMIT WINDOW COMPARATOR +3V ALD2302 +12V 50K +12V +12V VOUT VIN + VH 2 50K + -5V 1/2 ALD2302 VH1 + MULTIPLE RELAY DRIVE +12V +5V VIN +5V 47K +12V VREF + VL1 VIN + 1/2 ALD2302(cid:31) + VL2 50K VOLTAGE LEVEL TRANSLATOR ALD2302(cid:31) VL1 and VH1 first limit window send warning. VL2 and VH2 second limit window execute V+ = +10V system cutoff. VREF VOUT VIN + 1/2 ALD2302 V = 1.4V for TTL input REF V = V+ for CMOS input REF 2 Output V swings from rail-to-rail OUT ALD2302/ALD2302A Advanced Linear Devices 5 of 9

TYPICAL APPLICATIONS (cont'd) PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER +12V +12V P- Channel VP 02 +12V Power MOSFET 10K V1 + 2A Source VIN 2A Sink 40K +12V V2 + N - Channel VN 01 Power MOSFET This circuit eliminates crossover current in the 10K complementary power transistors. The outputs can be used to source and sink different loads or tied ALD2302 together to provide push-pull drive of the same load. TIME DELAY GENERATOR V+ RF1 1/2 ALD 2302 1/2 ALD 2302 V+ + V1 VREF RT RF2 1/2 ALD 2302 VIN + V2 + CT RF3 1/2 ALD 2302 V3 + RF4 Design & Operating Notes: 1.As each output sources up to 10mA in the output high state, the output stage of a wired - OR low output circuit must be able to sink this current and still provide desired output voltage levels. For TTL output levels, this consideration limits the number to a maximum of three ALD2302 outputs wired-OR together. 2. In order to minimize stray oscillation, all unused inputs must be tied to ground. 3.The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room temperature. The currents are a function of ambient temperature, and would have to be considered in applications where very high source impedance or high accuracy are involved. 4.The high output sinking current of 60mA for each output offers flexibility in many applications, as a separate buffer or driver would not be necessary to drive the intended load. However, as the circuit normally operates close to ambient temperature due to its very low power consumption, thermal effects caused by large output current transients must be considered in certain applications. ALD2302/ALD2302A Advanced Linear Devices 6 of 9

SOIC-8 PACKAGE DRAWING 8 Pin Plastic SOIC Package E Millimeters Inches Dim Min Max Min Max A 1.35 1.75 0.053 0.069 S (45(cid:176)) A1 0.10 0.25 0.004 0.010 b 0.35 0.45 0.014 0.018 C 0.18 0.25 0.007 0.010 D-8 4.69 5.00 0.185 0.196 D E 3.50 4.05 0.140 0.160 e 1.27 BSC 0.050 BSC H 5.70 6.30 0.224 0.248 A L 0.60 0.937 0.024 0.037 ø 0(cid:176) 8(cid:176) 0(cid:176) 8(cid:176) e A1 S 0.25 0.50 0.010 0.020 b (cid:31) S (45(cid:176)) H C L ø ALD2302/ALD2302A Advanced Linear Devices 7 of 9

PDIP-8 PACKAGE DRAWING 8 Pin Plastic DIP Package Millimeters Inches Dim Min Max Min Max E E1 A 3.81 5.08 0.105 0.200 A1 0.38 1.27 0.015 0.050 A2 1.27 2.03 0.050 0.080 b 0.89 1.65 0.035 0.065 b1 0.38 0.51 0.015 0.020 c 0.20 0.30 0.008 0.012 D-8 9.40 11.68 0.370 0.460 D S E 5.59 7.11 0.220 0.280 E1 7.62 8.26 0.300 0.325 A2 A e 2.29 2.79 0.090 0.110 A1 L e1 7.37 7.87 0.290 0.310 b e L 2.79 3.81 0.110 0.150 S-8 1.02 2.03 0.040 0.080 ø b1 0(cid:176) 15(cid:176) 0(cid:176) 15(cid:176) c e1 ø ALD2302/ALD2302A Advanced Linear Devices 8 of 9

CERDIP-8 PACKAGE DRAWING 8 Pin CERDIP Package E E1 Millimeters Inches Dim Min Max Min Max A 3.55 5.08 0.140 0.200 D A1 1.27 2.16 0.050 0.085 b 0.97 1.65 0.038 0.065 b1 0.36 0.58 0.014 0.023 s A1 C 0.20 0.38 0.008 0.015 D-8 -- 10.29 -- 0.405 A E 5.59 7.87 0.220 0.310 E1 7.73 8.26 0.290 0.325 L L2 L1 e (cid:31) 2.54 BSC 0.100 BSC b e1 (cid:31) 7.62 BSC 0.300 BSC b1 L 3.81 5.08 0.150 0.200 L1 3.18 -- 0.125 -- e L2 0.38 1.78 0.015 0.070 S -- 2.49 -- 0.098 Ø 0(cid:176) 15(cid:176) 0(cid:176) 15(cid:176) C ø e1 ALD2302/ALD2302A Advanced Linear Devices 9 of 9