ALD4303ASBL

ADVANCED LINEAR DEVICES, INC. ALD4303A/ALD4303 QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER GENERAL DESCRIPTION APPLICATIONS The ALD4303A/ALD4303 is a precision monolithic high performance quad voltage comparator with open drain output built with advanced silicon gate CMOS technology. It features very high typical input impedance of 1012Ω; low input bias current of 10pA; very low power dissipation of 7.5µA per comparator; micropower operation; high output drive and single (+5V) or dual (±5V) power supply operation. • • • • The input voltage range includes ground, making this comparator ideal for single supply low level signal detection with high source impedance. The ALD4303A/ALD4303 can be used in connection with other voltage comparator circuits such as the ALD2301, ALD2302, and ALD4302 voltage comparators. The outputs can be connected to a higher external voltage than V+ and used in a wired-OR connection with other open drain circuits such as the ALD2301 and ALD2303. They can also be used with push-pull output types such as the ALD2302 and ALD4302 voltage comparators simultaneously with open drain comparators using a common V+. The ALD4303A/ALD4303 is ideal for a great variety of voltage comparator applications, especially micropower detection circuits requiring very low input currents, high output currents and low standby power. • • • • • • • • Sensor detection circuits PCMCIA instruments MOSFET driver High source impedance voltage comparison circuits Multiple limit window comparator Power supply voltage monitor Photodetector sensor circuit High speed LED driver Oscillators Battery operated instruments Remote signal detection Multiple relay drivers PIN CONFIGURATION 02 1 14 03 01 2 13 04 V+ 3 12 GND -IN 1 4 11 +IN 4 +IN 1 5 10 -IN 4 -IN 2 6 9 +IN 3 +IN 2 7 8 -IN 3 FEATURES • • • • • • • • • • • • • • 3V, 5V and 10V supply Guaranteed to drive 200Ω loads Fanout of 30LS TTL loads Guaranteed maximum supply current of 22µA per comparator Industry standard pinout of LM393 type Extremely low input bias currents -- typically 10pA Virtually eliminates source impedance effects Single (+5V) and dual supply (±5V) operation CMOS, NMOS and TTL compatible Open drain wired-OR outputs Compatible with push-pull outputs High output sinking current -- typically 60mA Low supply current spikes High gain -- 100V/mV ORDERING INFORMATION (“L” suffix for lead free version) Operating Temperature Range * 0°C to +70°C 0°C to +70°C -55°C to +125°C 14-Pin Small Outline Package (SOIC) 14-Pin Plastic Dip Package 14-Pin CERDIP Package ALD4303ASBL ALD4303SBL ALD4303APBL ALD4303PBL ALD4303ADB ALD4303DB * Contact factory for leaded (non-RoHS) or high temperature versions. SBL, PBL, DB PACKAGES BLOCK DIAGRAM V+ INVERTING INPUT - IN 1 (4) - NONINVERTING INPUT + IN 1 (5) + INVERTING INPUT - IN 2 (6) - NONINVERTING INPUT + IN 2 (7) + INVERTING INPUT - IN 3 (8) - NONINVERTING INPUT + IN 3 (9) + INVERTING INPUT - IN 4 (10) - NONINVERTING INPUT + IN 4 (11) + (3) (2) OUT 1 (1) OUT 2 (14) OUT 3 (13) OUT 4 (12) 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+ Differential input voltage range Power dissipation Operating temperature range SBL, PBL packages DB package Storage temperature range Lead temperature, 10 seconds 10.6V -0.3V to V+ +0.3V 600 mW 0°C to +70°C -55°C to +125°C -65°C to +150°C +260°C OPERATING ELECTRICAL CHARACTERISTICS TA = 25°C V+= +5V unless otherwise specified 4303A Parameter Symbol Supply Voltage VS V+ Supply Current IS Voltage Gain AVD Input Offset Voltage VOS Input Offset Current 1 IOS Input Bias Current 1 IB Common Mode Input Voltage Range 2 VICR Min Typ ±1.5 3 50 10 4303 Max Min ±5 10 ±1.5 3 Typ 90 100 50 10 Test Max Unit Conditions ±5 10 V V Dual Supply Single Supply 90 µA RLOAD = ∞ 4 comparators V/mV RLOAD ≥15KΩ RLOAD =1.5KΩ 0°C ≤ TA ≤ 70°C 100 2 5.0 7.0 4 10.0 12.0 mV 0.1 30 800 0.1 30 800 pA 30 1000 0.1 30 1000 pA V+ -1.5 V 0.4 V ISINK =12mA VINPUT =1V Differential mA VOL =1.0V nA VOH = 5.0V 0.1 V+-1.5 -0.3 -0.3 0°C ≤ TA ≤ 70°C 0°C ≤ TA ≤ 70°C Low Level Output Voltage VOL Low Level Output Current IOL High Level Leakage Current ILH 0.1 tRP 6.5 6.5 µs 5 5 µs Response Time 2 Notes: 1 2 0.18 24 0.4 60 0.18 24 20 60 0.1 20 RL =50KΩ CL = 15pF 10mV Input Step/10mV Overdrive RL = 50KΩ CL = 15pF TTL- Level Input Step Consists of junction leakage currents Sample tested parameters ALD4303A/ALD4303 Advanced Linear Devices 2 of 9 TYPICAL PERFORMANCE CHARACTERISTICS SATURATION VOLTAGE vs. TEMPERATURE TRANSFER FUNCTION +6.0 VS = ± 2.5V ISINK = 50mA 1.2 OUTPUT VOLTAGE (V) SATURATION VOLTAGE (V) 1.4 1.0 0.8 0.6 0.4 0.2 TA = 25°C VS = ±6V RL = 50K 0.0 -6.0 0 -55 -25 0 25 50 75 100 125 -2.5 DIFFERENTIAL INPUT VOLTAGE (mV) RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES INPUT VOLTAGE (mV) COMMON - MODE VOLTAGE REFERRED TO SUPPLY VOLTAGE VS = ± 2.5V -0.5 0 V+ VIN 100 ≈ ≈ ≈ 0.5 V-0.5 -55 VOUT 0V ≈ V- -25 0 25 50 75 100 +2.5 TTL 0.0 10mV -2.5 0 125 1 2 3 INPUT VOLTAGE (mV) 1.5 VS = ±2.5V 1.2 0.9 125°C 85°C OUTPUT VOLTAGE (V) 0.3 0.0 15 100 7 TA = 25°C VS = ±2.5V V+ VIN 50K + - 0 0V ≈ VOUT V- ≈ 30 45 60 5mV 10mV 20mV 50mV TTL 0.0 -2.5 75 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 TIM E (µs) OUTPUT SINK CURRENT (mA) ALD4303A/ALD4303 6 +2.5 25°C -25°C -55°C 0 5 RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES SATURATION VOLTAGE vs. SINK CURRENT 0.6 4 TIM E (µs) TEMPERATURE (°C) OUTPUT SATURATION VOLTAGE (V) TA = 25°C VS = ±2.5V 50K + - -1.0 OUTPUT VOLTAGE (V) COMMON - MODE LIMITS (V) 0.5 V+ +2.5 0.0 TEM PERATURE (°C) Advanced Linear Devices 3 of 9 TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) RESPONSE TIME FOR REPRESENTATIVE SAMPLES TOTAL SUPPLY CURRENT vs. TOTAL SUPPLY VOLTAGE 10 + 100 TA = 25°C RL = ∞ 10 VS = ±2.5V TA = 25°C tdLH RESPONSE TIME (µs) SUPPLY CURRENT ( µA) V+ 5 1 0 2.0 6.0 4.0 10.0 8.0 12.0 50 SUPPLY VOLTAGE (V) +3 6 INPUT OFFSET VOLTAGE (mV) NORMALIZED INPUT OFFSET VOLTAGE (mV) 200 150 INPUT OFFSET VOLTAGE vs. SUPPLY VOLTAGE REPRESENTATIVE SAMPLES NORMALIZED INPUT OFFSET VOLTAGE vs. TEMPERATURE VCM = 0V VS = ±2.5V +2 +1 0 -1 -2 -3 TA = 25°C 4 2 0 -2 -4 -6 -55 -25 0 25 50 75 100 2 125 4 TEMPERATURE (°C) RESPONSE TIME FOR REPRESENTATIVE SAMPLES 6 8 SUPPLY VOLTAGE (V) 10 12 OUTPUT LOW VOLTAGE vs. SUPPLY VOLTAGE 10 0.6 VS = ±2.5V TA = 25°C OUTPUT LOW VOLTAGE (V) RESPONSE TIME (µs) 100 SAMPLES tdHL 5 TA = 25°C IOL= 12mA 0.5 0.4 0.3 0.2 0.1 0.0 0 50 100 150 200 2 SAMPLES ALD4303A/ALD4303 Advanced Linear Devices 4 6 8 SUPPLY VOLTAGE (V) 10 12 4 of 9 TYPICAL APPLICATIONS ZERO CROSSING DETECTOR DOUBLE QUAD LIMIT WINDOW COMPARATOR ALD4303 +3V +12V +12V 50K VOUT VIN + 50K +12V VH2 + -3V 1/4 ALD4303 VH1 + +12V VIN MULTIPLE RELAY DRIVE +5V +12V 47K + +5V VL1 VREF + + VIN VL2 50K 1/4 ALD4303 ALD4303 VL1 and VH1 first limit window send warning. VL2 and VH2 second limit window execute system cutoff. VOLTAGE LEVEL TRANSLATOR V+ = +10V 50K VREF VOUT VIN + 1/4 ALD4303 VREF = 1.4V for TTL input VREF = V+ 2 for CMOS input Output VOUT swings from rail-to-rail ALD4303A/ALD4303 Advanced Linear Devices 5 of 9 TYPICAL APPLICATIONS (cont'd) PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER +12V +12V P- Channel VP 02 Power MOSFET +12V R 10K + V1 2A Source VIN 2A Sink 40K +12V R ≥ 50 KΩ R + V2 N - Channel VN 01 Power MOSFET 10K This circuit eliminates crossover current in the complementary power transistors. The outputs can be used to source and sink different loads or tied together to provide push-pull drive of the same load. 1/2 ALD4303 TIME DELAY GENERATOR V+ RF1 1/4 ALD4303 1/4 ALD4303 RELAY 3 V+ VREF VIN + RF2 RT 1/4 ALD4303 RELAY 2 + + CT RF3 1/4 ALD4303 RELAY 1 + RF4 RELAY 1 turns off followed by RELAY 2 and then RELAY 3 with fixed sequence and time delays selectrd by ratios RF1, RF2 , RF3 and RF4. Design & Operating Notes: 1. In order to minimize stray oscillation, all unused inputs must be tied to ground. 2. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room temperature. These 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. 3. 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. ALD4303A/ALD4303 Advanced Linear Devices 6 of 9 SOIC-14 PACKAGE DRAWING 14 Pin Plastic SOIC Package Millimeters E S (45°) Dim Min A 1.35 Max 1.75 Min 0.053 Max 0.069 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-14 8.55 8.75 0.336 0.345 E 3.50 4.05 0.140 0.160 1.27 BSC e D A Inches 0.050 BSC H 5.70 6.30 0.224 0.248 L 0.60 0.937 0.024 0.037 ø 0° 8° 0° 8° S 0.25 0.50 0.010 0.020 A1 e b S (45°) H L ALD4303A/ALD4303 C ø Advanced Linear Devices 7 of 9 PDIP-14 PACKAGE DRAWING 14 Pin Plastic DIP Package Millimeters E E1 D S A2 A1 A L Min Inches Dim A 3.81 Max 5.08 Min 0.105 Max 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-14 17.27 19.30 0.680 0.760 E 5.59 7.11 0.220 0.280 E1 7.62 8.26 0.300 0.325 e 2.29 2.79 0.090 0.110 e1 7.37 7.87 0.290 0.310 L 2.79 3.81 0.110 0.150 S-14 1.02 2.03 0.040 0.080 ø 0° 15° 0° 15° e b b1 c e1 ALD4303A/ALD4303 ø Advanced Linear Devices 8 of 9 CERDIP-14 PACKAGE DRAWING 14 Pin CERDIP Package Millimeters E E1 D A1 s A L L1 L2 b b1 e Inches Dim A Min Max Min 3.55 5.08 0.140 Max 0.200 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 C 0.20 0.38 0.008 0.015 D-14 -- 19.94 -- 0.785 E 5.59 7.87 0.220 0.310 E1 7.73 8.26 0.290 0.325 e 2.54 BSC 0.100 BSC e1 7.62 BSC 0.300 BSC L 3.81 5.08 0.150 0.200 L1 3.18 -- 0.125 -- L2 0.38 1.78 0.015 0.070 S -- 2.49 -- 0.098 Ø 0° 15° 0° 15° C e1 ALD4303A/ALD4303 ø Advanced Linear Devices 9 of 9