ALD2331PAL

ADVANCED LINEAR DEVICES, INC. ALD2331A/ALD2331B/ALD2331 DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN OUTPUT DRIVER GENERAL DESCRIPTION APPLICATIONS The ALD2331A/ALD2331B/ALD2331 is a monolithic high performance dual precision voltage comparator built with advanced silicon gate EPAD® CMOS technology intended for high precision analog applications. The ALD2331A/ALD2331B/ALD2331 offers ultra-low input offset voltages and currents at its input pre-amplifier, precision voltage comparator and high-current output driver integrated on-chip, in one industry standard pinout 8 Lead PDIP or SOIC package. Primary features include: very high typical input impedance of 1012Ω; low input bias current of 10pA; fast response time of 750ns with only 10mV input step signal; very low power dissipation of 55µA per comparator; and single (+5V) or dual (±5V) power supply operation; and 50mA open drain output drivers. • Simple precision reference voltage setting • High source impedance voltage comparison circuits • MOSFET driver • Dual limit window comparator • Power supply voltage monitor • Photo-detector sensor circuit • Relay or LED driver • Oscillators • Battery operated instruments • Remote signal detection The input voltage range includes ground, making this comparator ideal for low level signal detection with high source impedance. The outputs are open-drain configurations, allowing maximum application flexibility, such as wired-OR connection and various different output loads. An external pullup resistor is required for each output, although the value of the pull-up resistor can vary over a wide range in order to suit the application needs. The outputs can be connected to a higher external voltage than V+. BENEFITS The ALD2331A/ALD2331B/ALD2331 is ideal for a great variety of precison analog voltage comparator applications, especially low level signal detection circuits requiring low standby power, yet retaining high output current capability as needed. • Simple precision reference voltage setting • On-chip input pre-amplifier and output buffers • Precision voltage comparison without pre-amplifier • Eliminates need for second power supply • Wide range of pull-up resistor values PIN CONFIGURATION FEATURES • • • • • • • • • • • • • Fanout of 30LS TTL loads Guaranteed to drive 200Ω loads Low supply current of 55µA typical Pinout of LM193 industry standard voltage comparators Extremely low input bias currents -- typically 10pA Virtually eliminates source impedance effects Low operating supply voltage of 3V to 10V Single (+5V) and dual supply (±5V) operation High speed for both large and small level signals -- 300ns typical for TTL inputs CMOS, NMOS and TTL compatible Wired-OR open drain outputs High output sink current -- typically 50mA Low supply current spike ORDERING INFORMATION (“L” suffix for lead free version) Operating Temperature Range * 0°C to +70°C 0°C to +70°C 8-Pin Small Outline Package (SOIC) 8-PinPlastic Dip Package ALD2331ASAL ALD2331BSAL ALD2331SAL ALD2331APAL ALD2331BPAL ALD2331PAL OUT 1 1 8 V+ -IN 1 2 7 OUT 2 +IN 1 3 6 -IN 2 GND 4 5 +IN 2 SAL, PAL PACKAGES BLOCK DIAGRAM (8) V+ INVERTING INPUT -IN 1 (2) (1) OUT 1 NONINVERTING INPUT +IN 1 (3) V+ INVERTING INPUT -IN 2 (6) (7) OUT 2 NONINVERTING INPUT +IN 2 (5) (4) GND * 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+ Differential input voltage range Power dissipation Operating temperature range SAL, PAL packages Storage temperature range Lead temperature, 10 seconds +10.6V -0.3V to V+ +0.3V 600 mW 0°C to +70°C -65°C to +150°C +260°C OPERATING ELECTRICAL CHARACTERISTICS TA = 25°C V+ = +5V unless otherwise specified 2331A Parameter Symbol Min Supply Voltage VS V+ ±1.5 3 Supply Current IS Typ ±5 10 110 Voltage Gain AVD Input Offset Voltage VOS 0.2 Input Offset Current1 IOS IB Input Bias Current1 Common Mode Input 2 Voltage Range VICR Low Level Sink Output Voltage VOL Low Level Sink Output Current IOL High Level Sink Output Leakage Current 2 Response Time 50 Min Typ ±1.5 3 180 150 ±5 10 110 50 2331 Max Min ±1.5 3 180 150 Typ 110 50 Max Unit V V Dual Supply Single Supply 180 µA No Load Two Comparators 150 V/mV RLOAD ≥ 15K RLOAD ≥ 1.5KΩ 0.5 1.0 1.0 2.0 mV 0.01 20 0.01 20 0.01 20 pA 0.01 20 0.01 20 0.01 20 pA V+-1.5 V V+-1.5 0.15 0.4 50 IL 0.01 tRP 1.1 0.15 24 20 V+-1.5 -0.3 0.4 50 0.01 -0.3 0.15 24 20 0.4 50 0.01 Test Conditions ±5 10 0.5 -0.3 24 2331B Max 20 V ISINK = 12mA VINPUT = 1V Differential mA VOL = 1.0 V SINK OUTPUT ON nA VOUT = 5.0 V SINK OUTPUT OFF 1.1 1.1 µs RL = 5.1KΩ, CL = 15pF 5mV Input Step/ 5mV Overdrive tRP 2.4 2.4 2.4 µs RL = 5.1KΩ ,CL =15pF 1mVInput Step/ 1mV Overdrive tRP 600 600 600 ns RL = 5.1KΩ, CL = 15pF 100mV Input Step/ 5mV Overdrive tRP 300 300 300 ns RL = 5.1KΩ ,CL =15pF TTL level Input Step Common Mode Rejection Ratio CMRR 80 80 80 dB VINPUT = 0V to 2.5V Power Supply Rejection Ratio PSRR 75 75 75 dB V+ = 4V to 5V Notes: 1 2 Consists of junction leakage currents Sample test parameter ALD2331A/ALD2331B/ALD2331 Advanced Linear Devices 2 of 8 TYPICAL PERFORMANCE CHARACTERISTICS COMMON - MODE VOLTAGE LIMITS (V) TRANSFER FUNCTION OUTPUT VOLTAGE (V) +5.0 TA = 25°C 0.0 -5.0 -2.5 +2.5 0.0 COMMON - MODE VOLTAGE REFERRED TO SUPPLY VOLTAGE 0.5 V+ VS = ± 2.5 V -0.5 -1.0 ≈ ≈ 0.5 V-0.5 -55 -25 0 DIFFERENTIAL INPUT VOLTAGE (mV) SUPPLY CURRENT vs.TEMPERATURE 50 75 100 125 SUPPLY CURRENT vs. SUPPLY VOLTAGE 200 200 V+ = +5V No Load Two Comparators 180 160 180 SUPPLY CURRENT (µA) SUPPLY CURRENT (µA) 25 TEMPERATURE (°C) 140 120 100 80 No Load Two Comparators 160 TA = -550C 140 120 TA = 250C 100 80 60 TA = 1250C 40 20 60 0 -55 -25 0 25 50 75 100 125 2 4 6 8 10 INPUT BIAS CURRENT vs. TEMPERATURE LOW LEVEL OUTPUT VOLTAGE vs. TEMPERATURE LOW LEVEL OUTPUT VOLTAGE (V) SUPPLY VOLTAGE (V) 1000 INPUT BIAS CURRENT (pA) 0 AMBIENT TEMPERATURE (°C) V+ = +5V 100 10 1 0 -55 -25 0 25 50 75 100 125 0.5 ISINK = 12mA VINPUT = 1V Differential 0.4 V+ = +3.5V 0.3 V+ = +5V 0.2 0.1 V+ = +10V 0.0 -55 -25 0 25 50 75 100 125 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (0C) ALD2331A/ALD2331B/ALD2331 12 Advanced Linear Devices 3 of 8 TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) 2.0 1.6 RL = 5.1KΩ + V = +2.5V 1.2 0.8 0.4 0.0 + V = +5V -0.4 -0.8 -1.2 -1.6 -2.0 -55 -25 0 25 50 COMMON MODE REJECTION RATIO vs. TEMPERATURE COMMON MODE REJECTION MODE (dB) INPUT OFFSET VOLTAGE (mV) INPUT OFFSET VOLTAGE vs. TEMPERATURE 75 100 90.0 V+ = +5V RL = 5.1KΩ 85.0 80.0 75.0 70.0 65.0 60.0 -55 125 0 V = +5V TA = 125 C TA = 850C 2.0 TA = 250C 1.5 TA = -250C 1.0 0.5 TA = -550C 0.0 0 15 30 60 45 75 100.0 VOH = V+ 100 125 TA = 1250C TA = 850C 1.0 0.1 TA = 250C 0.0 3 4 5 6 7 8 9 10 11 OUTPUT OFF-STATE VOLTAGE (V) POWER SUPPLY REJECTION RATIO vs.TEMPERATURE RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES 90.0 6.0 + V = +5V RL = 5.1KΩ OUTPUT VOLTAGE (V) POWER SUPPLY REJECTION RATIO (dB) 75 10.0 OUTPUT SINK CURRENT (mA) 85.0 50 OUTPUT OFF-STATE VOLTAGE vs. OUTPUT LEAKAGE CURRENT OUTPUT LEAKAGE CURRENT (nA) OUTPUT SATURATION VOLTAGE (V) 3.0 2.5 25 AMBIENT TEMPERATURE (°C) SATURATION VOLTAGE vs. SINK CURRENT + 0 -25 AMBIENT TEMPERATURE (°C) 80.0 75.0 70.0 65.0 5.0 RL = 5.1KΩ CL = 15pF Input Step 50mV 4.0 20mV 3.0 10mV 2.0 5mV 2mV 1mV 1.0 0.0 60.0 -55 -25 0 25 50 75 100 AMBIENT TEMPERATURE (0C) ALD2331A/ALD2331B/ALD2331 125 0 V+ = +5V TA = 25 C -1.0 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 TIME (µS) Advanced Linear Devices 4 of 8 TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES OUTPUT LOW VOLTAGE vs. SUPPLY VOLTAGE 6.0 OUTPUT LOW VOLTAGE (V) 0.6 OUTPUT VOLTAGE (V) 5.0 1mV 4.0 RL = 5.1KΩ CL = 15pF Input Step 3.0 2.0 20mV 5mV 10mV 1.0 2mV 50mV 0.0 + V = +5V TA = 250C -1.0 TA = 25°C IOL= 12mA 0.5 0.4 0.3 0.2 0.1 0.0 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 2 4 6 8 SUPPLY VOLTAGE (V) TIME (µS) 12 10 TYPICAL APPLICATIONS PRECISION SINGLE SUPPLY VOLTAGE VOLTAGE COMPARATOR WITH COMPARATOR WITH DIRECT RELAY DRIVER COMPLEMENTARY OUTPUTS V+ + Q +5 - +5 5VRELAY VR - VIN + VREF VIN + Q - VOLTAGE COMPARATOR VOLTAGE COMPARATOR WITH SINGLE WITH +/-5V SUPPLY AND +5V RELAY DRIVE SUPPLY AND OUTPUT LEVEL SHIFT VA= 0V to +10V +5 +5V VINVIN+ - 5VRELAY + 1K VIN- - VIN+ + +10V 0 -5 ALD2331A/ALD2331B/ALD2331 VOUT VOUT Advanced Linear Devices 5 of 8 TYPICAL APPLICATIONS (cont'd) VOLTAGE COMPARATOR WITH +/-5V VOLTAGE COMPARATOR WITH OUTPUT LEVEL SUPPLY AND OUTPUT LEVEL SHIFT SHIFT AND HIGH CURRENT LOAD DRIVER +5V +5V +5V 100K 15K R1= 15K +5V VIN- VOUT + 100K +5V VOUT - 0.1µF 15K VOUT - VOUT 0.066V 0 VIN+ 0.1µF 200Ω R2=50 + RLoad -5V -4V -5V RESPONSE TIME MEASUREMENT CIRCUIT Response time is defined as the internal between the application of an input step function and the instant when the output reaches 50% of its maximum value as measured by the following test circuit: +5V 5.1KΩ 10X INPUT STEP 9KΩ OUT + VIN 1KΩ DUAL LIMIT PHOTO DETECTOR MONITOR DUAL LIMIT WINDOW COMPARATOR VExternal V+ VREF(HIGH) + V+ BUZZER RLOAD LED VLIMIT2 VOUT + + N VREF(LOW) MINIMUM RLOAD = 1.5KΩ LIGHT VLIMIT 1 PHOTODETECTOR LED turns on as photo-detector voltage reaches VLIMIT1. Both LED and horn turns on as photo-detector voltage reaches VLIMIT2. VEXTERNAL= +10V, V+ = +5V OUTPUT HIGH FOR VIN < VREF(HIGH) AND VIN > VREF(LOW) ALD2331A/ALD2331B/ALD2331 + Advanced Linear Devices 6 of 8 SOIC-8 PACKAGE DRAWING 8 Pin Plastic SOIC Package E Millimeters Dim S (45°) D A Min 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-8 4.69 5.00 0.185 0.196 E 3.50 4.05 0.140 0.160 1.27 BSC e A A1 e 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 b S (45°) H L ALD2331A/ALD2331B/ALD2331 C ø Advanced Linear Devices 7 of 8 PDIP-8 PACKAGE DRAWING 8 Pin Plastic DIP Package E E1 Millimeters D S A2 A1 e b b1 A L Inches Dim Min Max Min Max 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 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 L 7.37 7.87 0.290 0.310 2.79 3.81 0.110 0.150 S-8 1.02 2.03 0.040 0.080 0° 15° 0° 15° ø c e1 ø ALD2331A/ALD2331B/ALD2331 Advanced Linear Devices 8 of 8