ADVANCED LINEAR DEVICES, INC. ALD2301A/ALD2301B ALD2301C/ALD2301 DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER GENERAL DESCRIPTION FEATURES The ALD2301A/ALD2301B/ALD2301C/ALD2301 is a monolithic high performance dual voltage comparator built with advanced silicon gate CMOS technology. It features very high typical input impedance of 1012Ω; low input bias current of 10pA; fast response time of 300ns; very low power dissipation of 55µA per comparator; and single (+5V) or dual (±5V) power supply operation. • Fanout of 30LS TTL loads • Low supply current of 110µA typical • Functional equivalent to LM193 industry standard 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 signal and low level signals -- 300ns typical for TTL inputs • CMOS, NMOS and TTL compatible • Wired-OR open drain outputs • High output sinking current -- typically 60mA • Low supply current spikes The input voltage range includes ground, making this comparator ideal for low level signal detection with high source impedance. The outputs are open-drain configuration, allowing maximum application flexibility, such as wired-OR connection. The outputs can be connected to a higher external voltage than V +. The ALD2301A/ALD2301B/ALD2301C/ALD2301 is ideal for a great variety of voltage comparator applications, especially low level signal detection circuits requiring low standby power, yet retaining high output current capability as needed. APPLICATIONS • • • • • • • • High source impedance voltage comparison circuits Dual limit window comparator Power supply voltage monitor Photo-detector sensor circuit Relay or LED driver Oscillators Battery operated instruments Remote signal detection BENEFITS • Low power and high precision combination • Built-in high input impedance buffer • Built-in output driver with up to 60mA sink current ORDERING INFORMATION (“L” suffix for lead free version) 0°C to +70°C PIN CONFIGURATION OUT1 1 8 V+ -IN 1 2 7 OUT 2 +IN 1 3 6 -IN 2 GND 4 5 +IN 2 SAL, PAL, DA PACKAGES BLOCK DIAGRAM Operating Temperature Range * 0°C to +70°C -55°C to +125°C 8-Pin Small Outline Package (SOIC) 8-Pin Plastic Dip Package 8-Pin CERDIP Package (8) V+ INVERTING INPUT -IN 1 (2) (1) OUT 1 NONINVERTING INPUT +IN 1 (3) V+ ALD2301ASAL ALD2301BSAL ALD2301CSAL ALD2301SAL ALD2301APAL ALD2301BPAL ALD2301CPAL ALD2301PAL ALD2301ADA ALD2301BDA ALD2301CDA ALD2301DA 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 DA 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 Parameter Symbol Min 2301A Typ Max Min 2301B Typ Max Min 2301C Typ Max Min ±1.5 3 ±5 10 ±1.5 3 Supply Voltage VS V+ Supply Current IS Voltage Gain AVD Input Offset Voltage VOS Input Offset Current1 IOS 10 200 10 200 10 400 Input Bias Current1 IB 10 200 10 200 10 400 Common Mode Input Voltage 2 Range VICR ±1.5 3 ±5 10 110 50 ±1.5 3 180 150 ±5 10 110 50 150 2 -0.3 Low Level VOL Output Voltage V+ -1.5 0.15 180 110 50 180 150 -0.3 0.4 V+ -1.5 0.15 110 50 5 2301 Typ 0.4 V+ -1.5 0.15 Dual Supply Single Supply 180 µA RLOAD = ∞ V/mV RLOAD ≥ 15KΩ mV 10 200 pA 10 200 pA 0.15 Test Conditions V V 10 -0.3 0.4 Unit ±5 10 150 20 -0.3 Max RLOAD ≥ 1.5KΩ V+ -1.5 V 0.4 V ISINK = 12mA VINPUT = 1V Differential mA VOL = 1.0 V nA VOH = 5.0 V Low Level Output Current IOL High Level Leakage Current IOH .01 tRP 650 650 650 650 ns RL = 5.1KΩ CL = 15pF 100mV Input Step/5mV Overdrive 300 300 300 300 ns RL = 5.1KΩ Response 2 Time 24 60 24 20 60 .01 24 20 60 .01 24 20 60 .01 20 CL =15pF TTL - Level Input Step Notes : 1 2 Consists of junction leakage currents. Sample tested parameters. ALD2301A/ALD2301B/ALD2301C/ALD2301 Advanced Linear Devices 2 of 7 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 = 5.1K 0.0 -6.0 0 -25 0 25 50 75 100 -2.5 125 DIFFERENTIAL INPUT VOLTAGE (mV) COMMON - MODE VOLTAGE REFERRED TO SUPPLY VOLTAGE RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES V+ INPUT VOLTAGE (mV) 0.5 VS = ± 2.5V -0.5 0 ≈ ≈ 0.5 V-0.5 -25 0 25 50 75 100 VIN 5.1K + - ≈ VOUT 0V +2.5 5mV 50mV 0.0 10mV 20mV 2mV -2.5 125 0.0 0.2 0.4 INPUT VOLTAGE (mV) VS = ±2.5V 1.2 0.9 100 1.0 1.2 1.4 OUTPUT VOLTAGE (V) 85°C 25°C -25°C -55°C 0.0 15 30 45 60 OUTPUT SINK CURRENT (mA) TA = 25°C VS = ±2.5V V+ VIN 0 5.1K + - ≈ 125°C ALD2301A/ALD2301B/ALD2301C/ALD2301 0.8 RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES 1.5 0 0.6 TIM E (µs) SATURATION VOLTAGE vs. SINK CURRENT 0.3 ≈ V- TEMPERATURE (°C) 0.6 TA = 25°C VS = ±2.5V V+ 100 -1.0 -55 OUTPUT SATURATION VOLTAGE (V) +2.5 0.0 TEM PERATURE (°C) OUTPUT VOLTAGE (V) COMMON - MODE VOLTAGE LIMITS (V) -55 0V VOUT V- 2mV +2.5 ≈ 5mV 10mV 20mV 50mV 0.0 -2.5 75 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 TIME ( µS) Advanced Linear Devices 3 of 7 TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) TOTAL SUPPLY CURRENT vs. TOTAL SUPPLY VOLTAGE SUPPLY CURRENT vs. TEMPERATURE 200 + 160 VS = ±2.5V No Load All comparators 180 TA = 25°C RL = ∞ SUPPLY CURRENT (µA) SUPPLY CURRENT ( µA) V+ 140 120 100 80 160 140 120 100 80 60 2.0 6.0 4.0 12.0 10.0 8.0 -55 -25 SUPPLY VOLTAGE (V) 0 25 50 100 75 125 TEMPERATURE (°C) INPUT OFFSET VOLTAGE vs. TEMPERATURE OFFSET VOLTAGE (mV) 3.0 2.8 VCM = 0V VS = ± 2.5V 2.6 2.4 2.2 2.0 1.8 -55 -25 0 50 25 75 100 125 TEMPERATURE (°C) TYPICAL APPLICATIONS DUAL LIMIT WINDOW COMPARATOR DUAL LIMIT PHOTO-DETECTOR MONITOR VExternal V+ V+ 1/2 ALD2301 VREF(HIGH) V+ RLOAD + VOLTAGE COMPARATOR WITH COMPLEMENTARY OUTPUTS BUZZER 1/2 ALD2301 LED - VLIMIT2 + Q - 1/2 ALD2301 + VREF VOUT - + VIN VIN LIGHT VREF(LOW) 1/2 ALD2301 MINIMUM RLOAD = 1.5KΩ PHOTODETECTOR VLIMIT 1 + + - Q 1/2 ALD2301 1/2 ALD2301 OUTPUT HIGH FOR VIN < VREF(HIGH) AND VIN > VREF(LOW) ALD2301A/ALD2301B/ALD2301C/ALD2301 LED turns on as photo-detector voltage reaches VLIMIT1. Both LED and horn turns on as photo-detector voltage reaches VLIMIT2. VEXTERNAL = +12V V+ = +5V. Advanced Linear Devices 4 of 7 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 C ø ALD2301A/ALD2301B/ALD2301C/ALD2301 Advanced Linear Devices 5 of 7 PDIP-8 PACKAGE DRAWING 8 Pin Plastic DIP Package Millimeters E E1 D S A2 A1 A L e b 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 7.37 7.87 0.290 0.310 L 2.79 3.81 0.110 0.150 S-8 1.02 2.03 0.040 0.080 0° 15° 0° 15° ø b1 Inches c e1 ø ALD2301A/ALD2301B/ALD2301C/ALD2301 Advanced Linear Devices 6 of 7 CERDIP-8 PACKAGE DRAWING 8 Pin CERDIP Package E E1 Millimeters D A1 s A L L2 b b1 e L1 Min Inches Dim A 3.55 Max 5.08 0.140 Min 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-8 -- 10.29 -- 0.405 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 ø ALD2301A/ALD2301B/ALD2301C/ALD2301 Advanced Linear Devices 7 of 7