ALD2301

ALD2301A ALD | Alldatasheet

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Technical content

Operating Temperature Range * -55°C to +125°C0 °C to +70°C0 °C to +70°C 8-Pin 8-Pin 8-Pin CERDIP Small Outline Plastic Dip Package Package (SOIC) Package ALD 2301A DA ALD2301A SA ALD2301A PA ALD 2301B DA ALD 2301B SA ALD2301B PA ALD 2301 DA ALD 2301 SA ALD2301 PA ALD 2301C DA ALD 2301C SA ALD2301C PA DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN DRIVER ALD2301A/ALD2301B ALD2301/ALD2301C ADVANCED LINEAR D EVICES, INC.

ORDERING INFORMATION

The ALD2301A/ALD2301B/ALD2301/ALD2301C 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. 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/ALD2301/ALD2301C 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.

FEATURES

• Fanout of 30 LS TTL loads
• Low supply current of 110µA typical
• Functional equivalent to LM193 industry standard comparators
• Extremely low input bias currents -- 10pA typical
• Virtually eliminates source impedance effects
• Low operating supply voltage of 3V to 12V
• 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 -- 60mA typical
• Low supply current spikes

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 OUT 1 -IN 1 +IN 1 GND OUT 2 -IN 2 +IN 2 TOP VIEW DA, PA, SA PACKAGE (1) OUT 1 (7) OUT 2 (4) GND (8) V+ NONINVERTING INPUT +IN 1 (3) INVERTING INPUT NONINVERTING INPUT INVERTING INPUT -IN 1 (2) +IN 2 (5) -IN 2 (6) * Contact factory for industrial temperature range © 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com

7-2 Advanced Linear Devices ALD2301A/ALD2301B ALD2301/ALD2301C Voltage V + 3 12 3 12 3 12 3 12 V Supply Supply I S 110 180 110 180 110 180 110 180 µAR LOAD = ∞ Current Voltage Gain A VD 50 150 50 150 50 150 50 150 V/mV R LOAD ≥ 15KΩ Input Offset V OS 10 2 5 20 mV R LOAD ≥ 1.5KΩ Voltage Input Offset IOS 10 200 10 200 10 200 10 400 pA Current1 Input Bias I B 10 200 10 200 10 200 10 400 pA Current1 Common Mode Input V Voltage Range Output Voltage VINPUT = 1V Differential Low Level Output I OL 24 60 24 60 24 60 24 60 mA V OL = 1.0 V Current High Level Current Response t RP 650 650 650 650 ns R L = 5.1KΩ Time C L = 15pF 100mV Input Step/5mV Overdrive 300 300 300 300 ns R L = 5.1KΩ C L =15pF TTL - Level Input Step ABSOLUTE MAXIMUM RATINGS Supply voltage, V+ 13.2V Differential input voltage range -0.3V to V + +0.3V Power dissipation 600 mW Operating temperature range PA, SA package 0 °C to +70°C DA package -55 °C to +125°C Storage temperature range -65°C to +150°C Lead temperature, 10 seconds +260°C OPERATING ELECTRICAL CHARACTERISTICS TA = 25°C V+ = +5V unless otherwise specified 2301 2301A 2301B 2301C Test Parameter Symbol Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit Conditions Notes : 1 Consists of junction leakage currents. 2 Sample tested parameters.

ALD2301A/ALD2301B Advanced Linear Devices 7-3 ALD2301/ALD2301C TYPICAL PERFORMANCE CHARACTERISTICS SA TURA TION VOL TAGE vs. SINK CURRENT OUTPUT SINK CURRENT (mA) 0 1 53 04 56 07 5 1.5 1.2 0.9 0.6 0.3 0.0 OUTPUT SATURATION VOLTAGE (V) VS = –2.5V -55°C 25°C -25°C 85°C 125°C TIME ( µS) -2.5 0.0 +2.5 100 OUTPUT VOLTAGE (V) INPUT VOLTAGE (mV) ≈ ≈ TA = 25°C VS = –2.5V 2mV 10mV 20mV 50mV 5mV RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES 5.1K VIN VOUT SA TURA TION VOL TAGE vs.TEMPERATURE TEMPERATURE ( °C) -55 -25 0 25 50 125 10075 1.4 1.2 1.0 0.8 0.6 0.4 0.2 SATURATION VOLTAGE (V) VS = – 2.5V ISINK = 50mA TRANSFER FUNCTION DIFFERENTIAL INPUT VOLTAGE (mV) +6.0 -6.0 0.0 OUTPUT VOLTAGE (V) +2.50.0-2.5 TA = 25°C VS = –6V R L = 5.1K TIME (µs) RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES +2.5 100 0.0 -2.5 INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V) TA = 25°C VS = –2.5V 50mV 20mV 5mV 10mV 2mV 5.1K VIN VOUT COMMON - MODE VOL TAGE REFERRED TO SUPPL Y VOL TAGE TEMPERATURE ( °C) 0.5 -0.5 -1.0 0.5 -0.5 COMMON - MODE VOLTAGE LIMITS (V) -55 -25 0 25 50 125 10075 VS = – 2.5V

7-4 Advanced Linear Devices ALD2301A/ALD2301B ALD2301/ALD2301C TYPICAL PERFORMANCE CHARACTERISTICS 120 100 140 02 5 50 75-25-55 TEMPERATURE ( °C) SUPPLY CURRENT ( µA) 100 160 180 200 125 VS = –2.5V No Load All comparators SUPPLY CURRENT vs. TEMPERATURE 2.4 2.2 2.0 1.8 2.6 02 5 50 75-25-55 TEMPERATURE ( °C) OFFSET VOLTAGE (mV) 100 2.8 3.0 125 VCM = 0V VS = – 2.5V INPUT OFFSET VOLTAGE vs. TEMPERATURE TYPICAL APPLICATIONS 140 120 100 160 SUPPLY VOLTAGE (V) SUPPLY CURRENT ( µA) TA = 25°C R L = ∞ TOTAL SUPPLY CURRENT vs. TOTAL SUPPLY VOLTAGE DUAL LIMIT WINDOW COMPARATOR LED turns on as photo-detector voltage reaches V LIMIT1. Both LED and horn turns on as photo-detector voltage reaches VLIMIT2. V EXTERNAL = +12V V+ = +5V. DUAL LIMIT PHOTO-DETECTOR MONITOR VOLTAGE COMPARATOR WITH COMPLEMENTARY OUTPUTS 1/2 ALD2301 OUTPUT HIGH FOR V IN < VREF(HIGH) MINIMUM R LOAD = 1.5KΩ > AND VOUT VIN VREF(HIGH) 1/2 ALD2301 VREF(LOW) VREF(LOW) R LOAD VIN + Q QVIN VREF 1/2 ALD2301 1/2 ALD2301 VLIMIT2 PHOTO- DETECTOR LIGHT LED BUZZER VLIMIT 1 VExternal 1/2 ALD2301 1/2 ALD2301