The MAX971–MAX974 and MAX981–MAX984 single/dual/quad low-voltage comparators feature the lowest power consumption available. These micropower devices draw less than 4µA supply current over temperature (MAX971/MAX972/MAX981/MAX982), and include an internal 1.182V ±1% (MAX971/MAX973/ MAX974) or ±2% (MAX981–MAX984) voltage reference and programmable hysteresis. Ideal for 3V or 5V single-supply applications, these devices operate from a single 2.5V to 11V supply (or ±1.25V to ±5.5V dual supplies), and each comparator's input voltage ranges from the negative supply rail to within 1.3V of the positive supply. The single MAX971/MAX981 and the dual MAX973/ MAX982/MAX983 provide a unique, simple method for adding hysteresis without feedback or complicated equations, simply by using the HYST pin plus two resistors. The MAX971–MAX974 and MAX981–MAX984's open-drain outputs permit wire-ORed configurations. Thanks to an 11V output range and separate GND pin for the output transistor (MAX971/MAX974, MAX981/MAX984), these devices are ideal for level translators and bipolar to single-ended converters. For similar devices with complementary output stages, see the MAX921-MAX924 (1% reference) and the MAX931–MAX934 (2% reference).
title | Download file |
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MAX971-MAX984 Data Sheet | MAX971-MAX984.pdf |
Part Number | Comp- arators | tPD (ns) | Input Range | VSUPPLY (Total) (V) | VSUPPLY (Total) (V) | ICC per Comp. (µA) | VOS (mV) | Logic Out | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
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typ | min | max | max | max | See Notes | ||||||
MAX972 | 2 | 12000 | to Neg. Rail | 2.5 | 11 | 1.6 | 10 | Open Drain | -40 to +85 0 to +70 | µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 UCSP/9 | $1.68 @1k |
Part Number | Comp- arators | Thresh. (V) | Internal Ref. Accuracy (%) | tPD (µs) | VSUPPLY (V) | VSUPPLY (V) | ICC (µA) | Prog. Hyst. | VOS (mV) | Logic Out | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
typ | min | max | max | max | See Notes | ||||||||
MAX971 | 1 | 1.182 | 1 | 12 | 2.5 | 11 | 3.2 | Yes | 10 | Open Drain | -55 to +125 -40 to +85 0 to +70 | µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $2.91 @1k |
MAX973 | 2 | 1 | 4.5 | Yes | -55 to +125 -40 to +85 0 to +70 | µMAX/8 CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $3.00 @1k | ||||||
MAX974 | 4 | 1 | 6.6 | No | -55 to +125 -40 to +85 0 to +70 | PDIP(N)/16 SOIC(N)/16 | $3.32 @1k | ||||||
MAX981 | 1 | 2 | 3.2 | Yes | -40 to +85 0 to +70 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $2.20 @1k | ||||||
MAX982 | 2 | 2 | 4.5 | Yes | -40 to +85 0 to +70 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $2.47 @1k | ||||||
MAX983 | 2 | 2 | 4.5 | Yes | -40 to +85 0 to +70 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $2.48 @1k | ||||||
MAX984 | 4 | 2 | 6.6 | No | -40 to +85 0 to +70 | PDIP(N)/16 SOIC(N)/16 | $2.79 @1k | ||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
---|---|---|---|---|---|
MAX971C/D | No Longer Available | DICE SALES,;NA pin;DICE; | 0°C to +70°C | See data sheet | |
MAX971CPA | No Longer Available | MAX971CPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
MAX971CPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
MAX971CSA | No Longer Available | MAX971CSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
MAX971CSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
MAX971CSA+T | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
MAX971CSA-T | No Longer Available | MAX971CSA+T | N.SO;8 pin | 0°C to +70°C | See data sheet |
MAX971CUA | No Longer Available | MAX971CUA+ | µMAX,;8 pin;15.6 mm² | 0°C to +70°C | No |
MAX971CUA+ | Active | µMAX,;8 pin;15.6 mm² | 0°C to +70°C | Lead Free | |
MAX971CUA+T | Active | µMAX,;8 pin;15.6 mm² | 0°C to +70°C | Lead Free | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX971CUA-T | No Longer Available | MAX971CUA+T | µMAX,;8 pin;15.6 mm² | 0°C to +70°C | No |
MAX971EPA | No Longer Available | MAX971EPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
MAX971EPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
MAX971ESA | No Longer Available | MAX971ESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
MAX971ESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
MAX971ESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
MAX971ESA-T | No Longer Available | MAX971ESA+T | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
MAX971MJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No |