The MAX4194 is a variable-gain precision instrumentation amplifier that combines Rail-to-Rail; single-supply operation, outstanding precision specifications, and a high gain bandwidth. This amplifier is also offered in three fixed-gain versions: the MAX4195 (G = +1V/V), the MAX4196 (G = +10V/V), and the MAX4197 (G = +100V/V). The fixed-gain instrumentation amplifiers feature a shutdown function that reduces the quiescent current to 8µA. A traditional three operational amplifier configuration is used to achieve maximum DC precision. The MAX4194–MAX4197 have rail-to-rail outputs and inputs that can swing to 200mV below the negative rail and to within 1.1V of the positive rail. All parts draw only 93µA and operate from a single +2.7V to +7.5V supply or from dual ±1.35V to ±3.75V supplies. These amplifiers are offered in 8-pin SO packages and are specified for the extended temperature range (-40°C to +85°C). See the MAX4198/MAX4199 data sheet for single-supply, precision differential amplifiers.
title | Download file |
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MAX4194-MAX4197 Data Sheet | MAX4194-MAX4197.pdf |
Part Number | Architecture | Amps. | VCMVR | Rail to Rail | AV (V/V) | VSUPPLY (Total) (V) | VSUPPLY (Total) (V) | ICC per Amp. (mA) | ICC per Amp. (mA) | VOS (µV) | CMRR @DC (dB) | PSRR @DC (dB) | Input IBIAS (nA) | Unity Gain BW (MHz) | Slew Rate (V/µs) | VCMVR (V) | en (nV/√Hz) | in (pA/√Hz) | Noise Spec'd @ | Low Pwr. Shutdn | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
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to Neg. Rail | min | max | typ | max | max | typ | typ | max | typ | typ | < | See Notes | |||||||||||
MAX4194 | Classic 3 Op. Amp. | 1 | No | Output Only | 1 to 10000 | 2.7 | 7.5 | 0.093 | 0.11 | 450 | 115 | 120 | 20 | 0.25 | 0.06 | VEE+0.2 to VCC-1.1 | 72 | 0.1 | 10kHz | No | -40 to +85 | SOIC(N)/8 | $2.31 @1k |
MAX4195 | 1 | 95 | 0.22 | VEE-0.2 to VCC-1.1 | 72 | SOIC(N)/8 | $2.74 @1k | ||||||||||||||||
MAX4196 | 10 | 115 | 0.34 | VEE+0.2 to VCC-1.1 | 31 | SOIC(N)/8 | $2.31 @1k | ||||||||||||||||
MAX4197 | 100 | 115 | 0.003 | VEE+0.2 to VCC-1.1 | 8.7 | SOIC(N)/8 | $2.58 @1k | ||||||||||||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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MAX4194ESA | No Longer Available | MAX4194ESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
MAX4194ESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
MAX4194ESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
MAX4194ESA-G069 | No Longer Available | N.SO; | -40°C to +85°C | See data sheet | |
MAX4194ESA-T | No Longer Available | MAX4194ESA+T | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
MAX4194ESA-TG069 | No Longer Available | N.SO; | -40°C to +85°C | See data sheet |