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The ADA4097-1HUJZ are single, robust, precision, rail-to-rail input and output operational amplifiers (op amps) with input operating ranges from -VS to +VS and above, with references to tables as Over-The-Top™ in this data sheet. These devices have an offset voltage of <60 μV, an input bias current (IB) of <0.3 nA, and can be operated on a single or split supply from 3 V to 50 V. The ADA4097-1 consumes 32.5 μA of supply current per channel.

The ADA4097-1HUJZ Over-The-Top™ input stage features robust input protection for harsh environments. The inputs can withstand differential voltages up to 80 V without damage or degradation of DC accuracy. The operating common-mode input range extends from rail-to-rail up to 70 V > -VS, independent of the +VS supply.

The ADA4097-1HUJZ is gain-per-unit stable and can drive loads requiring up to 20 mA per channel. These devices can also drive capacitive loads up to 200 pF. These amplifiers feature low power shutdown.

Benefits and Features

Extremely wide common-mode input range: -VS - 0.1 V to -VS + 70 V

Wide supply voltage range: +3 V to +50 V (±25 V supply for PSRR measurement)

Low supply current: 32.5 μA (typical)

Low input offset voltage: ±60 μV (max)

Low input offset voltage drift: ±1 μV/°C (maximum, Class B)

Low input voltage noise

6 Hz typical 1/f noise turn frequency

1000 nV p-p (0.1 Hz to 10 Hz typical)

GBP: 130 kHz (fTEST = 250 Hz, typical)

Swing rate: 0.1 V/μs (ΔVOUT = 4 V, typical)

Low shutdown supply current: 20 μA (max)

Low input offset current: ±300 pA (max)

Large signal voltage gain: 120 dB (ΔVOUT = 3.5 V, min)

Common mode rejection ratio (CMRR): 120 dB (VCM = -0.1 V to +70 V, min)

PSRR: 123 dB (VSY = +3 V to ±25 V, min)

No phase reversal on input overdrive

±2 kV HBM and ±1.25 kV FICDM

Wide operating temperature range: -55°C to +150°C (Class H)

Provides shutdown characteristics for single-channel 6-pin TSOT package

Applications

Industrial sensor conditioning

Power supply current sensing

Battery and power supply monitoring

Front-end amplifiers for harsh environments

4 mA to 20 mA transmitters

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