INA117 Texas instruments

INA117

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INA117

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Описание

The INA117 is a precision unity-gain difference amplifier with very high common-mode input voltage range. It is a single monolithic IC consisting of a precision op amp and integrated thin-film resistor network. It can accurately measure small differential voltages in the presence of common-mode signals up to ±200V. The INA117 inputs are protected from momentary common-mode or differential overloads up to ±500V. In many applications, where galvanic isolation is not essential, the INA117 can replace isolation amplifiers. This can eliminate costly isolated input-side power supplies and their associated ripple, noise and quiescent current. The INA117\x92s 0.001% nonlinearity and 200kHz bandwidth are superior to those of conventional isolation amplifiers. The INA117 is available in 8-pin plastic mini-DIP and SO-8 surface-mount packages, specified for the \x9640°C to +85°C temperature range. The metal TO-99 models are available specified for the \x9640°C to +85°C and \x9655°C to +125°C temperature range.

COMMON-MODE INPUT RANGE:
±200V (V_S = ±15V)
PROTECTED INPUTS:
±500V Common-Mode
±500V Differential
UNITY GAIN: 0.02% Gain Error max
NONLINEARITY: 0.001% max
CMRR: 86dB min
APPLICATIONS
- CURRENT MONITOR
- BATTERY CELL-VOLTAGE MONITOR
- GROUND BREAKER
- INPUT PROTECTION
- SIGNAL ACQUISITION IN NOISY ENVIRONMENTS
- FACTORY AUTOMATION

Number of channels	1
Vs (min) (V)	10
Vs (max) (V)	36
CMRR (min) (dB)	86
Common-mode input low (min) (V)	-200
Common-mode input high (max) (V)	200
Input offset (±) (max) (V)	0.001
Iq (typ) (mA)	2
Slew rate (typ) (V/µs)	2.6
Voltage gain (min) (V/V)	1
Voltage gain (max) (V/V)	1
Small-signal bandwidth (typ) (Hz)	200000
Rating	Catalog
Operating temperature range (°C)	-40 to 85
Gain drift (max) (ppm/°C)	10
Gain error (±) (max) (%)	0.05