INA117 (ACTIVE)

High Common-Mode Voltage Difference Amplifier

 

Recommended alternative parts

  • INA149  -  Wide ±275V common mode input range

Description

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.

Features

  • COMMON-MODE INPUT RANGE:
    ±200V (VS = ±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

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Parametrics Compare all products in Difference Amplifiers

 
Number of Channels (#)
Vs (Min) (V)
Vs (Max) (V)
CMRR (Min) (dB)
Common Mode Input Low (Min) (V)
Common Mode Input High (Max) (V)
Input Offset (+/-) (Max) (uV)
Iq (Typ) (mA)
Small Signal Bandwidth (Typ) (MHz)
Slew Rate (Typ) (V/us)
Gain (Min) (V/V)
Gain (Max) (V/V)
Gain Error (+/-) (Max) (%)
Rating
Operating Temperature Range (C)
Input Offset Drift (+/-) (Max) (uV/C)
Gain Drift (Max) (ppm/C)
Pin/Package
INA146 INA148 INA148-Q1 INA149
1    1    1    1   
2.76    2.7    2.7    4   
36    36    36    36   
76    70    70    90   
-100    -200    -200    -275   
100    200    200    275   
5000    5000    5000    1100   
0.6    0.6    0.6    0.81   
0.5    0.1    0.1    0.5   
0.45    1    1    5   
0.1    1    1    1   
100    1    1    1   
0.1    0.075    0.076    0.02   
Catalog    Catalog    Automotive    Catalog   
-40 to 85    -55 to 125    -40 to 125    -40 to 125   
100    100    100    10   
1    3    3    10   
8SOIC    8SOIC    8SOIC    8SOIC