INA117 High Common-Mode Voltage Difference Amplifier | TI.com

INA117 (ACTIVE)

High Common-Mode Voltage Difference Amplifier

High Common-Mode Voltage Difference Amplifier - INA117
 

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

View more

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