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  5. LT1990-10


Features and Benefits

  • Gain = 10
  • –3dB Bandwidth = 100kHz
  • High Common Mode Voltage Range:
    • ±250V (VS = ±15V)
    • 85V Window (VS = 5V, 0V)
  • Common Mode Rejection Ratio: 60dB Min
  • Input Protection to ±350V
  • Gain Error: 0.8% Max
  • PSRR: 82dB Min
  • High Input Impedance: 2MΩ Differential, 500kΩ Common Mode
  • Micropower: 180µA Max Supply Current
  • Wide Supply Range: 2.7V to 36V
  • Rail-to-Rail Output
  • 8-pin SO and pin FMEA Compatible MSOP Packages

Product Details

The LT®1990-10 is a micropower precision difference amplifier with a very high common mode input voltage range, a fixed gain of 10 and 100kHz bandwidth. The LT1990-0 operates over a ±250V common mode voltage range on a ±15V supply. The inputs are fault protected from common mode voltage transients up to ±350V and differential voltages up to ±500V. The LT1990-10 is ideally suited for both high side and low side current or voltage monitoring.

On a single 5V supply, the LT1990-10 has an adjustable 85V input range, 60dB min CMRR and draws less than 180µA supply current. The rail-to-rail output maximizes the dynamic range, especially important for single supplies as low as 2.7V.

The LT1990-10 is specified for single 3V, 5V and ±15V supplies over the industrial temperature range.

The LT1990-10 is available in the 8-pin SO and pin FMEA compatible MSOP packages.


  • Battery Cell Voltage Monitoring
  • High Voltage Current Sensing
  • Signal Acquisition in Noisy Environments
  • Input Protection
  • Fault Protected Front Ends
  • Level Sensing
  • Isolation

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This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT1990IMS8-10#PBF Material Declaration Reliability Data 8-Lead MSOP
LT1990IMS8-10#TRPBF Material Declaration Reliability Data 8-Lead MSOP
LT1990IS8-10#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT1990IS8-10#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
Wafer Fabrication Data

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