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INA951-SEP

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Space-enhanced-product, -4V to 80V, 1.3MHz current-sense amplifier

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Data sheet

INA951-SEP

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Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -4 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.05 Features High frequency Rating Space Voltage gain (V/V) 20 CMRR (min) (dB) 140 Bandwidth (kHz) 1300 Supply voltage (max) (V) 10 Supply voltage (min) (V) 2.7 Iq (max) (mA) 2.25 Number of channels 1 Comparators (#) 0 Gain error (%) 0.15 Slew rate (V/µs) 2.5 Operating temperature range (°C) -55 to 125
Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -4 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.05 Features High frequency Rating Space Voltage gain (V/V) 20 CMRR (min) (dB) 140 Bandwidth (kHz) 1300 Supply voltage (max) (V) 10 Supply voltage (min) (V) 2.7 Iq (max) (mA) 2.25 Number of channels 1 Comparators (#) 0 Gain error (%) 0.15 Slew rate (V/µs) 2.5 Operating temperature range (°C) -55 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • VID In Progress
  • Radiation - Total Ionizing Dose (TID):
    • TID performance assurance up to 30krad(Si)
    • Radiation Lot Acceptance Testing (RLAT) for every wafer lot up to 30krad(Si)
  • Radiation - Single-Event Effects (SEE):
    • Single Event Latch-Up (SEL) immune up to 43MeV-cm2 /mg at 125°C
    • Single Event Transient (SET) characterized up to LET = 47.5MeV-cm2 /mg
  • Supports defense, aerospace, and medical applications
    • Operating temperature from –55°C to +125°C
    • Controlled baseline
    • Au bondwire and NiPdAu lead finish
    • Outgassing test performed per ASTM E595
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Product traceability
  • Wide common-mode voltage:
    • Operational voltage: −4V to +80V
    • Survival voltage: −20V to +85V
  • Excellent CMRR:
    • 160dB DC-CMRR
    • 85dB AC-CMRR at 50kHz
  • Accuracy:
    • Gain:
      • Gain error: ±0.15% (maximum)
      • Gain drift: ±10ppm/ °C (maximum)
    • Offset:
      • Offset voltage: ±30µV (typical)
      • Offset drift: ±0.05µV/ °C (typical)
  • Available gain:
    • INA951-SEPA1, : 20V/V
  • High bandwidth: 1.3MHz
  • Slew rate: 2.5V/µs
  • Quiescent current: 1.5mA
  • VID In Progress
  • Radiation - Total Ionizing Dose (TID):
    • TID performance assurance up to 30krad(Si)
    • Radiation Lot Acceptance Testing (RLAT) for every wafer lot up to 30krad(Si)
  • Radiation - Single-Event Effects (SEE):
    • Single Event Latch-Up (SEL) immune up to 43MeV-cm2 /mg at 125°C
    • Single Event Transient (SET) characterized up to LET = 47.5MeV-cm2 /mg
  • Supports defense, aerospace, and medical applications
    • Operating temperature from –55°C to +125°C
    • Controlled baseline
    • Au bondwire and NiPdAu lead finish
    • Outgassing test performed per ASTM E595
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Product traceability
  • Wide common-mode voltage:
    • Operational voltage: −4V to +80V
    • Survival voltage: −20V to +85V
  • Excellent CMRR:
    • 160dB DC-CMRR
    • 85dB AC-CMRR at 50kHz
  • Accuracy:
    • Gain:
      • Gain error: ±0.15% (maximum)
      • Gain drift: ±10ppm/ °C (maximum)
    • Offset:
      • Offset voltage: ±30µV (typical)
      • Offset drift: ±0.05µV/ °C (typical)
  • Available gain:
    • INA951-SEPA1, : 20V/V
  • High bandwidth: 1.3MHz
  • Slew rate: 2.5V/µs
  • Quiescent current: 1.5mA

The INA951-SEP is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4V to 80V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. The combination of a low offset voltage, small gain error and high DC CMRR enables highly accurate current measurement. The INA951-SEP is not only designed for DC current measurement, but also for high-speed applications (ex. Fast over-current protection) with a high bandwidth of 1.3MHz and an 85dB AC CMRR (at 50kHz).

The INA951-SEP operates from a single 2.7V to 10V supply, drawing 1.5mA of supply current. The INA951-SEP is available with a gain option of 20V/V.

The INA951-SEP is specified over an operating temperature range of −40°C to +125°C and is offered in a space-saving SOT-23 package.

The INA951-SEP is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4V to 80V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. The combination of a low offset voltage, small gain error and high DC CMRR enables highly accurate current measurement. The INA951-SEP is not only designed for DC current measurement, but also for high-speed applications (ex. Fast over-current protection) with a high bandwidth of 1.3MHz and an 85dB AC CMRR (at 50kHz).

The INA951-SEP operates from a single 2.7V to 10V supply, drawing 1.5mA of supply current. The INA951-SEP is available with a gain option of 20V/V.

The INA951-SEP is specified over an operating temperature range of −40°C to +125°C and is offered in a space-saving SOT-23 package.
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* Data sheet INA951-SEP –4V to 80V, 1.3MHz, Current Sense Amplifier datasheet PDF | HTML 13 Feb 2026

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