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INA133

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1.5-MHz, 450-µV offset, 0.95-mA power, precision difference amplifier

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Data sheet

INA133

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vs (min) (V) 4.5 Vs (max) (V) 36 CMRR (min) (dB) 80 Common-mode input low (min) (V) -27 Common-mode input high (max) (V) 27 Input offset (±) (max) (V) 0.00045 Iq (typ) (mA) 0.95 Slew rate (typ) (V/µs) 5 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1 Small-signal bandwidth (typ) (Hz) 1500000 Rating Catalog Operating temperature range (°C) -40 to 85 Gain drift (max) (ppm/°C) 1 Gain error (±) (max) (%) 0.05
Number of channels 1 Vs (min) (V) 4.5 Vs (max) (V) 36 CMRR (min) (dB) 80 Common-mode input low (min) (V) -27 Common-mode input high (max) (V) 27 Input offset (±) (max) (V) 0.00045 Iq (typ) (mA) 0.95 Slew rate (typ) (V/µs) 5 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1 Small-signal bandwidth (typ) (Hz) 1500000 Rating Catalog Operating temperature range (°C) -40 to 85 Gain drift (max) (ppm/°C) 1 Gain error (±) (max) (%) 0.05
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Single, dual versions
  • Low offset voltage: ±450µV (maximum)
  • Low offset voltage drift: ±5µV/°C (maximum)
  • Low gain error: 0.05% (maximum)
  • Wide bandwidth: 1.5MHz
  • High slew rate:
    • 5V/µs (CSO: SHE)
    • 20V/µs (CSO: RFB)
  • Fast settling time: 5.5µs to 0.01%
  • Low quiescent current: 950µA
  • Wide supply range: ±2.25V to ±18V
  • Single, dual versions
  • Low offset voltage: ±450µV (maximum)
  • Low offset voltage drift: ±5µV/°C (maximum)
  • Low gain error: 0.05% (maximum)
  • Wide bandwidth: 1.5MHz
  • High slew rate:
    • 5V/µs (CSO: SHE)
    • 20V/µs (CSO: RFB)
  • Fast settling time: 5.5µs to 0.01%
  • Low quiescent current: 950µA
  • Wide supply range: ±2.25V to ±18V

The INA133 and INA2133 are high slew rate, unity gain difference amplifiers made up of a precision operational amplifier with a precision resistor network. The on-chip resistors are laser trimmed for accurate gain and high common-mode rejection. Excellent tracking of resistors (TCR) maintains gain accuracy and common-mode rejection over temperature. The INAx133 operates over a wide supply range, ±2.25V to ±18V (+4.5V to +36V single supply), and that input common-mode voltage range extends beyond the positive and negative supply rails.

The differential amplifier is the foundation of many commonly used circuits. The INAx133 provides this precision circuit function for cost-optimized designs.

The single INA133 version is available in the SOIC-8 surface mount package. The dual INA2133 version is available in SOIC-14 package. Both are specified for operation over the industrial temperature range −40°C to +85°C.

The INA133 and INA2133 are high slew rate, unity gain difference amplifiers made up of a precision operational amplifier with a precision resistor network. The on-chip resistors are laser trimmed for accurate gain and high common-mode rejection. Excellent tracking of resistors (TCR) maintains gain accuracy and common-mode rejection over temperature. The INAx133 operates over a wide supply range, ±2.25V to ±18V (+4.5V to +36V single supply), and that input common-mode voltage range extends beyond the positive and negative supply rails.

The differential amplifier is the foundation of many commonly used circuits. The INAx133 provides this precision circuit function for cost-optimized designs.

The single INA133 version is available in the SOIC-8 surface mount package. The dual INA2133 version is available in SOIC-14 package. Both are specified for operation over the industrial temperature range −40°C to +85°C.
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* Data sheet INAx133 High-Speed, Precision Difference Amplifiers datasheet (Rev. B) PDF | HTML 21 Jan 2026
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017

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DIFFAMP-EVM — Universal Difference Amplifier Evaluation Module

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DIP-ADAPTER-EVM — DIP adapter evaluation module

Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)

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Simulation model

INA133 TINA-TI Reference Design (Rev. B)

SBOC148B.TSC (101 KB) - TINA-TI Reference Design
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INA133 TINA-TI Spice Model (Rev. A)

SBOM217A.ZIP (4 KB) - TINA-TI Spice Model
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Simulation model

INA133 and INA2133 PSpice Model (Rev. B)

SBOC052B.ZIP (23 KB) - PSpice Model
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ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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