Product details


Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Total supply voltage (Max) (+5V=5, +/-5V=10) 16 Output current (Typ) (mA) 400 GBW (Typ) (MHz) 2 Slew rate (Typ) (V/us) 3.4 Vos (offset voltage @ 25 C) (Max) (mV) 7 Offset drift (Typ) (uV/C) 20 Iq per channel (Typ) (mA) 7.5 Features Adj Current Limit Rating Automotive Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable Input bias current (Max) (pA) 15 CMRR (Typ) (dB) 100 Rail-to-rail Out Architecture Bipolar open-in-new Find other Power op amps

Package | Pins | Size

HTSSOP (PWP) 14 32 mm² 5 x 6.4 open-in-new Find other Power op amps


  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Low offset voltage: 1 mV (typical)
  • High output current drive: 400 mA, continuous (per channel)
    • Replaces discrete op amps and transistors
  • Wide supply range for both supplies (up to 16 V)
  • Overtemperature shutdown
  • Current limit
  • Shutdown pin for low IQ applications
  • Stable with large capacitive loads
  • 2-MHz gain bandwidth with 3.4-V/µs slew rate
  • Internal RF/EMI filter
  • Package: 14-pin HTSSOP (PWP)

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The ALM2402F-Q1 is a dual-power op amp with features and performance that make this device preferable for resolver-based automotive applications. The high gain bandwidth and slew rate of the device, along with a continuous high-output current-drive capability, make this device an excellent choice to provide a low distortion and differential high amplitude excitation required for modern resolvers. Current limiting and overtemperature detection enhance overall system robustness when driving analog signals over wires that are susceptible to faults.

The ALM2402F-Q1 rail-to-rail output, enabled by the low Rds(on) PMOS and NMOS transistors, keeps the power dissipation low. The small HTSSOP package with thermal pad and low RθJA allows users to deliver high currents to loads while minimizing board space. This minimized board space is one of the key advantages offered by the ALM2402F-Q1 when used in modern hybrid and electric vehicles.

The ALM2402F-Q1 maximum output voltage is determined using the Maximum Output Voltage vs Frequency plot at the bottom of this page.


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Technical documentation

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Type Title Date
* Datasheet ALM2402F-Q1 Automotive, Dual Operational Amplifier With High Current Output for Resolver Excitation datasheet (Rev. A) Sep. 10, 2019
Application note Overvoltage Protection of Resolver-Based Circuits Nov. 19, 2020
Functional safety information ALM2402F-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution Jul. 02, 2020
Technical articles Improve efficiency in your HEV/EV resolver Nov. 27, 2019
User guide ALM2402F-Q1 Evaluation Module User's Guide Sep. 06, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide
The ALM2402F-Q1 is an automotive grade, dual high-voltage, high current operational amplifier (op amp) with protection features from Texas Instruments. This EVM is designed to provide access to the features and measure the performance of the ALM21402F-Q1. 
  • This EVM is designed to provide access to the features of the ALM2402F-Q1 and measure the performance of the ALM2402F-Q1
  • The ALM2402FQ1 EVM has by default both amplifiers configured in the inverting configuration with a gain of -2.5V/V

Design tools & simulation

SBOMB15.ZIP (9 KB) - TINA-TI Spice Model
SBOMB16.TSC (27 KB) - TINA-TI Reference Design
SBOMB20.ZIP (149 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

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HTSSOP (PWP) 14 View options

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