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ALM2402F-Q1

ACTIVE

High output current operational amplifier for automotive, dual channel

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Data sheet

ALM2402F-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 16 Iout (typ) (A) 0.4 GBW (typ) (MHz) 2.1 Slew rate (typ) (V/µs) 3.4 Vos (offset voltage at 25°C) (max) (mV) 7 Offset drift (typ) (µV/°C) 65 Iq per channel (typ) (mA) 4 Features Adj Current Limit, EMI Hardened, High Cload Drive, Shutdown 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) 97 Rail-to-rail Out Architecture Bipolar
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 16 Iout (typ) (A) 0.4 GBW (typ) (MHz) 2.1 Slew rate (typ) (V/µs) 3.4 Vos (offset voltage at 25°C) (max) (mV) 7 Offset drift (typ) (µV/°C) 65 Iq per channel (typ) (mA) 4 Features Adj Current Limit, EMI Hardened, High Cload Drive, Shutdown 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) 97 Rail-to-rail Out Architecture Bipolar
HTSSOP (PWP) 14 32 mm² (5 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional-Safety Capable
  • 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)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional-Safety Capable
  • 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)

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.

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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* Data sheet ALM2402F-Q1 Automotive, Dual Operational Amplifier With High Current Output for Resolver Excitation datasheet (Rev. B) PDF | HTML Oct 12, 2021
Application note Parallel Amplifiers for Higher Output Power: An Improved Howland Pump Approach PDF | HTML Jul 11, 2021
Application note Overvoltage Protection of Resolver-Based Circuits PDF | HTML Nov 19, 2020
Functional safety information ALM2402F-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution Jul 2, 2020
Technical article Improve efficiency in your HEV/EV resolver PDF | HTML Nov 27, 2019

Design & development

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Evaluation board

ALM2402FQ1EVM — ALM2402F-Q1 dual operational amplifier with high current output and slew rate evaluation module

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. 
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Simulation model

ALM2402F-Q1 PSpice Model (Rev. C)

SBOMB20C.ZIP (27 KB) - PSpice model
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Simulation model

ALM2402F-Q1 TINA-TI Reference Design (Rev. B)

SBOMB16B (368 KB) - TINA-TI reference design
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Simulation model

ALM2402FQ TINA-TI SPICE Model (Rev. B)

SBOMB15B.ZIP (11 KB) - TINA-TI Spice model
Supported products & hardware
Reference design

TIDM-02009 — ASIL D safety concept-assessed high-speed traction, bi-directional DC/DC conversion reference design

This reference design demonstrates control of HEV/EV traction inverter and bi-directional DC-DC converter by a single TMS320F28388D real-time C2000™ MCU. The traction control uses a software-based resolver to digital converter (RDC) driving the motor to a high speed up to 20,000 RPM. The (...)

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HTSSOP (PWP) 14 Ultra Librarian
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