Automotive, dual-channel, high-voltage, power op amp with low distortion for resolver applications
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional-safety capable
- High output current drive: 650 mA, peak (per channel)
- Replaces discrete op amps and transistors
- Wide supply range for both supplies (up to 24 V)
- Overtemperature shutdown
- Current limit
- Shutdown pin for low IQ applications
- 21-MHz gain bandwidth with 50-V/µs slew rate
- Package: 14-pin HTSSOP (PWP)
All trademarks are the property of their respective owners.
Description
The ALM2403-Q1 is a dual-power op amp with features and performance that make this device preferable for resolver-based 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 the low distortion and differential high-amplitude excitation required for exciting the resolver primary coil. Current limiting and overtemperature detection enhance overall system robustness, especially when driving analog signals over wires that are susceptible to faults.
The small HTSSOP package with thermal pad and low RθJA allows high currents to be delivered to loads while minimizing board space. The higher gain bandwidth of the ALM2403-Q1 allows the device to be configured as a filter stage while still providing high output drive, thus significantly reducing the total solution size of a resolver drive signal chain. This reduced solution size is a key advantage offered by the ALM2403-Q1 when used in automotive and industrial applications.
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | ALM2403-Q1 Automotive, Low-Distortion, Dual-Channel Operational Amplifier With Integrated Protection for Resolver Drive datasheet | Nov. 30, 2020 |
Application note | Applying the ALM2403-Q1 Single-Chip Resolver Solution to Reduce System Costs | Dec. 22, 2020 | |
Functional safety information | ALM2403-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | Nov. 30, 2020 | |
Application note | Overvoltage Protection of Resolver-Based Circuits | Nov. 19, 2020 | |
More literature | ALM2403Q1EVM EU Declaration of Conformity (DoC) | Jun. 19, 2020 | |
User guide | ALM2403-Q1 Evaluation Module User's Guide | Feb. 18, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- The ALM2403Q1EVM has by default both amplifiers configured in the inverting configuration with a gain of -2.5-V/V
Design tools & simulation
Features
- 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
- (...)
Features
- 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
Package | Pins | Download |
---|---|---|
HTSSOP (PWP) | 14 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.