AEC-Q100, -4-V to 110-V, 1-MHz, high-precision current-sense amplifier
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Wide common-mode voltage:
- Operational voltage: −4 V to +110 V
- Survival voltage: −20 V to +116 V
- Excellent CMRR
- 160-dB dc CMRR
- 85-dB ac CMRR at 50 kHz
- Accuracy
- Gain
- Gain error: 0.2% (maximum)
- Gain drift: 10 ppm/°C (maximum)
- Offset
- Offset voltage: ±200 µV (maximum)
- Offset drift: ±1 µV/°C (maximum)
- Gain
- Available gains:
- INA293A1-Q1, INA293B1-Q1: 20 V/V
- INA293A2-Q1, INA293B2-Q1: 50 V/V
- INA293A3-Q1, INA293B3-Q1: 100 V/V
- INA293A4-Q1, INA293B4-Q1: 200 V/V
- INA293A5-Q1, INA293B5-Q1: 500 V/V
- Bandwidth: 1 MHz
- Slew rate: 3 V/µs
- Quiescent current: 1.5 mA
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Description
The INA293-Q1 is a versatile, automotive, high-voltage, unidirectional, voltage-output, current-sense amplifier that senses voltage drops across external sense (shunt) resistors over a wide common-mode voltage range from –4 V to 110 V. The negative common-mode voltage allows the device to operate below ground, thus accommodating the precise measurement of a recirculating current in typical
h-bridge applications. The INA293-Q1 amplifier has a bandwidth of 1 MHz at gain of 20 V/V. The 1-MHz bandwidth in combination with a low offset of < 200 uV (max) provides fast settling response with accurate measurements in a large common-mode switching transients.
The INA293-Q1 operates from a single 2.7-V to 20-V supply, drawing 1.5 mA of supply current. The INA293-Q1 is available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address wide dynamic current-sensing applications.
The INA293-Q1 is specified over the operating temperature range of −40°C to +125°C, and is offered in a space-saving SOT-23 package.
Sample availability
Preproduction samples are available (PINA293AxQDBVRQ1). Request now
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
This is a small module with 10 completely independent boards that can be broken off by the user. Ten schematically identical boards for each of the five gain variation and two pinout variations of the INA293 with inputs up to 110V common mode and 5A (on board shunt) input capability. Each board (...)
Features
- Easy to test INA293 with differential voltage or shunt resistor.
- Pads and sockets allow quick and easy implementation of SMD filtering.
- Breakable panels lets customer experiment and test with all gain variants and two pin outs.
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
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOT-23 (DBV) | 5 | View options |
Ordering & quality
Support & training
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