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Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT TSOT23-8
- Series：Zero-Drift
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：0.3V/µs
- Gain Bandwidth Product：27 kHz
- Current - Input Bias：500 pA
- Voltage - Input Offset：3 µV
- Current - Supply：48µA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：1.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- -3db Bandwidth：-
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Overview
The INA190A5IDDFR is a bidirectional current sense amplifier from Texas Instruments, housed in an SOT-23-8 package. It operates with a supply voltage between 1.7 V and 5.5 V and supports common-mode voltages from -200 mV to 40 V. The device features a fixed gain of 500 V/V, a bandwidth of 27 kHz, and a maximum input bias current of 500 pA. It maintains a typical CMRR of 150 dB and a gain error of 0.08%. Operating temperatures range from -40°C to +125°C.
Feature Summary
- Bidirectional sensing capability for both high-side and low-side configurations
- Ultra-low input bias current for minimal measurement impact
- High precision with low offset voltage and high common-mode rejection
Applications
- Battery management systems
- Load switch control circuits
- Overcurrent protection designs
Procurement Notes
Verify the specific suffix IDDFR confirms the SOT-23-8 surface-mount package and tape-and-reel shipping format. Confirm the A5 grade designation matches the required 500 V/V gain specification. Ensure compatibility with the target operating temperature range of -40°C to +125°C before finalizing procurement orders.
Selection Notes
Select this component when a fixed high gain of 500 V/V is required for small differential signals. The SOT-23-8 package offers a compact footprint suitable for space-constrained PCB layouts. Verify that the 40 V common-mode voltage range aligns with the system's bus voltage requirements.
Part Context
This part belongs to the INA190 family of ultra-precise current sense amplifiers. It shares core architectural features with other variants like the INA190A2 and INA190A3 but differs in its specific gain setting and package configuration. The family is designed for applications requiring high accuracy and low power consumption.
Replacement Considerations
The INA190A5IDCKT serves as a pin-compatible alternative in a smaller SC-70-6 package. Other family members such as the INA190A2 or INA190A3 offer different gain values (50 V/V or 100 V/V) and may require schematic adjustments.
