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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：37 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 INA190A2IDDFT is a bidirectional current sense amplifier from Texas Instruments, housed in an 8-SOT-23-THIN package. It operates with a supply voltage range of 1.7 V to 5.5 V and supports common-mode voltages from -200 mV to 40 V. The device features a fixed gain of 50 V/V, a bandwidth of 37 kHz, and a maximum gain error of 0.06%. Key electrical specifications include a quiescent current of 65 uA, input bias current of 500 pA, and input offset voltage of 3 uV. It functions within a temperature range of -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 disturbance
- High common-mode rejection ratio for noise immunity
- Fixed precision gain options for simplified circuit design
Applications
- Battery management systems
- Load switch control circuits
- Overcurrent protection designs
- DC/DC converter monitoring
Procurement Notes
Verify the specific suffix IDDFT corresponds to the SOT-23-8 thin package and tape-and-reel delivery format. Confirm the A2 grade indicates the 50 V/V gain variant. Check manufacturer lifecycle status as end-of-life notifications may impact long-term availability. Ensure RoHS compliance documentation matches regional regulatory requirements.
Selection Notes
Select this component when bidirectional current monitoring is required with a 50 V/V gain factor. The SOT-23-8 thin package suits space-constrained PCB layouts. Verify that the 40 V common-mode voltage range aligns with the system's bus voltage. Consider the 37 kHz bandwidth for applications requiring moderate response speeds without excessive power consumption.
Part Context
This part belongs to the INA190 family of ultraprecise current sense amplifiers. The family shares core architectural features including picoampere-level input bias currents and high CMRR. Variants differ primarily by gain setting (A1, A2, A3, etc.) and package type (SOT-23, UQFN, SC-70). The A2 designation specifically denotes the 50 V/V gain configuration.
