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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：35 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 INA190A3IDDFT is a bidirectional current sense amplifier from Texas Instruments, housed in an 8-SOT-23-THIN package. It features a fixed gain of 100 V/V and supports a common-mode voltage range from -200 mV to 40 V. The device operates on a supply voltage between 1.7 V and 5.5 V with a typical quiescent current of 65 uA. Key electrical specifications include a 35 kHz bandwidth, 150 dB CMRR, 500 pA input bias current, and 3 uV input offset voltage. 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-precise performance with picoamp-level input bias current
- Integrated enable pin for power management control
Applications
- Battery management systems
- Industrial process controls
- Power supply monitoring
Procurement Notes
Verify the specific suffix 'D' for SOT-23-THIN packaging and 'F' for tape-and-reel delivery configuration. Confirm the 'A3' designation corresponds to the 100 V/V gain setting. Ensure compatibility with the -40°C to +125°C operating temperature range required by the application environment before finalizing procurement.
Selection Notes
Select this component when a fixed 100 V/V gain is required for precise current measurement. The wide common-mode voltage range up to 40 V allows flexibility in high-side or low-side placement. The low 65 uA quiescent current makes it suitable for battery-powered applications where energy efficiency is critical.
Part Context
This part belongs to the INA190 family of ultraprecise current sense amplifiers. The family shares core architectural features such as zero-drift technology and high CMRR. Variations within the series differ primarily in gain settings (e.g., A2, A3, A4) and physical package options like SC-70-6 or UQFN-10.
Replacement Considerations
Check datasheets for alternative gain variants within the INA190 series if different amplification factors are needed. Verify pinout compatibility for other packages like SC-70-6 if board space constraints change.
