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Product Detailed Parameters
- Description：IC CURRENT SENSE 2 CIRCUIT 8WSON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：2
- Output Type：Rail-to-Rail
- Slew Rate：2V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：80 µA
- Voltage - Input Offset：100 µV
- Current - Supply：355µA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-WSON (2x2)
- -3db Bandwidth：105 kHz
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Overview
The INA2180A4IDSGR is a dual-channel current-sense amplifier manufactured by Texas Instruments. It features a fixed gain of 200 V/V and operates with a supply voltage range of 2.7 V to 5.5 V. The device supports a common-mode input voltage from –0.2 V to +26 V, independent of the supply voltage. Key electrical specifications include a maximum offset voltage of ±500 µV at 12 V common-mode, a bandwidth of 105 kHz, and a quiescent current of 500 µA maximum. It is housed in an 8-pin WSON package.
Feature Summary
- Dual-channel architecture for simultaneous high-side or low-side current monitoring
- Integrated matched resistor network ensures high accuracy and low temperature drift
- Operates on supply voltages significantly lower than the monitored bus voltage
- Rail-to-rail output capability for direct interfacing with ADCs
Applications
- Motor control systems
- Battery monitoring circuits
- Power management units
- Overcurrent detection protection
- Solar inverters
Procurement Notes
Verify the specific suffix IDSGR corresponds to the 8-pin WSON package variant when sourcing. Confirm that the A4 designation matches the required 200 V/V gain for the design. Ensure the component meets the extended operating temperature range requirements of –40°C to +125°C for the intended environment.
Selection Notes
Select this device when a dual-channel solution is required for cost-optimized applications. The 200 V/V gain is suitable for sensing small voltage drops across shunt resistors. Consider the 105 kHz bandwidth for applications requiring moderate response speeds. Verify that the 26 V common-mode range aligns with the system's bus voltage limits.
Part Context
This component belongs to the INAx180 family of current-sense amplifiers, which includes single-channel (INA180) and quad-channel (INA4180) variants. All devices share similar architectural features but differ in channel count and package options. The INA2180 specifically provides two independent channels within a compact footprint.
Replacement Considerations
Compatible alternatives within the same family include the INA2180A4IDGKR (VSSOP package) and the INA2180A4IDGKT (VSSOP package). These parts offer identical electrical characteristics but utilize different physical packages.
