INA185A1IDRLT

Overview

The INA185A1IDRLT is a precision, high-speed current sense amplifier manufactured by Texas Instruments. It features an ultra-small SOT-563 package and supports bidirectional current sensing with low-side capability. The device operates within a supply voltage range of 2.7 V to 5.5 V and maintains functionality across an extended temperature range of -40°C to 125°C. Key electrical specifications include a maximum gain error of 0.2%, a minimum common-mode rejection ratio (CMRR) of 96 dB, and a maximum input offset voltage of 55 µV. The amplifier offers fixed gains of 100, 20, 200, or 50 V/V, with corresponding bandwidths of 350, 210, 150, or 105 kHz. Maximum quiescent current is 0.3 mA.

Feature Summary

• Ultra-small SOT-563 packaging for space-constrained designs
• Bidirectional current sensing capability
• Low-side current sensing support

Applications

• Portable equipment power management
• Battery-powered systems
• Industrial process control

Procurement Notes

Verify the specific suffix 'RLT' against official Texas Instruments documentation to confirm reel tape specifications and quantity per reel. Ensure the order matches the exact package type and gain variant required for the application circuit design.

Selection Notes

Select this component when a compact footprint is critical alongside high-speed performance. The fixed-gain options eliminate external resistor requirements, simplifying layout. Verify that the 26 V common-mode voltage range meets the system's rail requirements.

Part Context

This part belongs to the INA185 family of current sense amplifiers from Texas Instruments. The family is characterized by high precision and speed in small packages. The 'A1' designation indicates a specific gain configuration within the series.

Replacement Considerations

Consult official substitution guides for compatible parts within the INA185 family or similar TI current sense amplifiers. Verify pinout compatibility and electrical parameter equivalence before replacing.