TEXAS INSTRUMENTS Current Sense Amplifier, High/Low Side, 80µA, SOT-23-5

The TEXAS INSTRUMENTS Current Sense Amplifier is a precision, high-performance component designed for accurate current monitoring in a wide array of electronic applications. It operates effectively on both the high side and low side of the load, providing exceptional versatility for circuit designers. With a broad common-mode voltage range from –0.2V to +26V, it can handle significant voltage swings, making it suitable for automotive, industrial, and power management systems where robust performance is required.

Featuring a high fixed gain of 50 V/V, the amplifier delivers a strong, linear output signal proportional to the sensed current. This is complemented by an impressive common-mode rejection ratio (CMRR) of 100dB, which minimises errors from noise and ensures measurement accuracy even in electrically noisy environments. The device boasts a bandwidth of 210kHz and a fast output slew rate of 2 V/µs, enabling it to track dynamic current changes with precision.

Key Performance Specifications

• Wide Operating Range: Functions reliably from -40°C to +125°C, ideal for harsh environmental conditions.
• Low Power Consumption: Features a maximum quiescent current of just 260µA, conserving energy in battery-powered or efficiency-critical designs.
• High Accuracy: An exceptionally low input offset voltage of 100µV and a specified input bias current of 80µA contribute to precise current sensing with minimal error.
• Compact Form Factor: Housed in a space-saving, surface-mount SOT-23 package with 5 pins, it is perfect for modern, high-density PCB layouts.

Engineered for reliability and consistent performance, this single-amplifier IC supports a supply voltage from 2.7V to 5.5V, accommodating standard logic levels. Its combination of wide voltage range, high accuracy, and compact size makes it an excellent choice for enhancing system monitoring and protection circuits.