80V, 1.3MHz, Zero-Drift, Voltage-Output, Current Monitor

The RTQ6058 family is a high-precision current sense amplifier family widely used in most current-reporting systems and current-sensing circuits for precision current measurement and system optimization. These devices can sense a low voltage drop across the shunt resistor over a wide common-mode voltage range from 3V to 80V. They feature extremely low input offset, offset drift, gain error, and gain drift, all achieved through a zero-drift architecture. Five fixed gain options - 20, 50, 100, 200, and 500V/V - are available to accommodate different current scaling applications. The RTQ6058 family is designed for both DC current measurement and high-speed transient applications, such as fast overcurrent protection, with a high bandwidth of 1.3MHz and a 65dB AC CMRR at 50kHz.These devices operate from a single power supply ranging from 2.7V to 20V and draw 1.2mA of supply current. The RTQ6058 is available in an SOT-23-5 package with two pinout variants.The recommended ambient temperature range is -40°C to 125°C.