ZXCT211QADW-7

Overview

The ZXCT211QADW-7 is a precision current shunt monitor from the ZXCT21xQ family, manufactured by Diodes Incorporated. It features a 'zero-drift' topology with a gain of 500V/V and an input offset voltage maximum of ±35μV. The device supports a common-mode sense range from -0.3V to 26V, enabling both high-side and low-side measurements regardless of supply voltage. It operates within a supply voltage range of 2.7V to 26V and functions across a temperature range of -40°C to +125°C. Packaged in SOT-363-6, it includes a reference pin for bi-directional current measurement.

Feature Summary

• Zero-drift topology ensures high precision with minimal offset voltage drift
• Wide common-mode sense range allows flexible high-side or low-side placement
• Bi-directional measurement capability via dedicated reference pin
• Automotive-grade qualification within the ZXCT21xQ series

Applications

• High-side and low-side current sensing in automotive systems
• Battery management system monitoring
• Industrial power supply regulation
• Motor control current feedback

Procurement Notes

Verify the specific suffix 'A' indicates the required input offset and gain linearity variant, as the C-type offers higher precision. Confirm the package is SOT-363-6 and check RoHS compliance status. Ensure the application requires the 500V/V gain option. Validate that the operating temperature range meets the environmental requirements of the target system.

Selection Notes

Select this component when a 500V/V gain is necessary for precise current monitoring. The zero-drift architecture is suitable for applications requiring stable performance over temperature variations. Consider the A-variant specifications for offset and linearity if the C-type precision is not strictly required. Ensure the common-mode voltage stays within the -0.3V to 26V range for accurate operation.

Part Context

This part belongs to the ZXCT21xQ family of precision current monitors. The family includes variants with gains of 50V/V, 75V/V, 100V/V, 200V/V, 500V/V, and 1kV/V. The Q-series denotes automotive-grade qualification. Other members include ZXCT210Q, ZXCT212Q, ZXCT213Q, ZXCT214Q, and ZXCT215Q, offering different gain options within the same package and feature set.

Replacement Considerations

ZXCT211CDW-7 is a non-automotive grade equivalent with similar electrical characteristics but lacks automotive qualification. ZXCT211QADW-7 is the exact part number. ZXCT211QCDW-7 offers higher precision (C-type) with lower offset voltage. Verify if the automotive grade is mandatory for the application before substituting.