BD14210G-LATR

Overview

The BD14210G-LATR is a single-channel current sense amplifier IC from ROHM Semiconductor, housed in an SSOP-6 package. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports a wide common-mode voltage range of -0.2 V to +26 V. The device features a typical gain of 20 V/V with a maximum gain accuracy of ±1%. Key electrical specifications include a typical operating current of 0.17 mA, a maximum input offset voltage of 3 mV, and a typical input bias current of 1 µA. It functions within an extended temperature range of -40°C to +125°C.

Feature Summary

• Supports wide common-mode voltage range including negative inputs
• High precision with low offset voltage and matched internal gain resistors
• Low power consumption suitable for battery-operated systems
• Integrated design reduces component count compared to discrete solutions

Applications

• Industrial equipment such as PLCs and inverters
• Wireless base stations and charging systems
• Home appliances like air purifiers and refrigerators
• 12V and 24V power supply current monitoring

Procurement Notes

Verify the complete part number including the suffix to ensure correct packaging configuration. Confirm that the application environment stays within the specified -40°C to +125°C operating temperature range. Ensure the common-mode voltage does not exceed the +26 V maximum limit. Check RoHS compliance requirements against specific project standards before finalizing procurement orders.

Selection Notes

Select this component when high accuracy is required in space-constrained designs. The integrated nature eliminates external resistor matching errors found in discrete op-amp circuits. Consider the 20 V/V gain for applications requiring significant signal amplification from small shunt voltages. Evaluate the low input bias current to minimize voltage drop errors across the sensing resistor.

Part Context

This device belongs to the BD1421x-LA series, which includes variants like the BD14211G-LA. The series is designed for long-term supply in industrial markets. It serves as a compact alternative to traditional operational amplifier and discrete resistor combinations, offering reduced board space and improved reliability through integrated precision components.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.