AP4310AMTR-G1

Overview

The AP4310AMTR-G1 is a monolithic dual operational amplifier and precision shunt voltage reference integrated circuit manufactured by Diodes Incorporated. It integrates two general-purpose op amps and a fixed 2.5V reference source within an SO-8 surface-mount package. The device operates on a supply voltage range of 3V to 36V with an ambient temperature rating from -40°C to +105°C. Each op amp draws 75µA at 5V, features a unity gain bandwidth of 1MHz, and offers a maximum input offset voltage of 0.5mV. The voltage reference section provides a tolerance of ±0.4% and supports sink currents between 0.05mA and 80mA.

Feature Summary

• Integrates two independent operational amplifiers and a precision 2.5V shunt voltage reference in a single monolithic IC
• Features low power consumption with 75µA supply current per op amp at 5V operation
• Provides high precision control with a 0.5mV maximum input offset voltage and 1MHz unity gain bandwidth
• Includes a stable voltage reference with ±0.4% initial accuracy and wide operating voltage range

Applications

• Switching battery chargers
• Switching power supplies

Procurement Notes

Verify the specific suffix 'G1' confirms RoHS compliance and halogen-free status as defined by the manufacturer. Confirm the 'TR' designation indicates tape and reel packaging for automated assembly. Ensure the 'M' variant matches the required ±0.4% reference voltage tolerance specification rather than standard grades. Cross-reference the SO-8 package outline dimensions against PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a combined voltage regulation and current control solution is required for switching converters. The internal connection of Op Amp 1's non-inverting input to the reference output simplifies constant voltage loop design. Choose this part over discrete solutions to reduce system complexity and bill of materials cost. Verify that the 3V to 36V supply range aligns with the target application's voltage rails.

Part Context

This component belongs to the AP4310 product line designed specifically for power converter applications. It consolidates functions typically requiring separate components into one package. The integration allows designers to implement precise control loops for both voltage and current modes efficiently. The SO-8 package facilitates compact printed circuit board layouts for modern electronic devices.

Replacement Considerations

Datasheet documentation does not list confirmed substitute part numbers.