OPA862IDR

Overview

The OPA862IDR is a high-speed, low-noise operational amplifier manufactured by Texas Instruments in an SOIC-8 surface-mount package. It features a gain-bandwidth product of 400 MHz and a slew rate of 140 V/us. The device operates on a single supply voltage ranging from 3 V to 12.6 V with a quiescent current of 3.1 mA per channel. Key electrical specifications include an input offset voltage of 50 uV, input bias current of 3.1 uA, and a common-mode rejection ratio of 120 dB. Each channel provides an output current capability of 60 mA.

Feature Summary

• Converts single-ended signals to differential outputs for analog-to-digital converter interfacing
• Provides high input impedance to minimize signal loading effects
• Delivers low noise performance suitable for precision signal chains

Applications

• Single-ended to differential ADC drivers
• High-speed data acquisition systems
• Video signal processing circuits

Procurement Notes

Verify the specific suffix ID against the manufacturer datasheet to confirm the SOIC-8 package type and tape-and-reel shipping configuration. Ensure the operating environment remains within the specified temperature range of -40 C to +125 C. Confirm RoHS compliance status through official documentation before integration into regulated assemblies.

Selection Notes

Select this component when driving high-resolution ADCs from single-ended sources requires minimal loading. The high input impedance preserves signal integrity compared to standard op amps. The differential output simplifies layout for noise-sensitive applications. Verify that the required bandwidth exceeds 400 MHz and the output drive meets 60 mA demands.

Part Context

This device belongs to the OPA862 family of high-speed amplifiers designed specifically for video and communication applications. It addresses the need for efficient interface between single-ended sources and differential ADC inputs without requiring external transformers or baluns. The family emphasizes low noise and high linearity for accurate signal conversion.

Replacement Considerations

Consult the manufacturer datasheet for direct pin-compatible alternatives within the same series. Cross-reference specifications such as gain-bandwidth product and supply voltage limits to ensure functional equivalence in existing designs.