OPA3875IDBQ

Analog Switches - Special Purpose Overview

The OPA3875IDBQ is a precision operational amplifier manufactured by Texas Instruments, belonging to the OPAx387 family of ultra-high precision, zero-drift amplifiers. It features a single channel with a gain-bandwidth product of 5.7 MHz and a slew rate of 2.8 V/us. The device exhibits an input offset voltage of 2.5 uV and an input bias current of 135 pA. Operating within a supply voltage range of 1.7 V to 5.5 V, it provides a common-mode rejection ratio of 150 dB and an input voltage noise density of 8.5 nV/sqrt Hz. The component is housed in a SOT-23-5 package and supports operation from -40 C to +125 C.

Analog Switches - Special Purpose Feature Summary

• Ultra-high precision zero-drift architecture minimizes offset voltage drift over temperature and time
• Low input bias current design reduces loading effects on high-impedance signal sources
• Rail-to-rail output capability maximizes dynamic range in low-voltage applications

Analog Switches - Special Purpose Applications

• Precision sensor signal conditioning for high-impedance transducers
• Medical instrumentation requiring stable DC amplification
• Data acquisition systems demanding low noise and high accuracy

Analog Switches - Special Purpose Procurement Notes

Verify the exact part marking and datasheet revision against the manufacturer's official documentation before procurement. Ensure the SOT-23-5 package matches the target PCB footprint. Confirm that the operating temperature range meets the specific environmental requirements of the end application. Cross-reference the ordering information with authorized distributors to avoid counterfeit components.

Analog Switches - Special Purpose Selection Notes

Select this component when ultra-low offset drift and minimal input bias current are critical system requirements. The 5.7 MHz bandwidth suits moderate-speed precision applications rather than high-frequency signal processing. Consider the SOT-23-5 package constraints for thermal management and board space. Compare performance metrics against other zero-drift amplifiers if higher bandwidth or lower noise is required.

Analog Switches - Special Purpose Part Context

The OPA387IDBQ is part of the OPAx387 series, which includes dual-channel variants like the OPA2387. This family shares the same core zero-drift technology and electrical characteristics but differs in channel count and package options. The 'DBQ' suffix typically indicates a specific tape-and-reel packaging configuration for surface-mount assembly.

Analog Switches - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include the OPA387IDR. For dual-channel applications, the OPA2387 offers identical performance characteristics. Verify that any substitute maintains the same SOT-23-5 package and electrical specifications to ensure circuit compatibility.