OPA875IDG4

Analog Switches - Special Purpose Overview

The OPA875IDG4 is a single-channel, high-speed video multiplexer manufactured by Texas Instruments. It features a 2:1 input selection architecture housed in a 14-pin SOIC package. The device supports a supply voltage range of 4 V to 12.6 V with a maximum operating temperature of +85°C and a minimum of -40°C. Key electrical specifications include a gain bandwidth product of 250 MHz and a slew rate of 240 V/µs. It provides a voltage gain of 66 dB, a common-mode rejection ratio (CMRR) of 85 dB, and a power supply rejection ratio (PSRR) of 68 dB. The input bias current is 26 µA, while the input offset voltage is 250 µV. Each channel delivers an output current of 85 mA with an input voltage noise density of 2.5 nV/√Hz.

Analog Switches - Special Purpose Feature Summary

• Integrates a high-speed 2:1 video multiplexer function within a single operational amplifier channel.
• Provides low-noise performance suitable for precision signal routing applications.
• Supports wide supply voltage operation for flexible system integration.

Analog Switches - Special Purpose Applications

• High-speed video signal switching and routing
• Test and measurement equipment requiring fast signal path selection
• Medical imaging systems utilizing video data acquisition

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer verification. Confirm the specific suffix IDG4 corresponds to the SOIC-14 package variant. Check for RoHS compliance documentation and humidity sensitivity levels prior to assembly. Ensure the source provides valid traceability records to mitigate counterfeiting risks during procurement.

Analog Switches - Special Purpose Selection Notes

Select this component when a combined multiplexing and amplification function is required in a compact form factor. Evaluate the 250 MHz bandwidth against system frequency requirements. Consider the 85 mA output drive capability for load matching. Compare thermal dissipation characteristics within the SOIC-14 package against alternative packages if higher power handling is needed.

Analog Switches - Special Purpose Part Context

The OPA875 belongs to Texas Instruments' portfolio of high-speed video processing components. The IDG4 suffix denotes the industrial temperature range and the specific SOIC-14 surface-mount packaging. This part integrates analog switching capabilities directly with the amplifier stage, reducing board space compared to discrete multiplexer and op-amp combinations.

Analog Switches - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical parameter overlaps with potential alternatives before implementation.