OPA875IDGKR

Analog Switches - Special Purpose Overview

The OPA875IDGKR is a single-channel, high-speed video multiplexer manufactured by Texas Instruments. It functions as a 2:1 analog switch designed for signal routing in video and data acquisition systems. The device operates within a supply voltage range of 4.5 V to 36 V and supports rail-to-rail input and output capabilities. Key electrical specifications include a gain-bandwidth product of 550 kHz, a slew rate of 200 mV/µs, and an input offset voltage of 10 µV. It features low input bias current of 350 pA and input voltage noise density of 20 nV/√Hz. The component is housed in an 8-pin VSSOP package and is rated for operation between -40°C and +125°C.

Analog Switches - Special Purpose Feature Summary

• High-speed 2:1 video multiplexing capability for efficient signal routing
• Rail-to-rail input and output performance across the full supply range
• Zero-drift architecture ensuring minimal offset voltage and drift over temperature

Analog Switches - Special Purpose Applications

• Video signal switching and routing in surveillance or broadcast equipment
• Data acquisition systems requiring precise analog signal selection
• Medical instrumentation involving multi-channel sensor inputs

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer part number against official Texas Instruments documentation to confirm the specific suffix indicates the VSSOP-8 package and tape-and-reel delivery format. Ensure compatibility with required operating temperatures and supply voltages before integration into final designs.

Analog Switches - Special Purpose Selection Notes

Select this component when a single-channel, high-speed analog switch with precision DC characteristics is required. Compare against other multiplexers if multiple channels are needed, noting that this model provides only one switched path. Consider the trade-off between the 550 kHz bandwidth and the ultra-low offset voltage for your specific application frequency response needs.

Analog Switches - Special Purpose Part Context

The OPA875IDGKR belongs to the OPA875 family of high-speed video multiplexers from Texas Instruments. It integrates precision amplifier technology with analog switching functionality, distinguishing it from standard mechanical or basic solid-state switches. This integration allows for buffered output signals, reducing loading effects on source circuits during multiplexing operations.

Analog Switches - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers for the OPA875IDGKR were not identified in the provided reference material. Designers should consult Texas Instruments application notes or distributor cross-reference tools for potential alternatives based on specific pinout and electrical parameter requirements.