AD834SQ/883B

Overview

The AD834SQ/883B is a monolithic, laser-trimmed four-quadrant analog multiplier designed for high-frequency applications. It features a transconductance bandwidth exceeding 500 MHz from differential voltage inputs and operates with supply voltages ranging from ±4 V to ±9 V. The device provides differential ±1 V full-scale inputs and differential ±4 mA full-scale output current. Typical power consumption is 280 mW at ±5 V supplies. It is housed in an 8-lead CERDIP package and rated for the military temperature range of −55°C to +125°C.

Feature Summary

• Monolithic four-quadrant multiplication architecture with DC to >500 MHz operation
• Laser-trimmed transfer function ensuring low total full-scale error
• Open-collector differential current outputs requiring external conversion
• Military-grade reliability with extended temperature range

Applications

• High speed real time computation
• Wideband modulation and gain control
• Signal correlation and RF power measurement
• Voltage controlled filters and oscillators

Procurement Notes

Verify that the specific ordering suffix matches the required military qualification and package type. Confirm that the component meets all environmental specifications for the intended operating temperature range. Ensure that the supply chain documentation supports the authenticity of the military-grade designation. Check for any specific handling requirements associated with the ceramic dual in-line package.

Selection Notes

Select this component when high-frequency signal processing requires precise four-quadrant multiplication. The open-collector output design necessitates careful consideration of external load circuits and biasing networks. Evaluate the thermal characteristics of the 8-lead CERDIP package against the expected power dissipation. Ensure that the system layout supports the high-speed bipolar process requirements for optimal performance.

Part Context

The AD834 series includes variants such as the commercial AD834J and industrial AD834A. The AD834SQ/883B specifically denotes the military specification version available in an 8-lead CERDIP package. This variant is distinguished by its wider operating temperature range compared to standard commercial or industrial counterparts.

Replacement Considerations

Direct substitutes include other AD834 variants within the same family, such as the AD834A or AD834J, provided the temperature range and package compatibility are acceptable for the application.