AD834SCHIPS

Overview

The AD834SCHIPS 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 when RL = 50 Ω. The device operates with supply voltages ranging from ±4 V to ±9 V and delivers differential ±1 V full-scale inputs with corresponding ±4 mA full-scale output currents. Typical power consumption is 280 mW at VS = ±5 V, with distortion ≤0.05% for 0 dBm input. The S-chip variant supports a military temperature range of −55°C to +125°C.

Feature Summary

• Monolithic construction with laser trimming for precision calibration
• High-speed bipolar process enabling transconductance bandwidth over 500 MHz
• Stable biasing based on band gap reference generator insensitive to temperature and supply variations
• Open-collector differential current outputs requiring external conversion for voltage signals

Applications

• High speed real time computation
• Wideband modulation and gain control
• Signal correlation and RF power measurement
• Voltage controlled filters and oscillators
• Linear keyers for high resolution television

Procurement Notes

Verify the specific suffix 'SCHIPS' indicates the bare die or chip form factor rather than a packaged component. Confirm the military grade temperature rating of -55°C to +125°C aligns with project requirements. Ensure handling procedures account for the exposed die nature if applicable. Cross-reference the exact part number against Analog Devices official documentation to confirm availability status and revision level before procurement.

Selection Notes

Select this component when high-frequency analog multiplication is required beyond standard multiplier capabilities. The open-collector output necessitates external circuitry such as transformers, baluns, or op-amps for voltage output applications. Consider the low power dissipation and wide supply voltage range for system design flexibility. Verify that the 500 MHz bandwidth meets the specific signal processing needs of the target application.

Part Context

The AD834 series represents a line of high-performance four-quadrant analog multipliers from Analog Devices. While packaged versions like the AD834J and AD834A offer commercial and industrial temperature ranges in DIP and SOIC packages, the SCHIPS designation refers to the semiconductor chip form. This allows for custom integration into hybrid circuits or specialized packaging solutions requiring military-grade thermal performance.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.