AD7808BRZ-REEL

Overview

The AD7808BRZ-REEL is an octal 10-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features serial loading capabilities and operates from a +3.3 V to +5 V power supply with an on-chip reference. The device incorporates double-buffered data inputs for simultaneous updates via the LDAC pin. Key electrical parameters include a maximum relative accuracy of -4 LSB, a gain error of -3% FSR, and a bias offset error of -60 mV. It supports both two's complement and binary input coding schemes.

Feature Summary

• Octal configuration with eight independent 10-bit DAC channels
• Serial interface utilizing FSIN, CLKIN, and SDIN lines
• On-chip 1.23 V bandgap reference with dual external reference capability
• Double-buffered registers enabling simultaneous analog output updates

Applications

• Optical disk drives
• Process control and voltage setpoint control systems
• Instrumentation and communication equipment
• Trim potentiometer replacement circuits
• Automatic calibration systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Confirm RoHS compliance status as specifications may vary by production lot. Ensure ESD precautions are observed during handling due to CMOS construction sensitivity.

Selection Notes

Select this component when multiple low-resolution analog outputs are required in a single package. Verify that the system timing requirements align with the specified CLKIN cycle time and setup/hold times. Ensure the load resistance meets the minimum 2 kΩ requirement to maintain specified performance levels.

Part Context

This part belongs to the AD7804/AD7805/AD7808/AD7809 family of 10-bit DACs. The AD7808 variant specifically provides octal channels with serial loading, distinguishing it from the quad-channel AD7804 and parallel-loading variants like the AD7809.

Replacement Considerations

Public confirmed substitute part numbers: None.