AD8803AR-REEL

Overview

The AD8803AR-REEL is an octal 8-bit TrimDAC manufactured by Analog Devices Inc. It provides eight individually programmable DC voltage outputs controlled via a standard three-wire serial interface (SPI). The device operates on a single +3 V to +5 V supply and features a separate VREFL pin, allowing independent control of the zero-scale voltage for optimized resolution in limited voltage ranges. Key electrical specifications include a settling time of 0.6 μs, integral nonlinearity error of ±1.5 LSB, and differential nonlinearity guaranteed monotonicity. It includes a power shutdown mode consuming ≤25 mW while maintaining latch settings.

Feature Summary

• Octal 8-Bit DAC with Eight Individually Programmable Outputs
• Three-Wire Serial Input Interface (SPI Compatible)
• Separate VREFL Pin for Independent Zero-Scale Voltage Setting
• Power Shutdown Mode with Latch Retention

Applications

• Automatic Adjustment Systems
• Trimmer Potentiometer Replacement
• Video and Audio Equipment Gain and Offset Adjustment
• Portable and Battery Operated Equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the SO-16 surface mount package is sensitive to electrostatic discharge. Ensure that the specific REEL packaging variant matches the required quantity for production runs. Check for any end-of-life notifications or discontinuation notices from Analog Devices prior to final procurement decisions.

Selection Notes

Select the AD8803AR-REEL when independent zero-scale adjustment is required, distinguishing it from the AD8801 which lacks the VREFL pin. Ensure the application requires a single +3 V to +5 V supply voltage. Verify that the 8-bit resolution and 0.6 μs settling time meet system performance requirements. Consider the SO-16 package dimensions for PCB layout constraints.

Part Context

The AD8803AR-REEL belongs to the AD8801/AD8803 family of octal digital-to-analog converters. It is specifically designed to replace mechanical trimmer potentiometers in new designs. The 'AR' suffix indicates the SO-16 surface mount package, and 'REEL' denotes the tape-and-reel packaging format suitable for automated assembly processes.

Replacement Considerations

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