AD8803
PRODUCTIONOctal 8-Bit TrimDAC with Power Shutdown & Mid-Scale Preset
- Part Models
- 2
- 1ku List Price
- Starting From $5.79
Part Details
- Low Cost
- Replaces Eight Potentiometers
- Eight Individually Programmable Outputs
- Three-Wire Serial Input
- Power Shutdown ≤ µW
- Including IDD an IREF
- Midscale Preset, AD8801
- Separate VREFLRange
Setting, AD8803 - +3 to +5 Single Supply Operation
The AD8801 / AD8803 provides eight digitally controlled dc voltage outputs. This potentiometer divider TrimDAC® allows replacement of the mechanical trimmer function in new designs. The AD8801 / AD8803 is ideal for dc voltage adjustment applications.
Easily programmed by serial interfaced microcontroller ports, the AD8801 with its midscale preset is ideal for potentiometer replacement where adjustments start at a nominal value. Applications such as gain control of video amplifiers, voltage controlled frequencies and bandwidths in video equipment, geometric correction and automatic adjustment in CRT computer graphic displays are a few of the many applications ideally suited for these parts. The AD8803 provides independent control of both the top and bottom end of the potentiometer divider allowing a separate zero-scale voltage setting determined by the VREFL pin. This is helpful for maximizing the resolution of devices with a limited allowable voltage control range.
Internally the AD8801 / AD8803 contain eight voltage output digital-to-analog converters, sharing a common reference voltage input.
Each DAC has its own DAC register that holds its output state. These DAC registers are updated from an internal serial-to-parallel shift register that is loaded from a standard three-wire serial input digital interface. Eleven data bits make up the data word clocked into the serial input register. This data word is decoded where the first 3 bits determine the address of the DAC register to be loaded with the last 8 bits of data. The AD8801 / AD8803 consumes only 5 mA from 5 V power supplies. In addition, in shutdown mode reference input current consumption is also reduced to 5 µA while saving the DAC latch settings for use after return to normal operation.
The AD8801 / AD8803 is available in 16-pin plastic DIP and the 1.5 mm height SO-16 surface mount packages.
Documentation
Data Sheet 1
Application Note 1
Solutions Bulletin & Brochure 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD8803ARZ | 16-Lead SOIC | ||
| AD8803ARZ-REEL | 16-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 25, 2021 - 21_0080 Amkor Philippines as an Alternate Site for SOICN |
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| AD8803ARZ | PRODUCTION | |
| AD8803ARZ-REEL | PRODUCTION | |
|
Feb 6, 2014 - 13_0234 Qualification of ASE Chungli, as an Alternate Assembly Site for Select 16L SOICN Packages |
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| AD8803ARZ | PRODUCTION | |
| AD8803ARZ-REEL | PRODUCTION | |
|
Oct 5, 2010 - 10_0146 Halogen Free Material Change for 14/16L SOIC_N Products |
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| AD8803ARZ | PRODUCTION | |
| AD8803ARZ-REEL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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