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Features
- 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
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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.
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AD8803
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| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD8803ARZ |
16-Lead SOIC
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| AD8803ARZ-REEL |
16-Lead SOIC
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- AD8803ARZ
- Pin/Package Drawing
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16-Lead SOIC
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- AD8803ARZ-REEL
- Pin/Package Drawing
-
16-Lead SOIC
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
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Part Models
Product Lifecycle
PCN
Mar 25, 2021
- 21_0080
Amkor Philippines as an Alternate Site for SOICN
AD8803ARZ
PRODUCTION
AD8803ARZ-REEL
PRODUCTION
Feb 6, 2014
- 13_0234
Qualification of ASE Chungli, as an Alternate Assembly Site for Select 16L SOICN Packages
AD8803ARZ
PRODUCTION
AD8803ARZ-REEL
PRODUCTION
Oct 5, 2010
- 10_0146
Halogen Free Material Change for 14/16L SOIC_N Products
AD8803ARZ
PRODUCTION
AD8803ARZ-REEL
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Mar 25, 2021
- 21_0080
Amkor Philippines as an Alternate Site for SOICN
AD8803ARZ
PRODUCTION
AD8803ARZ-REEL
PRODUCTION
Feb 6, 2014
- 13_0234
Qualification of ASE Chungli, as an Alternate Assembly Site for Select 16L SOICN Packages
AD8803ARZ
PRODUCTION
AD8803ARZ-REEL
PRODUCTION
Oct 5, 2010
- 10_0146
Halogen Free Material Change for 14/16L SOIC_N Products
AD8803ARZ
PRODUCTION
AD8803ARZ-REEL
PRODUCTION
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