Overview
The AD8801AR-REEL, produced by Analog Devices Inc., is an octal 8-bit TrimDAC (digitally controlled potentiometer) that offers eight digitally controlled DC voltage outputs. This component is designed to replace mechanical trimmers in various applications, providing a more precise and reliable solution. It features a mid-scale preset, making it ideal for potentiometer replacement where adjustments start at a nominal value. The AD8801 is easily programmed via a serial interface, making it compatible with microcontrollers.
Key Specifications
| Parameter | Value |
|---|---|
| Number of DACs | 8 |
| Resolution | 8-bit |
| Package Type | 16-pin SOIC, 16-pin DIP |
| Supply Voltage | 5 V |
| Supply Current (Active) | 5 mA |
| Supply Current (Shutdown) | 5 µA |
| Settling Time | 0.6 µs |
| Reference Input Pins | VREFH, VREFL (VREFL internally connected to GND for AD8801) |
| Output Voltage Range | Dependent on VREFH and VREFL settings |
| Serial Interface | Three-wire serial input |
| Data Word Length | 11 bits (3 bits for address, 8 bits for data) |
Key Features
- Eight digitally controlled DC voltage outputs
- Mid-scale preset for easy adjustment starting at a nominal value
- Easily programmed via a three-wire serial interface
- Low power consumption: 5 mA active, 5 µA in shutdown mode
- Fast settling time of 0.6 µs
- Available in 16-pin SOIC and 16-pin DIP packages
- RoHS compliant
Applications
- Gain control of video amplifiers
- Voltage-controlled frequencies and bandwidths in video equipment
- Geometric correction and automatic adjustment in CRT computer graphic displays
- General DC voltage adjustment applications
Q & A
- What is the AD8801AR-REEL used for? The AD8801AR-REEL is used to replace mechanical trimmers with digitally controlled DC voltage outputs, ideal for applications requiring precise voltage adjustments.
- How many DACs does the AD8801AR-REEL contain? The AD8801AR-REEL contains eight voltage output digital-to-analog converters.
- What is the resolution of the AD8801AR-REEL? The resolution of the AD8801AR-REEL is 8-bit.
- What are the available package types for the AD8801AR-REEL? The AD8801AR-REEL is available in 16-pin SOIC and 16-pin DIP packages.
- What is the supply voltage for the AD8801AR-REEL? The supply voltage for the AD8801AR-REEL is 5 V.
- How much current does the AD8801AR-REEL consume in active and shutdown modes? The AD8801AR-REEL consumes 5 mA in active mode and 5 µA in shutdown mode.
- What is the settling time of the AD8801AR-REEL? The settling time of the AD8801AR-REEL is 0.6 µs.
- How is the AD8801AR-REEL programmed? The AD8801AR-REEL is programmed via a three-wire serial interface.
- What determines the output voltage range of the AD8801AR-REEL? The output voltage range is determined by the VREFH and VREFL pins.
- Is the AD8801AR-REEL RoHS compliant? Yes, the AD8801AR-REEL is RoHS compliant.
