Overview
The AD8801ARZ-REEL, produced by Analog Devices Inc., is an octal 8-bit TrimDAC (digital-to-analog converter) with power shutdown and mid-scale preset capabilities. This device is designed to replace mechanical trimmers in various applications, offering a digitally controlled DC voltage output. It features eight voltage output DACs sharing a common reference voltage input, each with its own DAC register and updated via a three-wire serial input digital interface. The AD8801ARZ-REEL is ideal for applications requiring precise DC voltage adjustments and is available in 16-pin plastic DIP and SO-16 surface mount packages.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | N | 8 | Bits | |||
| Integral Nonlinearity Error | INL | -1.5 | ±1/2 | +1.5 | LSB | |
| Differential Nonlinearity Error | DNL | -1 | ±1/4 | +1 | LSB | |
| Full-Scale Error | GFSE | -4 | -2.8 | +0.5 | LSB | |
| Zero-Code Error | VZSE | -0.5 | ±0.1 | +0.5 | LSB | |
| DAC Output Resistance | ROUT | 3 | 5 | 8 | kΩ | |
| Output Resistance Match | ∆R/RO | 1% | ||||
| Supply Voltage | VDD | 5.5 | V | |||
| Operating Temperature | TA | -40 | 85 | °C | ||
| Supply Current | IDD | VDD = 5V | 5 | mA | ||
| Shutdown Current | VDD = 5V | 5 | µA |
Key Features
- Octal 8-bit digital-to-analog converters with shared common reference voltage input.
- Three-wire serial input digital interface for easy programming via microcontrollers.
- Mid-scale preset and power shutdown capabilities.
- Low power consumption: 5 mA from 5 V power supplies and 5 µA in shutdown mode.
- Available in 16-pin plastic DIP and SO-16 surface mount packages.
- Independent control of top and bottom ends of the potentiometer divider (AD8803 model).
Applications
- Gain control of video amplifiers.
- Voltage-controlled frequencies and bandwidths in video equipment.
- Geometric correction and automatic adjustment in CRT computer graphic displays.
- Replacement of mechanical trimmers in new designs.
- DC voltage adjustment applications.
Q & A
- What is the resolution of the AD8801ARZ-REEL? The resolution is 8 bits.
- What is the typical supply current of the AD8801ARZ-REEL? The typical supply current is 5 mA from a 5 V power supply.
- What are the package options for the AD8801ARZ-REEL? It is available in 16-pin plastic DIP and SO-16 surface mount packages.
- How does the AD8801ARZ-REEL handle power shutdown? In shutdown mode, the reference input current consumption is reduced to 5 µA while saving the DAC latch settings.
- What is the operating temperature range of the AD8801ARZ-REEL? The operating temperature range is from -40°C to 85°C.
- Can the AD8801ARZ-REEL be used to replace mechanical trimmers? Yes, it is designed to replace mechanical trimmers in new designs.
- How many DACs are included in the AD8801ARZ-REEL? It includes eight voltage output digital-to-analog converters.
- What is the maximum supply voltage for the AD8801ARZ-REEL? The maximum supply voltage is 5.5 V.
- Does the AD8801ARZ-REEL support independent control of the potentiometer divider ends? Yes, the AD8803 model provides independent control of both the top and bottom ends of the potentiometer divider.
- How is the AD8801ARZ-REEL programmed? It is programmed via a three-wire serial input digital interface.
