Overview
The DAC8420FP, produced by Analog Devices Inc., is a quad, 12-bit voltage-output Digital-to-Analog Converter (DAC) with a serial digital interface. This monolithic device utilizes BiCMOS technology, offering high circuit density and low power consumption. It features a simple, 3-wire serial digital input that can be easily interfaced with microprocessors running at 10 MHz, requiring minimal additional circuitry. The DAC8420FP is available in a 16-lead PDIP package and supports a wide range of supply voltages from +5 V to ±15 V, with reference inputs ranging from +2.5 V to ±10 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Number of DACs | 4 | |
| Package Type | 16-lead PDIP, SOIC, CERDIP | |
| Supply Voltage | +5 V to ±15 V | V |
| Reference Input Range | +2.5 V to ±10 V | V |
| Power Dissipation (±15 V) | < 255 mW | mW |
| Power Dissipation (+5 V) | < 35 mW | mW |
| Output Current Capability | Up to 5 mA | mA |
| Serial Interface Speed | Up to 10 MHz | MHz |
Key Features
- Quad 12-bit voltage-output DACs with serial digital interface.
- Utilizes BiCMOS technology for high circuit density and low power consumption.
- 3-wire serial digital input compatible with microprocessors running at 10 MHz.
- Fully buffered analog voltage outputs requiring no external components for specified performance.
- User-programmable reset control (CLR) to set outputs to zero scale or midscale.
- Flexible output voltage range set by VREFHI and VREFLO inputs.
- Capable of sourcing and sinking up to 5 mA when operating from ±15 V supplies.
Applications
- Software controlled calibration.
- Servo controls.
- Process control and automation.
- Automated Test Equipment (ATE).
Q & A
- What is the resolution of the DAC8420FP? The DAC8420FP has a 12-bit resolution.
- How many DACs are included in the DAC8420FP? The DAC8420FP includes four DACs.
- What are the available package types for the DAC8420FP? The DAC8420FP is available in 16-lead PDIP, SOIC, and CERDIP packages.
- What is the range of supply voltages for the DAC8420FP? The supply voltage range is from +5 V to ±15 V.
- What is the reference input range for the DAC8420FP? The reference input range is from +2.5 V to ±10 V.
- How much power does the DAC8420FP dissipate when operating from ±15 V supplies? The power dissipation is less than 255 mW when operating from ±15 V supplies.
- Can the DAC8420FP be interfaced with microprocessors? Yes, the DAC8420FP can be easily interfaced with microprocessors running at 10 MHz.
- What is the maximum output current capability of the DAC8420FP? The DAC8420FP can source and sink up to 5 mA when operating from ±15 V supplies.
- What is the purpose of the CLR reset control in the DAC8420FP? The CLR reset control forces all four DAC outputs to either zero scale or midscale, asynchronously overriding the current DAC register values.
- In what applications is the DAC8420FP commonly used? The DAC8420FP is commonly used in software controlled calibration, servo controls, process control and automation, and Automated Test Equipment (ATE).
