Overview
The DAC8420FPZ is a quad, 12-bit voltage-output Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This monolithic device utilizes BiCMOS technology, offering high circuit density and low power consumption. It features a simple, 3-wire serial digital interface that can be easily interfaced with microprocessors running at up to 10 MHz, requiring minimal additional circuitry. The DAC8420FPZ is available in a 16-lead PDIP package and supports a wide range of supply voltages from +5 V to ±15 V, with reference voltages ranging from +2.5 V to ±10 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Supply Voltage | +5 V | ±15 V | V | |
| Reference Voltage Range | +2.5 V | ±10 V | V | |
| Positive Supply Current (IDD) | 4 | 7 | mA | |
| Negative Supply Current (ISS) | -6 | -3 | mA | |
| Power Dissipation (PDISS) at ±15 V | 255 | mW | ||
| Power Dissipation (PDISS) at +5 V | 35 | mW | ||
| Output Voltage Range | Dependent on VREFHI and VREFLO | V | ||
Key Features
- Quad 12-bit voltage-output DAC with serial digital interface.
- BiCMOS technology for high circuit density and low power consumption.
- 3-wire serial digital input interface compatible with microprocessors up to 10 MHz.
- User-programmable reset control (CLR) to set outputs to zero scale or midscale.
- Flexible output voltage range set by VREFHI and VREFLO inputs, supporting unipolar and bipolar signal swings.
- Low output glitch impulse of 64 nV-s (typical).
- Available in 16-lead PDIP, SOIC, and CERDIP packages.
Applications
The DAC8420FPZ is suitable for a variety of applications requiring precise digital-to-analog conversion, including:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the DAC8420FPZ?
The DAC8420FPZ has a resolution of 12 bits.
- What are the supported supply voltage ranges for the DAC8420FPZ?
The DAC8420FPZ supports supply voltages ranging from +5 V to ±15 V.
- How is the output voltage range determined for the DAC8420FPZ?
The output voltage range is determined by the inputs VREFHI and VREFLO, allowing for unipolar or bipolar signal swings.
- What is the typical power dissipation of the DAC8420FPZ when operating from a +5 V supply?
The typical power dissipation is 35 mW when operating from a +5 V supply.
- Can the DAC8420FPZ be easily interfaced with microprocessors?
- What is the function of the CLR pin on the DAC8420FPZ?
The CLR pin is a user-programmable reset control that forces all four DAC outputs to either zero scale or midscale.
- In what packages is the DAC8420FPZ available?
The DAC8420FPZ is available in 16-lead PDIP, SOIC, and CERDIP packages.
- What is the typical output glitch impulse of the DAC8420FPZ?
The typical output glitch impulse is 64 nV-s.
- What are some common applications of the DAC8420FPZ?
- How does the DAC8420FPZ handle reference voltages?
The DAC8420FPZ allows reference voltages ranging from +2.5 V to ±10 V, set by the VREFHI and VREFLO inputs.
