Overview
The DAC8420ES, produced by Analog Devices Inc., is a quad, 12-bit voltage-output Digital-to-Analog Converter (DAC) with a serial digital interface. This device is fabricated using BiCMOS technology, which ensures high circuit density and low power consumption. It is available in a 16-lead SOIC package and features fully buffered analog voltage outputs that require no external components to achieve specified performance. The DAC8420ES is designed for easy interface with microprocessors and offers user-programmable reset control and flexible output voltage ranges determined by the reference inputs VREFHI and VREFLO.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Number of DACs | 4 | |
| Supply Voltage Range | +5 V to ±15 V | V |
| Reference Voltage Range | +2.5 V to ±10 V | V |
| Power Dissipation (±15 V) | < 255 mW | mW |
| Power Dissipation (+5 V) | < 35 mW | mW |
| Operating Temperature Range | -40°C to +85°C | °C |
| Logic Input High Voltage | 2.4 V | V |
| Logic Input Low Voltage | 0.8 V | V |
| Settling Time | 8 μs (to 0.01%) | μs |
| Slew Rate | 1.5 V/μs (10% to 90%) | V/μs |
Key Features
- Quad 12-bit voltage-output DAC with serial digital interface.
- BiCMOS technology for high circuit density and low power consumption.
- Fully buffered analog voltage outputs requiring no external components.
- 3-wire serial digital input easily interfaced to microprocessors.
- User-programmable reset control CLR for setting outputs to zero scale or midscale.
- Flexible output voltage range set by VREFHI and VREFLO inputs.
- Available in 16-lead PDIP, SOIC, and CERDIP packages.
- Low output glitch impulse during major code transitions.
Applications
The DAC8420ES is suitable for a variety of applications requiring precise digital-to-analog conversion, such as:
- Industrial control systems.
- Automotive systems.
- Medical devices.
- Aerospace and defense systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the DAC8420ES?
The DAC8420ES has a resolution of 12 bits.
- How many DACs are included in the DAC8420ES?
The DAC8420ES includes four DACs.
- What is the supply voltage range for the DAC8420ES?
The supply voltage range is from +5 V to ±15 V.
- What is the reference voltage range for the DAC8420ES?
The reference voltage range is from +2.5 V to ±10 V.
- How much power does the DAC8420ES dissipate when operating from ±15 V supplies?
The power dissipation is less than 255 mW when operating from ±15 V supplies.
- What is the operating temperature range of the DAC8420ES?
The operating temperature range is from -40°C to +85°C.
- How does the user-programmable reset control work?
The user-programmable reset control CLR forces all four DAC outputs to either zero scale or midscale, asynchronously overriding the current DAC register values.
- What types of packages are available for the DAC8420ES?
The DAC8420ES is available in 16-lead PDIP, SOIC, and CERDIP packages.
- What is the settling time of the DAC8420ES?
The settling time is 8 μs to 0.01%.
- What is the slew rate of the DAC8420ES?
The slew rate is 1.5 V/μs (10% to 90%).
