Overview
The DAC8420ESZ, produced by Analog Devices Inc., is a quad 12-bit serial voltage-output Digital-to-Analog Converter (DAC) integrated into a monolithic device using BiCMOS technology. This component is available in a 16-lead SOIC package and is characterized by its high circuit density and low power consumption. The DAC8420ESZ 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 device offers fully buffered analog voltage outputs that do not require external components to achieve specified performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of D/A Converters | 4 | |
| Number of Bits | 12 | |
| Package Type | SOIC-16 | |
| Operating Temperature | -40°C to 85°C | |
| Supply Voltage | +5 V to ±15 V | V |
| Reference Voltage | +2.5 V to ±10 V | V |
| Power Dissipation | 35 mW (max at +5 V), 255 mW (max at ±15 V) | mW |
| Settling Time | 13 μs (typ) | μs |
| INL/DNL | ±0.5, ±0.25 LSB | LSB |
| Data Interface | SPI (3-wire serial digital input) |
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 easily interfaced with microprocessors.
- Fully buffered analog voltage outputs requiring no external components.
- User-programmable reset control (CLR) for zero scale or midscale output.
- Flexible output voltage range set by VREFHI and VREFLO inputs.
- Low power dissipation: 35 mW (max at +5 V) and 255 mW (max at ±15 V).
Applications
- Software controlled calibration.
- Servo controls.
- Process control and automation.
- Automated Test Equipment (ATE).
Q & A
- What is the DAC8420ESZ? The DAC8420ESZ is a quad 12-bit serial voltage-output DAC produced by Analog Devices Inc.
- What package types are available for the DAC8420ESZ? The DAC8420ESZ is available in 16-lead SOIC, PDIP, and CERDIP packages.
- What is the operating temperature range of the DAC8420ESZ? The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the DAC8420ESZ? The supply voltage range is from +5 V to ±15 V.
- How many DACs are integrated into the DAC8420ESZ? The DAC8420ESZ integrates four 12-bit DACs.
- What is the data interface type of the DAC8420ESZ? The DAC8420ESZ uses a 3-wire serial digital interface (SPI).
- What is the settling time of the DAC8420ESZ? The settling time is typically 13 μs.
- Does the DAC8420ESZ require external components for its analog outputs? No, the DAC8420ESZ has fully buffered analog voltage outputs that do not require external components.
- What are some common applications of the DAC8420ESZ? Common applications include software controlled calibration, servo controls, process control and automation, and Automated Test Equipment (ATE).
- How does the user-programmable reset control (CLR) function in the DAC8420ESZ? The CLR forces all four DAC outputs to either zero scale or midscale, asynchronously overriding the current DAC register values).
