Overview
The DAC7731EC/1K, produced by Texas Instruments, is a 16-bit Digital-to-Analog Converter (DAC) designed for high-precision applications. It features a +10V internal reference and supports both unipolar and bipolar operation through pin strapping. The DAC is optimized for use in automatic test equipment, industrial process control, and other demanding environments. It offers a configurable output voltage range of ±10V, ±5V, or +10V and includes a high-speed output amplifier with a settling time of 5µs to ±0.003% Full-Scale Range (FSR) for a 20V full-scale change. The device operates with low power consumption, typically 100mW, and is available in a small SSOP-24 package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 bits | |
| Internal Reference | +10V | |
| Output Voltage Range | ±10V, ±5V, or +10V | |
| Settling Time | 5µs to ±0.003% FSR | |
| Power Consumption | 100mW (typical) | |
| Operating Temperature | –40°C to +85°C | |
| Package Type | SSOP-24 | |
| Serial Interface | 3-wire, SPI-compatible | |
| Reset Options | Reset to zero or mid-scale |
Key Features
- Low power consumption: 150mW maximum
- +10V internal reference
- Unipolar or bipolar operation by pin strapping
- High-speed output amplifier with 5µs settling time to ±0.003% FSR
- 16-bit monotonicity over –40°C to +85°C
- Configurable voltage output: ±10V, ±5V, or +10V
- Reset to zero or mid-scale
- Double-buffered data input
- Daisy-chain feature for multiple DAC7731s on a single bus
- Small SSOP-24 package
Applications
- Process control
- Automatic test equipment (ATE) pin electronics
- Closed-loop servo control
- Motor control
- Data acquisition systems
Q & A
- What is the resolution of the DAC7731EC/1K?
The DAC7731EC/1K has a resolution of 16 bits. - What is the internal reference voltage of the DAC7731EC/1K?
The internal reference voltage is +10V. - What are the configurable output voltage ranges of the DAC7731EC/1K?
The output voltage can be configured to ±10V, ±5V, or +10V. - What is the settling time of the DAC7731EC/1K?
The settling time is 5µs to ±0.003% FSR for a 20V full-scale change. - How much power does the DAC7731EC/1K typically consume?
The device typically consumes 100mW of power. - What is the operating temperature range of the DAC7731EC/1K?
The operating temperature range is –40°C to +85°C. - What type of package is the DAC7731EC/1K available in?
The DAC7731EC/1K is available in a small SSOP-24 package. - What type of serial interface does the DAC7731EC/1K use?
The device uses a 3-wire, SPI-compatible serial interface. - Can the DAC7731EC/1K be reset to a specific output level?
Yes, the DAC output can be reset to either zero or mid-scale. - Does the DAC7731EC/1K support daisy-chaining?
Yes, it supports daisy-chaining multiple DAC7731s on a single bus.
