Overview
The DAC7731E/1K, produced by Texas Instruments, is a 16-bit Digital-to-Analog Converter (DAC) designed for high-performance applications. It offers 16 bits of monotonic performance over a specified operating temperature range and includes a +10V internal reference. This DAC is particularly suited for automatic test equipment and industrial process control, with the flexibility to configure its output swing in ±10V, ±5V, or +10V ranges. The device features a high-speed output amplifier with a maximum settling time of 5µs to ±0.003% Full-Scale Range (FSR) for a 20V full-scale change, and it consumes only 100mW (typical) of power.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Output Voltage Range | -10V to +10V, -5V to +5V, 0V to +10V | - | - | V |
| Settling Time | - | 5µs | - | µs |
| Accuracy (Linearity Error - INL) | ±6 | ±4 | ±3 | LSB |
| Differential Linearity Error (DNL) | ±4 | ±2 | ±1 | LSB |
| Offset Error | ±0.1 | - | - | % of FSR |
| Gain Error (With Internal REF) | ±0.4 | ±0.25 | ±0.15 | % of FSR |
| Power Consumption | - | 100mW | - | mW |
| Operating Temperature Range | -40°C | - | +85°C | °C |
| Package Type | - | - | - | SSOP-24 |
Key Features
- +10V internal reference
- Unipolar or bipolar operation by pin strapping
- High-speed output amplifier with 5µs settling time to ±0.003% FSR
- Low power consumption: 100mW (typical)
- Standard 3-wire, SPI-compatible serial interface with double buffering
- User programmable reset control to min-scale (0000h) or mid-scale (8000h)
- 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 DAC7731E/1K?
The DAC7731E/1K has a resolution of 16 bits. - What are the configurable output voltage ranges of the DAC7731E/1K?
The output voltage ranges can be configured to ±10V, ±5V, or +10V. - What is the settling time of the DAC7731E/1K?
The settling time is 5µs to ±0.003% FSR for a 20V full-scale change. - How much power does the DAC7731E/1K consume?
The DAC7731E/1K consumes 100mW (typical) of power. - What type of serial interface does the DAC7731E/1K use?
The DAC7731E/1K uses a standard 3-wire, SPI-compatible serial interface with double buffering. - Can the DAC7731E/1K be reset to a specific output level?
Yes, the DAC7731E/1K has a user programmable reset control that forces the DAC output to either min-scale (0000h) or mid-scale (8000h). - What is the package type of the DAC7731E/1K?
The DAC7731E/1K is available in a SSOP-24 package. - What are the operating temperature ranges for the DAC7731E/1K?
The operating temperature range is from -40°C to +85°C. - Can multiple DAC7731E/1K devices be daisy-chained?
Yes, the DAC7731E/1K features a daisy-chain capability for multiple devices on a single bus. - What are some typical applications of the DAC7731E/1K?
Typical applications include process control, automatic test equipment, closed-loop servo control, motor control, and data acquisition systems.
