Overview
The DAC8581IPWRG4, produced by Texas Instruments, is a high-performance 16-bit digital-to-analog converter (DAC) known for its high speed, low noise, and bipolar output capabilities. This device features a proprietary resistor string architecture, providing exceptional differential linearity and temperature stability. It is designed for applications requiring fast settling times and low glitch performance. The DAC8581 is specified over a temperature range of –40°C to +85°C and is available in a TSSOP-16 package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Update Rate | 3 MSPS | |
| Settling Time (10-V step) | 0.65 µs | |
| Serial Interface | SPI, up to 50 MHz | |
| Logic Compatibility | 1.8-V to 5.5-V | |
| Analog Supply Voltage | ±5 V | |
| Digital Supply Voltage | 1.8 V to 5.5 V | |
| Output Range | ±VREF | V |
| Output Impedance | 600 Ω (with 200 pF load) | |
| Glitch Area | 0.5 nV-s | |
| Temperature Range | –40°C to +85°C | °C |
Key Features
- High-performance bipolar output buffer with ±5 V swing capability.
- Exceptionally low noise and glitch performance.
- Fast settling time of 0.65 µs for a 10-V step.
- Small-signal settling time under 0.3 µs.
- SPI interface up to 50 MHz, 1.8-V to 5.5-V logic compatible.
- Power-on-reset to midscale voltage.
- Hardware reset to midscale.
- Monotonic operation with low differential linearity error.
- Single external reference input.
Applications
- Precision instrumentation and measurement systems.
- Industrial control and automation.
- Aerospace and defense applications requiring high accuracy and reliability.
- Medical devices and diagnostic equipment.
- High-speed data acquisition systems.
Q & A
- What is the resolution of the DAC8581?
The DAC8581 has a resolution of 16 bits.
- What is the maximum update rate of the DAC8581?
The DAC8581 has a maximum update rate of 3 MSPS.
- How long does the DAC8581 take to settle for a 10-V step?
The DAC8581 settles within 0.65 µs for a 10-V step.
- What type of serial interface does the DAC8581 use?
The DAC8581 uses an SPI interface up to 50 MHz.
- What is the output voltage range of the DAC8581?
The output voltage range of the DAC8581 is ±VREF.
- Is the DAC8581 monotonic?
Yes, the DAC8581 is monotonic.
- What is the glitch performance of the DAC8581?
The DAC8581 has exceptionally low glitch performance, with a glitch area of 0.5 nV-s.
- What is the temperature range for the DAC8581?
The DAC8581 is specified over a temperature range of –40°C to +85°C.
- What package type is the DAC8581 available in?
The DAC8581 is available in a TSSOP-16 package.
- Does the DAC8581 have a power-on-reset feature?
Yes, the DAC8581 has a power-on-reset feature that sets the output to midscale voltage on power up.
