Overview
The DAC8803IDBR is a quad, 14-bit, current-output digital-to-analog converter (DAC) designed and manufactured by Texas Instruments. This component operates from a single +2.7-V to +5-V supply and is packaged in a compact SSOP-28 package. The DAC8803 is characterized by its high accuracy and speed, making it suitable for various precision applications. It features an external reference input voltage (VREF) that determines the full-scale output current, and an internal feedback resistor (RFB) for temperature tracking when used with an external I-to-V precision amplifier.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 | Bits |
| Relative Accuracy | ±1 | LSB |
| Differential Nonlinearity | ±1 | LSB |
| Full-Scale Current | 2 mA | - with VREF = ±10 V |
| Settling Time | 0.5 µs | - |
| Reference Bandwidth | 10 MHz | - |
| Reference Dynamics | -105 dB THD | - |
| Interface Type | SPI-Compatible 3-Wire Interface | - 50 MHz |
| Operating Temperature Range | -40 to +85 | °C |
| Package Type | SSOP-28 | - |
Key Features
- Relative Accuracy: 1 LSB Max
- Differential Nonlinearity: 1 LSB Max
- 2-mA Full-Scale Current with VREF = ±10 V
- 0.5-µs Settling Time
- Midscale or Zero-Scale Reset
- Four Separate 4Q Multiplying Reference Inputs
- Reference Bandwidth: 10 MHz
- Reference Dynamics: -105 dB THD
- SPI-Compatible 3-Wire Interface: 50-MHz
- Double Buffered Registers Enable Simultaneous Multichannel Update
- Internal Power-On Reset
- Compact SSOP-28 Package
- Industry-Standard Pin Configuration
Applications
- Automatic Test Equipment
- Instrumentation
- Digitally-Controlled Calibration
Q & A
- What is the resolution of the DAC8803IDBR?
The DAC8803IDBR has a resolution of 14 bits.
- What is the operating voltage range of the DAC8803IDBR?
The DAC8803IDBR operates from a single +2.7-V to +5-V supply.
- What is the settling time of the DAC8803IDBR?
The settling time of the DAC8803IDBR is 0.5 µs.
- What type of interface does the DAC8803IDBR use?
The DAC8803IDBR uses an SPI-Compatible 3-Wire Interface with a clock speed of up to 50 MHz.
- What is the package type of the DAC8803IDBR?
The DAC8803IDBR is packaged in an SSOP-28 package.
- What are the key applications of the DAC8803IDBR?
The DAC8803IDBR is used in Automatic Test Equipment, Instrumentation, and Digitally-Controlled Calibration.
- How does the DAC8803IDBR handle power-on reset?
The DAC8803IDBR has an internal power-on reset that forces the output voltage to zero at system turn-on.
- Can the DAC8803IDBR be used in multiple channel configurations?
Yes, the DAC8803IDBR supports simultaneous multichannel update through its double buffered registers.
- What is the reference bandwidth of the DAC8803IDBR?
The reference bandwidth of the DAC8803IDBR is 10 MHz.
- How does the DAC8803IDBR handle temperature tracking?
The DAC8803IDBR uses an internal feedback resistor (RFB) for temperature tracking when combined with an external I-to-V precision amplifier.
