Overview
The DAC8814IBDBT is a quad, 16-bit, current-output digital-to-analog converter (DAC) produced by Texas Instruments. This component is designed to operate from a single +2.7-V to 5.0-V supply and is available in a 28-pin SSOP (DB) package. The DAC8814 features an external reference input voltage (VREF) that determines the full-scale output current, and it includes an internal feedback resistor (RFB) for temperature tracking when used with an external I-to-V precision amplifier.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Relative Accuracy | ±1 LSB Max | |
| Differential Nonlinearity | ±1 LSB Max | |
| Full-Scale Current (VREF = ±10 V) | 2 mA | |
| Settling Time | 0.5 µs | |
| Reference Bandwidth | 10 MHz | |
| Reference Dynamics | -105 dB THD | |
| SPI-Compatible Interface Frequency | 50 MHz | |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | SSOP (DB) 28 pins |
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 Change
- Internal Power-On Reset
- Industry-Standard Pin Configuration
Applications
- Automatic Test Equipment
- Instrumentation
- Digitally-Controlled Calibration
Q & A
- What is the resolution of the DAC8814?
The DAC8814 has a resolution of 16 bits.
- What is the operating voltage range for the DAC8814?
The DAC8814 operates from a single +2.7-V to 5.0-V supply.
- What is the full-scale current output when VREF = ±10 V?
The full-scale current output is 2 mA when VREF = ±10 V.
- What is the settling time of the DAC8814?
The settling time is 0.5 µs.
- Does the DAC8814 support SPI interface?
Yes, it supports an SPI-Compatible 3-Wire Interface with a frequency of up to 50 MHz.
- What is the package type of the DAC8814?
The DAC8814 is available in a 28-pin SSOP (DB) package.
- What are the key applications of the DAC8814?
The key applications include Automatic Test Equipment, Instrumentation, and Digitally-Controlled Calibration.
- Does the DAC8814 have internal power-on reset?
Yes, the DAC8814 has an internal power-on reset that forces the output voltage to zero at system turn-on.
- Can the DAC8814 perform simultaneous multichannel changes?
Yes, the double buffered registers enable simultaneous multichannel changes.
- What is the reference bandwidth of the DAC8814?
The reference bandwidth is 10 MHz.
