Overview
The DAC8812IBPW is a dual, 16-bit, current-output digital-to-analog converter (DAC) produced by Texas Instruments. It is designed to operate from a single 2.7-V to 5.5-V supply, making it versatile for various applications. The DAC features an internal feedback resistor for temperature tracking and an external I-to-V precision amplifier for accurate output. It also includes a double-buffered, serial data interface compatible with SPI and microcontrollers, enabling high-speed data transfer and simultaneous multichannel updates.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Relative Accuracy | ±1 LSB (DAC8812C), ±2 LSB (DAC8812B) | |
| Differential Nonlinearity | ±1 LSB | |
| Full-Scale Current | 2 mA ±20% (with VREF = ±10 V) | |
| Settling Time | 0.5 μs | |
| Reference Bandwidth | 10 MHz | |
| Reference Dynamics | –105 dB THD | |
| Serial Interface | SPI-Compatible 3-Wire, 50 MHz | |
| Operating Temperature Range | –40°C to 85°C | |
| Package Type | TSSOP (16 pins) | |
| Power Supply Range | 2.7 V to 5.5 V |
Key Features
- Relative Accuracy: ±1 LSB Max
- Differential Nonlinearity: ±1 LSB Max
- Full-Scale Current: 2 mA ±20% with VREF = ±10 V
- Settling Time: 0.5 μs
- Midscale or Zero-Scale Reset
- Separate 4Q Multiplying Reference Inputs
- Reference Bandwidth: 10 MHz
- Reference Dynamics: –105 dB THD
- SPI-Compatible 3-Wire Interface: 50 MHz
- Double Buffered Registers for Simultaneous Multichannel Update
- Internal Power-On Reset
- Industry-Standard Pin Configuration
Applications
- Automatic Test Equipment
- Instrumentation
- Digitally Controlled Calibration
Q & A
- What is the resolution of the DAC8812?
The DAC8812 has a resolution of 16 bits.
- What is the operating voltage range of the DAC8812?
The DAC8812 operates from a single 2.7-V to 5.5-V supply.
- What is the settling time of the DAC8812?
The settling time of the DAC8812 is 0.5 μs.
- Does the DAC8812 support simultaneous multichannel updates?
- What type of serial interface does the DAC8812 use?
The DAC8812 uses an SPI-Compatible 3-Wire interface with a speed of up to 50 MHz.
- How does the power-on reset function work on the DAC8812?
The internal power-on reset forces all input and DAC registers to the zero-code state or midscale, depending on the MSB pin voltage, when the VDD power supply is turned on.
- What is the reference bandwidth of the DAC8812?
The reference bandwidth of the DAC8812 is 10 MHz.
- Can the DAC8812 handle both positive and negative reference voltages?
- What is the package type of the DAC8812IBPW?
The DAC8812IBPW comes in a TSSOP (16 pins) package.
- What is the operating temperature range of the DAC8812?
The operating temperature range of the DAC8812 is –40°C to 85°C.
