Overview
The DAC43204RTER from Texas Instruments is an 8-bit, 4-channel voltage/current output smart Digital-to-Analog Converter (DAC). This device is part of the DACx3204 family, which includes pin-compatible 12-bit, 10-bit, and 8-bit versions. The DAC43204RTER is designed for flexible configuration, offering programmable voltage or current outputs, high-impedance output when VDD is off, and various power-down modes. It features a 50-MHz SPI-compatible interface, automatically detected I²C, PMBus, or SPI interfaces, and includes user-programmable nonvolatile memory (NVM) and predefined waveform generation capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8 bits | |
| Number of Channels | 4 | |
| Voltage Output Gains | 1x, 1.5x, 2x, 3x, 4x | |
| Current Output Range | ±25 µA, ±50 µA, ±125 µA, ±250 µA | |
| Integral Nonlinearity (INL) | –1 to 1 LSB | |
| Differential Nonlinearity (DNL) | –1 to 1 LSB | |
| Power Supply Range | 1.8 V to 5.5 V | V |
| Temperature Range | –40°C to +125°C | °C |
| Package Type | 16-pin WQFN (3 mm × 3 mm) | |
| Interface | 50-MHz SPI-compatible, I²C, PMBus |
Key Features
- Programmable voltage or current outputs with flexible configuration
- High-impedance output when VDD is off and high-impedance and resistive pulldown power-down modes
- Predefined waveform generation: sine wave, triangular, sawtooth
- User-programmable nonvolatile memory (NVM)
- Internal, external, or power-supply as reference
- General-purpose input/output (GPIO) configurable as multiple functions
- Automatically detected I²C, PMBus, or SPI interfaces
- Programmable comparator mode for all channels
Applications
- Voltage margining and scaling
- DC set-point for biasing and calibration
- Waveform generation
- Rack server
- Optical module
- Inter-DC interconnect (metro)
- High-performance computing
- Standard notebook PC
Q & A
- What is the resolution of the DAC43204RTER?
The DAC43204RTER has an 8-bit resolution.
- How many channels does the DAC43204RTER have?
The DAC43204RTER has 4 channels.
- What are the available gains for voltage outputs?
The available gains for voltage outputs are 1x, 1.5x, 2x, 3x, and 4x.
- What is the range of current outputs for the DAC43204RTER?
The current output range options are ±25 µA, ±50 µA, ±125 µA, and ±250 µA.
- What is the operating temperature range of the DAC43204RTER?
The operating temperature range is –40°C to +125°C.
- What types of interfaces does the DAC43204RTER support?
The DAC43204RTER supports 50-MHz SPI-compatible, I²C, and PMBus interfaces.
- Does the DAC43204RTER have waveform generation capabilities?
- What is the package type of the DAC43204RTER?
The DAC43204RTER comes in a 16-pin WQFN package (3 mm × 3 mm).
- Can the DAC43204RTER be used in processor-less applications?
- What are some common applications of the DAC43204RTER?
