Overview
The DAC43701DSGR, part of the DACx3701 family, is a pin-compatible, 8-bit buffered voltage-output smart digital-to-analog converter (DAC) produced by Texas Instruments. These devices are known for their low power consumption and are available in a compact 8-pin WSON package. The DAC43701 is designed to operate with either an internal reference or the power supply as a reference, providing a full-scale output range of 1.8 V to 5.5 V. This smart DAC features nonvolatile memory (NVM), an internal reference, a PMBus-compatible I2C interface, force-sense output, and a general-purpose input, making it an excellent choice for various applications that require precise analog output control without the need for software.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8-bit | |
| Power Supply Voltage | 1.8 V to 5.5 V | V |
| Operating Temperature | -40°C to 125°C | °C |
| Integral Nonlinearity (INL) | -1 to 1 LSB | LSB |
| Differential Nonlinearity (DNL) | -1 to 1 LSB | LSB |
| Zero-Code Error | 6 to 12 mV (external reference), 6 to 15 mV (internal reference, gain = 4x) | mV |
| Output Voltage Range | 0 to 5.5 V | V |
| Interface | PMBus-compatible I2C | |
| Package | 8-pin WSON | |
| Body Size | 2.00 mm × 2.00 mm | mm |
Key Features
- Low power consumption
- Nonvolatile memory (NVM) for storing configuration and data
- Internal reference and option to use power supply as reference
- PMBus-compatible I2C interface supporting standard mode, fast mode, and fast mode plus
- Force-sense output and general-purpose input (GPI)
- Support for PWM input and output, and medical alarm tone generation
- Compact 8-pin WSON package
Applications
- Appliance door fade-in/fade-out and processorless LED dimming
- Medical devices such as ventilators, infusion pumps, anesthesia delivery systems, and surgical equipment
- Rack servers and data center applications
- Exit and emergency lighting systems
- General-purpose bias point generation, voltage margining, and scaling
Q & A
- What is the resolution of the DAC43701?
The DAC43701 has an 8-bit resolution.
- What is the operating voltage range of the DAC43701?
The operating voltage range is from 1.8 V to 5.5 V.
- What types of interfaces does the DAC43701 support?
The DAC43701 supports PMBus-compatible I2C interfaces, including standard mode, fast mode, and fast mode plus.
- What is the package type and size of the DAC43701?
The DAC43701 is available in an 8-pin WSON package with a body size of 2.00 mm × 2.00 mm.
- Does the DAC43701 have nonvolatile memory?
- What are some typical applications of the DAC43701?
Typical applications include appliance door fade-in/fade-out, medical devices, rack servers, exit and emergency lighting, and general-purpose bias point generation.
- How does the DAC43701 handle power supply references?
The DAC43701 can operate with either an internal reference or the power supply as a reference.
- What is the significance of the force-sense output in the DAC43701?
The force-sense output allows for precise control over the analog output, which is particularly useful in applications requiring accurate voltage levels.
- Does the DAC43701 support PWM input and output?
- What is the thermal performance of the DAC43701?
The DAC43701 has a junction-to-ambient thermal resistance (RθJA) of 49°C/W and other thermal metrics detailed in the datasheet.
