Overview
The DAC53401DSGRQ1 is a 10-bit, single-channel, voltage-output digital-to-analog converter (DAC) designed by Texas Instruments for automotive applications. This device is part of the DACx3401-Q1 family, which includes both 10-bit and 8-bit versions. It is AEC-Q100 qualified, ensuring reliability and performance in harsh automotive environments. The DAC53401DSGRQ1 operates over a wide temperature range of –40°C to +125°C and supports a power supply voltage from 1.8 V to 5.5 V. It features a PMBus-compatible I2C interface, nonvolatile memory (NVM), and an internal reference, making it suitable for various automotive and general-purpose applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | Number of bits | 10 bits (DAC53401-Q1), 8 bits (DAC43401-Q1) |
| Operating Temperature Range | Temperature range in °C | –40°C to +125°C |
| Power Supply Voltage | Voltage range in V | 1.8 V to 5.5 V |
| Package Type | Package description | WSON (DSG) with 8 pins |
| Interface | Communication interface | PMBus-compatible I2C (standard mode, fast mode, and fast mode plus) |
| INL and DNL | Integral and differential nonlinearity | ±1 LSB |
| Zero Code Error | Error at zero code | 6 to 12 mV (typical at VDD = 5.5 V, gain = 4x) |
| Full Scale Error | Error at full scale | –0.5 to 0.5 %FSR (typical) |
| Load Regulation | Voltage regulation at midscale | 0.4 mV/mA (typical at VDD = 5.5 V) |
Key Features
- AEC-Q100 qualified for automotive applications, ensuring reliability in harsh environments
- Wide operating temperature range: –40°C to +125°C
- Low power consumption and tiny 8-pin WSON package
- PMBus-compatible I2C interface for communication
- Nonvolatile memory (NVM) for storing configuration and data
- Internal reference and option to use power supply as a reference
- Force-sense output, PWM output, and NVM capabilities for advanced system control without software
- Support for I2C standard mode, fast mode, and fast mode plus
Applications
- LED and general-purpose bias point generation
- Power supply control
- PWM signal generation
- Automotive lighting systems
- Automotive control systems requiring precise analog output
Q & A
- What is the resolution of the DAC53401DSGRQ1?
The DAC53401DSGRQ1 has a resolution of 10 bits, while the DAC43401-Q1 has a resolution of 8 bits.
- What is the operating temperature range of the DAC53401DSGRQ1?
The operating temperature range is –40°C to +125°C.
- What is the power supply voltage range for the DAC53401DSGRQ1?
The power supply voltage range is from 1.8 V to 5.5 V.
- What type of package does the DAC53401DSGRQ1 come in?
The DAC53401DSGRQ1 comes in an 8-pin WSON (DSG) package.
- What communication interface does the DAC53401DSGRQ1 use?
The DAC53401DSGRQ1 uses a PMBus-compatible I2C interface.
- What are some key features of the DAC53401DSGRQ1?
Key features include AEC-Q100 qualification, low power consumption, nonvolatile memory, internal reference, and advanced output capabilities such as force-sense and PWM outputs).
- What are some typical applications for the DAC53401DSGRQ1?
Typical applications include LED and general-purpose bias point generation, power supply control, PWM signal generation, and various automotive control systems).
- How accurate is the DAC53401DSGRQ1 in terms of INL and DNL?
The DAC53401DSGRQ1 has an integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1 LSB).
- What is the zero code error and full scale error of the DAC53401DSGRQ1?
The zero code error is typically 6 to 12 mV, and the full scale error is typically –0.5 to 0.5 %FSR).
- How does the DAC53401DSGRQ1 handle load regulation?
The DAC53401DSGRQ1 has a load regulation of 0.4 mV/mA at midscale).
