Overview
The DAC5571IDBVRG4 is a low-power, single-channel, 8-bit digital-to-analog converter (DAC) produced by Texas Instruments. It features a high-speed I2C interface and is designed for applications requiring low power consumption and high precision. The DAC5571 utilizes an I2C-compatible, two-wire serial interface that operates at clock rates up to 3.4 Mbps and supports up to two DAC5571s on the same data bus. The device includes an on-chip precision output amplifier that allows for rail-to-rail output swing, making it suitable for a variety of applications including process control, data acquisition systems, and portable instrumentation.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 8 Bits | |
| Power Supply | +2.7 V to +5.5 V | V |
| Current Consumption (Normal Operation) | 125 µA @ 3 V, 155 µA @ 5 V | µA |
| Current Consumption (Power-Down Mode) | 50 nA @ 5 V | nA |
| Update Rate | 188 KSPS | |
| I2C Interface Speed | Up to 3.4 Mbps | |
| Output Voltage Range | 0 V to VDD | V |
| Operating Temperature | -40°C to 105°C | °C |
| Package Type | 6 Lead SOT 23 |
Key Features
- Micropower operation: 125 µA @ 3 V and less than 0.7 mW at VDD = 5 V.
- Fast update rate: 188 KSPS.
- Power-on reset to zero volts.
- I2C interface up to 3.4 Mbps with address support for up to two DAC5571s.
- On-chip output buffer amplifier with rail-to-rail operation.
- Double-buffered input register.
- Power-down feature reducing current consumption to 50 nA at 5 V.
- Small 6 lead SOT 23 package.
- Operation from -40°C to 105°C.
Applications
- Process Control.
- Data Acquisition Systems.
- Closed-Loop Servo Control.
- PC Peripherals.
- Portable Instrumentation.
Q & A
- What is the resolution of the DAC5571?
The DAC5571 has an 8-bit resolution.
- What is the power supply range for the DAC5571?
The power supply range is from +2.7 V to +5.5 V.
- What is the current consumption of the DAC5571 in normal operation?
The current consumption is 125 µA @ 3 V and 155 µA @ 5 V.
- How does the power-down feature of the DAC5571 work?
The power-down feature reduces the current consumption to 50 nA at 5 V, accessed via the internal control register.
- What is the update rate of the DAC5571?
The update rate is 188 KSPS.
- What type of interface does the DAC5571 use?
The DAC5571 uses an I2C-compatible, two-wire serial interface that operates at clock rates up to 3.4 Mbps.
- What is the output voltage range of the DAC5571?
The output voltage range is from 0 V to VDD.
- What is the operating temperature range of the DAC5571?
The operating temperature range is from -40°C to 105°C.
- What package type is the DAC5571 available in?
The DAC5571 is available in a 6 lead SOT 23 package.
- What are some typical applications of the DAC5571?
Typical applications include process control, data acquisition systems, closed-loop servo control, PC peripherals, and portable instrumentation.
