Overview
The DAC7571IDBVRG4, produced by Texas Instruments, is a low-power, single-channel, 12-bit digital-to-analog converter (DAC) with a voltage output. It features an I2C-compatible two-wire serial interface and operates within a power supply range of +2.7 V to +5.5 V. The device includes an on-chip precision output buffer amplifier that allows for rail-to-rail output swing, making it suitable for a variety of applications requiring precise analog output.
Key Specifications
| Parameter | Conditions | Units | Min | Typ | Max |
|---|---|---|---|---|---|
| Resolution | Bits | 12 | |||
| Relative Accuracy | % of FSR | ±0.195 | |||
| Power Supply | V | 2.7 | 5.5 | ||
| Output Voltage Range | V | 0 | VDD | ||
| Settling Time (Half-Scale) | µs | 8 | 10 | ||
| Slew Rate | V/µs | 1 | |||
| Current Consumption (Normal Operation) | VDD = +3.6 V to +5.5 V | µA | 135 | 200 | |
| Current Consumption (Power-Down Mode) | VDD = +3.6 V to +5.5 V | µA | 0.2 | 1 | |
| Operating Temperature | °C | -40 | 105 |
Key Features
- Micropower operation: 140 µA at 5 V.
- Power-on reset to zero volts.
- I2C interface up to 3.4 Mbps with support for up to two DAC7571s on the same data bus.
- 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 package.
- Operation from -40°C to 105°C.
Applications
The DAC7571IDBVRG4 is ideally suited for various applications due to its low power consumption and precise analog output. Key applications include:
- Portable battery-operated equipment.
- Process control systems.
- Data acquisition systems.
Q & A
- What is the resolution of the DAC7571IDBVRG4?
The DAC7571IDBVRG4 has a resolution of 12 bits. - What is the power supply range for the DAC7571IDBVRG4?
The power supply range is from +2.7 V to +5.5 V. - What type of interface does the DAC7571IDBVRG4 use?
The DAC7571IDBVRG4 uses an I2C-compatible two-wire serial interface. - What is the settling time for the DAC7571IDBVRG4?
The settling time is typically 10 µs for a half-scale change. - Does the DAC7571IDBVRG4 have a power-down feature?
Yes, it has a power-down feature that reduces the current consumption to 50 nA at 5 V. - What is the operating temperature range for the DAC7571IDBVRG4?
The operating temperature range is from -40°C to 105°C. - Can the DAC7571IDBVRG4 drive a capacitive load?
Yes, it can drive a load of 2 kΩ in parallel with 1000 pF to GND. - What is the slew rate of the output amplifier?
The slew rate is 1 V/µs. - Is the DAC7571IDBVRG4 suitable for portable battery-operated equipment?
Yes, due to its low power consumption, it is ideally suited for portable battery-operated equipment. - Does the DAC7571IDBVRG4 support multiple devices on the same I2C bus?
Yes, it supports up to two DAC7571s on the same data bus.
