Overview
The DAC7574IDGSR is a low-power, quad-channel, 12-bit digital-to-analog converter (DAC) produced by Texas Instruments. It features a buffered voltage output and an I2C compatible two-wire serial interface. The device is designed for high-speed interface mode, supporting up to 3.4 Mbps, and can address up to four DAC7574s, allowing for a total of 16 channels on the bus. The on-chip precision output amplifier enables rail-to-rail output swing, making it suitable for a variety of applications requiring precise analog output control.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 Bits | |
| Analog Power Supply | +2.7 V to +5.5 V | |
| Operating Temperature Range | -40°C to 105°C | |
| Package Type | 10-lead VSSOP (DGS) | |
| Current Consumption (Normal Operation) | 600 µA at 5 V VDD | |
| Current Consumption (Power-Down Mode) | 200 nA at 5 V | |
| I2C Interface Speed | Up to 3.4 Mbps | |
| Output Voltage Range | 0 to VDD | |
| Output Voltage Settling Time | 8 µs to 12 µs |
Key Features
- Micropower operation: 600 µA at 5 V VDD
- Power-On Reset to Zero
- On-chip output buffer amplifier with rail-to-rail operation
- Double-buffered input register
- Address support for up to four DAC7574s, allowing for up to 16 channels on the bus
- Synchronous update support for up to 16 channels
- Operation from -40°C to 105°C
- Small 10-lead MSOP package
- Power-down feature reducing current consumption to 200 nA at 5 V
Applications
- Process Control
- Data Acquisition Systems
- Closed-Loop Servo Control
- PC Peripherals
- Portable Instrumentation
Q & A
- What is the resolution of the DAC7574?
The DAC7574 has a resolution of 12 bits.
- What is the operating temperature range of the DAC7574?
The operating temperature range is from -40°C to 105°C.
- What type of interface does the DAC7574 use?
The DAC7574 uses an I2C compatible two-wire serial interface.
- How many channels can be supported by multiple DAC7574s on the same bus?
Up to four DAC7574s can be addressed, supporting a total of 16 channels on the bus.
- What is the power consumption of the DAC7574 in normal operation?
The power consumption is less than 3 mW at VDD = 5 V.
- What is the power consumption of the DAC7574 in power-down mode?
The power consumption reduces to 1 µW in power-down mode.
- Does the DAC7574 have a power-on reset feature?
- What is the output voltage range of the DAC7574?
The output voltage range is from 0 to VDD.
- What is the typical output voltage settling time of the DAC7574?
The typical output voltage settling time is 8 µs to 12 µs.
- In what package is the DAC7574 available?
The DAC7574 is available in a 10-lead VSSOP (DGS) package.
