TI DAC5574IDGS

The DAC5574 is a low-power, quad channel, 8-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC5574 utilizes an I²C compatible two wire serial interface supporting high-speed interface mode with address support of up to four DAC5574s for a total of 16 channels on the bus. The DAC5574 uses VDD and GND to set the output range of the DAC. The DAC5574 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write takes place to the device. The DAC5574 contains a per-channel power-down feature, accessed via the internal control register, reducing the current consumption of the device to 200 nA at 5V. The low power consumption of this part in normal operation makes it ideally suited to portable battery operated equipment. The power consumption is less than 3mW at VDD = 5V reducing to 1 μW in power-down mode.

• Micropower Operation: 500 μa at 3 V VDD
• Fast Update Rate: 188 kSPS
• Per-channel Power-down Capability
• Power-On Reset to Zero
• 2.7-V to 5.5-V Analog Power Supply
• 8-bit Monotonic
• I²C Interface Up to 3.4 Mbps
• Data Transmit Capability
• On-Chip Output Buffer Amplifier, Rail-to-Rail Operation
• Double-Buffered Input Register
• Address Support for up to Four DAC5574s
• Synchronous Update Support for up to 16 Channels
• Operation From -40°C to 105°C
• Small 10 Lead MSOP Package

• Process Control
• Data Acquisition Systems
• Closed-Loop Servo Control
• PC Peripherals
• Portable Instrumentation