DAC5571

www.ti.com DAC5571 SLAS405A – DECEMBER 2003 – REVISED AUGUST 2005 +2.7 V to +5.5 V, I2C INTERFACE, VOLTAGE OUTPUT, 8-BIT DIGITAL-TO-ANALOG CONVERTER FEATURES Micropower Operation: 125 µA @ 3 V Fast Update Rate: 188 KSPS Power-On Reset to Zero +2.7-V to +5.5-V Power Supply Specified Monotonic by Design I2C™ Interface up to 3.4 Mbps On-Chip Output Buffer Amplifier, Rail-to-Rail Operation Double-Buffered Input Register Address Support for up to Two DAC5571s Small 6 Lead SOT 23 Package Operation From –40°C to 105°C APPLICATIONS Process Control Data Acquistion Systems Closed-Loop Servo Control PC Peripherals Portable Instrumentation VDD GND DESCRIPTION The DAC5571 is a low-power, single-channel, 8-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC5571 utilizes an I2C-compatible, two-wire serial interface that operates at clock rates up to 3.4 Mbps with address support of up to two DAC5571s on the same data bus. The output voltage range of the DAC is 0 V to VDD. The DAC5571 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write to the device takes place. The DAC5571 contains a power-down feature, accessed via the internal control register, that reduces the current consumption of the device to 50 nA at 5 V. The low-power consumption of this part in normal operation makes it ideally suited for po...