FEATURES
· Micropower Operation: 600 µA at 5 V VDD
· Power-On Reset to Zero
· +2.7 V to +5.5 V Analog Power Supply
· 12-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 DAC7574s
· Synchronous Update Support for up to 16
Channels
· Operation From -40°C to 105°C
· Small 10 Lead MSOP Package

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

DESCRIPTION
The DAC7574 is a low-power, quad channel, 12-bit
buffered voltage output DAC. Its on-chip precision out-
put amplifier allows rail-to-rail output swing to be
achieved. The DAC7574 utilizes an I2C compatible two
wire serial interface supporting high-speed interface
mode with address support of up to four DAC7574s for
a total of 16 channels on the bus.
The DAC7574 uses VDD and GND to set the output
range of the DAC. The DAC7574 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 DAC7574 contains a power-down feature, accessed via the internal control
register, that reduces the current consumption of the
device to 200 nA at 5 V.
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 = 5 V reducing to 1 µWin power-down
mode.
The DAC7574 is available in a 10-leadMSOP package.