FEATURES
POWER SUPPLY: +2.7V to +5.5V
microPOWER OPERATION: 950μA at 5V
16-BIT MONOTONIC OVER TEMPERATURE
SETTLING TIME: 10μs to ±0.003% FSR
ULTRA-LOW AC CROSSTALK: –100dB typ
POWER-ON RESET TO ZERO-SCALE
ON-CHIP OUTPUT BUFFER AMPLIFIER WITH
RAIL-TO-RAIL OPERATION
DOUBLE BUFFERED INPUT ARCHITECTURE
SIMULTANEOUS OR SEQUENTIAL OUTPUT
UPDATE AND POWER-DOWN
16 CHANNEL BROADCAST CAPABILITY
SCHMITT-TRIGGERED INPUTS
TSSOP-16 PACKAGE

APPLICATIONS
PORTABLE INSTRUMENTATION
CLOSED-LOOP SERVO-CONTROL
PROCESS CONTROL
DATA ACQUISITION SYSTEMS
PROGRAMMABLE ATTENUATION
PC PERIPHERALS

DESCRIPTION
The DAC8534 is a quad channel, 16-bit Digital-to-Analog
Converter (DAC) offering low-power operation and a flexible
serial host interface. Each on-chip precision output amplifier
allows rail-to-rail output swing to be achieved over the supply
range of 2.7V to 5.5V. The device supports a standard 3-wire
serial interface capable of operating with input data clock
frequencies up to 30MHz for IOVDD = 5V.
The DAC8534 requires an external reference voltage to set
the output range of each DAC channel. Also incorporated
into the device is a power-on reset circuit which ensures that
the DAC outputs power up at zero-scale and remain there
until a valid write takes place. The DAC8534 provides a per
channel power-down feature, accessed over the serial interface,
that reduces the current consumption to 200nA per
channel at 5V.
The low-power consumption of this device in normal operation
makes it ideally suited to portable battery-operated
equipment and other low-power applications. The power
consumption is 5mW at 5V, reducing to 4μW in power-down
mode.
The DAC8534 is available in a TSSOP-16 package with a
specified operating temperature range of –40°C to +105°C.