The DAC8501 is a low-power, single, 16-bit buffered voltage
output Digital-to-Analog Converter (DAC) optimized for multiplying
operation. Its on-chip precision output amplifier allows
rail-to-rail output swing to be achieved. The DAC8501 uses a
versatile 3-wire serial interface that operates at clock rates up
to 30MHz and is compatible with standard SPI?, QSPI?,
Microwire?, and Digital Signal Processor (DSP) interfaces.
The DAC8501 requires an external reference voltage to set
the output range of the DAC. The DAC8501 incorporates a
power-on reset circuit that ensures that the DAC output
powers up at 0V and remains there until a valid write takes
place to the device. The DAC8501 contains a power-down
feature, accessed over the serial interface, that reduces the
current consumption of the device to 200nA 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 1.2mW at 5V reducing to
1μW in power-down mode.
The DAC8501 is available in an MSOP-8 package.
FEATURES

microPOWER OPERATION: 250μA at 5V

MULTIPLYING-MODE BANDWIDTH: 350kHz

POWER-ON RESET TO ZERO

POWER SUPPLY: +2.7V to +5.5V

ENSURED MONOTONIC BY DESIGN

SETTLING TIME: 10μs to ±0.003% FSR

LOW-POWER SERIAL INTERFACE WITH
SCHMITT-TRIGGERED INPUTS

ON-CHIP OUTPUT BUFFER AMPLIFIER,
RAIL-TO-RAIL OPERATION

SYNC INTERRUPT FACILITY

MSOP-8 PACKAGE
SPI and QSPI are registered trademarks of Motorola.
Microwire is a registered trademark of National Semiconductor.