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

APPLICATIONS

PROCESS CONTROL

DATA ACQUISITION SYSTEMS

CLOSED-LOOP SERVO-CONTROL

PC PERIPHERALS

PORTABLE INSTRUMENTATION

PROGRAMMABLE ATTENUATION

DESCRIPTION

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.