TI DAC8501E/2K5

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 1uW in power-down mode. The DAC8501 is available in an MSOP-8 package.

• microPOWER OPERATION: 250uA at 5V
• MULTIPLYING-MODE BANDWIDTH: 350kHz
• POWER-ON RESET TO ZERO
• POWER SUPPLY: +2.78 to +5.5V
• ENSURED MONOTONIC BY DESIGN
• SETTLING TIME: 10us to ±0.003% FSR
• LOW-POWER SERIAL INTERFACE WITHSCHMITT-TRIGGERED INPUTS
• ON-CHIP OUTPUT BUFFER AMPLIFIER, RAIL-TO-RAIL OPERATION
• SYNC INTERRUPT FACILITY
• MSOP-8 PACKAGE

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