TI DAC8532IDGKR

The DAC8532 is a dual 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 VDD = 5V. The DAC8532 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 DAC8532 provides a flexible 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 device in normal operation makes it ideally suited to portable battery-operated equipment and other low-power applications. The power consumption is 2.5mW at 5V, reducing to 1μW in powerdown mode. The DAC8532 is available in a MSOP-8 package with a specified operating temperature range of -40°C to +105°C.

• microPOWER OPERATION: 500μa at 5V
• POWER-ON RESET TO ZERO-SCALE
• POWER SUPPLY: +2.78 to +5.5V
• 16-BIT MONOTONIC OVER TEMPERATURE
• SETTLING TIME: 10μs to ±0.003% FSR
• ULTRA-LOW AC CROSSTALK: –100dB typ
• LOW-POWER SERIAL INTERFACE WITH SCHMITT-TRIGGERED INPUTS
• ON-CHIP OUTPUT BUFFER AMPLIFIER WITH RAIL-TO-RAIL OPERATION
• DOUBLE BUFFERED INPUT ARCHITECTURE
• SIMULTANEOUS OR SEQUENTIAL OUTPUT UPDATE AND POWERDOWN
• TINY MSOP-8 PACKAGE

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