The DAC8551 is a small, low-power, voltage output, 16-bit digital-to-analog converter (DAC). It is monotonic, provides good linearity, and minimizes undesired code-to-code transient voltages. The DAC8551 uses a versatile 3-wire serial interface that operates at clock rates to 30MHz and is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC8551 requires an external reference voltage to set its output range. The DAC8551 incorporates a power-on-reset circuit that ensures the DAC output powers up at 0V and remains there until a valid write takes place to the device. The DAC8551 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 device in normal operation makes it ideally suited for portable, battery- operated equipment. The power consumption is 0.38mW at 2.7V, reducing to less than 1µW in power-down mode.

The DAC8551 is available in an MSOP-8 package.

For additional flexibilty, see the DAC8550, a 2's complement-input counterpart to the DAC8551.

• Relative Accuracy: 3LSB
• Glitch Energy: 0.1nV-s
• MicroPower Operation: 140µA at 2.7V
• Power-On Reset to Zero
• Power Supply: +2.7V to +5.5V
• 16-Bit Monotonic Over Temperature
• Settling Time: 10µs to ±0.003% FSR
• Low-Power Serial Interface with Schmitt-Triggered Inputs
• On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
• Power-Down Capability
• Binary Input
• SYNC Interrupt Facility
• Drop-In Compatible With DAC8531/01and DAC8550 (2's Complement Input)
• Available in a Tiny MSOP-8 Package
• APPLICATIONS
  • Process Control
  • Data Acquisition Systems
  • Closed-Loop Servo-Control
  • PC Peripherals
  • Portable Instrumentation
  • Programmable Attenuation

SPI, QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor. All other trademarks are the property of their respective owners.