DAC8551 - 16-Bit, Ultralow Glitch, Voltage Output, Digital to Analog Converter

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 transientvoltages. 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 DAC8551incorporates a power-on-reset circuit that ensures the DAC output powers up at 0 V and remainsthere 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 200 nA at5 V.

The low-power consumption of this device in normal operation makes it ideally suited forportable, battery-operated equipment. The power consumption is 0.38 mW at 2.7 V,reducing to less than 1 µW in power‑downmode.

For additional flexibilty, see the DAC8550 (SLAS476), a 2’s complement-input counterpart to the DAC8551.

• Relative Accuracy: 8LSB
• Glitch Energy: 0.1 nV-s
• MicroPower Operation: 140 µA at 2.7 V
• Power-On Reset to Zero
• Power Supply: 2.7 V to 5.5 V
• 16-Bit Monotonic
• Settling Time: 10 µs 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 DAC85x1
  and DAC8550 (2’s Complement Input)

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