DAC8550 16-Bit, Ultralow Glitch Voltage Output DAC | TI.com

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16-Bit, Ultralow Glitch Voltage Output DAC



The DAC8550 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 DAC8550 uses a versatile, 3-wire serial interface that operates at clock rates of up to 30 MHz and is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC8550 requires an external reference voltage to set its output range. The DAC8550 incorporates a power-on reset circuit that ensures that the DAC output powers up at midscale and remains there until a valid write takes place to the device. The DAC8550 contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 200 nA at 5 V.

The low-power consumption of this device in normal operation makes it ideal for portable, battery-operated equipment. Power consumption is 0.38 mW at 2.7 V, reducing to less than 1 µW in power-down mode.

The DAC8550 is available in an MSOP-8 package.

For additional flexibilty, see the DAC8551, a binary-coded counterpart to the DAC8550.


  • Relative Accuracy: 8 LSB
  • Glitch Energy: 0.1 nV-s
  • MicroPower Operation: 140 µA at 2.7 V
  • Power-On Reset to Midscale
  • 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 Output Amplifier
  • Power-Down Capability
  • 2’s Complement Input
  • SYNC Interrupt Facility
  • Drop-In Compatible with DAC8531/01 and DAC8551 (Binary Input)
  • Available in a Tiny MSOP-8 Package

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Part number Order Resolution (Bits) Architecture DAC channels Interface Output range (Max) (mA/V) Output range (Min) (mA/V) Settling time (µs) Output type Reference: type Rating Operating temperature range (C) Features
DAC8550 Order now 16     String     1     SPI     5.5     0     10     Buffered Voltage     Ext     Catalog     -40 to 105     Low Power
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