DAC7551 12-Bit, Ultralow Glitch, Voltage Output Digital to Analog Converter | TI.com


12-Bit, Ultralow Glitch, Voltage Output Digital to Analog Converter



The DAC7551 is a single-channel, voltage-output digital-to-analog converter (DAC) with exceptional linearity and monotonicity, and a proprietary architecture that minimizes glitch energy. The low-power DAC7551 operates from a single 2.7V to 5.5V supply. The DAC7551 output amplifiers can drive a 2k, 200pF load rail-to-rail with 5µs settling time; the output range is set using an external voltage reference.

The 3-wire serial interface operates at clock rates up to 50MHz and is compatible with SPI™, QSPI™, Microwire™, and DSP interface standards. The parts incorporate a power-on-reset circuit to ensure that the DAC output powers up to 0V and remains there until a valid write cycle to the device takes place. The part contains a power-down feature that reduces the current consumption of the device to under 2µA.

Small size and low-power operation make the DAC7551 ideally suited for battery-operated, portable applications. The power consumption is typically 0.5mW at 5V, 0.23mW at 3V, and reduces to 1µW in power-down mode.

The DAC7551 is available in a 12-lead SON package and is specified over -40°C to +105°C.


  • Relative Accuracy (INL): ±0.35LSB
  • Ultra-Low Glitch Energy: 0.1nV-s
  • Low Power Operation: 100µA at 2.7V
  • Power-On Reset to Zero Scale
  • Power Supply: 2.7V to 5.5V Single Supply
  • Power-Down: 0.05µA at 2.7V
  • 12-Bit Linearity and Monotonicity
  • Rail-to-Rail Voltage Output
  • Settling Time: 5µs (Max)
  • SPI-Compatible Serial Interface with Schmitt-Trigger Input: Up to 50MHz
  • Daisy-Chain Capability
  • Asynchronous Hardware Clear to Zero Scale
  • Specified Temperature Range: -40°C to +105°C
  • Small, 2 x 3 mm, 12-Lead SON Package
    • Portable, Battery-Powered Instruments
    • Digital Gain and Offset Adjustment
    • Programmable Voltage and Current Sources
    • Programmable Attenuators
    • Industrial Process Control

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

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Parametrics Compare all products in Precision DACs (<=10MSPS)

Resolution (Bits)
DAC channels
Output range (Max) (mA/V)
Output range (Min) (mA/V)
Settling Time (µs)
Output type
Reference: type
Operating temperature range (C)
DAC7551 DAC7551-Q1
12     12    
String     String    
1     1    
SPI     SPI    
5.5     5.5    
0     0    
5     5    
Buffered Voltage     Buffered Voltage    
Ext     Ext    
Catalog     Automotive    
-40 to 105     -40 to 105    
Low Power
Low Power