DAC6551-Q1 DAC6551-Q1 Automotive 12-Bit, Ultralow-Glitch, Voltage-Output DAC | TI.com


DAC6551-Q1 Automotive 12-Bit, Ultralow-Glitch, Voltage-Output DAC

DAC6551-Q1 Automotive 12-Bit, Ultralow-Glitch, Voltage-Output DAC - DAC6551-Q1


The DAC8551-Q1 and DAC6551-Q1 are small, low-power, voltage-output, 16- and 12-bit digital-to-analog converters (DACs) qualified for automotive applications. The DACx551-Q1 devices provide good linearity and minimize undesired code-to-code transient voltages. The devices use a versatile 3-wire serial interface that operates at clock rates to 30 MHz and is compatible with standard SPI, QSPI, Microwire, and digital signal-processor (DSP) interfaces.

The DACx551-Q1 devices require an external reference voltage to set the output range. The devices incorporate a power-on-reset circuit that ensures the DAC output powers up at 0 V and remains there until a valid write to the device takes place. The devices contain a power-down feature, accessed over the serial interface, that reduces the current consumption to 800 nA at 5 V.

The DACx551-Q1 devices power consumption is only 800 µW at 5 V, reducing to less than 4 µW in power-down mode. The DACx551-Q1 devices are available in a VSSOP-8 package.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Relative Accuracy:
    • DAC8551-Q1 (16-Bit): 4 LSB INL
    • DAC6551-Q1 (12-Bit): 0.3 LSB INL
  • Ultralow Glitch Impulse: 0.1 nV-s
  • Settling Time: 8 µs to ±0.003% FSR
  • Power Supply: 3 V to 5.5 V
  • Power-On Reset to Zero Scale
  • MicroPower Operation: 160 µA at 5 V
  • 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
  • Available in a Tiny VSSOP-8 Package

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

Resolution (Bits)
DAC Architecture
DAC Channels
Output Range (Max) (mA/V)
Output Range (Min) (mA/V)
Settling Time (µs)
Output Type
Reference: Type
Operating Temperature Range (C)
DAC6551-Q1 DAC8551-Q1
12     16    
String     String    
1     1    
SPI     SPI    
5.5     5.5    
0     0    
8     8    
Buffered Voltage     Buffered Voltage    
Ext     Ext    
Automotive     Automotive    
-40 to 125     -40 to 125    
N/A     N/A    

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