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The RT9403D/E/F/G is a high precision reference voltage generating console consisting of three I2C programmable DACs. Each DAC output voltage is controlled by 7 digital bits that are programmed by the I2C interface. The RT9403D/E/F/G features adjustable output slew rate, low switching glitch and adequate driving capability. The RT9403D/E/F/G is available in SOT-23-8 package.

Applications

  • Power Supply Adjustment for Motherboard and Graphic Card
  • Low Voltage, High Accuracy Reference Voltage Circuit
Key Spec.
RT9403D RT9403E RT9403F RT9403G
Status Active Active Active Active
Input Type I2C I2C I2C I2C
Input Bits 7 7 7 7
Vs (typ) (V) 5 5 5 5
Iq (typ) (mA) 0.65 0.65 0.65 0.65
DAC Resolution (mV) 25 25 25 25
Number of Outputs (V) 3 3 3 3
Vout (min) (V) 0.6 0.6 0.6 0.6
Vout (max) (V) 3.375 3.375 3.375 3.375
Package Type SOT-28 SOT-28 SOT-28 SOT-28
Features
  • 5V Supply Voltage
  • Provide 3 Precise Voltage DACs
  • I2C Programmable 128-Steps Output Voltage
  • Output Range and Resolution 
       ► DAC1 & DAC2 : 0.6V to 2.1875V, 12.5mV/Step
       ► DAC3 : 1.2V to 3.375V, 12.5mV (or 25mV)/Step for Different Segments
  • High Output Accuracy Up to 1% (VOUT ≥1V)
  • Low External Component Count
  • Small Footprint SOT-23-8 Package
  • RoHS Compliant and Halogen Free
Datasheet
TitleLast UpdateDownload
I2C Programmable High Precision Reference Voltage Generator2015/04/29
Please confirm with our distributor or sales representative for actual stock status.
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