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20-Bit Delta-Sigma Low Power Digital-To-Analog Converter


Package | PIN: DBQ | 16
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $17.44
10-24 $16.21
25-99 $15.65
100-249 $13.67
250-499 $13.01
500-749 $11.97
750-999 $10.75
1000+ $10.71


  • 20-Bit Monotonicity Ensured Over –40°C to +85°C
  • Low Power: 2.5mW
  • Voltage Output
  • Settling Time: 2ms to 0.012%
  • Maximum Linearity Error: ±0.0015%
  • On-Chip Calibration
    • Process Control
    • ATE Pin Electronics
    • Closed-Loop Servo Control
    • Smart Transmitters
    • Portable Instruments

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Texas Instruments  DAC1220E

The DAC1220 is a 20-bit digital-to-analog (D/A) converter offering 20-bit monotonic performance over the specified temperature range. It utilizes delta-sigma technology to achieve inherently linear performance in a small package at very low power. The resolution of the device can be programmed to 20 bits for Full-Scale, settling to 0.003% within 15ms typical, or 16 bits for Full-Scale, settling to 0.012% within 2ms max. The output range is two times the external reference voltage. On-chip calibration circuitry dramatically reduces low offset and gain errors.

The DAC1220 features a synchronous serial interface; in single-converter applications, the serial interface can be accomplished with just two wires, allowing low-cost isolation. For multiple converters, a CS signal allows for selection of the appropriate D/A converter.

The DAC1220 has been designed for closed-loop control applications in the industrial process control market and high-resolution applications in the test and measurement market. It is also ideal for remote applications, battery-powered instruments, and isolated systems. The DAC1220 is available in an SSOP-16 package.