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DAC1220E

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

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DAC1220E General Description

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.

dac1220e dac1220e

Key Features

  • 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
  • APPLICATIONS
    • Process Control
    • ATE Pin Electronics
    • Closed-Loop Servo Control
    • Smart Transmitters
    • Portable Instruments

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dac1220e

Specifications

Resolution (Bits) 20 Number of DAC channels 1
Interface type SPI Output type Unbuffered Voltage
Settling time (µs) 2000 Features On-chip Offset and Gain Calibration
Reference type Ext Architecture Delta-Sigma
Rating Catalog Output range (max) (mA/V) 5.5
Output range (min) (mA/V) 0 Sample/update rate (Msps) 0.0005
Power consumption (typ) (mW) 2.5 Operating temperature range (°C) -40 to 85
feature-resolution 20bit feature-maximum-single-supply-voltage-v
feature-minimum-dual-supply-voltage-v feature-maximum-dual-supply-voltage-v
feature-power-supply-type Analog and Digital feature-packaging Tube
feature-minimum-single-supply-voltage-v 4.75 feature-rad-hard
feature-pin-count 16 feature-cecc-qualified No
feature-esd-protection Yes feature-escc-qualified
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc Yes feature-svhc-exceeds-threshold No

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Ratings and Reviews

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I
I**a 12/02/2022

In the complete set-a loop and a connector on the board, pinning the rightNot yet checked

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