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DAC1220 Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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DAC1220 Datasheet(HTML) 1 Page - Burr-Brown (TI) |
1 / 14 page 1 ® DAC1220 ® 20-Bit Low Power DIGITAL-TO-ANALOG CONVERTER FEATURES q 20-BIT MONOTONICITY GUARANTEED OVER –40 °C to +85°C q LOW POWER: 2.5mW q VOLTAGE OUTPUT q SETTLING TIME: 2ms to 0.012% q MAX LINEARITY ERROR: ±0.0015% q ON-CHIP CALIBRATION APPLICATIONS q PROCESS CONTROL q ATE PIN ELECTRONICS q CLOSED-LOOP SERVO-CONTROL q SMART TRANSMITTERS q PORTABLE INSTRUMENTS 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 re- duces 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 appli- cations, battery-powered instruments, and isolated sys- tems. The DAC1220 is available in a SSOP-16 package. © 1998 Burr-Brown Corporation PDS-1418B Printed in U.S.A. April , 2000 International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 Clock Generator Serial Interface Second-Order ∆∑ Modulator Instruction Register Command Register Data Register Offset Register Full-Scale Register Microcontroller First-Order Switched Capacitor Filter Second-Order Continuous Time Post Filter Modulator Control AV DD AGND X IN X OUT V REF CS DV DD DGND C 1 C 2 SDIO V OUT SCLK DAC1220 For most current data sheet and other product information, visit www.burr-brown.com |
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