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DAC1220E Datasheet

  • DAC1220E

  • 20-Bit Low Power DIGITAL-TO-ANALOG CONVERTER

  • 14頁(yè)

  • BB

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廬
DAC
1
220
DAC1220
For most current data sheet and other product
information, visit www.burr-brown.com
20-Bit Low Power
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q
20-BIT MONOTONICITY GUARANTEED
OVER 鈥?0
擄
C to +85
擄
C
q
LOW POWER: 2.5mW
q
VOLTAGE OUTPUT
q
SETTLING TIME: 2ms to 0.012%
q
MAX LINEARITY ERROR:
鹵
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.
X
IN
X
OUT
V
REF
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.
AV
DD
AGND
Clock Generator
Microcontroller
Instruction Register
Command Register
Data Register
Offset Register
Full-Scale Register
Second-Order
鈭嗏垜
Modulator
First-Order
Switched
Capacitor Filter
Second-Order
Continuous
Time Post Filter
C
1
V
OUT
C
2
SDIO
SCLK
Serial
Interface
Modulator Control
CS
DV
DD
DGND
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111
Twx: 910-952-1111 鈥?Internet: http://www.burr-brown.com/ 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
廬
漏 1998 Burr-Brown Corporation
PDS-1418B
1
Printed in U.S.A. April , 2000

DAC1220E 產(chǎn)品屬性

  • Data Converter Basics

  • 75

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器

  • -

  • 1.8ms

  • 20

  • 串行

  • 1

  • 模擬和數(shù)字

  • 3.5mW

  • -40°C ~ 85°C

  • 表面貼裝

  • 16-SSOP（0.154"，3.90mm 寬）

  • 16-SSOP/QSOP

  • 管件

  • 1 電壓，單極

  • 500

  • 296-17265-ND - MODULE EVALUATION FOR DAC1220

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