參數(shù)資料
型號(hào): DAC1221E
廠(chǎng)商: TEXAS INSTRUMENTS INC
元件分類(lèi): DAC
英文描述: SERIAL INPUT LOADING, 1800 us SETTLING TIME, 16-BIT DAC, PDSO16
封裝: SSOP-16
文件頁(yè)數(shù): 1/16頁(yè)
文件大小: 154K
代理商: DAC1221E
1
DAC1221
16-Bit Low Power
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q 16-BIT MONOTONICITY GUARANTEED
OVER –40
°C TO +85°C
q LOW POWER: 1.2mW
q VOLTAGE OUTPUT
q SETTLING TIME: 2ms to 0.012%
q MAX LINEARITY ERROR: 30ppm
q ON-CHIP CALIBRATION
APPLICATIONS
q PROCESS CONTROL
q ATE PIN ELECTRONICS
q CLOSED-LOOP SERVO-CONTROL
q SMART TRANSMITTERS
q PORTABLE INSTRUMENTS
q VCO CONTROL
DESCRIPTION
The DAC1221 is a Digital-to-Analog (D/A) converter
offering 16-bit monotonic performance over the speci-
fied temperature range. It utilizes delta-sigma technol-
ogy to achieve inherently linear performance in a
small package at very low power. The output range is
two times the external reference voltage. On-chip
calibration circuitry dramatically reduces offset and
gain errors.
The DAC1221 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 DAC1221 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 DAC1221 is available in a SSOP-16 package.
1999 Burr-Brown Corporation
PDS-1519B
Printed in U.S.A. May, 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
DAC1221
For most current data sheet and other product
information, visit www.burr-brown.com
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
C
2A C2B C3
C
1
X
IN
X
OUT
V
REF
CS
DV
DD
DGND
AV
DD
AGND
SDIO
V
OUT
SCLK
SBAS113
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