参数资料
型号: ADS7825UG4
厂商: Texas Instruments
文件页数: 1/21页
文件大小: 0K
描述: IC 16BIT 4-CHAN MUX ADC 28-SOIC
产品培训模块: Data Converter Basics
标准包装: 20
位数: 16
采样率(每秒): 40k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 50mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 管件
输入数目和类型: 4 个单端,双极
1
ADS7825
CDAC
6k
Internal
+2.5V Ref
Clock
BUSY
DATACLK
SDATA
D7-D0
BYTE
R/C
CS
PWRD
Successive Approximation Register
and Control Logic
Serial
Data
Out
or
Parallel
Data
Out
Comparator
Buffer
Continuous Conversion
Channel
REF
CAP
A0
CONTC
A1
40k
AIN
2
40k
AIN
1
40k
AIN
0
40k
AIN
3
20k
8k
20k
8k
20k
8k
20k
8k
8
4 Channel, 16-Bit Sampling CMOS A/D Converter
FEATURES
q 25
s max SAMPLING AND CONVERSION
q SINGLE +5V SUPPLY OPERATION
q PIN-COMPATIBLE WITH 12-BIT ADS7824
q PARALLEL AND SERIAL DATA OUTPUT
q 28-PIN 0.3" PLASTIC DIP AND SOIC
q
±2.0 LSB max INL
q 50mW max POWER DISSIPATION
q 50
W POWER DOWN MODE
q
±10V INPUT RANGE, FOUR CHANNEL
MULTIPLEXER
q CONTINUOUS CONVERSION MODE
ADS7825
DESCRIPTION
The ADS7825 can acquire and convert 16 bits to
within
±2.0 LSB in 25s max while consuming only
50mW max. Laser-trimmed scaling resistors provide
the standard industrial
±10V input range and channel-
to-channel matching of
±0.1%. The ADS7825 is a
low-power 16-bit sampling A/D with a four channel
input multiplexer, S/H, clock, reference, and a
parallel/serial microprocessor interface. It can be con-
figured in a continuous conversion mode to sequen-
tially digitize all four channels. The 28-pin ADS7825
is available in a plastic 0.3" DIP and in a SOIC, both
fully specified for operation over the industrial –40
°C
to +85
°C range.
ADS7825
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/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
www.burr-brown.com/databook/ADS7825.html
1996 Burr-Brown Corporation
PDS-1304B
Printed in U.S.A. October, 1997
SBAS045
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