ADS7817
器件描述:12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
文件大小:172.16KB,共15页
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器件资料摘要:
ADS7817
DESCRIPTION
The ADS7817 is a 12-bit, 200kHz sampling analog-
to-digital converter (A/D) that features a high imped-
ance fully differential analog input. The reference
voltage can be varied from 100mV to 2.5V, with a
corresponding input-referred resolution between 49µV
and 1.22mV.
The differential input, low power, automatic power
down, and small size make the ADS7817 ideal for
direct connection to transducers in battery operated
systems, remote data acquisition, or multi-channel
applications. The ADS7817 is available in a plastic
mini-DIP-8, an SOIC-8, or an MSOP-8 package.
12-Bit Differential Input Micro Power Sampling
ANALOG-TO-DIGITAL CONVERTER
®
©
1997 Burr-Brown Corporation PDS-1369B Printed in U.S.A., May, 2000
FEATURES
l BIPOLAR INPUT RANGE
l TRUE DIFFERENTIAL INPUT
l 200kHz SAMPLING RATE
l MICRO POWER: 2.3mW at 200kHz
l POWER DOWN: 3µA Max
l AVAILABLE IN MSOP-8 PACKAGE
l SERIAL INTERFACE
l AC COMMON-MODE REJECTION
SAR Control
Serial
Interface
D
OUT
ComparatorS/H Amp
CS/SHDN
DCLOCK
+In
V
REF
–In
CDAC
OPA658
ADS7817
ADS7817
APPLICATIONS
l TRANSDUCER INTERFACE
l BATTERY OPERATED SYSTEMS
l REMOTE DATA ACQUISITION
l ISOLATED DATA ACQUISITION
l AC MOTOR CONTROL
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
For most current data sheet and other product
information, visit www.burr-brown.com