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Burr-Brown Corporation - 10-Channel/ 12-Bit DATA ACQUISITION SYSTEM

Numéro de référence ADS7833
Description 10-Channel/ 12-Bit DATA ACQUISITION SYSTEM
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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ADS7833 fiche technique
® ADS7833
10-Channel, 12-Bit
DATA ACQUISITION SYSTEM
FEATURES
q 3 SIMULTANEOUS SAMPLED CHANNELS
q 3 SYNCHRONIZED 12-BIT ADCs
q 6.6µs THROUGHPUT RATE
q FULLY DIFFERENTIAL MUX INPUTS
q DIGITALLY SELECTABLE INPUT RANGES
q ±5V POWER SUPPLIES
q SERIAL DIGITAL INPUT/OUTPUTS
q 2 SIMULTANEOUS SAMPLED AUXILIARY
CHANNELS
q DIRECT INTERFACE TO MOTOROLA’S
DSP56004/7
DESCRIPTION
The ADS7833 consists of three 12-bit analog-to-digi-
tal converters preceded by three simultaneously oper-
ating sample-hold amplifiers, and multiplexers for 10
differential inputs. The ADCs have simultaneous se-
rial outputs for high speed data transfer and data
processing.
The ADS7833 also offers a programmable gain ampli-
fier with programmable gains of 1.0V/V, 1.25V/V,
2.5V/V, and 5.0V/V. Channel selection and gain se-
lection are selectable through the serial input control
word. The high through put rate is maintained by
simultaneously clocking in the 13-bit input control
word for the next conversion while the present conver-
sions are clocked out.
The part also contains an 8-bit digital-to-analog con-
verter whose digital input is supplied as part of the
input control word.
APPLICATIONS
q AC MOTOR SPEED CONTROLS
q THREE PHASE POWER CONTROL
q UNINTERRUPTABLE POWER SUPPLIES
q VIBRATION ANALYSIS
q PC DATA ACQUISITION
q MEDICAL INSTRUMENTATION
V1-1
V1-2
V1-3
V2-1
V2-2
V2-3
V3-1
V3-2
V3-3
V3-4
2
2
2
2
2
2
2
2
2
2
MUX1
MUX2
MUX3
CAP
2.5V
Ref
SH1 PGA1
ADC1
12-Bit
Serial Out1
SH2 PGA2
ADC2
12-Bit
Serial Out2
SH3 PGA3
ADC3
12-Bit
Control
Logic
Input Select
Gain Select
Input Setup
Register
DAC
DAC
8-Bit
Serial Out3
Serial IN
Voltage Out
Clock
Convert
Busy
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
©1994 Burr-Brown Corporation
PDS-11235C
ADPrSinte7d8in3U3.S.A. May, 1997
®

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