VECANA01_13 Datasheet, PDF (1/17 Pages) Texas Instruments – 10-Channel, 12-Bit DATA ACQUISITION SYSTEM

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VECANA01
VECANA01
10-Channel, 12-Bit
DATA ACQUISITION SYSTEM
FEATURES
q 10 FULLY DIFFERENTIAL INPUTS
q 5 SIMULTANEOUS SAMPLED CHANNELS
PLUS 2 SYNCHRONIZED SAMPLING
CHANNELS
q 3 SYNCHRONIZED 12-BIT ADCs
APPLICATIONS
q AC MOTOR SPEED CONTROLS
q THREE PHASE POWER CONTROL
q UNINTERRUPTABLE POWER SUPPLIES
q VIBRATION ANALYSIS
q 12.8µs THROUGHPUT RATE
q DIGITALLY SELECTABLE INPUT RANGES
q ±5V POWER SUPPLIES
q SERIAL DIGITAL INPUT/OUTPUTS
q 7 SIGN AND 3 DIGITALLY
PROGRAMMABLE WINDOW COMPARATOR
2
IUP/N
2
A1P/N
2
A2P/N
2
IVP/N
MUX₁
2
DESCRIPTION
B1P/N
2
B2P/N
The VECANA01 consists of three 12-bit analog-to-
MUX₂
2
digital converters preceded by five simultaneously
IWP/N
2
operating sample-hold amplifiers, and multiplexers
AN1P/N
2
for 10 differential inputs. The ADCs have simulta-
AN2P/N
2
neous serial outputs for high speed data transfer and ^AN3P/N
MUX₃
data processing.
The VECANA01 also offers a programmable gain am-
2.5V
plifier with programmable gains of 1.0V/V, 1.25V/V,
Ref
2.5V/V, and 5.0V/V. Channel selection and gain selec-
REFOUT
tion are selectable through the serial input control word.
The high through put rate is maintained by simulta-
neously clocking in the 13-bit input control word for the
7
next conversion while the present conversions are
clocked out.
SH₁
PGA₁
ADC₁
12-Bit
ADOUT1
SH₂
PGA₂
ADC₂
12-Bit
ADOUT2
SH₃
PGA₃
ADC₃
12-Bit
Control
Logic
Input Select
Gain Select
Input Setup
Register
DAC
DAC
8-Bit
7
ADOUT3
ADIN
DAOUT
ADCLK
ADCONV
ADBUSY
COMP
The part also contains an 8-bit digital-to-analog con-
verter whose digital input is supplied as part of the
input control word.
3
ILIM
DAIN
Copyright © 2000, Texas Instruments Incorporated
SBAS155
Printed in U.S.A. October, 2000