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ADS7862 Datasheet(PDF) 1 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part No. ADS7862
Description  Dual 500kHz, 12-Bit, 2 2 Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER
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Maker  BURR-BROWN [Burr-Brown (TI)]
Homepage  http://www.burr-brown.com
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ADS7862 Datasheet(HTML) 1 Page - Burr-Brown (TI)

 
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1
ADS7862
®
Dual 500kHz, 12-Bit, 2 + 2 Channel
Simultaneous Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 4 INPUT CHANNELS
q FULLY DIFFERENTIAL INPUTS
q 2
µs TOTAL THROUGHPUT PER CHANNEL
q GUARANTEED NO MISSING CODES
q PARALLEL INTERFACE
q 1MHz EFFECTIVE SAMPLING RATE
q LOW POWER: 40mW
APPLICATIONS
q MOTOR CONTROL
q MULTI-AXIS POSITIONING SYSTEMS
q 3-PHASE POWER CONTROL
DESCRIPTION
The ADS7862 is a dual 12-bit, 500kHz analog-to-
digital converter (A/D) with 4 fully differential input
channels grouped into two pairs for high speed simulta-
neous signal acquisition. Inputs to the sample-and-hold
amplifiers are fully differential and are maintained dif-
ferential to the input of the A/D converter. This provides
excellent common-mode rejection of 80dB at 50kHz
which is important in high noise environments.
The ADS7862 offers parallel interface and control in-
puts to minimize software overhead. The output data for
each channel is available as a 12-bit word. The ADS7862
is offered in an TQFP-32 package and is full specified
over the –40
°C to +85°C operating range.
®
ADS7862
© 1998 Burr-Brown Corporation
PDS-1475B
Printed in U.S.A. May, 2000
SAR
Interface
Conversion
and
Control
Output
Registers
COMP
CONVST
BUSY
RD
CS
Data Output
12
CLOCK
A0
CDAC
Internal
2.5V
Reference
S/H
Amp
S/H
Amp
CH A0–
CH A0+
REF
IN
CH A1–
CH A1+
SAR
COMP
CDAC
MUX
MUX
CH B0–
CH B0+
CH B1–
CH B1+
REF
OUT
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
ADS7862
¤
For most current data sheet and other product
information, visit www.burr-brown.com


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