®
ADS
¤
ADS7852
785
2
For most current data sheet and other product
information, visit www.burr-brown.com
12-Bit, 8-Channel, Parallel Output
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q
2.5V INTERNAL REFERENCE
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8 INPUT CHANNELS
q
500kHz SAMPLING RATE
q
SINGLE 5V SUPPLY
q
±
1LSB: INL, DNL
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GUARANTEED NO MISSING CODES
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70dB SINAD
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LOW POWER: 13mW
q
TQFP-32 PACKAGE
DESCRIPTION
The ADS7852 is an 8-channel, 12-bit analog-to-digi-
tal converter (A/D) complete with sample-and-hold,
internal 2.5V reference and a full 12-bit parallel output
interface. Typical power dissipation is 13mW at at
500kHz throughput rate. The ADS7852 features both
a nap mode and a sleep mode further reducing the
power consumption to 2mW. The input range is from
0V to twice the reference voltage. The reference volt-
age can be overdriven by an external voltage.
The ADS7852 is ideal for multi-channel applications
where low power and small size are critical. Medical
instrumentation, high-speed data acquisition and labo-
ratory equipment are just a few of the applications that
would take advantage of the special features offered
by the ADS7852. The ADS7852 is available in an
TQFP-32 package and is fully specified and guaran-
teed over the –40°C to +85°C temperature range.
APPLICATIONS
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DATA ACQUISITION
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TEST AND MEASUREMENT
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INDUSTRIAL PROCESS CONTROL
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MEDICAL INSTRUMENTS
A0
A1
A2
ADS7852
SAR
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
CDAC
8-Channel
MUX
3-State
Parallel
Data Bus
Output
Latches
and
3-State
Drivers
CLK
BUSY
WR
CS
RD
Comparator
Buffer
10kΩ
V
REF
Internal
+2.5V Ref
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
®
©
1998 Burr-Brown Corporation
1
PDS-1509C
ADS7852
May, 2000
Printed in U.S.A.
BURR-BROWN [ BURR-BROWN CORPORATION ]
