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Numéro de référence | ADS7825 | ||
Description | 4 Channel/ 16-Bit Sampling CMOS A/D Converter | ||
Fabricant | Burr-Brown Corporation | ||
Logo | |||
1 Page
®
ADS7825
ADS7825
ADS7825
www.burr-brown.com/databook/ADS7825.html
4 Channel, 16-Bit Sampling CMOS A/D Converter
FEATURES
q 25µs max SAMPLING AND CONVERSION
q SINGLE +5V SUPPLY OPERATION
q PIN-COMPATIBLE WITH 12-BIT ADS7824
q PARALLEL AND SERIAL DATA OUTPUT
q 28-PIN 0.3" PLASTIC DIP AND SOIC
q ±2.0 LSB max INL
q 50mW max POWER DISSIPATION
q 50µW POWER DOWN MODE
q ±10V INPUT RANGE, FOUR CHANNEL
MULTIPLEXER
q CONTINUOUS CONVERSION MODE
DESCRIPTION
The ADS7825 can acquire and convert 16 bits to
within ±2.0 LSB in 25µs max while consuming only
50mW max. Laser-trimmed scaling resistors provide
the standard industrial ±10V input range and channel-
to-channel matching of ±0.1%. The ADS7825 is a
low-power 16-bit sampling A/D with a four channel
input multiplexer, S/H, clock, reference, and a
parallel/serial microprocessor interface. It can be con-
figured in a continuous conversion mode to sequen-
tially digitize all four channels. The 28-pin ADS7825
is available in a plastic 0.3" DIP and in a SOIC, both
fully specified for operation over the industrial –40°C
to +85°C range.
AIN0
AIN1
AIN2
AIN3
40kΩ
20kΩ
40kΩ
20kΩ
40kΩ
20kΩ
40kΩ
20kΩ
Continuous Conversion
Channel
CONTC
A0 A1
R/C
Clock
8kΩ
Successive Approximation Register
and Control Logic
CS
PWRD
CDAC
8kΩ
8kΩ
8kΩ
CAP
REF
Buffer
6kΩ
Internal
+2.5V Ref
Comparator
Serial
Data
Out
or
Parallel
Data
Out
8
BUSY
DATACLK
SDATA
D7-D0
BYTE
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
©1996 Burr-Brown Corporation
PDS-11304B
APriDnteSd in7U8.S2.A5. October, 1997
®
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Pages | Pages 16 | ||
Télécharger | [ ADS7825 ] |
No | Description détaillée | Fabricant |
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