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ADS7822UG4 bảng dữ liệu(PDF) 1 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER
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Trang chủ  http://www.ti.com
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ADS7822
DESCRIPTION
The ADS7822 is a 12-bit sampling analog-to-digital (A/D)
converter with ensured specifications over a 2.7V to 5.25V
supply range. It requires very little power even when oper-
ating at the full 75kHz rate. At lower conversion rates, the
high speed of the device enables it to spend most of its time
in the power-down mode—the power dissipation is less than
60
µW at 7.5kHz.
The ADS7822 also features operation from 2.0V to 5V, a
synchronous serial interface, and a pseudo-differential input.
The reference voltage can be set to any level within the
range of 50mV to VCC.
Ultra low power and small size make the ADS7822 ideal for
battery-operated systems. It is also a perfect fit for remote
data acquisition modules, simultaneous multi-channel sys-
tems, and isolated data acquisition. The ADS7822 is avail-
able in a plastic mini-DIP-8, an SOIC-8, or an MSOP-8
package.
12-Bit, High-Speed, 2.7V
microPower Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 75kHz SAMPLING RATE
q MICRO POWER:
0.54mW at 75kHz
0.06mW at 7.5kHz
q POWER DOWN: 3
µA max
q MINI-DIP-8, SOIC-8, AND MSOP-8
q PSEUDO-DIFFERENTIAL INPUT
q SERIAL INTERFACE
SAR
Control
Serial
Interface
D
OUT
Comparator
S/H Amp
CS/SHDN
DCLOCK
+In
V
REF
–In
CDAC
APPLICATIONS
q BATTERY-OPERATED SYSTEMS
q REMOTE DATA ACQUISITION
q ISOLATED DATA ACQUISITION
q SIMULTANEOUS SAMPLING,
MULTI-CHANNEL SYSTEMS
OPA658
ADS7
822
ADS7
822
SBAS062A – JANUARY 1996 – REVISED MARCH 2005
www.ti.com
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1996-2005, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.


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ADS7822UG4 TI1-ADS7822UG4 Datasheet
1Mb / 28P
[Old version datasheet]   ANALOG-TO-DIGITAL CONVERTER
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