Analog-to-Digital Converter. ADS7822-Q1 Datasheet

ADS7822-Q1 Converter. Datasheet pdf. Equivalent

Part ADS7822-Q1
Description Analog-to-Digital Converter
Feature ADS7822-Q1 www.ti.com ..............................................................................
Manufacture etcTI
Datasheet
Download ADS7822-Q1 Datasheet

ADS7822-Q1 www.ti.com ..................................... ADS7822-Q1 Datasheet
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ADS7822-Q1
ADS7822-Q1
www.ti.com .................................................................................................................................................................................................. SGLS299 – MARCH 2009
12-BIT 200-kHz MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER
FEATURES
1
2 Qualified for Automotive Applications
200-kHz Sampling Rate
Micropower:
1.6 mW at 200 kHz
0.54 mW at 75 kHz
0.06 mW at 7.5 kHz
Power-Down Current: 3 µA Max
MSOP-8 Package
Pseudo-Differential Input
Serial Interface
APPLICATIONS
Battery-Operated Systems
Remote Data Acquisition
Isolated Data Acquisition
Simultaneous Sampling, Multichannel Systems
DESCRIPTION
The ADS7822 is a 12-bit sampling analog-to-digital (A/D) converter with ensured specifications over a 2.7-V to
5.25-V supply range. It requires very little power even when operating at the full 200-kHz 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 7.5 kHz.
The ADS7822 also features operation from 2.0 V to 5 V, a synchronous serial interface, and a pseudo-differential
input. The reference voltage can be set to any level within the range of 50 mV 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 multichannel systems, and isolated data acquisition. The
ADS7822 is available in an MSOP-8 package.
VREF
+In
-In
S/H Amp
SAR
CDAC
Comparator
Control
Serial
Interface
DOUT
DCLOCK
CS/SHDN
1
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.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated



ADS7822-Q1
ADS7822-Q1
SGLS299 – MARCH 2009 .................................................................................................................................................................................................. www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TA
–40°C to 85°C
ORDERING INFORMATION(1)
PACKAGE (2)
ORDERABLE PART NUMBER
MSOP – DGK
Reel of 2500
ADS7822IDGKRQ1
TOP-SIDE MARKING
OCV
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
VCC Supply voltage
VIN Input voltage
TC
TJ
TSTG
VREF
Case temperature
Junction temperature
Storage temperature
External reference voltage
Analog inputs
Logic inputs
6V
–0.3 V to VCC + 0.3 V
–0.3 V to 6 V
100°C
150°C
125°C
5.5 V
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability.
2
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): ADS7822-Q1





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