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ADS8325
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SBAS226C–MARCH 2002–REVISED AUGUST 2007
16-Bit, High-Speed, 2.7V to 5.5V microPower Sampling
ANALOG-TO-DIGITAL CONVERTER
1
FEATURES
DESCRIPTION
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•
16-Bits No Missing Codes
Very Low Noise: 3LSBPP
Excellent Linearity: ±1.5LSB typ
microPower:
The ADS8325 is a 16-bit, sampling, Analog-to-Digital
(A/D) converter specified for a supply voltage range
from 2.7V to 5.5V. It requires very little power, even
when operating at the full 100kHz data rate. At lower
data rates, the high speed of the device enables it to
spend most of its time in the power-down mode. For
example, the average power dissipation is less than
1mW at a 10kHz data rate.
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•
•
–
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4.5mW at 100kHz
1mW at 10kHz
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MSOP-8 and SON-8 Packages (SON Package
Size Same as 3x3 QFN)
The ADS8325 offers excellent linearity and very low
noise and distortion. It also features a synchronous
serial (SPI/SSI compatible) interface and a differential
input. The reference voltage can be set to any level
16-Bit Upgrade to the 12-Bit ADS7816 and
ADS7822
Pin-Compatible With the ADS7816, ADS7822,
ADS7826, ADS7827, ADS7829, and ADS8320
within the range of 2.5V to VDD
.
Low power and small size make the ADS8325 ideal
for portable and battery-operated systems. It is also a
perfect fit for remote data acquisition modules,
simultaneous multichannel systems, and isolated
data acquisition. The ADS8325 is available in
MSOP-8 and SON-8 packages. The SON package
size is the same as a 3x3 QFN package.
Serial (SPI™/SSI) Interfaces
APPLICATIONS
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Battery-Operated Systems
Remote Data Acquisition
Isolated Data Acquisition
Simultaneous Sampling, Multi-Channel
Systems
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Industrial Controls
Robotics
Vibration Analysis
SAR
REF
ADS8325
DOUT
+IN
CDAC
Serial
Interface
DCLOCK
CS/SHDN
-IN
S/H Amp
Comparator
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.
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3
SPI is a trademark of Motorola, Inc.
All other trademarks are the property of their respective owners.
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 © 2002–2007, Texas Instruments Incorporated