ADS8325
A
D
S
8
3
2
5
A
D
S
8
3
2
5
SBAS226A – MARCH 2002 – REVISED JUNE 2003
16-Bit, High-Speed, 2.7V to 5.5V microPower Sampling
ANALOG-TO-DIGITAL CONVERTER
DESCRIPTION
FEATURES
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.
ꢀ 16-BITS NO MISSING CODES
ꢀ VERY LOW NOISE: 3LSBp-p
ꢀ EXCELLENT LINEARITY: ±1.5LSB typ
ꢀ microPOWER: 4.5mW at 100kHz
1mW at 10kHz
ꢀ 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 within the range of 2.5V to
ꢀ 16-BIT UPGRADE TO THE 12-BIT ADS7816
AND ADS7822
ꢀ PIN-COMPATIBLE WITH THE ADS7816,
ADS7822, ADS7826, ADS7827, ADS7829, AND
ADS8320
ꢀ SERIAL (SPI™/SSI) INTERFACE
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 multi-
channel 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.
APPLICATIONS
ꢀ BATTERY-OPERATED SYSTEMS
ꢀ REMOTE DATA ACQUISITION
ꢀ ISOLATED DATA ACQUISITION
ꢀ SIMULTANEOUS SAMPLING, MULTI-CHANNEL
SYSTEMS
ꢀ INDUSTRIAL CONTROLS
ꢀ ROBOTICS
ꢀ VIBRATION ANALYSIS
SAR
REF
ADS8325
DOUT
+IN
CDAC
Serial
Interface
DCLOCK
CS/SHDN
–IN
S/H Amp
Comparator
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright © 2002-2003, Texas Instruments Incorporated
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.
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