ADS8320-HT
www.ti.com
SBAS521A –DECEMBER 2010–REVISED APRIL 2012
16-BIT, HIGH-SPEED, 2.7-V TO 5-V, MICROPOWER SAMPLING
ANALOG-TO-DIGITAL CONVERTER
Check for Samples: ADS8320-HT
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FEATURES
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
2
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100-kHz Sampling Rate
Micropower:
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Controlled Baseline
One Assembly/Test Site
One Fabrication Site
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3.8 mW at 100 kHz and 2.7 V
0.3 mW at 10 kHz and 2.7 V
Available in Extreme (–55°C/210°C)
Temperature Range(1)
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Power Down: 6 µA max
8-Pin Ceramic Package
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Extended Product Life Cycle
Extended Product-Change Notification
Product Traceability
Pin Compatible to ADS7816 and ADS7822
Serial ( SPI™/SSI) Interface
APPLICATIONS
Texas Instruments' high temperature products
utilize highly optimized silicon (die) solutions
with design and process enhancements to
maximize performance over extended
temperatures.
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Down-Hole Drilling
High Temperature Environments
Vibration/Modal Analysis
Multi-Channel Data Acquisition
Acoustics/Dynamic Strain Gauges
Pressure Sensors
(1) Custom temperature ranges available
DESCRIPTION
The ADS8320 is a 16-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 100-kHz 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—the average
power dissipation is less than 100 mW at 10-kHz data rate.
The ADS8320 also features operation from 2 V to 5.25 V, a synchronous serial (SPI/SSI compatible) interface,
and a differential input. The reference voltage can be set to any level within the range of 500 mV to VCC
.
Ultra-low power and small size make the ADS8320 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 ADS8320 is available in 8-pin ceramic surface-mount packages, specified for the –55°C to
210°C temperature range.
SAR
Control
VREF
DOUT
+IN
–IN
Serial
Interface
CDAC
DCLOCK
CS/SHDN
Comparator
S/H Amp
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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.
SPI is a trademark of Motorola, Inc..
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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 © 2010–2012, Texas Instruments Incorporated