ADS8320-HT Datasheet, PDF (1/27 Pages) Texas Instruments – 16-BIT, HIGH-SPEED, 2.7-V TO 5-V, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER

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
FEATURES
1
•2 100-kHz Sampling Rate
• Micropower:
– 3.8 mW at 100 kHz and 2.7 V
– 0.3 mW at 10 kHz and 2.7 V
• Power Down: 6 µA max
• 8-Pin Ceramic Package
• Pin Compatible to ADS7816 and ADS7822
• Serial ( SPI™/SSI) Interface
APPLICATIONS
• Down-Hole Drilling
• High Temperature Environments
• Vibration/Modal Analysis
• Multi-Channel Data Acquisition
• Acoustics/Dynamic Strain Gauges
• Pressure Sensors
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Extreme (–55°C/210°C)
Temperature Range⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
• Texas Instruments' high temperature products
utilize highly optimized silicon (die) solutions
with design and process enhancements to
maximize performance over extended
temperatures.
(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 V_CC.
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
V_REF
+IN
–IN
S/H Amp
CDAC
Comparator
Serial
Interface
D_OUT
DCLOCK
CS/SHDN
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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..
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 © 2010–2012, Texas Instruments Incorporated