ADS8509-HT Datasheet, PDF (1/29 Pages) Texas Instruments – 16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER

ADS8509-HT
www.ti.com
SLAS737A – DECEMBER 2012 – REVISED DECEMBER 2013
16-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER
Check for Samples: ADS8509-HT
FEATURES
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• 250-kHz Sampling Rate
• 4-V, 5-V, 10-V, ±3.33-V, ±5-V, and ±10-V Input
Ranges
• ±4.5 LSB Max INL (at 175°C)
• ±2.2 LSB Max DNL (at 175°C), 16-Bit No
Missing Codes
• SPI Compatible Serial Output with Daisy-Chain
(TAG) Feature
• Single 5-V Supply
• Pin-Compatible with ADS7809 (Low Speed)
and 12-Bit ADS8508/7808
• Uses Internal or External Reference
• 87-mW Typ Power Dissipation at 250 KSPS to
5 V, While the Innovative Design Allows
Operation
• 28-Pin SSOP Package
• Simple DSP Interface
APPLICATIONS
• Down-hole Drilling
• High Temperature Environments
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
• Controlled Baseline
• One Assembly and Test Site
• One Fabrication Site
• Available in Extreme (–40°C to 175°C)
Temperature Range ⁽¹⁾
• This Device is Qualified for 1000 Hours of
Continuous Operation at Maximum Rated
Temperature
• 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 ADS8509 is a complete 16-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS
structures. It contains a complete 16-bit, capacitor-based, successive approximation register (SAR) A/D converter
with sample-and-hold, reference, clock, and a serial data interface. Data can be output using the internal clock or
can be synchronized to an external data clock. The ADS8509 also provides an output synchronization pulse for
ease of use with standard DSP processors.
The ADS8509 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide
various input ranges including ±10 V and 0 V to 5 V, while the innovative design allows operation from a single 5-
V supply with power dissipation under 110 mW.
The ADS8509 is available in a 28-pin SSOP package and is fully specified for operation from -40°C to 175°C.
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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.
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 © 2012–2013, Texas Instruments Incorporated