ADS8339 Converter Datasheet

ADS8339 Datasheet, PDF, Equivalent


Part Number

ADS8339

Description

SAR Analog-to-Digital Converter

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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ADS8339
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ADS8339
SBAS677A – JUNE 2014 – REVISED OCTOBER 2014
ADS8339 16-Bit, 250-kSPS, Serial Interface, Micro-Power, Miniature,
SAR Analog-to-Digital Converter
1 Features
1 Sample Rate: 250 kHz
• 16-Bit Resolution
• Zero Latency at Full Speed
• Unipolar Single-Ended Input Range:
– 0 V to Vref
• SPI™-Compatible Serial Interface with Daisy-
Chain Option
• Uses Internal Clock for Conversion
• Excellent Performance:
– 93.6 dB SNR (typ) at 10-kHz Input
– –106 dB THD (typ) at 10-kHz Input
– ±2.0 LSB INL (max)
– ±1.0 LSB DNL (max)
• Low-Power Dissipation:
– 17.5 mW (typ) at 250 kSPS
• Power Scales Linearly with Speed:
– 1.75 mW at 25 kSPS
• Power Dissipation During Power-Down State:
– 0.25 μW (typ)
• Package: VSSOP-10
2 Applications
• Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation and Process Controls
• Medical Electronics
• Optical Networking
3 Description
The ADS8339 is a 16-bit, 250-kSPS, analog-to-digital
converter (ADC). The device operates with a 2.25-V
to 5.5-V external reference. The device includes a
capacitor-based, successive-approximation register
(SAR) ADC with an inherent sample-and-hold circuit.
The device includes a 25-MHz, SPI-compatible serial
interface. The interface is designed to support daisy-
chaining or cascading of multiple devices.
Furthermore, a busy indicator makes synchronizing
with the digital host easy. The unipolar, single-ended
input range for the device supports an input swing of
0 V to Vref.
The device is optimized for low-power operation and
power consumption scales directly with speed. This
feature makes the device attractive for lower speed
applications. The ADS8339 is available in a VSSOP-
10 package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADS8339
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
space
space
space
REF
IN+
+100 mV
2.25 V to +VA + 0.1 V
4.5 V to 5.5 V
2.375 V to +VA
0V
100 mV
IN
0V
100 mV
100 mV
VDIFF = (IN+) J ( IN) = 0 V to REF
NOTE: (IN+) _ ( IN)
H100 mV
+VA REFIN +VBD
IN+ SDO
ADS8339
SDI
SCLK
IN CONVST
GND
Pseudo-Differential Input
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

ADS8339
ADS8339
SBAS677A – JUNE 2014 – REVISED OCTOBER 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Family ......................................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 Handling Ratings....................................................... 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 5
7.6 Timing Requirements ................................................ 7
7.7 Typical Characteristics .............................................. 8
8 Parametric Measurement Information ............... 15
8.1 Timing Diagrams ..................................................... 15
9 Detailed Description ............................................ 16
9.1 Overview ................................................................. 16
9.2 Functional Block Diagram ....................................... 16
9.3 Feature Description................................................. 17
9.4 Device Functional Modes........................................ 18
10 Application and Implementation........................ 26
10.1 Application Information.......................................... 26
10.2 Typical Application ................................................ 30
10.3 Do's and Don'ts ..................................................... 31
11 Power-Supply Recommendations ..................... 31
12 Layout................................................................... 32
12.1 Layout Guidelines ................................................. 32
12.2 Layout Example .................................................... 32
13 Device and Documentation Support ................. 33
13.1 Documentation Support ........................................ 33
13.2 Trademarks ........................................................... 33
13.3 Electrostatic Discharge Caution ............................ 33
13.4 Glossary ................................................................ 33
14 Mechanical, Packaging, and Orderable
Information ........................................................... 33
4 Revision History
Changes from Original (June 2014) to Revision A
Page
• Made changes to product preview data sheet........................................................................................................................ 1
2 Submit Documentation Feedback
Product Folder Links: ADS8339
Copyright © 2014, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ADS8339 SBAS677A – JUNE 20 14 – REVISED OCTOBER 2014 ADS8339 16- Bit, 250-kSPS, Serial Interface, Micro- Power, Miniature, SAR Analog-to-Digital Converter 1 Features •1 Sample Rate : 250 kHz • 16-Bit Resolution • Zer o Latency at Full Speed • Unipolar Si ngle-Ended Input Range: – 0 V to Vref • SPI™-Compatible Serial Interface with Daisy- Chain Option • Uses Inte rnal Clock for Conversion • Excellent Performance: – 93.6 dB SNR (typ) at 10-kHz Input – –106 dB THD (typ) at 10-kHz Input – ±2.0 LSB INL (max) ±1.0 LSB DNL (max) • Low-Power Di ssipation: – 17.5 mW (typ) at 250 kSP S • Power Scales Linearly with Speed: – 1.75 mW at 25 kSPS • Power Dissi pation During Power-Down State: – 0.2 5 μW (typ) • Package: VSSOP-10 2 App lications • Battery-Powered Equipment • Data Acquisition Systems • Instr umentation and Process Controls • Medical Electronics • Optical Networking 3 Description The ADS8339 is a 16-bit, 250.
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