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ADS7253 Datasheet Preview

ADS7253 Datasheet

Analog-to-Digital Converters

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ADS8353, ADS7853, ADS7253
SBAS584B – OCTOBER 2013 – REVISED AUGUST 2014
ADSxx53 Dual, High-Speed, 16-, 14-, and 12-Bit,
Simultaneous-Sampling, Analog-to-Digital Converters
1 Features
1 16-, 14-, and 12-Bit, Pin-Compatible Family
• Simultaneous Sampling of Two Channels
• Supports Single-Ended and Pseudo-Differential
Inputs
• High Speed:
– ADS8353: 16 Bits, 600 kSPS
– ADS7853: 14 Bits, 1 MSPS
– ADS7253: 12 Bits, 1 MSPS
• Excellent DC Performance:
– ADS8353:
– 16-Bit NMC DNL, ±2.5-LSB Max INL
– ADS7853:
– 14-Bit NMC DNL, ±2-LSB Max INL
– ADS7253:
– 12-Bit NMC DNL, ±1-LSB Max INL
• Excellent AC Performance:
– ADS8353:
– 89-dB SNR, –100-dB THD
– ADS7853:
– 82-dB SNR, –90-dB THD
– ADS7253:
– 72-dB SNR, –90-dB THD
• Dual, Programmable, and Buffered
2.5-V Internal Reference
• Fully-Specified Over the Extended Industrial
Temperature Range: –40°C to 125°C
• Small Footprint:
WQFN-16 (3-mm × 3-mm) and TSSOP-16
2 Applications
• Motor Control:
Position Measurement Using Encoders
• Optical Networking: EDFA Gain Control Loops
• Protection Relays
• Power Quality Measurement
• Three-Phase Power Controls
• Programmable Logic Controllers
3 Description
The ADS8353, ADS7853, and ADS7253 belong to a
family of pin-compatible, dual, high-speed,
simultaneous-sampling, analog-to-digital converters
(ADCs) that support single-ended and pseudo-
differential analog inputs.
Each device includes two individually programmable
reference sources that can be used for system-level
gain calibration. Also, a flexible serial interface that
can operate over a wide power-supply range enables
easy communication with a large variety of host
controllers. Power consumption for a given
throughput can be optimized by using the two low-
power modes supported by the device. All devices
are fully specified over the extended industrial
temperature range (–40°C to 125°C) and are
available in pin-compatible, WQFN-16 (3-mm ×
3-mm) and TSSOP-16 packages.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADSxx53
TSSOP (16)
WQFN (16)
5.00 mm × 4.40 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Diagram
AVDD
VCM
OPA836
+ + 4 
1 k 
-
VIN+ 1.8 nF
1k 
4 
AVDD
AINP
AVDD
ADSxx53
AINM
GND
VDC
INPUT DRIVER
ADS8353 : 16-bit, 600 kSPS
ADS7853 : 14-bit, 1 MSPS
ADS7253 : 12-bit, 1 MSPS
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.




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ADS7253 Datasheet Preview

ADS7253 Datasheet

Analog-to-Digital Converters

No Preview Available !

ADS8353, ADS7853, ADS7253
SBAS584B – OCTOBER 2013 – REVISED AUGUST 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configurations and Functions ....................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ..................................... 5
7.2 Handling Ratings....................................................... 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics: ADS8353 ......................... 6
7.6 Electrical Characteristics: ADS7853 ......................... 7
7.7 Electrical Characteristics: ADS7253 ......................... 8
7.8 Electrical Characteristics: All Devices....................... 9
7.9 Timing Requirements: Interface Mode.................... 11
7.10 Timing Characteristics: Serial Interface ................ 11
7.11 Typical Characteristics: ADS8353 ........................ 13
7.12 Typical Characteristics: ADS7853 ........................ 17
7.13 Typical Characteristics: ADS7253 ........................ 22
7.14 Typical Characteristics: Common to ADS8353,
ADS7853, and ADS7253 ......................................... 27
8 Detailed Description ............................................ 28
8.1 Overview ................................................................. 28
8.2 Functional Block Diagram ....................................... 28
8.3 Feature Description................................................. 29
8.4 Device Functional Modes........................................ 35
8.5 Register Maps and Serial Interface......................... 35
9 Application and Implementation ........................ 49
9.1 Application Information............................................ 49
9.2 Typical Applications ................................................ 51
10 Power-Supply Recommendations ..................... 59
11 Layout................................................................... 60
11.1 Layout Guidelines ................................................. 60
11.2 Layout Example .................................................... 60
12 Device and Documentation Support ................. 61
12.1 Related Links ........................................................ 61
12.2 Related Documentation......................................... 61
12.3 Trademarks ........................................................... 61
12.4 Electrostatic Discharge Caution ............................ 61
12.5 Glossary ................................................................ 61
13 Mechanical, Packaging, and Orderable
Information ........................................................... 61
4 Revision History
Changes from Revision A (July 2014) to Revision B
Page
• Made changes to the ADS8353 preview device and moved to Production Data status ........................................................ 1
• Changed document status from Mixed Status to Production Data ........................................................................................ 1
• Corrected cross-reference for Figure 99 .............................................................................................................................. 48
Changes from Original (October 2013) to Revision A
Page
• Made changes to product preview data sheet........................................................................................................................ 1
2 Submit Documentation Feedback
Copyright © 2013–2014, Texas Instruments Incorporated
Product Folder Links: ADS8353 ADS7853 ADS7253


Part Number ADS7253
Description Analog-to-Digital Converters
Maker etcTI
Total Page 30 Pages
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