ADS7056 ADC Datasheet

ADS7056 Datasheet, PDF, Equivalent


Part Number

ADS7056

Description

14-Bit High-Speed SAR ADC

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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ADS7056
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ADS7056
SBAS769 – MARCH 2017
ADS7056 Ultra-Low Power, Ultra-Small Size, 14-Bit, High-Speed SAR ADC
1 Features
1 2.5-MSPS Throughput
• Ultra-Small Size SAR ADC:
– X2QFN-8 Package with 2.25-mm2 Footprint
• Wide Operating Range:
– AVDD: 2.35 V to 3.6 V
– DVDD: 1.65 V to 3.6 V (Independent of AVDD)
– Temperature Range: –40°C to +125°C
• Unipolar Input Range: 0 V to AVDD
• Excellent Performance:
– 14-Bit NMC DNL, ±2-LSB INL
– 74.5-dB SINAD at 2-kHz
– 73.7-dB SINAD at 1-MHz
• Ultra-Low Power Consumption:
– 3.5 mW at 2.5-MSPS with 3.3-V AVDD
– 158 µW at 100-kSPS with 3.3-V AVDD
• Integrated Offset Calibration
• SPI-Compatible Serial Interface: 60-MHz
• JESD8-7A Compliant Digital I/O
2 Applications
• Sonar Receivers
• Optical Line Cards and Modules
• Thermal Imaging
• Ultrasonic Flow Meters
• Motor Controls
• Handheld Radios
• Environmental Sensing
• Fire and Smoke Detection
3 Description
The ADS7056 is a 14-bit, 2.5-MSPS, analog-to-digital
converter (ADC). The device includes a capacitor-
based, successive-approximation register (SAR) ADC
that supports a wide analog input voltage range (0 V
to AVDD, for AVDD in the range of 2.35 V to 3.6 V).
The SPI-compatible serial interface is controlled by
the CS and SCLK signals. The input signal is
sampled with the CS falling edge and SCLK is used
for conversion and serial data output. The device
supports a wide digital supply range (1.65 V to 3.6 V),
enabling direct interfacing to a variety of host
controllers. The ADS7056 complies with the JESD8-
7A standard for a normal DVDD range (1.65 V to
1.95 V).
The ADS7056 is available in an 8-pin, miniature,
X2QFN package and is specified over the extended
industrial temperature range (–40°C to +125°C).
Miniature form-factor and extremely low-power
consumption make this device suitable for space-
constrained and battery-powered applications.
PART NAME
ADS7056
Device Information(1)
PACKAGE
BODY SIZE (NOM)
X2QFN (8)
1.50 mm × 1.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application
SONAR TX
+ OPA836
R
SONAR RX
C
AVDD
AVDD used as Reference for
device
AINP
AVDD
Device
AINM
GND
RUG (8)
1.5mm
1.5mm
Actual Device Size
1.5 x 1.5 x 0.35(H) mm
NOTE: The ADS7056 is smaller than a 0805 (2012
metric) SMD component.
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.

ADS7056
ADS7056
SBAS769 – MARCH 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ..................................... 3
6.2 ESD Ratings.............................................................. 3
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 4
6.6 Timing Requirements ................................................ 6
6.7 Switching Characteristics .......................................... 6
6.8 Typical Characteristics .............................................. 8
7 Parameter Measurement Information ................ 14
7.1 Digital Voltage Levels ............................................. 14
8 Detailed Description ............................................ 15
8.1 Overview ................................................................. 15
8.2 Functional Block Diagram ....................................... 15
8.3 Feature Description................................................. 16
8.4 Device Functional Modes........................................ 19
9 Application and Implementation ........................ 23
9.1 Application Information............................................ 23
9.2 Typical Applications ................................................ 23
10 Power Supply Recommendations ..................... 30
10.1 AVDD and DVDD Supply Recommendations....... 30
10.2 Optimizing Power Consumed by the Device ........ 30
11 Layout................................................................... 31
11.1 Layout Guidelines ................................................. 31
11.2 Layout Example .................................................... 31
12 Device and Documentation Support ................. 32
12.1 Documentation Support ........................................ 32
12.2 Receiving Notification of Documentation Updates 32
12.3 Community Resources.......................................... 32
12.4 Trademarks ........................................................... 32
12.5 Electrostatic Discharge Caution ............................ 32
12.6 Glossary ................................................................ 32
13 Mechanical, Packaging, and Orderable
Information ........................................................... 32
4 Revision History
DATE
March 2017
REVISION
*
NOTES
Initial release.
2 Submit Documentation Feedback
Product Folder Links: ADS7056
Copyright © 2017, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity ADS7056 SBAS769 – MARCH 2017 ADS7056 Ultra-Low Power, Ultra-Small Si ze, 14-Bit, High-Speed SAR ADC 1 Featu res •1 2.5-MSPS Throughput • Ultra- Small Size SAR ADC: – X2QFN-8 Package with 2.25-mm2 Footprint • Wide Opera ting Range: – AVDD: 2.35 V to 3.6 V DVDD: 1.65 V to 3.6 V (Independent o f AVDD) – Temperature Range: –40°C to +125°C • Unipolar Input Range: 0 V to AVDD • Excellent Performance: 14-Bit NMC DNL, ±2-LSB INL – 74.5 -dB SINAD at 2-kHz – 73.7-dB SINAD at 1-MHz • Ultra-Low Power Consumption: – 3.5 mW at 2.5-MSPS with 3.3-V AVDD – 158 µW at 100-kSPS with 3.3-V AVD D • Integrated Offset Calibration • SPI-Compatible Serial Interface: 60-MH z • JESD8-7A Compliant Digital I/O 2 Applications • Sonar Receivers • Op tical Line Cards and Modules • Therma l Imaging • Ultrasonic Flow Meters Motor Controls • Handheld Radios • Environmental Sensing • Fire and Smoke Detection 3 Description The ADS7056 is a.
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