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Analog Devices Semiconductor Electronic Components Datasheet

AD7980 Datasheet

1 MSPS PulSAR ADC

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Data Sheet
16-Bit, 1 MSPS, PulSAR ADC in MSOP/LFCSP
AD7980
FEATURES
16-bit resolution with no missing codes
Throughput: 1 MSPS
Low power dissipation
4 mW at 1 MSPS (VDD only)
7 mW at 1 MSPS (total)
70 μW at 10 kSPS
INL: ±0.6 LSB typical, ±1.25 LSB maximum
SINAD: 91.25 dB at 10 kHz
THD: −110 dB at 10 kHz
Pseudo differential analog input range
0 V to VREF with VREF between 2.5 V to 5 V
No pipeline delay
Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V
logic interface
Proprietary serial interface
SPI/QSPI/MICROWIRE™/DSP compatible
Daisy-chain multiple ADCs and busy indicator
10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP,
same space as SOT-23
Wide operating temperature range: −40°C to +125°C
APPLICATIONS
Battery-powered equipment
Communications
Automatic test equipment (ATE)
Data acquisitions
Medical instruments
Table 1. MSOP, LFCSP 14-/16-/18-Bit PulSAR® ADCs
Type
100 kSPS
250 kSPS
18-Bit
AD7989-11
AD76911
16-Bit
14-Bit
AD7680
AD7683
AD7684
AD7988-11
AD7940
1 Pin-for-pin compatible.
AD76851
AD76871
AD7694
AD79421
TYPICAL APPLICATION CIRCUIT
2.5V TO 5V 2.5V
0 TO VREF
REF VDD VIO
IN+
SDI
AD7980 SCK
IN– SDO
GND
CNV
1.8V TO 5.0V
3- OR 4-WIRE INTERFACE
(SPI, DAISY CHAIN, CS)
Figure 1.
GENERAL DESCRIPTION
The AD79801 is a 16-bit, successive approximation, analog-to-
digital converter (ADC) that operates from a single power supply,
VDD. It contains a low power, high speed, 16-bit sampling ADC
and a versatile serial interface port. On the CNV rising edge, it
samples an analog input, IN+, between 0 V to REF with respect
to a ground sense, IN−. The reference voltage, REF, is applied
externally and can be set independent of the supply voltage,
VDD. Its power scales linearly with throughput.
The SPI-compatible serial interface also features the ability,
using the SDI input, to daisy-chain several ADCs on a single,
3-wire bus and provides an optional busy indicator. It is compatible
with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO.
The AD7980 is housed in a 10-lead MSOP or a 10-lead LFCSP
with operation specified from −40°C to +125°C.
1 Protected by U.S. Patent 6,703,961.
400 kSPS to 500 kSPS
AD76901
AD7989-51
AD76861
AD76881
AD76931
AD7988-51
AD79461
≥1000 kSPS
AD79821
AD79841
AD79801
AD79831
Rev. E
Document Feedback
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2007–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD7980 Datasheet

1 MSPS PulSAR ADC

No Preview Available !

AD7980* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
View a parametric search of comparable parts
Evaluation Kits
• AD7980 Evaluation kit
• Precision ADC PMOD Compatible Boards
Documentation
Application Notes
• AN-742: Frequency Domain Response of Switched-
Capacitor ADCs
• AN-931: Understanding PulSAR ADC Support Circuitry
• AN-932: Power Supply Sequencing
Data Sheet
• AD7980-DSCC: Military Data Sheet
• AD7980-EP: Enhanced Product Data Sheet
• AD7980: 16-Bit, 1 MSPS, PulSAR ADC in MSOP/LFCSP
Data Sheet
Product Highlight
• [NO TITLE FOUND] Product Highlight
• Lowest-Power 16-Bit ADC Optimizes Portable Designs
(eeProductCenter, 10/4/2006)
User Guides
• UG-340: Evaluation Board for the 10-Lead Family 14-/16-/
18-Bit PulSAR ADCs
• UG-682: 6-Lead SOT-23 ADC Driver for the 8-/10-Lead
Family of 14-/16-/18-Bit PulSAR ADC Evaluation Boards
Software and Systems Requirements
• AD7980 - No-OS Driver for Microchip Microcontroller
Platforms
• AD7980 - No-OS Driver for Renesas Microcontroller
Platforms
• AD7980 FMC-SDP Interposer & Evaluation Board / Xilinx
KC705 Reference Design
• BeMicro FPGA Project for AD7980 with Nios driver
Tools and Simulations
• AD7980 IBIS Models
Reference Materials
Press
• Analog Devices To Host ‘Name That Beer’ Demonstration
Using Spectrometer Technology from Wasatch Photonics at
electronica 2012
• Most Power Efficient Drivers For 12-, 14- And 16-bit A/D
Converters Unveiled
Product Selection Guide
• SAR ADC & Driver Quick-Match Guide
Technical Articles
• Explaining SAR ADC Power Specifications
• Exploring Different SAR ADC Analog Input Architectures
• Introduction to Dynamic Power Scaling
• MS-1779: Nine Often Overlooked ADC Specifications
• MS-2210: Designing Power Supplies for High Speed ADC
• Powering A Precision SAR ADC Using A High Efficiency,
Ultralow Power Switcher in Power Sensitive Applications
Tutorials
• MT-001: Taking the Mystery out of the Infamous Formula,
"SNR=6.02N + 1.76dB", and Why You Should Care
• MT-002: What the Nyquist Criterion Means to Your
Sampled Data System Design
• MT-031: Grounding Data Converters and Solving the
Mystery of "AGND" and "DGND"
Design Resources
• AD7980 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD7980 EngineerZone Discussions
Sample and Buy
Visit the product page to see pricing options
Technical Support
Submit a technical question or find your regional support
number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.


Part Number AD7980
Description 1 MSPS PulSAR ADC
Maker Analog Devices
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