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AD7980: 16-Bit, 1 MSPS, PulSAR ADC in MSOP/LFCSP Data Sheet (Rev. G)1/29/2021PDF562 K
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AD7980-EP: Enhanced Product Data Sheet (Rev. A)9/24/2015PDF332 K
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AD7980-DSCC: Military Data Sheet9/24/2015
Overview
Features and Benefits
- High performance
- Pseudo differential analog input range
- 0 V to VREF with VREF between 2.5 V to 5 V
- Throughput: 1 MSPS
- Zero latency architecture
- 16-bit resolution with no missing codes
- INL: ±0.6 LSB typical, ±1.25 LSB maximum
- Dynamic range: 92 dB, VREF = 5 V
- SNR: 91.5 dB at fIN = 10 kHz, VREF = 5 V
- THD: −114 dB at fIN = 10 kHz, VREF = 5 V
- SINAD: 91 dB at fIN = 10 kHz, VREF = 5 V
- Low power dissipation
- Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
- 4 mW at 1 MSPS (VDD only)
- 7 mW at 1 MSPS (total)
- 70 μW at 10 kSPS
- Proprietary serial interface
- SPI/QSPI/MICROWIRE™/DSP compatible
- Daisy-chain multiple ADCs and busy indicator
- 10-lead MSOP, 10-lead, 3 mm × 3 mm LFCSP
- Wide operating temperature range: −40°C to +125°C
- Download AD7980-EP data sheet (pdf)
- Controlled manufacturing baseline
- One assembly/test site
- One fabrication site
- Enhanced product change notification
- Qualification data available on request
- Military temperature range: −55°C to +125°C
- V62/12640 DSCC Drawing Number
Product Details
The AD7980 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 QFN (LFCSP) with operation specified from −40°C to +125°C.
APPLICATIONS- Automated test equipment
- Data acquisition systems
- Medical instruments
- Machine automation
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
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AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. C)2/14/2015PDF427 K
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AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)2/14/2015PDF299 kB
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AD7980 Results8/28/2019
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MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design2/14/2015PDF152 kB
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MT-031: Grounding Data Converters and Solving the Mystery of "AGND" and "DGND"3/20/2009PDF144 kB
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MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N + 1.76dB", and Why You Should Care3/4/2009PDF94 kB
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SAR ADC & Driver Quick-Match Guide9/13/2013PDF251 kB
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Explaining SAR ADC Power Specifications3/20/2018PDF330K
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Protecting ADC Inputs4/1/2017
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Practical Filter Design Challenges and Considerations for Precision ADCs4/1/2016 Analog Dialogue
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Powering a Precision SAR ADC Using a High Efficiency, Ultralow Power Switcher in Power Sensitive Applications3/1/2016
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Exploring Different SAR ADC Analog Input Architectures1/1/2016
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Introduction to Dynamic Power Scaling1/1/2016
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Explaining SAR ADC Power Specifications4/1/2015
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High Performance Electrocardiogram (ECG) Signal Conditioning1/8/2015
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Design Reliable Digital Interfaces for Successive-Approximation ADCs1/1/2015 Analog Dialogue
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Voltage Reference Design for Precision Successive-Approximation ADCs6/1/2013 Analog Dialogue
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Front-End Amplifier and RC Filter Design for a Precision SAR Analog-to-Digital Converter12/1/2012 Analog Dialogue
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Designing Power Supplies for High Speed ADC2/1/2012
Software & Systems Requirements
Device Drivers
Tools & Simulations
Precision ADC Driver Tool
The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input
Product Recommendations
AD7980 Companion Parts
Recommended Digital Isolators
- For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation: ADUM3401.
- For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V): ADUM3481.
- For SPI Interface, low power, 5.0 kVrms isolation: ADUM4401.
- For SPI Interface, lowest power, 2.5 kVrms isolation: ADUM1401.
Recommended External Voltage References
Recommended Driver Amplifiers
- For high frequency, low noise, low distortion applications: ADA4807-1, ADA4807-2, ADA4897-1, ADA4897-2.
- For precision, low power, low distortion applications: ADA4805-1, ADA4805-2, ADA4841-1, ADA4841-2.
- For low frequency, precision, low bias current applications: ADA4627-1, ADA4637-1, AD8610.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
AD7980 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
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List Pricing
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Lead Times
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.