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AD7983: 16-Bit, 1.33 MSPS PulSAR ADC in MSOP/LFCSP Data Sheet (Rev. C)11/1/2007PDF557 K
Overview
Features and Benefits
- High performance
- Pseudo differential analog input range
- 0 V to VREF with VREF between 2.9 V to 5 V
- Throughput: 1.33 MSPS
- Zero latency architecture
- 16-bit resolution with no missing codes
- INL: ±0.6 LSB typical, ±1.0 LSB maximum
- Dynamic range: 93 dB, VREF = 5 V
- SNR: 92 dB at fIN = 1 kHz, VREF = 5 V
- THD: −115 dB at fIN = 1 kHz, VREF = 5 V
- SINAD: 92 dB at fIN = 1 kHz, VREF = 5 V
- Pseudo differential analog input range
- Low power dissipation
- Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
- 5.25 mW at 1.33 MSPS (VDD only)
- 10.5 mW at 1.33 MSPS (total)
- 80 μW at 10 kSPS
- 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
- Wide operating temperature range: −40°C to +85°C
Product Details
The AD7983 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 AD7983 is housed in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +85°.
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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Understanding PulSAR ADC Support Circuitry7/30/2020
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AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. C)2/14/2015PDF427 K
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AD7983 Results8/28/2019
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The Data Conversion Handbook, 20051/2/2005
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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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SAR ADC & Driver Quick-Match Guide9/13/2013PDF251 kB
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National Instruments Case Study11/21/2014
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Protecting ADC Inputs4/1/2017
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Designing Power Supplies for High Speed ADC2/1/2012
Software & Systems Requirements
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
AD7983 Companion Parts
Recommended Digital Isolators
- For SPI Interface, lowest power, 2.5 kVrms isolation: ADUM1401.
- 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, enhanced system-level ESD performance, 2.5 kVrms isolation: ADUM3401.
Recommended Driver Amplifiers
- For low frequency, precision, low bias current applications: ADA4627-1, ADA4637-1, AD8610.
- For precision, low power, low distortion applications: ADA4841-1, ADA4896-2, AD8031, AD8031.
- For high frequency, low noise, low distortion applications: ADA4897-1, AD8021.
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD7983BCPZ-RL7 | Material Declaration | Reliability Data | 10-Lead LFCSP (3mm x 3mm) | |
| AD7983BRMZ | Material Declaration | Reliability Data | 10-Lead MSOP | |
| AD7983BRMZ-RL7 | Material Declaration | Reliability Data | 10-Lead MSOP | |
| Wafer Fabrication Data |
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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.