AD4682
Pseudo Differential Input, 1 MSPS/500 kSPS, Dual, Simultaneous Sampling, 16-Bit, SAR ADCs
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Overview
Features and Benefits
- Dual 16-bit ADC family
- Dual simultaneous sampling
- Pseudo differential analog inputs
- Throughput conversion rate
- 1 MSPS for the AD4682
- 500 kSPS for the AD4683
- SNR (typical)
- 87.5 dB, VREF = 3.3 V external
- 93.4 dB with RES = 1 and OSR = ×8
- On-chip oversampling function
- Alert function
- Resolution boost function
- INL error (maximum): 2.5 LSBs
- 2.5 V internal reference
- High speed serial interface
- −40°C to +125°C operation
- 3 mm × 3 mm, 16-lead LFCSP
Product Details
The AD4682 and the AD4683 are a 16-bit, pin-compatible family of dual, simultaneous sampling, high speed, low power, successive approximation register (SAR), analog-to-digital converters (ADCs) that operate from a 3.0 V to 3.6 V power supply and feature throughput rates up to 1 MSPS for the AD4682 and 500 kSPS for the AD4683. The analog input type is pseudo differential and is sampled and converted on the falling edge of CS.
Integrated on-chip oversampling blocks improve dynamic range and reduce noise at lower bandwidths. A buffered internal 2.5 V reference is included. Alternatively, an external reference up to 3.3 V can be used.
The conversion process and data acquisition use standard control inputs that allow simple interfacing to microprocessors or digital signal processors (DSPs). The devices are compatible with 1.8 V, 2.5 V, and 3.3 V interfaces, using a separate logic supply.
Applications
- Motor control position feedback
- Motor control current sense
- Sonar
- Power quality
- Data acquisition systems
- Erbium doped fiber amplifier (EDFA) applications
- Inphase (I) and quadrature (Q) demodulation
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Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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Fast Reacting, Optical Encoder Feedback System for Miniature Motor Driven Applications4/1/2020 Analog Dialogue
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High Accuracy Resolver Simulator System with Fault Injection Function8/16/2019 Analog Dialogue
Software & Systems Requirements
Device Drivers
Tools & Simulations
IBIS Models
IBS
AD738x IBIS Model
171.67 K
Product Recommendations
AD4682 Companion Parts
Recommended Driver Amplifiers
- For Precision low power Application: ADA4807-2, ADA4805-2.
- For Precision, low density Application: ADA4940-2.
- For high frequency, low noise, low distortion Application: ADA4896-2.
Recommended Low Dropout Regulators
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.
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.