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Overview
Features and Benefits
- Low power dissipation
2 mW at 500 kSPS (VDD only)
3.7 mW at 500 kSPS (total) - 16-bit resolution with no missing codes
- Throughput: 1 MSPS
- INL: ±0.4 LSB typical, 1 LSB maximum
- SNR: 94 dB at 1 kHz,
VREF = 5 V - SINAD: 93.5 dB at 1 kHz,
VREF = 5 V - THD: −118.5 dB at 1 kHz
- Dynamic range: 95.5 dB,
VREF = 5 V
- True differential analog input range: ±VREF
- 0 V to VREF with VREF between 2.4 V and 5.1 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™-/DSPcompatible
- Ability to daisy-chain multiple ADCs
- 10-lead package: MSOP and 3 mm × 3 mm LFCSP
Product Details
The AD7915/AD7916 are 16-bit, successive approximation, analog-to-digital converters (ADCs) that operate from a single power supply, VDD. They contain a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, the AD7915/AD7916 sample the voltage difference between the IN+ and IN− pins. The voltages on these pins typically swing in opposite phases between 0 V and VREF. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput.
The AD7915/AD7916 are serial peripheral interface (SPI) compatible, which features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus. It is compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic, using the separate VIO supply.
The AD7915/AD7916 are available in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +125°C.APPLICATIONS
- Battery-powered equipment
- Data acquisition systems
- Medical instruments
- Seismic data acquisition systems
Product Categories
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
Application Notes (6)
Product Highlight (2)
Tools & Simulations
Precision ADC Driver Tool - BETA
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
IBIS Models
Product Recommendations
AD7916 Companion Parts
Recommended Digital Isolators
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For SPI Interface, lowest power, 2.5kVrms isolation:
ADUM1401. - For SPI Interface, low power, 5.0 kVrms isolation: ADUM4401.
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For SPI Interface, enhanced system-level ESD performance, 2.5kVrms isolation:
ADUM3401. - For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V): ADUM3481.
Recommended External Voltage References
Recommended Driver Amplifiers
- For precision, low power, low distortion applications: ADA4805-1, ADA4805-2, ADA4841-1, ADA4841-2, ADA4940-1, ADA4941-1.
- For high frequency, low noise, low distortion applications: ADA4805-1, ADA4897-2, AD8021.
- For low frequency, precision, low bias current applications: ADA4627-1, ADA4637-1, AD8610.
Recommended Power Solutions
Reference Materials
Product Selection Guide (1)
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
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
