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Overview
Features and Benefits
- Throughput: 5 MSPS
- 16-bit resolution with no missing codes
- SNR: 95.5 dB
- INL: ±0.2 LSB
- DNL: ±0.14 LSB
- Internal reference buffer
- True differential analog input voltage range: ±4.096 V or ±5 V
- Low power dissipation (39 mW)
- SAR architecture
- External Reference Options
- Serial LVDS interface
- 32-lead, 5mm × 5mm LFCSP (QFN)
- See datasheet for further details
Product Details
The AD7961 is a 16-bit, 5 MSPS charge redistribution successive approximation (SAR), analog-to-digital converter (ADC). The SAR architecture allows unmatched performance both in noise and in linearity. The AD7961 contains a low power, high speed, 16-bit sampling ADC, an internal conversion clock and an internal reference buffer. On the CNV edge, the AD7961 samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and 4.096 V/5 V. The reference voltage is applied to the part externally. All conversion results are available on a single LVDS self-clocked or echo-clocked serial interface.The AD7961 is available in a 32-lead LFCSP (QFN) with operation specified from −40°C to +85°C.
APPLICATIONS
- Digital imaging systems
Digital X-rays
Computed tomography
IR cameras - MRI gradient control
- High speed data acquisition
- Spectroscopy
- Test equipment
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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
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
IBIS Models
Design Tools
Product Recommendations
AD7961 Companion Parts
Recommended External Voltage References for the AD7961
- For low drift, low noise and high accuracy: ADR444, ADR445, ADR4550, ADR4540.
- For driving the voltage reference input: AD8031.
Recommended Low Dropout Regulators and Switchers for the AD7961
Recommended Driver Amplifiers for the AD7961
- For high frequency, low noise, low distortion applications: ADA4899-1, ADA4897-1, ADA4932-1.
Reference Materials
Technical Articles (5)
Press Releases (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
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AD7961 Discussions
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.