The AD8031 (single) is a single supply voltage feedback amplifier that features high speed performance with 80 MHz of small signal bandwidth, 30 V/µs slew rate and 125 ns settling time. This performance is possible while consuming less than 4.0 mW of power from a single +5 V supply. This feature increases the operation time of high speed, battery-powered systems without compromising dynamic performance.
The AD8031 has true single supply capability with rail-to-rail input and output characteristics and is specified for +2.7 V, +5 V, and ±5 V supplies. The input voltage range can extend to 500 mV beyond each rail. The output voltage swings to within 20 mV of each rail providing the maximum output dynamic range.
The AD8031 also offers excellent signal quality for only 800 µA of supply current per amplifier; THD is -62 dBc with a 2 V p-p, 1 MHz output signal, and -86 dBc for a 100 kHz, 4.6 V p-p signal on +5 V supply. The low distortion and fast settling time make it ideal as a buffer to single supply ADCs.
Operating on supplies from +2.7 V to +12 V and dual supplies up to ±6 V, the AD8031 is ideal for a wide range of applications, from battery operated systems with large bandwidth requirements to high speed systems where component density requires lower power dissipation. The AD8031 is available in 8-lead PDIP, 8-lead SOIC_N and 5-lead SOT-23 packages and operates over the industrial temperature range of -40°C to +85°C.
AD8032 - Dual Amplifier
|Title||Content Type||File Type|
|AD8031/AD8032: 2.7V, 800 μA, 80 MHz Rail-to-Rail I/O Amplifiers Data Sheet (Rev G, 03/2014) (pdf, 423 kB)||Data Sheets|
|AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)||Application Notes|
|AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (pdf, 166 kB)||Application Notes|
|AN-358: Noise and Operational Amplifier Circuits (pdf, 593 kB)||Application Notes|
|AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications (pdf, 538 kB)||Application Notes|
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps
(pdf, 55 kB)
So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems
(pdf, 228 kB)
Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits.
|AN-257: Careful Design Tames High Speed Op Amps (pdf, 611 kB)||Application Notes|
|AN-253: Find Op Amp Noise with Spreadsheet (pdf, 77 kB)||Application Notes|
|CN-0255: A Complete Single-Supply, 16-Bit, 100 kSPS PulSAR ADC System Dissipates 8 mW (pdf, 325 kB)||Circuit Note|
|CN0277: High-Precision, 18-Bit, 5 MSPS, Low Power Data Acquisition Signal-Chain (pdf, 220 kB)||Circuit Note|
|CN0247: 12-Bit ,1 MSPS, Single-Supply, Low Power Data Acquisition System (pdf, 228 kB)||Circuit Note|
|CN0201: Complete 5 V, Single-Supply, 8-Channel Multiplexed Data Acquisition System with PGIA for Industrial Signal Levels (pdf, 263 kB)||Circuit Note|
|A 16-Bit, 6 MSPS SAR ADC System with Low Power Input Drivers and Reference Optimized for Multiplexed Applications (pdf, 457 kB)||Circuit Note|
|CN-0105: Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (pdf, 382 kB)||Circuit Note|
|CN-0080: High Speed, Precision, Differential AC-Coupled Drive Circuit for 16-Bit, 6 MSPS AD7625 PulSAR ADC (pdf, 214 kB)||Circuit Note|
|MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps (pdf, 62 kB)||Tutorials|
|MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters (pdf, 69 kB)||Tutorials|
|MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps (pdf, 66 kB)||Tutorials|
|MT-056: High Speed Voltage Feedback Op Amps (pdf, 109 kB)||Tutorials|
|MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR (pdf, 104 kB)||Tutorials|
|MT-052: Op Amp Noise Figure: Don't Be Misled (pdf, 60 kB)||Tutorials|
|MT-050: Op Amp Total Output Noise Calculations for Second-Order System (pdf, 38 kB)||Tutorials|
|MT-049: Op Amp Total Output Noise Calculations for Single-Pole System (pdf, 40 kB)||Tutorials|
|MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth (pdf, 81 kB)||Tutorials|
|MT-047: Op Amp Noise (pdf, 72 kB)||Tutorials|
|MT-033: Voltage Feedback Op Amp Gain and Bandwidth (pdf, 251 kB)||Tutorials|
|MT-032: Ideal Voltage Feedback (VFB) Op Amp (pdf, 65 kB)||Tutorials|
A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
|UG-127: Universal Evaluation Board for High Speed Op Amps in SOT-23-5/SOT-23-6 Packages (pdf, 273 kB)||User Guides|
|UG-101: Evaluation Board User Guide (pdf, 189 kB)||User Guides|
Linear Potentiometer Provides Nonlinear Light-intensity Control
by Stephan Goldstein, Analog Devices, Inc. (Design Idea, EDN, 4/28/2005)
SAR ADC & Driver Quick-Match Guide
(pdf, 251 kB)
Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
|Product Selection Guide|
|High Speed Amplifiers Selection Table (pdf, 77 kB)||Product Selection Guide|
|When running on a single supply, my op amp's output is highly distorted. Could this be some kind of headroom issue?||FAQs/RAQs||HTML|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
|Title||Content Type||File Type|
This calculator converts between standard units of power measurement and signal strength.
|Utilities and Conversions||HTML|
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
|Utilities and Conversions||HTML|
This tool will help with the selection, evaluation and troubleshooting of voltage feedback Op-Amps. It uses typical data to model the behavior of a selected amplifier. It allows a user to select an amplifier, configure a circuit, apply a signal and evaluate the performance. It is useful for checking an amplifier's spec's such as Bandwidth, Slew Rate, Input/Output Range, Gain Error, Load Current, Stability Issues and DC Errors in a given circuit.
|ADIsim Design/Simulation Tools||HTML|
An applet for demonstrating stability effects in opamp buffers.
|AD8031 SPICE Macro-Model||SPICE Models||HTML|
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.