Alternative Parts
Overview
Features and Benefits
- Low power
Supply current 800 µA/amplifier
Fully specified at +2.7 V, +5 V and ±5 V supplies - High speed and fast settling on 5 V
80 MHz, –3 dB bandwidth (G = +1)
30 V/µs slew rate
125 ns settling time to 0.1% - Output current: 15 mA
- High grade option
VOS (maximum) = 1.5 mV - Rail-to-rail input and output
No phase reversal with input
0.5 V beyond supplies
Input CMVR extends beyond rails by 200 mV
Output swing to within 20 mV of either rail - Low distortion
–62 dB @ 1 MHz, VO = 2 V p-p
–86 dB @ 100 kHz, VO = 4.6 V p-p
Product Details
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
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
-
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications9/14/2023
-
Understanding PulSAR ADC Support Circuitry7/30/2020
-
AN-1575: Single-Ended to Differential High Speed Drive Circuit for the AD7626 16-Bit, 10 MSPS ADC (Rev. A)1/14/2019
-
AN-253: Find Op Amp Noise with Spreadsheet2/14/2015
-
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps2/14/2015
-
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0)2/14/2015
-
AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications2/14/2015
-
AN-257: Careful Design Tames High Speed Op Amps2/14/2015
-
AN-358: Noise and Operational Amplifier Circuits2/14/2015
-
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems10/1/1996
-
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR2/14/2015
-
MT-052: Op Amp Noise Figure: Don't Be Misled2/14/2015
-
MT-050: Op Amp Total Output Noise Calculations for Second-Order System2/14/2015
-
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System2/14/2015
-
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth2/14/2015
-
MT-047: Op Amp Noise2/14/2015
-
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps2/14/2015
-
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/2015
-
MT-033: Voltage Feedback Op Amp Gain and Bandwidth2/14/2015
-
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/2015
-
MT-056: High Speed Voltage Feedback Op Amps2/3/2009
-
MT-032: Ideal Voltage Feedback (VFB) Op Amp12/11/2008
-
SAR ADC & Driver Quick-Match Guide9/13/2013
-
High Speed Amplifiers Selection Table2/27/2008
-
CN0277: High-Precision, 18-Bit, 5 MSPS, Low Power Data Acquisition Signal-Chain12/30/2013
-
CN-0255: A Complete Single-Supply, 16-Bit, 100 kSPS PulSAR ADC System Dissipates 8 mW12/30/2013
-
CN0247: 12-Bit ,1 MSPS, Single-Supply, Low Power Data Acquisition System12/29/2013
-
CN0201: Complete 5 V, Single-Supply, 8-Channel Multiplexed Data Acquisition System with PGIA for Industrial Signal Levels5/1/2013
-
A 16-Bit, 6 MSPS SAR ADC System with Low Power Input Drivers and Reference Optimized for Multiplexed Applications11/5/2012
-
CN-0105: Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC11/9/2010
-
Selecting an ADC driver to achieve optimized signal chain performance7/13/2015
-
Increase Dynamic Range of SAR ADCs Using Oversampling6/1/2015
-
Demystifying High-Performance Multiplexed Data-Acquisition Systems7/1/2014 Analog Dialogue
-
High-Performance Data-Acquisition System Enhances Images for Digital X-Ray and MRI10/1/2013 Analog Dialogue
-
Voltage Reference Design for Precision Successive-Approximation ADCs6/1/2013 Analog Dialogue
-
Making Batteries Last Longer with Fast, High-Precision SAR Analog-to-Digital-Converters9/1/2012 Analog Dialogue
-
Amplifier Input Protection... Friend or Foe?5/1/2007 Analog Dialogue
-
Linear Potentiometer Provides Nonlinear Light-intensity Control4/28/2005
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
AD8031
SPICE Model
CIR
AD8031 SPICE Macro Model
4.46 K
Design Tool
Analog Filter Wizard
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Analog Photodiode Wizard
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
VRMS/dBm/dBu/dBV calculators
A utility to convert between standard units of power measurement and signal strength.
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.
Reference Designs (5)
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 |
|---|---|---|---|---|
| AD8031ANZ | Material Declaration | Reliability Data | 8-Lead PDIP | |
| AD8031ARTZ-R2 | Material Declaration | Reliability Data | 5-Lead SOT-23 | |
| AD8031ARTZ-REEL7 | Material Declaration | Reliability Data | 5-Lead SOT-23 | |
| AD8031ARZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD8031ARZ-REEL | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD8031ARZ-REEL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD8031BNZ | Material Declaration | Reliability Data | 8-Lead PDIP | |
| AD8031BRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD8031BRZ-REEL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD8031 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
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.