The ADA4899-1 is an ultralow noise (1 nV/√Hz) and distortion (<−117 dBc @1 MHz) unity-gain stable voltage feedback op amp, the combination of which makes it ideal for 16-bit and 18-bit systems. The ADA4899-1 features a linear, low noise input stage and internal compensation that achieves high slew rates and low noise even at unity gain. The Analog Devices, Inc. proprietary next-generation XFCB process and innovative circuit design enable such high performance amplifiers.
The ADA4899-1 drives 100 Ω loads at breakthrough performance levels with only 15 mA of supply current. With the wide supply voltage range (4.5 V to 12 V), low offset voltage (230 μV maxi-mum), wide bandwidth (600 MHz), and slew rate (310 V/μs), the ADA4899-1 is designed to work in the most demanding applications. The ADA4899-1 also features an input bias current cancellation mode that reduces input bias current by a factor of 60.
The ADA4899-1 is available in a 3 mm × 3 mm LFCSP and an 8-lead SOIC package. Both packages feature an exposed metal paddle that improves heat transfer to the ground plane, which is a significant improvement over traditional plastic packages. The ADA4899-1 is rated to work over the extended industrial temperature range, −40°C to +125°C.
ADA4899-1 is named as one of the hot 100 products of 2006: Built by and for electronics engineers, this list distills the most innovative and significant products of the year, including process technologies, power sources, processor cores, communication controllers, test instruments, embedded boards, EDA tools, and more.For additional ADI Healthcare Products and related information, please visit www.analog.com/healthcare
|Title||Content Type||File Type|
|ADA4899-1: Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp Data Sheet (Rev B, 06/2007) (pdf, 643 kB)||Data Sheets|
|AN-0993: Active Filter Evaluation Board for Analog Devices, Inc., - Low Distortion Pinout Op Amps (pdf, 107 kB)||Application Notes|
AN-931: Understanding PulSAR ADC Support Circuitry
(pdf, 299 kB)
This application note discusses in general the pitfalls that occur regularly when using SAR ADCs and, more importantly, how to easily prevent them.
|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-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-202: An IC Amplifier User’s Guide to Decoupling, Grounding, and Making Things Go Right for a Change (pdf, 76 kB)||Application Notes|
|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-083: Evaluation Board User Guide for Single, High Speed Operational Amplifiers
(8-Lead, 3 mm × 3 mm LFCSP with Dedicated Feedback Pin) (pdf, 209 kB)
UG-084: Evaluation Board for Single, High Speed Operational Amplifiers
(8-Lead, SOIC with Dedicated Feedback Pin and Exposed Paddle) (pdf, 243 kB)
The Hot 100 products of 2006
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|
|RAQs index||Rarely Asked Questions||HTML|
|I've noticed a new pinout on some of your high-speed op amps. Why the change after all these years?||FAQs/RAQs||HTML|
|What's the difference between, power-down, shutdown, standby, sleep mode or disable?||FAQs/RAQs||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.
|ADA4899 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.