AD9631
PRODUCTIONUltralow Distortion, High Speed Op Amp, Stable at Gain of 1
- Part Models
- 5
- 1ku List Price
- Starting From $6.43
Part Details
- Wide Bandwidth
AD9631, G = +1
Small signal
320 MHz
Large signal (4 V p-p)
175 MHz - Ultralow Distortion (SFDR), Low Noise
−113 dBc Typ @ 1 MHz
−95 dBc Typ @ 5 MHz
−72 dBc Typ @ 20 MHz
46 dBm Third Order Intercept @ 25 MHz
7.0 nV/√Hz Spectral Noise Density - High Speed
Slew Rate 1300 V/µs
Settling 16 ns to 0.01%, 2 V Step
±3 V to ±5 V Supply Operation
17 mA Supply Current
The AD9631/AD9632 are very high speed and wide bandwidth amplifiers. The AD9631 is unity gain stable. The AD9632 is stable at gains of 2 or greater. Using a voltage feedback architecture, the exceptional settling time, bandwidth, and low distortion of the AD9631/AD9632 meet the requirements of many applications that previously depended on current feedback amplifiers. Its classical op amp structure works much more predictably in many designs.
A proprietary design architecture has produced an amplifier that combines many of the best characteristics of both current feedback and voltage feedback amplifiers. The AD9631/AD9632 exhibit exceptionally fast and accurate pulse response (16 ns to 0.01%) as well as extremely wide small signal and large signal bandwidth and ultralow distortion. The AD9631 achieves −72 dBc at 20 MHz, 320 MHz small signal bandwidth, and 175 MHz large signal bandwidths.
These characteristics position the AD9631/AD9632 ideally for driving flash as well as high resolution ADCs. Additionally, the balanced high impedance inputs of the voltage feedback architecture allow maximum flexibility when designing active filters.
The AD9631/AD9632 are offered in the industrial (−40°C to +85°C) temperature range. They are available in PDIP and SOIC.
APPLICATIONS
- ADC input driver
- Differential amplifiers IF/RF amplifiers
- Pulse amplifiers
- Professional video
- DAC current to voltage
- Baseband and video communications
- Pin diode receivers
- Active filters/integrators/log amps
Documentation
Data Sheet 1
User Guide 1
Application Note 6
Tutorial 12
Analog Dialogue 4
Webcast 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9631ACHIPS | none available | ||
| AD9631ANZ | 8-Lead PDIP | ||
| AD9631ARZ | 8-Lead SOIC | ||
| AD9631ARZ-REEL | 8-Lead SOIC | ||
| AD9631ARZ-REEL7 | 8-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 19, 2009 - 07_0024 Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad |
||
| AD9631ANZ | PRODUCTION | |
|
Apr 21, 2021 - 21_0080 Amkor Philippines as an Alternate Site for SOICN |
||
| AD9631ARZ | PRODUCTION | |
| AD9631ARZ-REEL | PRODUCTION | |
| AD9631ARZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
SPICE Model 1
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.
Open ToolAnalog 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.
Open ToolAnalog 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.
Open ToolVRMS/dBm/dBu/dBV calculators
A utility to convert between standard units of power measurement and signal strength.
Open ToolEvaluation Kits
Universal Evaluation Board for Single High Speed Operational Amplifiers