ADA4950-1
Low Power Selectable Gain Differential ADC Driver, G = 1, 2, 3
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Features
- High performance at low power
- High speed
-3 dB bandwidth of 750 MHz, G = 1
0.1 dB flatness to 210 MHz, VOUT, dm = 2 V p-p, RL, dm = 200 Ω
Slew rate: 2900 V/µs, 25% to 75%
Fast 0.1% settling time of 9 ns - Low power: 9.5 mA per amplifier
- Low harmonic distortion
108 dB SFDR @ 10 MHz
98 dB SFDR @ 20 MHz - Low output voltage noise: 9.2 nV/√Hz, G = 1, RTO
- ±0.2 mV typical input offset voltage
- Selectable differential gains of 1, 2, and 3
- Differential-to-differential or single-ended-to-differential operation
- Adjustable output common-mode voltage
- Input common-mode range shifted down by one VBE
- Wide supply range: +3 V to ±5 V
- Available in 16-lead and 24-lead LFCSP packages
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Differential gain configurations of 1, 2, and 3 are easily realized with internal feedback networks that are connected externally to set the closed-loop gain of the amplifier.
The ADA4950-1/ADA4950-2 are fabricated using the Analog Devices, Inc., proprietary silicon-germanium (SiGe) complementary bipolar process, enabling them to achieve low levels of distortion and noise at low power consumption. The low offset and excellent dynamic performance of the ADA4950-x make it well suited for a wide variety of data acquisition and signal processing applications.
The ADA4950-x is available in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP (ADA4950-1, single) or a Pb-free 4 mm × 4 mm, 24-lead LFCSP (ADA4950-2, dual). The pinout has been optimized to facilitate PCB layout and minimize distortion. The ADA4950-1/ADA4950-2 are specified to operate over the -40°C to +105°C temperature range; both operate on supplies from +3 V to ±5 V.
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ADA4950-1
Documentation
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User Guide
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Documentation
Data Sheet 1
User Guide 1
Application Note 6
AN-282: Fundamentals of Sampled Data Systems
AN-589: Ways to Optimize the Performance of a Difference Amplifier (Rev.B)
AN-584: Using the AD813X Differential Amplifier (Rev.0)
AN-0992: Active Filter Evaluation Board for Differential Amplifiers
AN-0990: Terminating a Differential Amplifier in Single-Ended Input Applications
AN-1026: High Speed Differential ADC Driver Design Considerations
Tutorial 3
Analog Dialogue 3
Rarely Asked Question Page 3
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 |
|---|---|---|---|
| ADA4950-1YCPZ-R7 |
16-Lead LFCSP (3mm x 3mm w/ EP)
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| ADA4950-1YCPZ-RL |
16-Lead LFCSP (3mm x 3mm w/ EP)
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- ADA4950-1YCPZ-R7
- Pin/Package Drawing
-
16-Lead LFCSP (3mm x 3mm w/ EP)
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- ADA4950-1YCPZ-RL
- Pin/Package Drawing
-
16-Lead LFCSP (3mm x 3mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Feb 13, 2014
- 14_0038
Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.
ADA4950-1YCPZ-R7
PRODUCTION
ADA4950-1YCPZ-RL
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Feb 13, 2014
- 14_0038
Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.
ADA4950-1YCPZ-R7
PRODUCTION
ADA4950-1YCPZ-RL
PRODUCTION
Software & Part Ecosystem
Evaluation Kits 1
EVAL-ADA4950-1
ADA4950-1 Evaluation Board
Product Detail
These evaluation boards are designed to help users evaluate the ADA4950-1. The evaluation board is a BARE BOARD. There are no components or amplifiers soldered to the board. These parts must be obtained separately from the table below or on the product page. Free samples may also be requested. The unpopulated board enables users to quickly customize and prototype a variety of op amp circuits, which minimizes risk and reduces time to market.
The User Guide contains all the required documentation to build the board, including schematics, assembly drawing, and Bill of Materials.
Evaluation Kits1
Tools & Simulations 2
SPICE Model 1
SPICE Model
ADI DiffAmpCalc™
