ADA4927-2
Ultralow Distortion Current Feedback Differential ADC Driver
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Features
- Extremely low harmonic distortion
- −105 dBc HD2 at 10 MHz
- −91 dBc HD2 at 70 MHz
- −87 dBc HD2 at 100 MHz
- −103 dBc HD3 at 10 MHz
- −98 dBc HD3 at 70 MHz
- −89 dBc HD3 at 100 MHz
- Better distortion at higher gains than VF amplifiers
- Low input voltage noise: 1.4 nV/√Hz
- High speed
- −3 dB bandwidth of 2.3 GHz
- 0.1 dB gain flatness: 150 MHz
- Slew rate: 5000 V/µs, 25% to 75%
- Fast 0.1% settling time: 10 ns
- Low input offset voltage: 0.3 mV typical
- Externally adjustable gain
- Stability and bandwidth controlled by feedback resistor
- See data sheet for additional features
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Differential gain configurations are easily realized using an external feedback network comprising four resistors. The current feedback architecture provides loop gain that is nearly independent of closed-loop gain, achieving wide bandwidth, low distortion, and low noise at higher gains and lower power consumption than comparable voltage feedback amplifiers.
The ADA4927 is fabricated using the Analog Devices, Inc., silicon-germanium complementary bipolar process, enabling very low levels of distortion with an input voltage noise of only 1.3 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4927 make it well suited for a wide variety of data acquisition and signal processing applications.
The ADA4927-1 is available in a Pb-free, 3 mm × 3 mm 16-lead LFCSP, and the ADA4927-2 is available in a Pb-free, 4 mm × 4 mm 24-lead LFCSP. The pinouts are optimized to facilitate printed circuit board (PCB) layout and to minimize distortion. They are specified to operate over the −40°C to +105°C temperature range.
Applications
- ADC drivers
- Single-ended-to-differential converters
- IF and baseband gain blocks
- Differential buffers
- Differential line drivers
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ADA4927-2
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Documentation
Data Sheet 1
User Guide 1
Application Note 6
AN-589: Ways to Optimize the Performance of a Difference Amplifier (Rev.B)
AN-584: Using the AD813X Differential Amplifier (Rev.0)
AN-282: Fundamentals of Sampled Data Systems
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
Rarely Asked Question Page 3
Analog Dialogue 1
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 |
|---|---|---|---|
| ADA4927-2YCPZ-R7 |
24-Lead LFCSP (4mm x 4mm w/ EP)
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| ADA4927-2YCPZ-RL |
24-Lead LFCSP (4mm x 4mm w/ EP)
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- ADA4927-2YCPZ-R7
- Pin/Package Drawing
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24-Lead LFCSP (4mm x 4mm 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
- ADA4927-2YCPZ-RL
- Pin/Package Drawing
-
24-Lead LFCSP (4mm x 4mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
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Part Models
Product Lifecycle
PCN
May 22, 2012
- 12_0063
Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea.
ADA4927-2YCPZ-R7
PRODUCTION
ADA4927-2YCPZ-RL
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
May 22, 2012
- 12_0063
Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea.
ADA4927-2YCPZ-R7
PRODUCTION
ADA4927-2YCPZ-RL
PRODUCTION
Software & Part Ecosystem
Evaluation Kits 1
EVAL-FDA-2
Evaluation Board for Dual High Speed Differential Amplifiers
Product Detail
Resources
Tools & Simulations 2
SPICE Model 1
SPICE Model
ADI DiffAmpCalc™
