ADA4937-2
RECOMMENDED FOR NEW DESIGNSUltralow Distortion Differential ADC Driver (Dual)
- Part Models
- 2
- 1ku List Price
- Starting From $6.70
Part Details
- Extremely low harmonic distortion (HD)
- −112 dBc HD2 at 10 MHz
- −84 dBc HD2 at 70 MHz
- −77 dBc HD2 at 100 MHz
- −102 dBc HD3 at 10 MHz
- −91 dBc HD3 at 70 MHz
- −84 dBc HD3 at 100 MHz
- Low input voltage noise: 2.2 nV/√Hz
- High speed
- −3 dB bandwidth of 1.9 GHz, G = 1
- Slew rate: 6000 V/μs, 25% to 75%
- Fast overdrive recovery of 1 ns
- 0.5 mV typical offset voltage
- Externally adjustable gain
- Differential-to-differential or single-ended-to-differential
- operation
- Adjustable output common-mode voltage
- Single-supply operation: 3.3 V to 5 V
The ADA4937-1 / ADA4937-2 are low noise, ultralow distortion, high speed differential amplifiers. They are an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 100 MHz. The adjustable level of the output common mode allows the ADA4937-1/ADA4937-2 to match the input of the ADC. The internal common-mode feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products.
With the ADA4937-1 / ADA4937-2, differential gain configurations are easily realized with a simple external feedback network of four resistors that determine the closed-loop gain of the amplifier.
The ADA4937-1 / ADA4937-2 are fabricated using Analog Devices, Inc., proprietary silicon-germanium (SiGe), complementary bipolar process, enabling them to achieve very low levels of distortion with an input voltage noise of only 2.2 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4937-1/ADA4937-2 make them well-suited for a wide variety of data acquisition and signal processing applications.
The ADA4937-1 / ADA4937-2 are available in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP (ADA4937-1, single) or a Pb-free, 4 mm × 4 mm, 24-lead LFCSP (ADA4937-2, dual). The pinout has been optimized to facilitate PCB layout and minimize distortion. The ADA4937-1 / ADA4937-2 are specified to operate over the automotive (−40°C to +105°C) temperature range and between 3.3 V and 5 V supplies.
Applications
Documentation
Data Sheet 1
User Guide 1
Application Note 4
Tutorial 3
Analog Dialogue 1
Rarely Asked Question Page 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 |
|---|---|---|---|
| ADA4937-2YCPZ-R7 | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) | ||
| ADA4937-2YCPZ-RL | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 5, 2014 - 14_0020 Conversion of 4x4mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines. |
||
| ADA4937-2YCPZ-R7 | PRODUCTION | |
| ADA4937-2YCPZ-RL | PRODUCTION | |
|
Jul 9, 2013 - 13_0139 Datasheet Change for ADA4937-1, ADA4937-2 |
||
| ADA4937-2YCPZ-R7 | PRODUCTION | |
| ADA4937-2YCPZ-RL | PRODUCTION | |
|
Feb 15, 2010 - 07_0061 LFCSP Package Manufacturing Line Transfer from Amkor Korea to Amkor PRC |
||
| ADA4937-2YCPZ-R7 | PRODUCTION | |
| ADA4937-2YCPZ-RL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- ADA4937
ADI DiffAmpCalc™
ADI's new ADI DiffAmpCalc™ is a free, downloadable calculator for designing differential amplifier circuits. The tool is easy to use and features an interactive user interface to quickly get you up and running.
Open ToolSignal Chain Designer - BETA
Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.
Open ToolSPICE Model 1
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.
Evaluation Kits
Evaluation Board for Dual High Speed Differential Amplifiers