Overview
The ADA4939-2YCPZ-R2 is a high-performance, dual-channel differential amplifier designed by Analog Devices Inc. It is part of the ADA4939 series, known for its low noise, ultralow distortion, and high-speed capabilities. This amplifier is particularly suited for driving high-performance Analog-to-Digital Converters (ADCs) with resolutions up to 16 bits, operating from DC to 100 MHz. The ADA4939-2YCPZ-R2 features an internal common-mode feedback loop, which allows the output common-mode voltage to be user-adjustable, ensuring compatibility with the input of the ADC. This design also enhances output balance and suppresses even-order harmonic distortion products.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 24-Lead LFCSP (4mm x 4mm x 0.75mm with EP) |
| Operating Temperature Range | −40°C to +105°C |
| Supply Voltage Range | 3.3 V to 5 V |
| Input Voltage Noise | 2.3 nV/√Hz |
| Differential Gain Configuration | Simple external four-resistor feedback network |
| Output Common-Mode Voltage Adjustment | User-adjustable via internal common-mode feedback loop |
| Harmonic Distortion Suppression | Exceptional suppression of even-order harmonic distortion products |
Key Features
- Low noise and ultralow distortion, making it ideal for high-performance ADC applications.
- High-speed operation from DC to 100 MHz.
- User-adjustable output common-mode voltage via an internal common-mode feedback loop.
- Simple external four-resistor feedback network for differential gain configuration.
- Exceptional output balance and suppression of even-order harmonic distortion products.
- Fabricated using Analog Devices' proprietary silicon-germanium (SiGe) complementary bipolar process.
- Optimized pinouts to facilitate PCB layout and minimize distortion.
Applications
The ADA4939-2YCPZ-R2 is well-suited for a wide variety of data acquisition and signal processing applications. It is particularly useful in driving high-performance ADCs in various systems, including medical imaging, test and measurement equipment, and high-speed data acquisition systems.
Q & A
- What is the primary application of the ADA4939-2YCPZ-R2? The primary application is driving high-performance Analog-to-Digital Converters (ADCs) in data acquisition and signal processing systems.
- What is the operating temperature range of the ADA4939-2YCPZ-R2? The operating temperature range is −40°C to +105°C.
- What is the supply voltage range for the ADA4939-2YCPZ-R2? The supply voltage range is 3.3 V to 5 V.
- How is the output common-mode voltage adjusted in the ADA4939-2YCPZ-R2? The output common-mode voltage is user-adjustable via an internal common-mode feedback loop.
- What is the input voltage noise of the ADA4939-2YCPZ-R2? The input voltage noise is 2.3 nV/√Hz.
- What process is used to fabricate the ADA4939-2YCPZ-R2? It is fabricated using Analog Devices' proprietary silicon-germanium (SiGe) complementary bipolar process.
- How is the differential gain configuration achieved in the ADA4939-2YCPZ-R2? The differential gain configuration is achieved with a simple external four-resistor feedback network.
- What package type is the ADA4939-2YCPZ-R2 available in? It is available in a 24-Lead LFCSP (4mm x 4mm x 0.75mm with EP).
- Does the ADA4939-2YCPZ-R2 support high-speed operations? Yes, it supports high-speed operations from DC to 100 MHz.
- What are the key benefits of the internal common-mode feedback loop in the ADA4939-2YCPZ-R2? The internal common-mode feedback loop provides exceptional output balance and suppression of even-order harmonic distortion products.
