Overview
The ADA4927-2YCPZ-R7 is a low noise, ultralow distortion, high speed, current feedback differential amplifier produced by Analog Devices Inc. It is specifically designed to drive high performance Analog-to-Digital Converters (ADCs) with resolutions up to 16 bits from dc to 100 MHz. The amplifier features an internal common-mode feedback loop that provides exceptional output balance and suppression of even-order distortion products. Fabricated using Analog Devices' silicon-germanium complementary bipolar process, the ADA4927-2YCPZ-R7 achieves very low levels of distortion with an input voltage noise of only 1.3 nV/√Hz, making it ideal for various data acquisition and signal processing applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Voltage Noise | 1.3 nV/√Hz | - |
| Bandwidth | Up to 100 MHz | - |
| Supply Voltage Range | 3.3 V to 5 V | - |
| Operating Temperature Range | -40°C to +105°C | - |
| Package Type | 24-Lead LFCSP (4mm x 4mm w/ EP) | - |
| Input Common-Mode Range | -3.5 V to +3.5 V (dual supply), +1.3 V to +3.7 V (single +5 V supply) | - |
| Output Common-Mode Voltage | Adjustable via VOCM pin | - |
Key Features
- Low noise and ultralow distortion, making it suitable for high performance ADCs.
- High speed operation up to 100 MHz.
- Current feedback architecture providing wide bandwidth and low distortion.
- Internal common-mode feedback loop for exceptional output balance and suppression of even-order distortion products.
- Differential gain configurations easily realized with an external feedback network of four resistors.
- Low dc offset and excellent dynamic performance.
- Optimized pinout for PCB layout and minimal distortion.
Applications
The ADA4927-2YCPZ-R7 is well-suited for a wide variety of data acquisition and signal processing applications, including:
- Driving high performance ADCs with resolutions up to 16 bits.
- High-speed data acquisition systems.
- Signal processing in medical, industrial, and automotive environments.
- Applications requiring low noise and low distortion signal amplification.
Q & A
- What is the primary application of the ADA4927-2YCPZ-R7?
The ADA4927-2YCPZ-R7 is primarily used for driving high performance Analog-to-Digital Converters (ADCs) with resolutions up to 16 bits from dc to 100 MHz.
- What is the input voltage noise of the ADA4927-2YCPZ-R7?
The input voltage noise of the ADA4927-2YCPZ-R7 is 1.3 nV/√Hz.
- What is the operating temperature range of the ADA4927-2YCPZ-R7?
The operating temperature range is -40°C to +105°C.
- What package types are available for the ADA4927-2YCPZ-R7?
The ADA4927-2YCPZ-R7 is available in a 24-Lead LFCSP (4mm x 4mm w/ EP) package.
- How is the output common-mode voltage adjusted in the ADA4927-2YCPZ-R7?
The output common-mode voltage is adjusted via the VOCM pin.
- What is the significance of the current feedback architecture in the ADA4927-2YCPZ-R7?
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.
- Can the ADA4927-2YCPZ-R7 be used in single-supply configurations?
- How does the ADA4927-2YCPZ-R7 handle input and output capacitive AC coupling?
Input and output AC coupling capacitors can be used to block DC common-mode feedback current and to isolate the driver outputs from the ADC inputs, as shown in Figure 58 of the datasheet.
- What are the key benefits of using the ADA4927-2YCPZ-R7 in data acquisition systems?
The key benefits include low noise, ultralow distortion, high speed operation, and excellent dynamic performance, making it ideal for high precision data acquisition.
- Is the ADA4927-2YCPZ-R7 suitable for automotive applications?
