Overview
The ADA4950-2YCPZ-R7 is a high-performance, low-power differential ADC driver produced by Analog Devices Inc. This component is part of the ADA4950 series, which includes gain-selectable versions of the ADA4932 series with on-chip feedback and gain resistors. It is designed to drive high-performance analog-to-digital converters (ADCs) and is suitable for various data acquisition and signal processing applications.
The ADA4950-2 features a 3 dB bandwidth of 750 MHz, a slew rate of 2900 V/μs, and low harmonic distortion, making it ideal for high-speed and high-accuracy signal processing. The device operates over a wide temperature range of -40°C to +105°C and can be powered from +3 V to ±5 V supplies.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 24-Lead LFCSP (4mm x 4mm w/ EP) |
| Number of Channels | 2 |
| Bandwidth (3 dB) | 750 MHz (G = 1) |
| Slew Rate | 2900 V/μs |
| Input Offset Voltage (Vos) | ±0.2 mV typical |
| Power Supply Rejection Ratio (PSRR) | 84 dB |
| Common Mode Rejection Ratio (CMRR) | 49 dB |
| Supply Voltage | +3 V to ±5 V |
| Operating Temperature Range | -40°C to +105°C |
| Current Consumption per Channel | 9.5 mA |
Key Features
- High performance at low power consumption.
- High speed with a 3 dB bandwidth of 750 MHz and a slew rate of 2900 V/μs.
- Selectable differential gains of 1, 2, and 3.
- Differential-to-differential or single-ended-to-differential operation.
- Adjustable output common-mode voltage.
- Low harmonic distortion and low output voltage noise (9.2 nV/√Hz at G = 1).
- Wide supply range: +3 V to ±5 V.
- Available in a Pb-free, 24-lead LFCSP package.
Applications
- ADC drivers for high-performance analog-to-digital converters.
- Single-ended-to-differential converters.
- IF and baseband gain blocks.
- Differential buffers.
- Line drivers.
Q & A
- What is the ADA4950-2YCPZ-R7 used for?
The ADA4950-2YCPZ-R7 is used as a differential ADC driver, ideal for driving high-performance analog-to-digital converters (ADCs) and other signal processing applications.
- What are the key specifications of the ADA4950-2YCPZ-R7?
Key specifications include a 3 dB bandwidth of 750 MHz, a slew rate of 2900 V/μs, input offset voltage of ±0.2 mV, and operation over a temperature range of -40°C to +105°C.
- What package options are available for the ADA4950-2?
The ADA4950-2 is available in a Pb-free, 24-lead LFCSP package (4mm x 4mm w/ EP).
- What are the power supply requirements for the ADA4950-2?
The device can be powered from +3 V to ±5 V supplies.
- What is the typical current consumption per channel?
The typical current consumption per channel is 9.5 mA.
- What are the selectable gain configurations for the ADA4950-2?
The ADA4950-2 offers selectable differential gains of 1, 2, and 3.
- How does the ADA4950-2 handle output common-mode voltage?
The output common-mode voltage is user-adjustable via an internal common-mode feedback loop.
- What is the operating temperature range of the ADA4950-2?
The operating temperature range is -40°C to +105°C.
- What are some common applications of the ADA4950-2?
Common applications include ADC drivers, single-ended-to-differential converters, IF and baseband gain blocks, differential buffers, and line drivers.
- What is the significance of the low harmonic distortion in the ADA4950-2?
The low harmonic distortion (e.g., 108 dB SFDR @ 10 MHz) ensures high signal fidelity and accuracy in signal processing applications.
