Overview
The ADA4891-2WARMZ-R7 is a high-speed, rail-to-rail operational amplifier produced by Analog Devices Inc. This dual-channel amplifier is part of the ADA4891 family, known for its high performance, low cost, and versatility. It features true single-supply capability with an input voltage range extending 300 mV below the negative rail, making it suitable for a wide range of applications. The ADA4891-2 is particularly noted for its high speed, fast settling time, and low distortion, making it ideal for video, imaging, and other high-frequency applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Package | 8-Lead MSOP |
| Operating Temperature Range | -40°C to +125°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Quiescent Current per Amplifier | 4.4 mA |
| Slew Rate | 170 V/μs |
| -3 dB Bandwidth (G = +1) | 220 MHz |
| Settling Time to 0.1% | 28 ns |
| Input Voltage Noise | 9 nV/√Hz at 1 MHz |
| Output Voltage Swing (RL = 1 kΩ) | 0.01 to 2.98 V |
| Output Current | 125 mA at -40 dBc |
| Common-Mode Rejection Ratio (CMRR) | 87 dB |
Key Features
- High speed and fast settling time: 220 MHz bandwidth and 28 ns settling time to 0.1%.
- Rail-to-rail input and output capability: Allows the amplifier to operate with single-supply voltages and output swings to within 50 mV of the supply rails.
- Low distortion: 79 dBc SFDR at 1 MHz.
- Low power consumption: 4.4 mA per amplifier.
- Wide supply range: 2.7 V to 5.5 V.
- Qualified for automotive applications.
Applications
- Automotive infotainment systems
- Automotive driver assistance systems
- Imaging
- Consumer video
- Active filters
- Coaxial cable drivers
- Clock buffers
- Photodiode preamp
- Contact image sensor and buffers.
Q & A
- What is the ADA4891-2WARMZ-R7 used for? The ADA4891-2WARMZ-R7 is a high-speed, rail-to-rail operational amplifier used in various applications such as automotive systems, imaging, consumer video, and more.
- What is the operating temperature range of the ADA4891-2WARMZ-R7? The operating temperature range is -40°C to +125°C.
- What is the supply voltage range for the ADA4891-2WARMZ-R7? The supply voltage range is 2.7 V to 5.5 V.
- What is the slew rate of the ADA4891-2WARMZ-R7? The slew rate is 170 V/μs.
- What is the -3 dB bandwidth of the ADA4891-2WARMZ-R7? The -3 dB bandwidth is 220 MHz for a gain of +1.
- How much quiescent current does each amplifier consume? Each amplifier consumes 4.4 mA of quiescent current.
- What is the output voltage swing for a 1 kΩ load? The output voltage swing is from 0.01 V to 2.98 V for a 1 kΩ load.
- Is the ADA4891-2WARMZ-R7 qualified for automotive applications? Yes, it is qualified for automotive applications.
- What is the common-mode rejection ratio (CMRR) of the ADA4891-2WARMZ-R7? The CMRR is 87 dB.
- What package type does the ADA4891-2WARMZ-R7 come in? It comes in an 8-Lead MSOP package.
