Overview
The ADA4891-2ARMZ-RL is a high-performance, dual operational amplifier produced by Analog Devices Inc. This component is designed to offer high speed and fast settling times at a low cost, making it an ideal choice for various industrial and consumer applications. The ADA4891-2ARMZ-RL features a CMOS architecture, providing true single-supply capability and a wide input voltage range that extends 300 mV below the negative rail. The rail-to-rail output stage allows the output to swing within 50 mV of each rail, enabling maximum dynamic range.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Amplifier Type | Voltage Feedback Amplifier | |||
| Output Type | Rail-to-Rail | |||
| Package / Case | MSOP-8 | |||
| Number of Channels | 2 Channel | |||
| Supply Voltage - Max | 5.5 V | V | ||
| Supply Voltage - Min | 2.7 V | V | ||
| GBP - Gain Bandwidth Product | 220 MHz | MHz | ||
| SR - Slew Rate | 170 V/μs | V/μs | ||
| Vos - Input Offset Voltage | ±2.5 mV | mV | ||
| Output Current per Channel | 125 mA | mA | ||
| Minimum Operating Temperature | -40°C | °C | ||
| Maximum Operating Temperature | +125°C | °C | ||
| Ib - Input Bias Current | ±50 pA | pA | ||
| Operating Supply Current | 4.4 mA | mA | ||
| CMRR - Common Mode Rejection Ratio | 71 dB | dB | ||
| PSRR - Power Supply Rejection Ratio | 65 dB | dB |
Key Features
- High Speed and Fast Settling: The ADA4891-2ARMZ-RL features a high gain bandwidth product of 220 MHz and a slew rate of 170 V/μs, ensuring fast settling times of 28 ns to 0.1%.
- Rail-to-Rail Output: The amplifier's output stage can swing within 50 mV of each rail, providing maximum dynamic range.
- Low Cost and High Performance: Despite its low cost, the ADA4891-2ARMZ-RL offers high performance and versatility, making it suitable for a wide range of applications.
- Single-Supply Capability: The amplifier operates with a single supply voltage ranging from 2.7 V to 5.5 V.
- Low Distortion and Noise: The component exhibits low harmonic distortion and noise, making it ideal for video and active filter applications.
- Compact Packaging: Available in an 8-lead MSOP package, making it suitable for space-constrained designs.
Applications
- Imaging Applications: Ideal for consumer video, CCD buffers, and contact image sensor buffers due to its high speed and low distortion.
- Active Filter Applications: The fast settling time and low distortion make it suitable for active filter designs.
- Automotive Applications: Qualified for automotive use, offering reliability and performance in demanding environments.
- General Purpose Amplification: Can be used in various general-purpose amplification tasks requiring high speed and low noise.
Q & A
- What is the gain bandwidth product of the ADA4891-2ARMZ-RL?
The gain bandwidth product is 220 MHz for a gain of +1.
- What is the slew rate of the ADA4891-2ARMZ-RL?
The slew rate is 170 V/μs.
- What is the input offset voltage of the ADA4891-2ARMZ-RL?
The input offset voltage is ±2.5 mV.
- What is the operating supply voltage range of the ADA4891-2ARMZ-RL?
The operating supply voltage range is from 2.7 V to 5.5 V.
- What is the maximum output current per channel of the ADA4891-2ARMZ-RL?
The maximum output current per channel is 125 mA.
- What is the common mode rejection ratio (CMRR) of the ADA4891-2ARMZ-RL?
The CMRR is 71 dB.
- What is the power supply rejection ratio (PSRR) of the ADA4891-2ARMZ-RL?
The PSRR is 65 dB.
- In what package is the ADA4891-2ARMZ-RL available?
The ADA4891-2ARMZ-RL is available in an 8-lead MSOP package.
- What are some typical applications of the ADA4891-2ARMZ-RL?
Typical applications include imaging, active filters, and general-purpose amplification.
- Is the ADA4891-2ARMZ-RL qualified for automotive applications?
Yes, the ADA4891-2ARMZ-RL is qualified for automotive applications.
