Overview
The ADA4891-4WARUZ-R7 is a high-speed, rail-to-rail operational amplifier produced by Analog Devices Inc. This component is part of the ADA4891 family, which includes single, dual, triple, and quad amplifier configurations. The ADA4891-4 specifically is a quad amplifier, offering high performance at a low cost. It features true single-supply capability with an input voltage range that extends 300 mV below the negative rail, making it versatile for various applications. The amplifier is known for its high speed, fast settling time, and low distortion, making it suitable for a wide range of uses including automotive, imaging, and consumer video systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.7 | 5.5 | V | |
| Operating Temperature Range | -40 | 125 | °C | |
| -3 dB Small-Signal Bandwidth (G = +1) | 175 | MHz | ||
| Slew Rate | 170 | V/μs | ||
| Settling Time to 0.1% (G = +1) | 28 | ns | ||
| Input Capacitance | 3.2 | pF | ||
| Common-Mode Rejection Ratio (CMRR) | 87 | dB | ||
| Output Voltage Swing (RL = 1 kΩ to 1.5 V) | 0.01 | 2.98 | V | |
| Output Current (1% THD with 1 MHz, VO = 2 V p-p) | 37 | mA | ||
| Quiescent Current per Amplifier | 3.5 | mA | ||
| Power Supply Rejection Ratio (PSRR) Positive | 76 | dB |
Key Features
- High speed and fast settling time: -3 dB bandwidth of 220 MHz (G = +1) and slew rate of 170 V/μs.
- True single-supply capability with an input voltage range extending 300 mV below the negative rail.
- Rail-to-rail output stage enabling the output to swing within 50 mV of each rail.
- Low distortion: 79 dBc SFDR at 1 MHz.
- Low power consumption: 4.4 mA per amplifier.
- Qualified for automotive applications and operates over an extended temperature range of -40°C to +125°C.
Applications
- Automotive infotainment systems and driver assistance systems.
- Imaging applications such as consumer video, CCD buffers, and contact image sensor buffers.[
- Active filters and coaxial cable drivers.[
- Clock buffers and photodiode preamps.[
Q & A
- What is the operating temperature range of the ADA4891-4WARUZ-R7?
The operating temperature range is -40°C to +125°C.
- What is the supply voltage range for the ADA4891-4WARUZ-R7?
The supply voltage range is 2.7 V to 5.5 V.
- What is the -3 dB bandwidth of the ADA4891-4WARUZ-R7 at a gain of +1?
The -3 dB bandwidth is 175 MHz at a gain of +1.
- What is the slew rate of the ADA4891-4WARUZ-R7?
The slew rate is 170 V/μs.[
- What is the settling time to 0.1% for the ADA4891-4WARUZ-R7?
The settling time to 0.1% is 28 ns.[
- What is the output voltage swing for the ADA4891-4WARUZ-R7 with a load resistance of 1 kΩ to 1.5 V?
The output voltage swing is from 0.01 V to 2.98 V.[
- What is the quiescent current per amplifier for the ADA4891-4WARUZ-R7?
The quiescent current per amplifier is 3.5 mA.[
- Is the ADA4891-4WARUZ-R7 qualified for automotive applications?
Yes, it is qualified for automotive applications.[
- What are some common applications of the ADA4891-4WARUZ-R7?
Common applications include automotive infotainment and driver assistance systems, imaging, active filters, and coaxial cable drivers.[
- What is the package type for the ADA4891-4WARUZ-R7?
The package type is 14-lead TSSOP.[
