Overview
The ADA4891-3ARUZ-RL is a high-speed, rail-to-rail operational amplifier produced by Analog Devices Inc. This device is part of the ADA4891 series, known for its high bandwidth, fast settling time, and low noise characteristics. It is particularly suited for applications requiring high speed and precision, such as video processing, instrumentation, and high-frequency signal amplification.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| −3 dB Small-Signal Bandwidth (G = +1) | - | 220 | - | MHz |
| Slew Rate (G = +2) | - | 210 | - | V/μs |
| Settling Time to 0.1% (G = +2) | - | 28 | - | ns |
| Input Bias Current | - | 2 | - | pA |
| Input Offset Voltage | - | 2.5 | - | mV |
| Supply Voltage (Single/Dual) | 2.7 | - | 5.5 | V, ±1.35 V ~ 2.75 V |
| Operating Temperature Range | -40 | - | 125 | °C |
| Output Type | - | Rail-to-Rail | - | - |
| Package/Case | - | 14-TSSOP | - | - |
Key Features
- High speed and fast settling time: −3 dB bandwidth of 220 MHz (G = +1) and slew rate of 210 V/μs.
- Rail-to-rail output stage, allowing the output to swing from the negative to the positive supply rail.
- Low input bias current of 2 pA and low input offset voltage of 2.5 mV.
- Qualified for automotive applications and operates over a wide temperature range of −40°C to +125°C.
- Supply voltage range of 2.7 V to 5.5 V (or ±1.35 V to ±2.75 V) and low supply current of 4.4 mA.
- High common-mode rejection ratio (CMRR) of 87 dB.
Applications
- Broadcasting and video processing due to its high bandwidth and fast settling time.
- Instrumentation and measurement circuits, such as Wheatstone bridge measurements and semiconductor detectors.
- Active probes and signal transformation in various electronic systems.
- Multimedia playback equipment and image computer boards.
- Power generators and other high-frequency signal amplification applications).
Q & A
- What is the typical −3 dB bandwidth of the ADA4891-3ARUZ-RL at a gain of +1?
The typical −3 dB bandwidth is 220 MHz at a gain of +1).
- What is the slew rate of the ADA4891-3ARUZ-RL?
The slew rate is 210 V/μs).
- What is the settling time to 0.1% for the ADA4891-3ARUZ-RL?
The settling time to 0.1% is 28 ns).
- What is the input bias current of the ADA4891-3ARUZ-RL?
The input bias current is 2 pA).
- What is the operating temperature range of the ADA4891-3ARUZ-RL?
The operating temperature range is −40°C to +125°C).
- What is the package type of the ADA4891-3ARUZ-RL?
The package type is 14-TSSOP).
- Is the ADA4891-3ARUZ-RL qualified for automotive applications?
Yes, it is qualified for automotive applications).
- What are some common applications of the ADA4891-3ARUZ-RL?
Common applications include broadcasting, instrumentation, active probes, and multimedia playback equipment).
- What is the supply voltage range for the ADA4891-3ARUZ-RL?
The supply voltage range is 2.7 V to 5.5 V (or ±1.35 V to ±2.75 V)).
- What is the common-mode rejection ratio (CMRR) of the ADA4891-3ARUZ-RL?
The CMRR is 87 dB).
