Overview
The ADA4891-4ARUZ is a quad, low-cost CMOS high-speed operational amplifier produced by Analog Devices Inc. This amplifier is designed to offer high performance at an affordable price, featuring true single-supply capability and rail-to-rail input and output stages. It is particularly suited for applications requiring high signal integrity and dynamic range, such as imaging, consumer video, and active filter circuits.
Key Specifications
| Parameter | Value |
|---|---|
| Amplifier Type | Voltage Feedback Amplifier |
| Output Type | Rail-to-Rail |
| Package / Case | 14-Pin TSSOP |
| Number of Channels | 4 Channel |
| Supply Voltage - Min | 2.7 V |
| Supply Voltage - Max | 5.5 V |
| GBP - Gain Bandwidth Product | 105 MHz |
| SR - Slew Rate | 210 V/us |
| Vos - Input Offset Voltage | 2.5 mV |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
| Ib - Input Bias Current | 50 pA |
| Operating Supply Current | 17.6 mA |
| CMRR - Common Mode Rejection Ratio | 88 dB |
| en - Input Voltage Noise Density | 9 nV/sqrt Hz |
| PSRR - Power Supply Rejection Ratio | 65 dB (Typ) |
Key Features
- Rail-to-rail input and output stages, enabling maximum dynamic range and compatibility with a wide range of input signals.
- High gain bandwidth product of 105 MHz and a slew rate of 210 V/us, making it suitable for high-speed applications.
- Low input offset voltage of 2.5 mV and low input bias current of 50 pA, ensuring high accuracy and minimal signal distortion.
- High common mode rejection ratio (CMRR) of 88 dB and power supply rejection ratio (PSRR) of 65 dB, providing robust performance against common-mode and power supply noise.
- Operating temperature range from -40°C to +125°C, making it versatile for various environmental conditions.
- CMOS technology for low power consumption and high reliability.
Applications
- Imaging applications, such as consumer video, CCD buffers, and contact image sensor buffers.
- Automotive infotainment systems and driver assistance systems.
- Active filter circuits due to its low distortion and fast settling time.
- Coaxial cable drivers, clock buffers, and photodiode preamps.
Q & A
- What is the ADA4891-4ARUZ amplifier type?
The ADA4891-4ARUZ is a voltage feedback amplifier.
- What is the package type of the ADA4891-4ARUZ?
The ADA4891-4ARUZ comes in a 14-Pin TSSOP package.
- How many channels does the ADA4891-4ARUZ have?
The ADA4891-4ARUZ is a quad-channel amplifier.
- What is the gain bandwidth product of the ADA4891-4ARUZ?
The gain bandwidth product of the ADA4891-4ARUZ is 105 MHz.
- What is the slew rate of the ADA4891-4ARUZ?
The slew rate of the ADA4891-4ARUZ is 210 V/us.
- What is the input offset voltage of the ADA4891-4ARUZ?
The input offset voltage of the ADA4891-4ARUZ is 2.5 mV.
- What is the operating temperature range of the ADA4891-4ARUZ?
The operating temperature range of the ADA4891-4ARUZ is from -40°C to +125°C.
- What are some common applications of the ADA4891-4ARUZ?
The ADA4891-4ARUZ is commonly used in imaging applications, automotive systems, active filters, and as coaxial cable drivers and photodiode preamps.
- Is the ADA4891-4ARUZ RoHS compliant?
Yes, the ADA4891-4ARUZ is RoHS compliant.
- What is the typical power supply rejection ratio (PSRR) of the ADA4891-4ARUZ?
The typical power supply rejection ratio (PSRR) of the ADA4891-4ARUZ is 65 dB.
