Overview
The ADA4891-1ARJZ-R7 is a high-performance, low-cost CMOS operational amplifier produced by Analog Devices Inc. This single-channel amplifier is part of the ADA4891 family, known for its high speed, rail-to-rail output, and versatility. It is designed to operate over a wide supply range, making it suitable for various applications requiring high performance and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| -3db Bandwidth | 240 MHz (G = +1), 90 MHz (G = +2, RL = 150 Ω) | MHz |
| Amplifier Type | Standard | |
| Common Mode Rejection Ratio | 88 dB | dB |
| Input Voltage-Noise Density | 9 nV/√Hz | nV/√Hz |
| Maximum Dual Supply Voltage | ±2.75 V | V |
| Maximum Input Bias Current | 50 pA | pA |
| Maximum Offset Voltage | 10 mV | mV |
| Maximum Operating Temperature | 125°C | °C |
| Maximum Single Supply Voltage | 5.5 V | V |
| Maximum Supply Current | 4.4 mA (Typ) | mA |
| Minimum Dual Supply Voltage | ±1.35 V | V |
| Minimum Operating Temperature | -40°C | °C |
| Minimum Single Supply Voltage | 2.7 V | V |
| Number of Channels | 1 | |
| Op Amp Category | General Purpose | |
| Output Current | 125 mA | mA |
| Output Type | Single-Ended | |
| Package Type | SOT-23-5 | |
| Power Supply Rejection Ratio | 65 dB | dB |
| Rail-to-Rail | Output | |
| Slew Rate | 210 V/µs | V/µs |
Key Features
- High Speed and Fast Settling: The ADA4891-1ARJZ-R7 features a -3 dB bandwidth of 240 MHz and a slew rate of 210 V/µs, making it suitable for high-speed applications.
- Rail-to-Rail Output: The amplifier can swing its output within 50 mV of each supply rail, enabling maximum dynamic range.
- Low Power Consumption: It operates with a quiescent current of 4.4 mA per amplifier, making it energy-efficient.
- Wide Supply Range: The amplifier can operate on a single supply from 2.7 V to 5.5 V or dual supplies from ±1.35 V to ±2.75 V.
- Low Distortion and Noise: It offers high performance with low harmonic distortion and a low input voltage noise density of 9 nV/√Hz.
- High Common Mode Rejection Ratio (CMRR): With a CMRR of 88 dB, it provides excellent common-mode rejection.
Applications
- Automotive Systems: Suitable for automotive infotainment and driver assistance systems.
- Imaging Applications: Ideal for consumer video, CCD buffers, and contact image sensor buffers.
- Active Filters: Its low distortion and fast settling time make it suitable for active filter applications.
- Coaxial Cable Drivers and Clock Buffers: Used in applications requiring high-speed signal transmission and buffering).
- Photodiode Preamp and Contact Image Sensor Buffers: Suitable for applications requiring high sensitivity and low noise).
Q & A
- What is the ADA4891-1ARJZ-R7?
The ADA4891-1ARJZ-R7 is a single-channel, high-speed CMOS operational amplifier produced by Analog Devices Inc.
- What is the typical -3 dB bandwidth of the ADA4891-1ARJZ-R7?
The typical -3 dB bandwidth is 240 MHz for a gain of +1 and 90 MHz for a gain of +2 with a load resistance of 150 Ω.
- What is the slew rate of the ADA4891-1ARJZ-R7?
The slew rate is 210 V/µs).
- What is the input voltage noise density of the ADA4891-1ARJZ-R7?
The input voltage noise density is 9 nV/√Hz).
- What is the maximum output current of the ADA4891-1ARJZ-R7?
The maximum output current is 125 mA).
- What is the operating temperature range of the ADA4891-1ARJZ-R7?
The operating temperature range is from -40°C to 125°C).
- What is the typical supply current of the ADA4891-1ARJZ-R7?
The typical supply current is 4.4 mA per amplifier).
- What are some common applications of the ADA4891-1ARJZ-R7?
Common applications include automotive systems, imaging applications, active filters, coaxial cable drivers, and clock buffers).
- What is the package type of the ADA4891-1ARJZ-R7?
The package type is SOT-23-5).
- Is the ADA4891-1ARJZ-R7 RoHS compliant?
Yes, the ADA4891-1ARJZ-R7 is RoHS compliant).
