Overview
The ADA4091-4ACPZ-R7 is a quad operational amplifier from Analog Devices Inc., designed for general-purpose applications. It is part of the ADA4091 family, which includes micropower, single-supply amplifiers with rail-to-rail inputs and outputs. These amplifiers are known for their low power consumption and high performance, making them suitable for a variety of applications, including battery-powered devices and systems requiring low noise and high accuracy.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | -400 | -40 | 400 | µV |
| Offset Voltage Drift | ∆VOS/∆T | 2.5 | µV/°C | ||
| Input Bias Current | IB | -55 | -44 | 55 | nA |
| Input Offset Current | IOS | -3 | 0.5 | 3 | nA |
| Input Voltage Range | -1.5 | 1.5 | V | ||
| Common-Mode Rejection Ratio | CMRR | 78 | 100 | dB | |
| Large Signal Voltage Gain | AVO | 101 | 113 | dB | |
| Output Voltage High | VOH | 1.490 | 1.495 | V | |
| Output Voltage Low | VOL | -1.499 | -1.495 | V | |
| Short-Circuit Limit | ISC | ±31 | mA | ||
| Bandwidth | 1.2 | MHz |
Key Features
- Rail-to-Rail Inputs and Outputs: The ADA4091-4 allows input and output voltages to reach the supply rails, enhancing the dynamic range of the amplifier.
- Micropower Operation: Low power consumption makes it suitable for battery-powered applications.
- High Accuracy: Low offset voltage and drift ensure high precision in various applications.
- Input Stage Design: The unique input stage prevents phase reversal and latch-up, ensuring safe operation even when the input voltage exceeds the supply rails.
- Low Noise and High CMRR: High common-mode rejection ratio and low noise characteristics make it ideal for applications requiring high signal integrity.
Applications
- Battery-Powered Devices: Suitable for portable electronics and other battery-powered systems due to its low power consumption.
- Industrial Automation: Can be used in industrial control systems where high accuracy and reliability are required.
- Medical Devices: Applicable in medical equipment where low noise and high precision are critical.
- Audio Systems: Ideal for audio applications requiring low noise and high dynamic range.
Q & A
- What is the bandwidth of the ADA4091-4? The bandwidth of the ADA4091-4 is 1.2 MHz.
- What is the typical offset voltage of the ADA4091-4? The typical offset voltage is -40 µV.
- Does the ADA4091-4 have rail-to-rail inputs and outputs? Yes, it features rail-to-rail inputs and outputs.
- What is the common-mode rejection ratio (CMRR) of the ADA4091-4? The CMRR is typically 100 dB.
- Is the ADA4091-4 suitable for battery-powered devices? Yes, it is suitable due to its micropower operation.
- What is the short-circuit limit of the ADA4091-4? The short-circuit limit is ±31 mA.
- Does the ADA4091-4 have phase inversion issues? No, it is designed to prevent phase reversal and latch-up.
- What is the input bias current of the ADA4091-4? The input bias current is typically -44 nA.
- What are the operating temperature ranges for the ADA4091-4? The operating temperature range is -40°C to +125°C.
- What package options are available for the ADA4091-4? It is available in a 16-lead LFCSP package.
