Overview
The AD8647ARMZ is a dual, rail-to-rail, input and output operational amplifier produced by Analog Devices Inc. This general-purpose amplifier is designed for a wide range of applications requiring low noise, high bandwidth, and low power consumption. It operates on a single supply voltage from 2.7 V to 5.5 V or dual supply voltages from ±1.35 V to ±2.75 V, making it versatile for various system designs.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VCM = 0 V to 5 V | 0.6 | 2.5 | 3.2 | mV |
| Input Bias Current | IB | -40°C < TA < +85°C | 0.3 | 1 | 50 | pA |
| Input Offset Current | IOS | -40°C < TA < +85°C | 0.1 | 0.5 | 50 | pA |
| Input Voltage Range | VCM | 0 | 5 | V | ||
| Output Voltage High | VOH | IOUT = 1 mA | 4.98 | 4.99 | 4.90 | V |
| Output Voltage Low | VOL | IOUT = 1 mA | 8.4 | 20 | 40 | mV |
| Output Current | Isc | Short circuit | ±120 | mA | ||
| Slew Rate | SR | RL = 2 kΩ | 11 | V/μs | ||
| Gain Bandwidth Product | GBP | 24 | MHz | |||
| Supply Voltage Range | VSY | 2.7 | 5.5 | V | ||
| Supply Current per Amplifier | ISY | 1.5 | 2.0 | 2.5 | mA |
Key Features
- Rail-to-Rail Input and Output: The AD8647ARMZ features rail-to-rail input and output stages, allowing for maximum signal range and minimizing distortion.
- Low Offset Voltage: With a maximum offset voltage of 2.5 mV, this amplifier ensures high precision in signal amplification.
- Low Noise: The amplifier has a low noise level of 8 nV/√Hz, making it suitable for noise-sensitive applications.
- High Bandwidth and Slew Rate: It offers a gain bandwidth product of 24 MHz and a slew rate of 11 V/μs, enabling fast and accurate signal processing.
- Low Power Consumption: The supply current per amplifier is typically 2.0 mA, which is efficient for battery-powered and low-power systems.
- Shutdown Option: The AD8647ARMZ includes a shutdown feature, allowing both amplifiers to be shut down with a low current consumption of 10 nA.
- Automotive Qualification: Qualified for automotive applications, ensuring reliability in harsh environments.
Applications
- Automotive Systems: Suitable for various automotive applications due to its qualification and robust performance.
- Industrial Control Systems: Ideal for industrial control systems requiring high precision and reliability.
- Medical Devices: Used in medical devices where low noise and high accuracy are critical.
- Audio and Video Equipment: Applicable in audio and video equipment for signal amplification and processing.
- Battery-Powered Devices: Suitable for battery-powered devices due to its low power consumption.
Q & A
- What is the supply voltage range for the AD8647ARMZ?
The supply voltage range is from 2.7 V to 5.5 V for single supply and ±1.35 V to ±2.75 V for dual supply.
- What is the maximum offset voltage of the AD8647ARMZ?
The maximum offset voltage is 2.5 mV.
- What is the gain bandwidth product of the AD8647ARMZ?
The gain bandwidth product is 24 MHz.
- Does the AD8647ARMZ have a shutdown feature?
Yes, the AD8647ARMZ includes a shutdown feature with a low current consumption of 10 nA when both amplifiers are shut down.
- What is the typical supply current per amplifier for the AD8647ARMZ?
The typical supply current per amplifier is 2.0 mA.
- What is the slew rate of the AD8647ARMZ?
The slew rate is 11 V/μs.
- Is the AD8647ARMZ qualified for automotive applications?
Yes, it is qualified for automotive applications.
- What is the output current capability of the AD8647ARMZ?
The output current capability is ±120 mA.
- What is the noise level of the AD8647ARMZ?
The noise level is 8 nV/√Hz.
- What is the common-mode rejection ratio (CMRR) of the AD8647ARMZ?
The CMRR is typically 84 dB.
