Overview
The AD8602AR from Analog Devices Inc. is a precision CMOS dual operational amplifier designed for single-supply operation. It features rail-to-rail input and output capabilities, making it versatile for a wide range of applications. The AD8602AR operates from a single supply voltage of 2.7 V to 5.5 V and is known for its low offset voltage, low supply current, and wide bandwidth. This amplifier is part of the AD8601/AD8602/AD8604 family, which is renowned for its superior performance achieved through a patented trimming technique without laser trimming.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage (VOS) | 0 V ≤ VCM ≤ 5 V | 80 | 500 | 1300 | µV |
| Input Bias Current (IB) | - | 0.2 | 60 | 200 | pA |
| Input Offset Current (IOS) | - | 0.1 | 30 | 100 | pA |
| Input Voltage Range | - | 0 | - | 5 | V |
| Common-Mode Rejection Ratio (CMRR) | VCM = 0 V to 5 V | 74 | 89 | 56 | dB |
| Supply Current/Amplifier (ISY) | VO = 0 V | 750 | 1200 | 1500 | µA |
| Slew Rate (SR) | RL = 2 kΩ | 6 | - | - | V/µs |
| Bandwidth (BW) | - | - | 8.2 | - | MHz |
| Phase Margin (Φo) | - | 50 | - | - | Degrees |
| Voltage Noise Density (en) | f = 1 kHz | 33 | - | - | nV/√Hz |
| Current Noise Density (in) | f = 1 kHz | 0.05 | - | - | pA/√Hz |
Key Features
- Rail-to-Rail Input and Output: The AD8602AR can handle input and output signals that range from the negative to the positive supply rail.
- Low Offset Voltage: Maximum offset voltage of 500 µV, ensuring high precision in applications.
- Single-Supply Operation: Operates from a single supply voltage of 2.7 V to 5.5 V.
- Low Supply Current: Each amplifier consumes only 750 µA of supply current.
- Wide Bandwidth: Features a bandwidth of 8.2 MHz and a slew rate of 5 V/µs.
- Low Distortion and No Phase Reversal: Ensures high signal integrity and stability.
- Unity-Gain Stable: Stable in unity-gain configurations.
- Qualified for Automotive Applications: Meets the stringent requirements for automotive use.
Applications
- Current Sensing: Ideal for current sensing applications due to its high precision and low offset voltage.
- Barcode Scanners: Used in barcode scanners for signal amplification and conditioning.
- PA Controls: Suitable for power amplifier controls in various electronic systems.
- Battery-Powered Instrumentation: Optimized for battery-powered devices due to its low power consumption.
- Multipole Filters: Used in filter circuits to enhance signal quality.
- Sensors and ASIC Input/Output Amplifiers: Commonly used in sensor circuits and as input/output amplifiers for Application-Specific Integrated Circuits (ASICs).
- Audio Applications: Suitable for audio circuits requiring low noise and high signal fidelity.
Q & A
- What is the maximum offset voltage of the AD8602AR?
The maximum offset voltage of the AD8602AR is 1300 µV over the temperature range of -40°C to +125°C.
- What is the operating voltage range of the AD8602AR?
The AD8602AR operates from a single supply voltage of 2.7 V to 5.5 V.
- What is the bandwidth of the AD8602AR?
The bandwidth of the AD8602AR is 8.2 MHz.
- Is the AD8602AR suitable for automotive applications?
Yes, the AD8602AR is qualified for automotive applications.
- What is the typical supply current per amplifier for the AD8602AR?
The typical supply current per amplifier for the AD8602AR is 750 µA.
- Does the AD8602AR have rail-to-rail input and output capabilities?
Yes, the AD8602AR features rail-to-rail input and output capabilities.
- What is the slew rate of the AD8602AR?
The slew rate of the AD8602AR is 5 V/µs.
- Is the AD8602AR unity-gain stable?
Yes, the AD8602AR is unity-gain stable.
- What are some common applications of the AD8602AR?
The AD8602AR is commonly used in current sensing, barcode scanners, PA controls, battery-powered instrumentation, multipole filters, sensors, ASIC input/output amplifiers, and audio applications.
- What package types are available for the AD8602AR?
The AD8602AR is available in SOIC-8 packages among others.
