Overview
The AD8662ARMZ-R2, produced by Analog Devices Inc., is a dual low-noise, precision CMOS operational amplifier. This device is part of the AD8661/AD8662/AD8664 series, known for its rail-to-rail output and single-supply operation. It utilizes Analog Devices' patented DigiTrim® trimming technique to achieve low offset voltage, making it suitable for a wide range of high-performance applications. The amplifier features extended operating ranges with supply voltages up to 16 V, low input bias current, wide signal bandwidth, and low input voltage and current noise.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VCM = VS/2, −40°C < TA < +85°C | 50 | 160 | 1000 | µV |
| Input Bias Current | IB | −40°C < TA < +85°C | 0.3 | 1 | 50 | pA |
| Input Offset Current | IOS | −40°C < TA < +85°C | 0.2 | 0.5 | 20 | pA |
| Input Voltage Range | VCM = −0.1 V to +14.0 V | −0.1 | +14.0 | V | ||
| Common-Mode Rejection Ratio | CMRR | VCM = −0.1 V to +14.0 V, −40°C < TA < +125°C | 90 | 110 | dB | |
| Large Signal Voltage Gain | AVO | RL = 2 kΩ, VO = 0.5 V to 15.5 V | 200 | 360 | V/mV | |
| Output Voltage High | VOH | IL = 1 mA, −40°C < TA < +125°C | 15.93 | 15.97 | V | |
| Output Voltage Low | VOL | IL = 1 mA, −40°C < TA < +125°C | 24 | 50 | mV | |
| Supply Current per Amplifier | ISY | VO = VS/2, −40°C < TA < +125°C | 1.25 | 2.1 | mA |
Key Features
- Rail-to-Rail Output: The AD8662ARMZ-R2 features rail-to-rail output, allowing it to drive loads connected to any point within the supply voltage range.
- Low Offset Voltage: Utilizes Analog Devices' patented DigiTrim® trimming technique to achieve low offset voltage, typically 160 µV.
- Low Input Bias Current: Very low input bias current, typically 1 pA, making it suitable for high impedance sensor applications.
- Wide Signal Bandwidth: Offers a wide signal bandwidth, enhancing its performance in various high-frequency applications.
- Low Noise: Features low input voltage and current noise, which is crucial for precision and low-noise applications.
- High Common-Mode Rejection Ratio (CMRR): CMRR of 90 dB to 110 dB, ensuring good rejection of common-mode signals.
- Extended Operating Range: Operates with supply voltages up to 16 V, making it versatile for different system requirements.
Applications
- High Impedance Sensors: Ideal for systems using high impedance sensors such as photodiodes due to its low input bias current and low noise characteristics.
- Analog-to-Digital and Digital-to-Analog Converters (ADCs/DACs): Suitable for high-performance ADCs and DACs due to its wide operating voltage range and low noise.
- Audio Applications: Used in audio applications where high input impedance, low voltage, and low current noise are essential.
- Medical Monitoring Equipment: Employed in medical monitoring equipment that requires high precision and low noise amplification.
Q & A
- What is the typical offset voltage of the AD8662ARMZ-R2?
The typical offset voltage is 160 µV.
- What is the maximum supply voltage for the AD8662ARMZ-R2?
The maximum supply voltage is 16 V.
- What is the input bias current of the AD8662ARMZ-R2?
The input bias current is typically 1 pA.
- What is the common-mode rejection ratio (CMRR) of the AD8662ARMZ-R2?
The CMRR is 90 dB to 110 dB.
- What are the typical applications of the AD8662ARMZ-R2?
It is used in high impedance sensor systems, ADCs/DACs, audio applications, and medical monitoring equipment.
- What is the package type for the AD8662ARMZ-R2?
The AD8662ARMZ-R2 is available in an 8-pin MSOP package.
- What is the operating temperature range for the AD8662ARMZ-R2?
The operating temperature range is −40°C to +125°C.
- Does the AD8662ARMZ-R2 support rail-to-rail output?
Yes, it supports rail-to-rail output.
- What is the slew rate of the AD8662ARMZ-R2?
The slew rate is not specified in the provided sources but can be found in the detailed datasheet.
- Is the AD8662ARMZ-R2 RoHS compliant?
Yes, the AD8662ARMZ-R2 is RoHS compliant.
