Overview
The AD8651ARMZ-R2 is a precision, low noise, and low distortion operational amplifier (op amp) produced by Analog Devices Inc. This device is part of the AD8651 series, which utilizes DigiTrim technology to achieve high precision and low offset voltage. The AD8651ARMZ-R2 is particularly suited for applications requiring high accuracy and low noise, such as in medical devices, audio equipment, and precision instrumentation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Offset Voltage (VOS) | 100 | 350 | 1.7 | μV |
| Offset Voltage Drift (TCVOS) | 4 | μV/°C | ||
| Input Bias Current (IB) | 1 | 600 | pA | |
| Input Offset Current (IOS) | 1 | 600 | pA | |
| Input Voltage Range (VCM) | -0.1 | +5.1 | V | |
| Common-Mode Rejection Ratio (CMRR) | 70 | 95 | dB | |
| Large Signal Voltage Gain (AVO) | 100 | 115 | dB | |
| Output Voltage High (VOH) | 2.67 | V | ||
| Output Voltage Low (VOL) | 30 | mV | ||
| Short-Circuit Limit (ISC) | 80 | mA | ||
| Supply Current (ISY) | 9 | 14.5 | mA | |
| Slew Rate (SR) | 41 | V/μs | ||
| Gain Bandwidth Product (GBP) | 50 | MHz | ||
| Total Harmonic Distortion + Noise (THD + N) | 0.0006 | % | ||
| Voltage Noise Density (en) | 5 | nV/√Hz |
Key Features
- Precision and Low Offset Voltage: Utilizes DigiTrim technology to achieve high precision and low offset voltage, making it suitable for high-accuracy applications.
- Low Noise: Features low voltage noise density, typically 5 nV/√Hz at 10 kHz, which is crucial for noise-sensitive applications.
- Low Distortion: Offers very low total harmonic distortion plus noise (THD + N), typically 0.0006% at 1 kHz.
- High Common-Mode Rejection Ratio (CMRR): Provides a high CMRR, typically 95 dB, ensuring good common-mode rejection over a wide range of temperatures.
- High Gain Bandwidth Product (GBP): Has a GBP of 50 MHz, making it suitable for high-speed applications.
- Low Input Bias Current: Features very low input bias current, typically 1 pA, which is beneficial for applications requiring minimal input current.
Applications
- Medical Devices: Suitable for medical equipment that requires high precision and low noise, such as ECG and EEG machines.
- Audio Equipment: Ideal for audio applications where low distortion and low noise are critical, such as in audio amplifiers and mixers.
- Precision Instrumentation: Used in various precision measurement instruments, including data acquisition systems and test equipment.
- Industrial Automation: Applied in industrial control systems and automation where high accuracy and reliability are necessary.
Q & A
- What is the typical offset voltage of the AD8651ARMZ-R2?
The typical offset voltage of the AD8651ARMZ-R2 is 350 μV.
- What is the input bias current of the AD8651ARMZ-R2?
The input bias current is typically 1 pA and can go up to 600 pA over the temperature range of -40°C to +125°C.
- What is the common-mode rejection ratio (CMRR) of the AD8651ARMZ-R2?
The CMRR is typically 95 dB over the temperature range of -40°C to +125°C.
- What is the gain bandwidth product (GBP) of the AD8651ARMZ-R2?
The GBP is 50 MHz.
- What is the slew rate of the AD8651ARMZ-R2?
The slew rate is 41 V/μs.
- What is the total harmonic distortion plus noise (THD + N) of the AD8651ARMZ-R2?
The THD + N is typically 0.0006% at 1 kHz.
- What is the voltage noise density of the AD8651ARMZ-R2?
The voltage noise density is typically 5 nV/√Hz at 10 kHz.
- What are the typical supply currents for the AD8651ARMZ-R2?
The typical supply current is between 9 mA and 14.5 mA over the temperature range of -40°C to +125°C.
- What are the common applications of the AD8651ARMZ-R2?
The AD8651ARMZ-R2 is commonly used in medical devices, audio equipment, precision instrumentation, and industrial automation.
- What package type is the AD8651ARMZ-R2 available in?
The AD8651ARMZ-R2 is available in an 8-pin MSOP package.
