Overview
The AD8627AR-REEL7 is a precision, single JFET input operational amplifier produced by Analog Devices Inc. This device is part of the AD862x series, known for its high accuracy and low noise characteristics. The AD8627 is fully specified over the industrial temperature range of −40°C to +85°C, making it suitable for a wide range of applications that require precision and reliability.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C < TA < +85°C | 0.35 | 0.75 | 1.35 | mV |
| Input Bias Current | IB | −40°C < TA < +85°C | 0.25 | 1 | 60 | pA |
| Input Offset Current | IOS | −40°C < TA < +85°C | 0.5 | - | 25 | pA |
| Input Voltage Range | - | - | 0 | - | 3 | V |
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 2.5 V | 66 | 87 | - | dB |
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, VO = 0.5 V to 4.5 V | 100 | 230 | - | V/mV |
| Offset Voltage Drift | ∆VOS/∆T | −40°C < TA < +85°C | - | - | 2.5 | µV/°C |
| Output Voltage High | VOH | IL = 2 mA, −40°C < TA < +85°C | - | - | 4.92 | V |
| Output Voltage Low | VOL | IL = 2 mA, −40°C < TA < +85°C | - | - | 0.08 | V |
| Output Current | IOUT | - | - | - | ±15 | mA |
| Supply Current/Amplifier | ISY | - | 710 | 850 | 900 | µA |
| Slew Rate | SR | - | - | - | 5 | V/µs |
| Gain Bandwidth Product | GBP | - | - | - | 5 | MHz |
| Phase Margin | ØM | - | - | - | 60 | Degrees |
| Voltage Noise Density | en | f = 1 kHz | - | - | 16 | nV/√Hz |
Key Features
- High Precision: Low offset voltage (0.35 mV to 1.35 mV) and low offset voltage drift (2.5 µV/°C) ensure high accuracy in various applications.
- Low Noise: Low voltage noise density (16 nV/√Hz at 1 kHz) and low current noise density (0.5 fA/√Hz at 1 kHz) make it suitable for noise-sensitive applications.
- Wide Operating Range: Fully specified over the industrial temperature range of −40°C to +85°C.
- High CMRR and PSRR: High common-mode rejection ratio (66 dB to 87 dB) and power supply rejection ratio (80 dB to 104 dB) ensure robust performance against common-mode and power supply noise.
- High Gain Bandwidth Product: A gain bandwidth product of 5 MHz and a slew rate of 5 V/µs provide good dynamic performance.
Applications
- Precision Filters: The high bandwidth and low offset make it ideal for precision filters and other high-accuracy signal processing applications.
- Medical Equipment: Suitable for medical devices that require low noise and high precision, such as ECG and EEG systems.
- Industrial Control Systems: Used in industrial control systems where high accuracy and reliability are crucial.
- Aerospace and Defense: Applicable in aerospace and defense systems due to its robust performance over a wide temperature range.
- Test and Measurement Equipment: Ideal for test and measurement equipment that require high precision and low noise.
Q & A
- What is the typical offset voltage of the AD8627AR-REEL7?
The typical offset voltage is 0.75 mV.
- What is the input bias current range of the AD8627AR-REEL7?
The input bias current ranges from 0.25 pA to 60 pA over the temperature range of −40°C to +85°C.
- What is the common-mode rejection ratio (CMRR) of the AD8627AR-REEL7?
The CMRR is between 66 dB and 87 dB.
- What is the gain bandwidth product (GBP) of the AD8627AR-REEL7?
The GBP is 5 MHz.
- What is the slew rate of the AD8627AR-REEL7?
The slew rate is 5 V/µs.
- What is the output current capability of the AD8627AR-REEL7?
The output current is ±15 mA.
- What is the supply current per amplifier for the AD8627AR-REEL7?
The supply current per amplifier is typically 850 µA.
- What is the voltage noise density of the AD8627AR-REEL7 at 1 kHz?
The voltage noise density is 16 nV/√Hz at 1 kHz.
- What is the operating temperature range of the AD8627AR-REEL7?
The operating temperature range is −40°C to +85°C.
- What are some typical applications of the AD8627AR-REEL7?
Typical applications include precision filters, medical equipment, industrial control systems, aerospace and defense systems, and test and measurement equipment.
