Overview
The AD8627ARZ is a precision, low-power, single-supply JFET input operational amplifier produced by Analog Devices Inc. This amplifier is known for its low power consumption and rail-to-rail output, making it suitable for a variety of applications where precision and low noise are critical. The AD8627ARZ operates over a wide supply voltage range of 5V to 26V and is fully specified over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C < TA < +85°C | 0.05 | 0.5 | 1.2 | 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 | |
| Output Voltage High | VOH | IL = 2 mA, −40°C < TA < +85°C | 4.92 | 4.90 | V | |
| Output Voltage Low | VOL | IL = 2 mA, −40°C < TA < +85°C | 0.075 | 0.08 | V | |
| Output Current | IOUT | ±10 | mA | |||
| Supply Current/Amplifier | ISY | −40°C < TA < +85°C | 630 | 785 | 800 | 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 | 17.5 | nV/√Hz | ||
| Current Noise Density | in | f = 1 kHz | 0.4 | fA/√Hz |
Key Features
- Rail-to-Rail Output: The AD8627ARZ can swing nearly rail-to-rail at the output, making it ideal for applications requiring full output range.
- Low Power Consumption: The amplifier has a low supply current of 630 µA to 785 µA per amplifier, making it suitable for power-sensitive designs.
- High Precision: Features low offset voltage (0.05 mV to 1.2 mV) and low offset voltage drift (2.5 µV/°C), ensuring high precision in various applications.
- Wide Supply Voltage Range: Operates from 5V to 26V, providing flexibility in system design.
- High Bandwidth and Slew Rate: Offers a 5 MHz gain bandwidth product and a 5 V/µs slew rate, suitable for high-speed applications.
- Low Noise: Exhibits low voltage noise density (17.5 nV/√Hz at 1 kHz) and low current noise density (0.4 fA/√Hz at 1 kHz), making it ideal for noise-sensitive applications.
- High Common-Mode Rejection Ratio (CMRR): Provides a CMRR of 66 dB to 87 dB, ensuring good rejection of common-mode signals.
Applications
- Precision Filters: The AD8627ARZ is ideal for precision filters due to its low offset voltage and high bandwidth.
- Buffering CMOS DACs and ASICs: Its rail-to-rail input and output capabilities make it suitable for buffering wide output swing devices in single-supply systems.
- Industrial and Automotive Systems: Fully specified over the industrial temperature range and compliant with automotive standards, making it suitable for various industrial and automotive applications.
- Medical Devices: The low noise and high precision of the AD8627ARZ make it a good choice for medical devices requiring accurate signal processing.
- Audio and Video Equipment: Its low noise and high bandwidth characteristics are beneficial in audio and video applications.
Q & A
- What is the typical supply current of the AD8627ARZ?
The typical supply current of the AD8627ARZ is 785 µA per amplifier.
- What is the gain bandwidth product of the AD8627ARZ?
The gain bandwidth product of the AD8627ARZ is 5 MHz.
- What is the slew rate of the AD8627ARZ?
The slew rate of the AD8627ARZ is 5 V/µs.
- What is the common-mode rejection ratio (CMRR) of the AD8627ARZ?
The CMRR of the AD8627ARZ is 66 dB to 87 dB.
- What is the operating temperature range of the AD8627ARZ?
The AD8627ARZ operates over the industrial temperature range of −40°C to +85°C.
- What are the typical output voltage high and low values for the AD8627ARZ?
The typical output voltage high is 4.92 V, and the typical output voltage low is 0.075 V at IL = 2 mA.
- What is the input bias current of the AD8627ARZ?
The input bias current of the AD8627ARZ is typically 1 pA and can range up to 60 pA over the temperature range.
- What is the voltage noise density of the AD8627ARZ?
The voltage noise density of the AD8627ARZ is 17.5 nV/√Hz at 1 kHz.
- What are the package options available for the AD8627ARZ?
The AD8627ARZ is available in 5-lead SC70 and 8-lead SOIC surface-mount packages.
- Is the AD8627ARZ RoHS compliant?
Yes, the AD8627ARZ is RoHS compliant.
