Overview
The AD8675ARZ-REEL, produced by Analog Devices Inc., is a precision operational amplifier known for its ultralow offset, drift, and voltage noise. This amplifier features a rail-to-rail output, wide bandwidth, and low power consumption, making it ideal for applications where high precision and low error tolerance are critical. It combines the benefits of low noise and low input bias current, similar to the industry-standard OP07, but with enhanced performance characteristics such as lower voltage noise and higher bandwidth.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | 10 | 75 | 240 | µV |
| Offset Voltage Drift | ΔVOS/ΔT | 0.2 | 0.6 | - | µV/°C |
| Input Bias Current | IB | -2 | 0.5 | 2 | nA |
| Input Offset Current | IOS | -1 | 0.1 | 1 | nA |
| Input Voltage Range | IVR | -3.0 | - | 3.0 | V |
| Common-Mode Rejection Ratio | CMRR | 105 | 130 | - | dB |
| Supply Current/Amplifier | ISY | 2.3 | 2.7 | 3.4 | mA |
| Slew Rate | SR | - | 2.5 | - | V/µs |
| Gain Bandwidth Product | GBP | - | 10 | - | MHz |
| Voltage Noise (0.1 Hz to 10 Hz) | en p-p | - | 0.1 | - | µV p-p |
| Voltage Noise Density at 1 kHz | en | - | 2.8 | - | nV/√Hz |
| Current Noise Density at 10 Hz | in | - | 0.3 | - | pA/√Hz |
| Output Current per Channel | - | - | - | 35 | mA |
| Power Supply Rejection Ratio | PSRR | 120 | 140 | - | dB |
| Operating Temperature | - | -40°C to 125°C | - | - | °C |
| Package/Case | - | 8-SOIC (0.154, 3.90mm Width) | - | - | - |
Key Features
- Ultralow Offset and Drift: The AD8675ARZ features a typical offset voltage of 10 µV and an offset drift of 0.2 µV/°C, making it highly precise for critical applications.
- Low Input Bias Current: With a typical input bias current of 0.5 nA, this amplifier minimizes errors due to input current.
- Rail-to-Rail Output: The amplifier provides a rail-to-rail output, ensuring maximum signal range and flexibility.
- Low Noise Performance: It has a voltage noise of 0.1 µV p-p (0.1 Hz to 10 Hz) and a voltage noise density of 2.8 nV/√Hz at 1 kHz, making it suitable for low-noise applications.
- High Bandwidth and Slew Rate: The AD8675ARZ offers a gain bandwidth product of 10 MHz and a slew rate of 2.5 V/µs, ensuring high-speed performance.
- External Nulling Capability: The proprietary nulling capability allows for the compensation of device and system offset errors up to 3.5 mV without affecting the amplifier's performance.
Applications
- Precision Instrumentation: The AD8675ARZ is ideal for precision instrumentation due to its low offset, drift, and noise characteristics.
- PLL Circuits: Its high precision and low noise make it suitable for phase-locked loop (PLL) circuits.
- Medical Equipment: The amplifier's high accuracy and stability are beneficial in medical equipment where precise signal processing is required.
- Aerospace and Defense: Its robust performance over a wide temperature range makes it suitable for aerospace and defense applications.
- Industrial Automation: The AD8675ARZ can be used in industrial automation for precise signal conditioning and processing.
Q & A
- What is the typical offset voltage of the AD8675ARZ?
The typical offset voltage of the AD8675ARZ is 10 µV.
- What is the input bias current of the AD8675ARZ?
The typical input bias current is 0.5 nA).
- Does the AD8675ARZ have rail-to-rail output?
Yes, the AD8675ARZ features a rail-to-rail output).
- What is the gain bandwidth product of the AD8675ARZ?
The gain bandwidth product is 10 MHz).
- What is the operating temperature range of the AD8675ARZ?
The operating temperature range is -40°C to 125°C).
- What package options are available for the AD8675ARZ?
The AD8675ARZ is available in an 8-SOIC package).
- Does the AD8675ARZ support external nulling for offset errors?
Yes, it supports external nulling for offset errors up to 3.5 mV).
- What is the power supply rejection ratio (PSRR) of the AD8675ARZ?
The PSRR is typically 140 dB).
- What are some common applications of the AD8675ARZ?
Common applications include precision instrumentation, PLL circuits, medical equipment, aerospace and defense, and industrial automation).
- Is the AD8675ARZ RoHS compliant?
Yes, the AD8675ARZ is RoHS compliant).
