Overview
The AD8672ARZ-REEL7 is a precision operational amplifier (op-amp) IC manufactured by Analog Devices Inc. This dual op-amp is designed for applications that require high precision, low noise, and high-speed performance. It is optimized for low-voltage operations and provides excellent performance for both analog and digital signal switching applications. The AD8672ARZ-REEL7 is particularly suited for tasks that demand low input offset voltage, low input bias current, and low noise characteristics, making it ideal for precision signal conditioning and amplification.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Offset Voltage (VOS) | 20 µV to 75 µV | −40°C to +125°C |
| Input Bias Current (IB) | −12 nA to +12 nA | −40°C to +125°C |
| Input Offset Current (IOS) | −12 nA to +12 nA | −40°C to +125°C |
| Input Voltage Range | −2.5 V to +2.5 V | |
| Common-Mode Rejection Ratio (CMRR) | 110 dB to 130 dB | VS = ±4 V to ±18 V |
| Supply Current per Amplifier (ISY) | 3 mA to 3.5 mA | VO = 0 V, −40°C to +125°C |
| Slew Rate (SR) | 4 V/µs | RL = 2 kΩ |
| Settling Time (tS) | 1.4 µs to 5.1 µs | To 0.1% and 0.01% (4 V step, G = 1) |
| Gain Bandwidth Product (GBP) | 10 MHz | |
| Voltage Noise Density (en) | 2.8 nV/√Hz to 3.8 nV/√Hz | f = 1 kHz |
| Peak-to-Peak Noise (en p-p) | 77 nV p-p to 100 nV p-p | 0.1 Hz to 10 Hz |
| Output Voltage High (VOH) | +13.2 V to +13.8 V | RL = 2 kΩ, −40°C to +125°C |
| Output Voltage Low (VOL) | −13.8 V to −13.2 V | RL = 2 kΩ, −40°C to +125°C |
| Output Current (IOUT) | ±20 mA | |
| Short Circuit Current (ISC) | ±30 mA | |
| Package/Case | 8-SOIC | |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Very Low Noise: 2.8 nV/√Hz, 77 nV p-p
- Wide Bandwidth: 10 MHz
- Low Input Bias Current: 12 nA max
- Low Offset Voltage: 75 µV max
- High Open Loop Gain: 120 dB min
- Low Supply Current: 3 mA typ per amplifier
- Dual Supply Operation: ±5V to ±15V
- Unity Gain Stable: No phase reversal
- Rail-to-Rail Input and Output Capability: Handles signals extending to the power supply rails
Applications
- Instrumentation Amplifiers: Suitable for precision instrumentation amplifiers in measurement systems to amplify small signals from sensors and transducers with high accuracy.
- Data Acquisition Systems: Used as an amplifier for analog-to-digital converters (ADCs) to ensure precise amplification of small analog signals before conversion.
- Active Filters: Utilized in active filter circuits such as low-pass, high-pass, and band-pass filters due to its high bandwidth and low noise characteristics.
- Test and Measurement Equipment: Suitable for various test and measurement equipment like spectrum analyzers, oscilloscopes, and precision voltmeters to maintain signal integrity and accuracy.
- Signal Conditioning and Audio Applications: Used for signal conditioning in audio applications such as microphone preamplifiers, audio mixers, and professional audio equipment due to its low noise performance and wide bandwidth.
- Video Signal Processing: Ideal for video signal processing applications where high-speed and low-noise amplification are required.
- Robotics Technology: Used in robotics technology to amplify signals and improve the overall performance of robotic systems.
Q & A
- What is the typical input offset voltage of the AD8672ARZ-REEL7?
The typical input offset voltage of the AD8672ARZ-REEL7 is 20 µV to 75 µV over the temperature range of −40°C to +125°C.
- What is the input bias current of the AD8672ARZ-REEL7?
The input bias current of the AD8672ARZ-REEL7 is −12 nA to +12 nA over the temperature range of −40°C to +125°C.
- What is the gain bandwidth product (GBP) of the AD8672ARZ-REEL7?
The gain bandwidth product (GBP) of the AD8672ARZ-REEL7 is 10 MHz.
- What is the slew rate of the AD8672ARZ-REEL7?
The slew rate of the AD8672ARZ-REEL7 is 4 V/µs with a load resistance of 2 kΩ.
- What are the typical supply current requirements for the AD8672ARZ-REEL7?
The typical supply current per amplifier for the AD8672ARZ-REEL7 is 3 mA to 3.5 mA over the temperature range of −40°C to +125°C.
- What is the operating temperature range of the AD8672ARZ-REEL7?
The operating temperature range of the AD8672ARZ-REEL7 is −40°C to +125°C.
- What package type is the AD8672ARZ-REEL7 available in?
The AD8672ARZ-REEL7 is available in an 8-lead SOIC package.
- What are some common applications of the AD8672ARZ-REEL7?
The AD8672ARZ-REEL7 is commonly used in instrumentation amplifiers, data acquisition systems, active filters, test and measurement equipment, and audio applications due to its high precision and low noise performance.
- Does the AD8672ARZ-REEL7 support rail-to-rail input and output?
Yes, the AD8672ARZ-REEL7 supports rail-to-rail input and output capability, allowing it to handle signals that extend to the power supply rails.
- What is the voltage noise density of the AD8672ARZ-REEL7?
The voltage noise density of the AD8672ARZ-REEL7 is 2.8 nV/√Hz to 3.8 nV/√Hz at a frequency of 1 kHz.
