Overview
The AD8676ARMZ is a precision, wide bandwidth operational amplifier (op amp) produced by Analog Devices Inc. It is known for its ultraprecision characteristics, including very low voltage noise, rail-to-rail output swing, and low input bias current. This dual op amp is fully specified for operation from ±5 V to ±15 V, making it suitable for a variety of high-precision applications. The AD8676ARMZ combines the precision and low power consumption of industry-standard op amps like the OP07 with the wide bandwidth and low noise of other high-performance op amps.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | −40°C ≤ TA ≤ +125°C | - | 12 μV | - | μV |
| Input Offset Drift (∆VOS/∆T) | −40°C ≤ TA ≤ +125°C | - | 0.2 μV/°C | - | μV/°C |
| Input Bias Current (IB) | - | - | 2 nA | - | nA |
| Voltage Noise Density (en) | f = 1 kHz | - | 2.8 nV/√Hz | - | nV/√Hz |
| Current Noise Density (in) | f = 10 Hz | - | 0.3 pA/√Hz | - | pA/√Hz |
| Power Supply Rejection Ratio (PSRR) | VS = ±5.0 V to ±15.0 V | 106 | - | 120 | dB |
| Supply Current/Amplifier (ISY) | VO = 0 V, −40°C ≤ TA ≤ +125°C | 2.5 | - | 3.8 | mA |
| Slew Rate (SR) | RL = 2 kΩ | - | 2.5 V/μs | - | V/μs |
| Gain Bandwidth Product (GBP) | - | - | 10 MHz | - | MHz |
| Output Current (IO) | - | - | ±20 mA | - | mA |
| Short-Circuit Limit (ISC) | - | - | ±40 mA | - | mA |
Key Features
- Very Low Voltage Noise: 2.8 nV/√Hz at 1 kHz, making it ideal for high-precision applications.
- Rail-to-Rail Output Swing: Ensures maximum output voltage range, enhancing the dynamic range of the system.
- Low Input Bias Current: Maximum of 2 nA, reducing errors in high-impedance source applications.
- Low Offset Voltage and Drift: Typical offset voltage of 12 μV and drift of 0.2 μV/°C, ensuring high precision over temperature variations.
- Wide Bandwidth and High Gain Bandwidth Product: 10 MHz GBP, suitable for high-frequency applications.
- Low Power Consumption: Supply current of 2.5 mA to 3.8 mA per amplifier, making it efficient for battery-powered devices.
- Extended Industrial Temperature Range: Operates from −40°C to +125°C, suitable for harsh environments.
- Compact Packaging: Available in 8-lead MSOP and 8-lead narrow SOIC packages, both lead-free.
Applications
- Precision Instrumentation: Ideal for applications requiring high accuracy and low noise, such as precision measurement instruments.
- PLL and Precision Filter Circuits: The low noise and high precision make it suitable for phase-locked loops and precision filter circuits.
- Position and Pressure Sensors: Used in sensor applications where high precision and low noise are critical.
- Medical Instrumentation: Suitable for medical devices that require high precision and low noise, such as ECG and EEG systems.
- Strain Gage Amplifiers: Ideal for strain gage applications due to its low noise and high precision characteristics.
Q & A
- What is the typical voltage noise density of the AD8676ARMZ?
The typical voltage noise density of the AD8676ARMZ is 2.8 nV/√Hz at 1 kHz.
- What is the input bias current of the AD8676ARMZ?
The input bias current of the AD8676ARMZ is a maximum of 2 nA.
- What is the typical input offset voltage of the AD8676ARMZ?
The typical input offset voltage of the AD8676ARMZ is 12 μV.
- What is the gain bandwidth product (GBP) of the AD8676ARMZ?
The gain bandwidth product (GBP) of the AD8676ARMZ is 10 MHz.
- What is the slew rate of the AD8676ARMZ?
The slew rate of the AD8676ARMZ is 2.5 V/μs with a 2 kΩ load.
- What are the operating temperature ranges for the AD8676ARMZ?
The AD8676ARMZ operates from −40°C to +125°C.
- What are the available package types for the AD8676ARMZ?
The AD8676ARMZ is available in 8-lead MSOP and 8-lead narrow SOIC packages, both of which are lead-free.
- What is the power supply rejection ratio (PSRR) of the AD8676ARMZ?
The power supply rejection ratio (PSRR) of the AD8676ARMZ is 106 dB to 120 dB for supply voltages from ±5 V to ±15 V.
- What is the typical supply current per amplifier for the AD8676ARMZ?
The typical supply current per amplifier for the AD8676ARMZ is 2.5 mA to 3.8 mA.
- What are some common applications of the AD8676ARMZ?
The AD8676ARMZ is commonly used in precision instrumentation, PLL and precision filter circuits, position and pressure sensors, medical instrumentation, and strain gage amplifiers.
