Overview
The AD8676BRZ-REEL7 is a precision, dual operational amplifier produced by Analog Devices Inc. This device is part of a series of low-noise op amps, known for their ultralow offset, drift, and voltage noise. The AD8676 is designed to offer high precision and reliability, making it suitable for a variety of applications that require accurate signal amplification.
The AD8676 operates over a wide supply voltage range from ±5 V to ±15 V and features rail-to-rail output swings. It is available in compact packages, including the 8-lead MSOP and the 8-lead narrow SOIC, both of which are lead-free and suitable for space-constrained applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage (VOS) | VOS | B Grade (SOIC) | 12 | 50 | 100 | μV |
| Offset Voltage (VOS) | VOS | B Grade (MSOP) | 60 | 100 | μV | |
| Offset Voltage (VOS) over Temperature | VOS | −40°C ≤ T_A ≤ +125°C | 15 | 160 | μV | |
| Input Bias Current (IB) | IB | −2 | +2 | nA | ||
| Output Voltage Low (VOL) | VOL | R_L = 10 kΩ to ground | −4.98 | −4.90 | −4.85 | V |
| Short-Circuit Limit (ISC) | ISC | +40 | mA | |||
| Power Supply Rejection Ratio (PSRR) | PSRR | V_S = ±5.0 V to ±15.0 V | 106 | 120 | dB | |
| Supply Current per Amplifier (ISY) | ISY | V_O = 0 V | 2.5 | 3.2 | 3.8 | mA |
| Slew Rate (SR) | SR | R_L = 2 kΩ | 2.5 | V/μs | ||
| Gain Bandwidth Product (GBP) | GBP | 10 | MHz | |||
| Voltage Noise Density (en) | en | f = 1 kHz | 2.8 | nV/√Hz | ||
| Current Noise Density (in) | in | f = 10 Hz | 0.3 | pA/√Hz |
Key Features
- Low Noise: The AD8676 features very low voltage noise density of 2.8 nV/√Hz at 1 kHz and low current noise density of 0.3 pA/√Hz at 10 Hz, making it ideal for high-precision applications.
- Rail-to-Rail Output: The amplifier provides rail-to-rail output swings, ensuring maximum signal range and flexibility.
- Low Input Bias Current: With input bias currents as low as ±2 nA, the AD8676 minimizes errors in precision applications.
- High Gain Bandwidth Product: A gain bandwidth product of 10 MHz allows for high-frequency signal processing.
- Compact Packaging: Available in 8-lead MSOP and 8-lead narrow SOIC packages, both of which are lead-free and suitable for space-constrained applications.
- Wide Operating Temperature Range: Specified for the extended industrial temperature range of −40°C to +125°C.
Applications
- Precision Instrumentation: The AD8676 is well-suited for precision instrumentation due to its low noise and high accuracy.
- Medical Equipment: Its low noise and high precision make it ideal for medical equipment where signal integrity is critical.
- Aerospace and Defense: The device's ability to operate over a wide temperature range and its high reliability make it suitable for aerospace and defense applications.
- Industrial Automation: The AD8676 can be used in industrial automation for precise signal amplification and processing.
Q & A
- What is the typical voltage noise density of the AD8676?
The typical voltage noise density of the AD8676 is 2.8 nV/√Hz at 1 kHz.
- What are the available package options for the AD8676?
The AD8676 is available in 8-lead MSOP and 8-lead narrow SOIC packages, both of which are lead-free.
- What is the operating temperature range of the AD8676?
The AD8676 is specified for the extended industrial temperature range of −40°C to +125°C.
- What is the maximum output current per channel of the AD8676?
The maximum output current per channel of the AD8676 is ±20 mA.
- What is the gain bandwidth product of the AD8676?
The gain bandwidth product of the AD8676 is 10 MHz.
- What are some typical applications of the AD8676?
The AD8676 is typically used in precision instrumentation, medical equipment, aerospace and defense, and industrial automation.
- What is the power supply rejection ratio (PSRR) of the AD8676?
The power supply rejection ratio (PSRR) of the AD8676 is 106 dB to 120 dB over the supply voltage range of ±5 V to ±15 V.
- What is the slew rate of the AD8676?
The slew rate of the AD8676 is 2.5 V/μs with a load resistance of 2 kΩ.
- Is the AD8676 suitable for high-frequency applications?
Yes, the AD8676 is suitable for high-frequency applications due to its high gain bandwidth product and low noise characteristics.
- What is the input bias current of the AD8676?
The input bias current of the AD8676 is typically ±2 nA.
