Overview
The AD8674ARZ-REEL, produced by Analog Devices Inc., is a high-precision operational amplifier known for its ultra-low noise, low offset voltage, and low input bias current. This quad op-amp is part of the AD8671/AD8672/AD8674 family, which is renowned for its high precision, speed, and stability. The AD8674 is available in 14-lead SOIC and 14-lead TSSOP packages, making it suitable for a variety of applications where precision and low noise are critical.
Key Specifications
| Parameter | Typical Value | Maximum Value |
|---|---|---|
| Offset Voltage (VOS) | 20 µV to 75 µV | 30 µV to 125 µV (-40°C to +125°C) |
| Offset Voltage Drift (∆VOS/∆T) | 0.3 µV/°C to 0.8 µV/°C | |
| Input Bias Current (IB) | -12 nA to +12 nA | -20 nA to +20 nA (-40°C to +125°C) |
| Input Offset Current (IOS) | -12 nA to +12 nA | -20 nA to +20 nA (-40°C to +125°C) |
| Input Voltage Range | -2.5 V to +2.5 V | |
| Bandwidth | 10 MHz | |
| Slew Rate (SR) | 4 V/µs | |
| Settling Time (tS) to 0.1% | 1.4 µs | |
| Settling Time (tS) to 0.01% | 5.1 µs | |
| Gain Bandwidth Product (GBP) | 10 MHz | |
| Voltage Noise Density (en) at 1 kHz | 2.8 nV/√Hz to 3.8 nV/√Hz | |
| Current Noise Density (in) at 1 kHz | 0.3 pA/√Hz | |
| Supply Current per Amplifier (ISY) | 3 mA to 3.5 mA | 4.2 mA (-40°C to +125°C) |
| Power Supply Rejection Ratio (PSRR) | 106 dB to 115 dB | |
| Output Voltage High (VOH) at RL = 2 kΩ | +13.2 V to +13.8 V | |
| Output Voltage Low (VOL) at RL = 2 kΩ | -13.8 V to -13.2 V | |
| Output Current (IOUT) | ±20 mA | |
| Short Circuit Current (ISC) | ±30 mA |
Key Features
- Ultra-low noise: 2.8 nV/√Hz at 1 kHz
- Low offset voltage: 20 µV to 75 µV
- Low input bias current: -12 nA to +12 nA
- High bandwidth: 10 MHz
- Low power consumption: 3 mA to 3.5 mA per amplifier
- Dual-supply operation: ±5 V to ±15 V
- Unity-gain stable
- No phase reversal
- Stable with capacitive loads over 1000 pF
- Available in 14-lead SOIC and 14-lead TSSOP packages
Applications
- High-quality PLL filters
- Precision filters for GPS and other applications
- Medical and analytical instrumentation
- Precision power supply controls
- Automated Test Equipment (ATE)
- Data acquisition systems
- Precision controls and sensors
- Professional quality audio systems
Q & A
- What is the typical voltage noise density of the AD8674?
The typical voltage noise density of the AD8674 is 2.8 nV/√Hz at 1 kHz.
- What is the maximum input bias current of the AD8674?
The maximum input bias current of the AD8674 is 12 nA at 25°C.
- What is the bandwidth of the AD8674?
The bandwidth of the AD8674 is 10 MHz.
- What are the typical supply currents per amplifier for the AD8674?
The typical supply currents per amplifier for the AD8674 are 3 mA to 3.5 mA.
- What are the output voltage ranges for the AD8674?
The output voltage ranges for the AD8674 are +13.2 V to +13.8 V and -13.8 V to -13.2 V at RL = 2 kΩ.
- What is the short-circuit current limit of the AD8674?
The short-circuit current limit of the AD8674 is ±30 mA.
- In what temperature range is the AD8674 specified?
The AD8674 is specified over the industrial temperature range of -40°C to +85°C.
- What are the common applications of the AD8674?
The AD8674 is commonly used in high-quality PLL filters, precision filters, medical and analytical instrumentation, precision power supply controls, ATE, data acquisition, and professional quality audio systems.
- What are the package options for the AD8674?
The AD8674 is available in 14-lead SOIC and 14-lead TSSOP packages.
- Is the AD8674 unity-gain stable?
Yes, the AD8674 is unity-gain stable.
