Overview
The AD8674ARZ is a high-precision operational amplifier produced by Analog Devices Inc. It is part of the AD8671/AD8672/AD8674 series, known for their ultra-low noise, low offset voltage, and high precision. These amplifiers are designed to offer excellent performance in noise reduction and signal amplification, making them suitable for a wide range of applications.
The AD8674ARZ is a quad-channel amplifier, available in 14-lead SOIC and 14-lead TSSOP packages. It operates over a dual-supply range of ±5V to ±15V and is specified over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 20 | - | 75 | µV |
| Input Offset Voltage Drift | ΔVOS/ΔT | 0.3 | - | 0.8 | µV/°C |
| Input Bias Current | IB | -40 | - | 40 | nA |
| Input Offset Current | IOS | -40 | - | 40 | nA |
| Input Voltage Range | IVR | -2.5 | - | 2.5 | V |
| Common-Mode Rejection Ratio | CMRR | 106 | - | 115 | dB |
| Supply Current per Amplifier | ISY | 3 | - | 3.5 | mA |
| Slew Rate | SR | - | 4 | - | V/µs |
| Gain Bandwidth Product | GBP | - | 10 | - | MHz |
| Voltage Noise Density | en | - | 2.8 | 3.8 | nV/√Hz |
| Output Voltage High | VOH | - | - | 13.2 | V |
| Output Voltage Low | VOL | -13.8 | - | -13.2 | V |
| Output Current | IOUT | - | - | 20 | mA |
Key Features
- Ultra-low noise: 2.8 nV/√Hz voltage noise density and 77 nV p-p peak-to-peak noise from 0.1 Hz to 10 Hz.
- Low input bias current: Maximum of 40 nA.
- Low offset voltage: Maximum of 75 µV and low drift of 0.3 to 0.8 µV/°C.
- High gain bandwidth product: 10 MHz.
- High slew rate: 4 V/µs.
- Low power consumption: Typical supply current of 3 mA per amplifier.
- Stable with capacitive loads: Up to 1000 pF.
- Dual-supply operation: ±5 V to ±15 V).
Applications
- High-quality PLL filters and precision filters.
- Medical and analytical instrumentation.
- Precision power supply controls and ATE (Automated Test Equipment).
- Data acquisition and precision controls.
- Professional quality audio systems.
- Sensors and controls).
Q & A
- What is the input offset voltage of the AD8674ARZ?
The input offset voltage of the AD8674ARZ is a maximum of 75 µV).
- What is the voltage noise density of the AD8674ARZ?
The voltage noise density of the AD8674ARZ is 2.8 nV/√Hz).
- What is the slew rate of the AD8674ARZ?
The slew rate of the AD8674ARZ is 4 V/µs).
- What is the gain bandwidth product of the AD8674ARZ?
The gain bandwidth product of the AD8674ARZ is 10 MHz).
- What is the typical supply current per amplifier for the AD8674ARZ?
The typical supply current per amplifier for the AD8674ARZ is 3 mA).
- What are the package options for the AD8674ARZ?
The AD8674ARZ is available in 14-lead SOIC and 14-lead TSSOP packages).
- What is the operating temperature range for the AD8674ARZ?
The operating temperature range for the AD8674ARZ is −40°C to +85°C).
- What are some common applications of the AD8674ARZ?
Common applications include high-quality PLL filters, medical and analytical instrumentation, precision power supply controls, and professional quality audio systems).
- What is the common-mode rejection ratio (CMRR) of the AD8674ARZ?
The CMRR of the AD8674ARZ is 106 to 115 dB).
- Can the AD8674ARZ handle capacitive loads?
Yes, the AD8674ARZ is stable with capacitive loads up to 1000 pF).
