Overview
The AD8608ARU is a precision, low-noise, CMOS operational amplifier produced by Analog Devices Inc. This quad operational amplifier is known for its high performance and versatility, making it suitable for a wide range of applications. It features rail-to-rail input and output, low offset voltage, and low input bias currents, which are critical for precise signal processing.
The AD8608ARU is available in a 14-lead TSSOP package and operates over a temperature range of -40°C to +125°C, ensuring reliability in various environmental conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Number of Channels | - | - | 4 | - |
| GBP - Gain Bandwidth Product | - | - | 10 MHz | - |
| SR - Slew Rate | - | - | 5 V/μs | - |
| Vos - Input Offset Voltage | - | - | 80 μV | - |
| Current - Input Bias | 0.2 pA | - | 1 pA | - |
| Max Supply Voltage | - | - | 5.5 V | - |
| Supply Voltage - Min | - | - | 2.7 V | - |
| Current @ Pmpp | - | - | 1.15 mA | - |
| Load Current | - | - | 30 mA | - |
| CMRR - Common Mode Rejection Ratio | 75 dB | - | 100 dB | - |
| Input Voltage Noise Density | - | - | 8 nV/√Hz | - |
| Operating Temperature | -40°C | - | +125°C | - |
| Output Type | - | - | Rail-to-Rail | - |
| PSRR - Power Supply Rejection Ratio | 70 dB | - | 95 dB | - |
Key Features
- Rail-to-Rail Input and Output: Ensures that the amplifier can operate with input and output signals that range from the negative to the positive supply rail.
- Low Offset Voltage: Maximum offset voltage of 80 μV, which is crucial for precise signal processing.
- Low Input Bias Currents: Maximum input bias current of 1 pA, reducing the impact on the input signal.
- Low Noise: Voltage noise density of 8 nV/√Hz at 1 kHz, making it suitable for noise-sensitive applications.
- Wide Bandwidth: Unity gain bandwidth product of 10 MHz, allowing for high-frequency signal processing.
- High Open-Loop Gain: Up to 1000 V/mV, ensuring high accuracy in amplification.
- Single-Supply Operation: Operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- High CMRR and PSRR: Common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of up to 100 dB and 95 dB, respectively, ensuring robust performance against common-mode and power supply noise.
Applications
- Photodiode Amplification: Ideal for amplifying signals from photodiodes due to its low noise and high gain.
- Battery-Powered Instrumentation: Suitable for battery-powered devices due to its low power consumption and single-supply operation.
- Multipole Filters: Can be used in active filter designs requiring high precision and low noise.
- Sensors: Used in sensor signal conditioning due to its high accuracy and low noise characteristics.
- Barcode Scanners: Employed in barcode scanners for signal amplification and processing.
- Audio Applications: Suitable for audio circuits requiring low noise and high fidelity.
Q & A
- What is the operating temperature range of the AD8608ARU?
The AD8608ARU operates over a temperature range of -40°C to +125°C.
- What is the maximum supply voltage for the AD8608ARU?
The maximum supply voltage is 5.5 V.
- What is the typical input bias current of the AD8608ARU?
The typical input bias current is 0.2 pA to 1 pA.
- What is the gain bandwidth product (GBP) of the AD8608ARU?
The GBP is 10 MHz.
- What is the common-mode rejection ratio (CMRR) of the AD8608ARU?
The CMRR is up to 100 dB.
- What is the power supply rejection ratio (PSRR) of the AD8608ARU?
The PSRR is up to 95 dB.
- What is the output type of the AD8608ARU?
The output type is rail-to-rail.
- What are some common applications of the AD8608ARU?
Common applications include photodiode amplification, battery-powered instrumentation, multipole filters, sensors, barcode scanners, and audio applications.
- What is the package type of the AD8608ARU?
The package type is 14-lead TSSOP.
- What is the slew rate of the AD8608ARU?
The slew rate is 5 V/μs.
