Overview
The AD8608ARU-REEL, produced by Analog Devices Inc., is a quad rail-to-rail input and output, single-supply operational amplifier. This component is part of the AD8605, AD8606, and AD8608 family, which are known for their high precision and low noise characteristics. The AD8608ARU-REEL is particularly suited for applications requiring multiple amplifiers due to its quad configuration.
It features the patented DigiTrim® trimming technique, which ensures very low offset voltage and low input bias currents. The amplifier operates on a single supply voltage ranging from 2.7 V to 5.5 V, making it versatile for various battery-powered and low-voltage applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VS = 5 V, VCM = 0 V to 5 V | 80 | 300 | 750 | μV |
| Input Bias Current | IB | −40°C < TA < +125°C | 0.2 | 1 | 300 | pA |
| Input Offset Current | IOS | −40°C < TA < +125°C | 0.1 | 0.5 | 75 | pA |
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 5 V | 85 | 100 | 90 | dB |
| Large Signal Voltage Gain | AVO | RL = 2 kΩ, VO = 0.5 V to 4.5 V | 300 | 1000 | V/mV | |
| Slew Rate | SR | RL = 2 kΩ, CL = 16 pF | 5 | V/μs | ||
| Unity Gain Bandwidth Product | GBP | 9 | MHz | |||
| Voltage Noise Density | en | f = 1 kHz | 8 | 12 | nV/√Hz | |
| Supply Current/Amplifier | ISY | IOUT = 0 mA | 1 | 1.2 | 1.4 | mA |
Key Features
- Very low offset voltage: up to 65 μV maximum.
- Low input bias currents: up to 1 pA maximum.
- Low noise: 8 nV/√Hz voltage noise density at 1 kHz.
- Wide bandwidth: 10 MHz.
- High open-loop gain: 1000 V/mV.
- Unity gain stable.
- Single-supply operation: 2.7 V to 5.5 V.
- Rail-to-rail input and output.
- Patented DigiTrim® trimming technique for precise offset voltage control.
- Low power consumption: supply current per amplifier is typically 1.2 mA.
Applications
- Photodiode amplification.
- Battery-powered instrumentation.
- Multipole filters.
- Sensors.
- Barcode scanners.
- Audio applications.
Q & A
- What is the typical supply voltage range for the AD8608ARU-REEL?
The AD8608ARU-REEL operates on a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the maximum offset voltage of the AD8608ARU-REEL?
The maximum offset voltage is up to 65 μV.
- What is the input bias current of the AD8608ARU-REEL?
The input bias current is up to 1 pA maximum.
- What is the common-mode rejection ratio (CMRR) of the AD8608ARU-REEL?
The CMRR is typically 100 dB for VCM = 0 V to 5 V.
- What is the slew rate of the AD8608ARU-REEL?
The slew rate is 5 V/μs with RL = 2 kΩ and CL = 16 pF.
- What is the unity gain bandwidth product (GBP) of the AD8608ARU-REEL?
The GBP is 9 MHz.
- What are some common applications of the AD8608ARU-REEL?
Common applications include photodiode amplification, battery-powered instrumentation, multipole filters, sensors, barcode scanners, and audio applications.
- How does the DigiTrim® trimming technique benefit the AD8608ARU-REEL?
The DigiTrim® technique ensures very low offset voltage by precisely trimming the offset voltage during the manufacturing process.
- What is the typical supply current per amplifier for the AD8608ARU-REEL?
The typical supply current per amplifier is 1.2 mA.
- Is the AD8608ARU-REEL unity gain stable?
Yes, the AD8608ARU-REEL is unity gain stable.
