Overview
The AD8605ACBZ-REEL7, produced by Analog Devices Inc., is a single, rail-to-rail input and output, single-supply operational amplifier. It is part of the AD8605, AD8606, and AD8608 family, which includes single, dual, and quad configurations. This amplifier is known for its excellent DC and AC performance, making it suitable for a wide range of applications. The AD8605 features very low offset voltage, low input bias currents, and low noise, along with a wide signal bandwidth and high open-loop gain. It operates on a single supply voltage ranging from 2.7 V to 5.5 V, making it versatile for various power requirements.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VS = 3.5 V, VCM = 3 V | 20 | 65 | µV | |
| Input Bias Current | IB | −40°C < TA < +125°C | 0.2 | 1 | pA | |
| Input Offset Current | IOS | −40°C < TA < +125°C | 0.1 | 0.5 | pA | |
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 5 V | 85 | 100 | dB | |
| Large Signal Voltage Gain | AVO | RL = 2 kΩ, VO = 0.5 V to 4.5 V | 300 | 1000 | V/mV | |
| Output Voltage High | VOH | IL = 1 mA | 4.96 | 4.98 | V | |
| Output Voltage Low | VOL | IL = 1 mA | 20 | 40 | mV | |
| Output Current | IOUT | ±80 | mA | |||
| Power Supply Rejection Ratio | PSRR | VS = 2.7 V to 5.5 V | 80 | 95 | dB | |
| Supply Current/Amplifier | ISY | IOUT = 0 mA | 1 | 1.2 | mA | |
| Slew Rate | SR | RL = 2 kΩ, CL = 16 pF | 5 | V/µs |
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 superior precision without laser trimming.
- High slew rate: 5 V/µs.
- Low distortion, suitable for audio applications.
Applications
- Photodiode amplification.
- Battery-powered instrumentation.
- Multipole filters.
- Sensors and high impedance sensors.
- Barcode scanners.
- Audio amplification, especially in portable devices.
- Optical control loops.
- Portable and loop-powered instrumentation.
Q & A
- What is the typical offset voltage of the AD8605?
The typical offset voltage of the AD8605 is 65 µV.
- What is the input bias current range for the AD8605?
The input bias current for the AD8605 ranges from 0.2 pA to 1 pA.
- What is the common-mode rejection ratio (CMRR) of the AD8605?
The CMRR of the AD8605 is between 85 dB and 100 dB.
- What is the slew rate of the AD8605?
The slew rate of the AD8605 is 5 V/µs.
- What is the supply voltage range for the AD8605?
The AD8605 operates on a single supply voltage ranging from 2.7 V to 5.5 V.
- What are some common applications of the AD8605?
The AD8605 is commonly used in photodiode amplification, battery-powered instrumentation, multipole filters, sensors, barcode scanners, and audio amplification.
- What is the output current capability of the AD8605?
The AD8605 can provide an output current of up to ±80 mA.
- What is the power supply rejection ratio (PSRR) of the AD8605?
The PSRR of the AD8605 is between 80 dB and 95 dB.
- What is the typical supply current per amplifier for the AD8605?
The typical supply current per amplifier for the AD8605 is 1.2 mA.
- Is the AD8605 suitable for high-speed applications?
Yes, the AD8605 is suitable for high-speed applications due to its wide bandwidth and high slew rate.
