Overview
The AD8626ARMZ is a precision operational amplifier produced by Analog Devices Inc. It is part of the AD862x series, known for its high performance and versatility. This amplifier features true single-supply operation, low power consumption, and rail-to-rail input and output swing, making it suitable for a wide range of applications. The AD8626ARMZ is particularly noted for its low offset voltage, low input bias current, and high common-mode rejection ratio (CMRR), which contribute to its precision and reliability.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | -40°C < TA < +85°C | 0.05 | 0.5 | 1.2 | mV |
| Input Bias Current | IB | -40°C < TA < +85°C | 0.25 | 1 | 60 | pA |
| Input Offset Current | IOS | -40°C < TA < +85°C | 0.5 | - | 25 | pA |
| Input Voltage Range | - | - | 0 | - | 3 | V |
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 2.5 V | 66 | 87 | - | dB |
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, VO = 0.5 V to 4.5 V | 100 | 230 | - | V/mV |
| Output Voltage High | VOH | IL = 2 mA, -40°C < TA < +85°C | 4.90 | 4.92 | - | V |
| Output Voltage Low | VOL | IL = 2 mA, -40°C < TA < +85°C | 0.075 | 0.08 | - | V |
| Supply Current/Amplifier | ISY | -40°C < TA < +85°C | 630 | 785 | 800 | µA |
| Slew Rate | SR | - | - | 5 | - | V/µs |
| Gain Bandwidth Product | GBP | - | - | 5 | - | MHz |
| Phase Margin | ØM | - | - | 60 | - | Degrees |
Key Features
- Rail-to-Rail Input and Output Swing: The AD8626ARMZ can swing nearly rail-to-rail at both the input and output, making it highly versatile for various applications.
- Low Power Consumption: The amplifier operates with low supply current, typically 785 µA per amplifier, which is beneficial for power-sensitive designs.
- High Precision: It features low offset voltage (typically 0.5 mV) and low input bias current (typically 1 pA), ensuring high precision in signal amplification.
- High CMRR and PSRR: The amplifier has a high common-mode rejection ratio (CMRR) of 87 dB and power-supply rejection ratio (PSRR) of 104 dB, enhancing its ability to reject noise and interference.
- Wide Operating Temperature Range: The AD8626ARMZ operates over a temperature range of -40°C to +85°C, making it suitable for various environmental conditions.
Applications
- Buffering CMOS DACs, ASICs, and Other Wide Dynamic Range Signals: The rail-to-rail input and output capabilities make it ideal for buffering a wide range of signals.
- Medical Instrumentation: Its high precision and low noise characteristics are beneficial in medical applications such as thermocouple amplifiers and photodiode amplifiers.
- Automotive Sensors: The amplifier can be used in automotive sensors, pressure and position sensors, and strain gage amplifiers due to its robust performance over a wide temperature range.
- Precision Current Sensing: It is suitable for precision current sensing applications where high accuracy and low noise are critical.
Q & A
- What is the typical offset voltage of the AD8626ARMZ?
The typical offset voltage of the AD8626ARMZ is 0.5 mV. - What is the input bias current of the AD8626ARMZ?
The typical input bias current is 1 pA. - What is the common-mode rejection ratio (CMRR) of the AD8626ARMZ?
The CMRR is typically 87 dB. - What is the slew rate of the AD8626ARMZ?
The slew rate is 5 V/µs. - What is the gain bandwidth product (GBP) of the AD8626ARMZ?
The GBP is 5 MHz. - What is the phase margin of the AD8626ARMZ?
The phase margin is 60 degrees. - What is the typical supply current per amplifier for the AD8626ARMZ?
The typical supply current per amplifier is 785 µA. - What is the operating temperature range of the AD8626ARMZ?
The operating temperature range is -40°C to +85°C. - Can the AD8626ARMZ be used in automotive applications?
Yes, it can be used in automotive applications due to its robust performance over a wide temperature range and other suitable characteristics. - Is the AD8626ARMZ suitable for medical instrumentation?
Yes, it is suitable for medical instrumentation due to its high precision and low noise characteristics.
