Overview
The AD8539ARZ is a precision, dual-channel operational amplifier produced by Analog Devices Inc. This amplifier is known for its high precision, low power consumption, and robust performance across a wide range of operating conditions. It is particularly suited for applications requiring low offset voltage, low input bias current, and high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR).
The AD8539ARZ operates on a single supply voltage from 2.7V to 5.5V or dual supply voltages from ±1.35V to ±2.5V, making it versatile for various applications including battery-powered devices and portable equipment. The amplifier is available in 8-lead, narrow body SOIC and 8-lead MSOP packages, ensuring ease of integration into different design configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | Zero-Drift | |
| Slew Rate | 0.4 | V/µs |
| Gain Bandwidth Product (GBP) | 430 | kHz |
| Input Bias Current (Ib) | 15 | pA |
| Input Offset Voltage (Vos) | 5 | µV |
| Supply Current per Channel | 170 | µA |
| Output Current per Channel | 25 | mA |
| Supply Voltage Range (Single Supply) | 2.7 to 5.5 | V |
| Supply Voltage Range (Dual Supply) | ±1.35 to ±2.5 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Common Mode Rejection Ratio (CMRR) | 135 | dB |
| Power Supply Rejection Ratio (PSRR) | 125 | dB |
| Package Type | 8-SOIC, 8-MSOP |
Key Features
- Low Offset Voltage: The AD8539ARZ features a very low input offset voltage of 5 µV, making it highly accurate for precision applications.
- Low Input Bias Current: With an input bias current of 15 pA, this amplifier minimizes errors due to input current.
- High CMRR and PSRR: High common-mode rejection ratio (135 dB) and power supply rejection ratio (125 dB) ensure robust performance against common-mode and power supply noise.
- Low Power Consumption: The amplifier operates with a supply current of less than 215 µA per channel, ideal for battery-powered devices.
- Wide Operating Temperature Range: Specified over the extended industrial temperature range of -40°C to 125°C.
- Compact Packaging: Available in 8-lead, narrow body SOIC and 8-lead MSOP packages for flexible design integration.
Applications
- Mobile Communications: Suitable for signal amplification in mobile communication devices due to its low power consumption and high precision.
- Portable Instrumentation: Ideal for portable instrumentation where low power and high accuracy are critical.
- Battery-Powered Devices: Optimized for use in battery-powered devices due to its low supply current.
- Sensor Interfaces: Used in sensor interfaces for accurate signal amplification.
- Temperature Measurement: Employed in temperature measurement applications requiring high precision and low drift.
- Electronic Scales: Suitable for electronic scales and other precision measurement instruments.
Q & A
- What is the input offset voltage of the AD8539ARZ?
The input offset voltage of the AD8539ARZ is 5 µV.
- What is the slew rate of the AD8539ARZ?
The slew rate of the AD8539ARZ is 0.4 V/µs.
- What is the gain bandwidth product (GBP) of the AD8539ARZ?
The gain bandwidth product (GBP) of the AD8539ARZ is 430 kHz.
- What is the operating temperature range of the AD8539ARZ?
The operating temperature range of the AD8539ARZ is -40°C to 125°C.
- What are the available package types for the AD8539ARZ?
The AD8539ARZ is available in 8-lead, narrow body SOIC and 8-lead MSOP packages.
- What is the typical supply current per channel for the AD8539ARZ?
The typical supply current per channel for the AD8539ARZ is less than 215 µA.
- What is the common-mode rejection ratio (CMRR) of the AD8539ARZ?
The common-mode rejection ratio (CMRR) of the AD8539ARZ is 135 dB.
- What is the power supply rejection ratio (PSRR) of the AD8539ARZ?
The power supply rejection ratio (PSRR) of the AD8539ARZ is 125 dB.
- Is the AD8539ARZ suitable for automotive applications?
Yes, the AD8539ARZ is qualified for automotive applications.
- What are some typical applications of the AD8539ARZ?
The AD8539ARZ is typically used in mobile communications, portable instrumentation, battery-powered devices, sensor interfaces, temperature measurement, and electronic scales.
