Overview
The AD8529ARZ is a dual operational amplifier produced by Analog Devices Inc. It is known for its high performance and versatility, making it suitable for a wide range of applications. This amplifier features rail-to-rail output swing, low offset voltage, and high bandwidth, which are essential for maintaining signal integrity and dynamic range in various electronic systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C ≤ TA ≤ +125°C | 700 | 1100 | 1200 | μV |
| Input Bias Current | IB | 300 | nA | |||
| Input Offset Current | IOS | ±50 | nA | |||
| Input Voltage Range | VCM | 0 | 2 | V | ||
| Common-Mode Rejection Ratio | CMRR | 0 V ≤ VCM ≤ 2.0 V, −40°C ≤ TA ≤ +125°C | 55 | 75 | dB | |
| Large Signal Voltage Gain | AVO | RL = 2 kΩ, 0.5 V < VOUT < 2.5 V | 20 | V/mV | ||
| Output Voltage Swing High | VOH | IL = 250 μA | 2.90 | V | ||
| Output Voltage Swing Low | VOL | IL = 250 μA | 100 | mV | ||
| Slew Rate | SR | 1 V < VOUT < 4 V, RL = 10 kΩ | 2.9 | V/μs | ||
| Gain Bandwidth Product | GBP | 8 | MHz | |||
| Phase Margin | Φm | 60 | Degrees | |||
| Supply Current/Amplifier | ISY | VOUT = 2.5 V, −40°C ≤ TA ≤ +125°C | 600 | 1200 | 1400 | μA |
| Power Supply Rejection Ratio | PSRR | VS = 2.7 V to 7 V, −40°C ≤ TA ≤ +125°C | 80 | 110 | dB |
Key Features
- Space-saving packaging: Available in 8-lead SOIC and 8-lead MSOP packages, making it ideal for compact designs.
- Wide bandwidth: 8 MHz at 5 V supply voltage, ensuring high-frequency performance.
- Low offset voltage: Maximum of 1.2 mV, contributing to high accuracy in signal processing.
- Rail-to-rail output swing: Provides a larger dynamic range compared to standard video op amps.
- High slew rate: 2.9 V/μs, suitable for driving ASIC inputs such as voice codecs.
- Unity gain stable: Ensures stability in various gain configurations.
- Single-supply operation: Operates from 2.7 V to 12 V, making it versatile for different power supply scenarios.
- Low supply current: Ideal for battery-powered applications due to its low power consumption.
- Extended industrial temperature range: Specified from −40°C to +125°C, suitable for harsh environments.
Applications
- Portable communications: Suitable for handheld devices due to its low power consumption and compact packaging.
- Microphone amplifiers: Ideal for audio applications requiring high signal integrity and low noise.
- Battery-powered applications: Low supply current makes it suitable for devices powered by batteries.
- ASIC input driving: High slew rate makes it a good match for driving voice codecs and other ASIC inputs.
- Sensor interfacing: The small SC70 package allows placement next to sensors, reducing external noise pickup.
Q & A
- What is the maximum offset voltage of the AD8529ARZ?
The maximum offset voltage is 1200 μV over the temperature range of −40°C to +125°C.
- What is the slew rate of the AD8529ARZ?
The slew rate is 2.9 V/μs for 1 V < VOUT < 4 V with RL = 10 kΩ.
- What are the available package types for the AD8529ARZ?
The AD8529ARZ is available in 8-lead SOIC and 8-lead MSOP packages.
- What is the gain bandwidth product of the AD8529ARZ?
The gain bandwidth product is 8 MHz.
- What is the phase margin of the AD8529ARZ?
The phase margin is 60 degrees.
- What is the typical supply current per amplifier for the AD8529ARZ?
The typical supply current per amplifier is 1200 μA at VOUT = 2.5 V.
- What is the power supply rejection ratio (PSRR) of the AD8529ARZ?
The PSRR is 80 dB to 110 dB for VS = 2.7 V to 7 V over the temperature range of −40°C to +125°C.
- Is the AD8529ARZ suitable for high-temperature environments?
Yes, it is specified over the extended industrial temperature range of −40°C to +125°C.
- What are some common applications of the AD8529ARZ?
Common applications include portable communications, microphone amplifiers, battery-powered devices, and ASIC input driving.
- Why is the AD8529ARZ preferred for battery-powered applications?
The AD8529ARZ is preferred due to its low supply current, making it ideal for battery-powered devices.
