Overview
The AD8513ARZ from Analog Devices Inc. is a quad-channel precision JFET operational amplifier. It is renowned for its low offset voltage, low input bias current, low input voltage noise, and low input current noise. This combination of characteristics makes the AD8513ARZ particularly suitable for applications requiring high precision and low noise, such as high impedance sensor amplification, precise current measurements using shunts, and various medical and electronic measurement instruments.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | - | - | 1800 | μV | |
| Input Bias Current | - | - | 0.9@±5V | pA | |
| Input Voltage Noise Density | f = 1 kHz | - | 8.0-10 | nV/√Hz | |
| Gain Bandwidth Product (GBP) | VS = ±5V | - | 8 | MHz | |
| Slew Rate (SR) | RL = 2 kΩ | - | 20 | V/μs | |
| Settling Time (tS) | To 0.1%, 0 V to 4 V step, G = +1 | - | 0.4 | μs | |
| Output Current (IOUT) | - | - | ±54 | mA | |
| Supply Current/Amplifier (ISY) | VO = 0 V, -40°C < TA < +125°C | - | 2.75 | mA | |
| Operating Temperature Range | - | -40 | 125 | °C | |
| Package Type | - | - | 14-Pin SOIC_N | - |
Key Features
- Low offset voltage and input bias current, making it suitable for high impedance sensor amplification and precise current measurements.
- Low input voltage noise and input current noise, enhancing its performance in low-noise applications.
- Fast settling time and high gain bandwidth product (8 MHz at VS = ±5V), ideal for medical instruments, electronic measurement, and automated test equipment.
- Excellent stability with capacitive loads, making it a perfect fit for high-performance filters.
- High output current and low distortion, suitable for audio applications.
- No output phase reversal when input voltages exceed the maximum common-mode voltage range.
Applications
- High impedance sensor amplification.
- Precise current measurements using shunts.
- Medical instruments.
- Electronic measurement and automated test equipment.
- High-performance filters.
- Photodiode amplifiers.
- Sensors.
- Audio applications.
Q & A
- What is the AD8513ARZ operational amplifier used for?
The AD8513ARZ is used in applications requiring high precision and low noise, such as high impedance sensor amplification, precise current measurements, medical instruments, electronic measurement, and automated test equipment.
- What are the key specifications of the AD8513ARZ?
Key specifications include low offset voltage (up to 1800 μV), low input bias current (0.9 pA at ±5V), low input voltage noise density (8-10 nV/√Hz at 1 kHz), and a gain bandwidth product of 8 MHz.
- What is the operating temperature range of the AD8513ARZ?
The operating temperature range is from -40°C to +125°C.
- What package types are available for the AD8513ARZ?
The AD8513ARZ is available in a 14-Pin SOIC_N package.
- Does the AD8513ARZ suffer from output phase reversal?
No, the AD8513ARZ does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
- What is the slew rate of the AD8513ARZ?
The slew rate is 20 V/μs with a load resistance of 2 kΩ.
- What are the typical supply current requirements for the AD8513ARZ?
The typical supply current per amplifier is 2.75 mA at VO = 0 V and over the -40°C to +125°C temperature range.
- Is the AD8513ARZ suitable for audio applications?
Yes, it is suitable for audio applications due to its low noise and distortion, high output current, and excellent speed.
- Can the AD8513ARZ handle capacitive loads?
Yes, the AD8513ARZ maintains its fast settling performance and stability even with substantial capacitive loads.
- What is the output current capability of the AD8513ARZ?
The output current capability is ±54 mA.
