Overview
The OP249FZ, produced by Analog Devices Inc., is a high-speed, precision dual JFET operational amplifier. It is designed to outperform other available dual amplifiers by offering superior speed and excellent DC performance. The OP249FZ is similar to the popular single op amp, the OP42, but provides enhanced capabilities in a dual configuration. This amplifier is ideal for applications requiring high speed, low distortion, and high precision, making it a versatile component for various electronic systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VCM = 0 V | 0.2 | 0.75 | 0.9 | mV |
| Offset Stability | 1.5 | 1.5 | µV/month | |||
| Input Bias Current | IB | VCM = 0 V, TA = 25°C | 30 | 75 | 75 | pA |
| Input Offset Current | IOS | VCM = 0 V, TA = 25°C | 6 | 25 | 25 | pA |
| Input Voltage Range | IVR | +12.5 | ±11 | -12.5 | V | |
| Common-Mode Rejection | CMR | VCM = ±11 V | 80 | 90 | 90 | dB |
| Power-Supply Rejection Ratio | PSRR | VS = ±4.5 V to ±18 V | 12 | 31.6 | 50 | µV/V |
| Large Signal Voltage Gain | AVO | VO = ±10 V, RL = 2 kΩ | 1000 | 1400 | 1200 | V/mV |
| Slew Rate | SR | RL = 2 kΩ, CL = 50 pF | 18 | 22 | V/µs | |
| Settling Time (0.01%) | tS | 10 V Step | 0.9 | 1.2 | µs |
Key Features
- High Speed: The OP249FZ boasts a slew rate of 22 V/µs typical and a fast settling time of less than 1.2 µs maximum to 0.01%, making it ideal for high-speed applications.
- Low Offset Voltage: With a typical offset voltage of 0.75 mV, the OP249FZ ensures high precision and accuracy in various applications.
- High Open-Loop Gain: The amplifier features an ultrahigh open-loop gain of 1 kV/mV minimum, enhancing its DC precision and accuracy in high closed-loop gain applications.
- Low Distortion: The OP249FZ exhibits ultralow distortion, making it suitable for professional audio applications and other high-fidelity systems.
- Unity-Gain Stability: The amplifier is stable at unity gain, ensuring reliable performance in a variety of configurations.
Applications
- Output Amplifier for Fast DACs and ADCs: Ideal for high-speed bipolar DAC and ADC applications due to its fast settling time and low distortion.
- Signal Processing: Suitable for signal processing applications requiring high speed and precision.
- Instrumentation Amplifiers: Used in instrumentation amplifiers where high accuracy and low noise are critical.
- Active Filters and High-Speed Integrators: Excellent for active filters and high-speed integrators due to its high slew rate and low distortion.
- Professional Audio Applications: Ideal for professional audio applications, including low distortion audio amplifiers.
- Servo Systems and Buffer Amplifiers: Used in servo systems and as buffer amplifiers where high speed and precision are required.
Q & A
- What is the typical slew rate of the OP249FZ?
The typical slew rate of the OP249FZ is 22 V/µs.
- What is the settling time of the OP249FZ to 0.01%?
The settling time of the OP249FZ to 0.01% is less than 1.2 µs maximum.
- What is the typical offset voltage of the OP249FZ?
The typical offset voltage of the OP249FZ is 0.75 mV.
- What is the open-loop gain of the OP249FZ?
The OP249FZ has an ultrahigh open-loop gain of 1 kV/mV minimum.
- What are some common applications of the OP249FZ?
The OP249FZ is commonly used in output amplifiers for fast DACs and ADCs, signal processing, instrumentation amplifiers, active filters, high-speed integrators, professional audio applications, servo systems, and buffer amplifiers.
- What is the power supply range for the OP249FZ?
The power supply range for the OP249FZ is ±4.5 V to ±18 V.
- What is the common-mode rejection ratio (CMR) of the OP249FZ?
The CMR of the OP249FZ is 80 dB to 90 dB.
- Is the OP249FZ stable at unity gain?
Yes, the OP249FZ is stable at unity gain.
- What is the input bias current of the OP249FZ?
The input bias current of the OP249FZ is typically 75 pA.
- What is the large signal voltage gain of the OP249FZ?
The large signal voltage gain of the OP249FZ is 1000 V/mV to 1400 V/mV.
