Overview
The OP284FS-REEL, produced by Analog Devices Inc., is a dual operational amplifier known for its precision and versatility in various electronic applications. This amplifier features rail-to-rail inputs and outputs, making it ideal for single-supply operations ranging from 3 V to 36 V or dual-supply operations from ±1.5 V to ±18 V. The OP284FS is part of the OP284 series, which is renowned for its wide bandwidth, low noise, and high precision, making it suitable for both AC and DC performance requirements.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C ≤ TA ≤ +125°C | 100 μV | 175 μV | 350 μV | μV |
| Input Bias Current | IB | −40°C ≤ TA ≤ +125°C | 80 nA | 450 nA | 600 nA | nA |
| Input Offset Current | IOS | −40°C ≤ TA ≤ +125°C | 50 nA | nA | ||
| Input Voltage Range | −15 V | +15 V | V | |||
| Common-Mode Rejection Ratio | CMRR | VCM = −14.0 V to +14.0 V, −40°C ≤ TA ≤ +125°C | 86 dB | 90 dB | dB | |
| Slew Rate | SR | RL = 2 kΩ | 2.4 V/μs | 4.0 V/μs | V/μs | |
| Gain Bandwidth Product | GBP | 3.25 MHz | 4.25 MHz | MHz | ||
| Voltage Noise Density | en | f = 1 kHz | 3.9 nV/√Hz | nV/√Hz | ||
| Output Current | IOUT | ±6.5 mA | mA | |||
| Supply Current/Amplifier | ISY | VOUT = 2.5 V, −55°C ≤ TA ≤ +125°C | 1.45 mA | 2.25 mA | mA |
Key Features
- Rail-to-Rail Inputs and Outputs: The OP284FS can operate with inputs and outputs that swing from the negative to the positive supply rail, enhancing its usability in single-supply applications.
- Wide Bandwidth: With a gain bandwidth product of up to 4.25 MHz, this amplifier is suitable for applications requiring high-frequency performance.
- Low Offset Voltage: Featuring an offset voltage as low as 100 μV, the OP284FS ensures high precision in DC applications.
- High Slew Rate: A slew rate of up to 4.0 V/μs allows for fast signal transitions.
- Low Noise: The amplifier has a low voltage noise density of 3.9 nV/√Hz, making it ideal for noise-sensitive applications.
- Unity-Gain Stable: The OP284FS is stable when used in unity-gain configurations, which is beneficial for many buffer and amplifier applications.
Applications
- Battery-Powered Instrumentation: The low power consumption and single-supply operation make the OP284FS suitable for battery-powered devices.
- Power Supply Control and Protection: It can be used to monitor and control power supply outputs, ensuring stability and protection.
- Telecommunications: The amplifier is useful in portable telecommunications equipment due to its low power consumption and high performance.
- DAC Output Amplifier and ADC Input Buffer: It can be used to amplify or buffer signals from digital-to-analog converters (DACs) and analog-to-digital converters (ADCs).
- Sensors and Transducers: The rail-to-rail input capability makes it ideal for amplifying signals from Hall effect, piezoelectric, and resistive transducers.
Q & A
- What is the operating voltage range of the OP284FS?
The OP284FS operates from 3 V to 36 V in single-supply mode or from ±1.5 V to ±18 V in dual-supply mode.
- What is the gain bandwidth product of the OP284FS?
The gain bandwidth product of the OP284FS is up to 4.25 MHz.
- What is the slew rate of the OP284FS?
The slew rate of the OP284FS is up to 4.0 V/μs.
- What is the typical voltage noise density of the OP284FS?
The typical voltage noise density is 3.9 nV/√Hz.
- Is the OP284FS unity-gain stable?
Yes, the OP284FS is unity-gain stable.
- What are some common applications of the OP284FS?
Common applications include battery-powered instrumentation, power supply control and protection, telecommunications, DAC output amplifiers, ADC input buffers, and sensor amplification.
- What is the maximum output current of the OP284FS?
The maximum output current is ±6.5 mA.
- What is the typical supply current per amplifier?
The typical supply current per amplifier is around 1.45 mA to 2.25 mA depending on the output voltage and temperature range.
- Does the OP284FS support rail-to-rail input and output operations?
Yes, the OP284FS supports rail-to-rail input and output operations.
- What is the common-mode rejection ratio (CMRR) of the OP284FS?
The CMRR is typically around 86 dB to 90 dB.
