Overview
The OP284FS from Analog Devices Inc. is a dual operational amplifier known for its precision and versatility. This device features rail-to-rail input and output capabilities, making it ideal for single-supply applications that require both AC and precision DC performance. The OP284FS operates over a wide voltage range, from 3 V to 36 V in single-supply mode or from ±1.5 V to ±18 V in dual-supply mode. Its combination of wide bandwidth, low noise, and high precision makes it suitable for a variety of applications, including instrumentation, filters, and telecommunications equipment.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C ≤ TA ≤ +125°C | 65 μV | 175 μV | 375 μV | μV |
| Input Bias Current | IB | −40°C ≤ TA ≤ +125°C | 60 nA | 450 nA | 600 nA | nA |
| Input Offset Current | IOS | −40°C ≤ TA ≤ +125°C | 50 nA | nA | ||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 3 V, −40°C ≤ TA ≤ +125°C | 56 dB | 90 dB | dB | |
| Gain Bandwidth Product | 4 MHz | MHz | ||||
| Slew Rate | 4.0 V/μs | V/μs | ||||
| Noise | 3.9 nV/√Hz | nV/√Hz | ||||
| Operating Voltage Range | 3 V to 36 V (single-supply) | ±1.5 V to ±18 V (dual-supply) | V | |||
| Package | 8-SOIC | |||||
| Temperature Range | −40°C to +125°C | °C |
Key Features
- Rail-to-Rail Input and Output: The OP284FS can operate with inputs and outputs that swing from the negative to the positive supply rail, enhancing its utility in single-supply applications.
- Wide Bandwidth: A gain bandwidth product of 4 MHz, making it suitable for applications requiring high-frequency performance.
- Low Offset Voltage: With a typical offset voltage of 175 μV, this amplifier ensures high precision in DC applications.
- High Slew Rate: A slew rate of 4.0 V/μs allows for fast signal transitions.
- Low Noise: A noise level of 3.9 nV/√Hz, which is crucial for noise-sensitive applications.
- Unity-Gain Stable: The OP284FS is stable when used in unity-gain configurations, which is beneficial for many application circuits.
Applications
- Battery-Powered Instrumentation: Ideal for portable instrumentation due to its low power consumption and single-supply operation.
- Power Supply Control and Protection: Used in power supply circuits for control and protection functions.
- Telecommunications: Suitable for use in telecommunications equipment, especially in portable devices.
- Filters and Instrumentation: The combination of wide bandwidth and low noise makes it useful in filter circuits and instrumentation applications.
- ADC and DAC Buffers: Often used as input buffers for ADCs and output buffers for DACs due to its rail-to-rail capabilities.
- Sensors and Transducers: Used with Hall effect, piezoelectric, and resistive transducers that require rail-to-rail input amplifiers.
Q & A
- What is the typical gain bandwidth product of the OP284FS?
The typical gain bandwidth product of the OP284FS is 4 MHz.
- What is the operating voltage range for 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 typical offset voltage of the OP284FS?
The typical offset voltage of the OP284FS is 175 μV.
- What is the slew rate of the OP284FS?
The slew rate of the OP284FS is 4.0 V/μs.
- Is the OP284FS unity-gain stable?
Yes, the OP284FS is unity-gain stable.
- What is the noise level of the OP284FS?
The noise level of the OP284FS is 3.9 nV/√Hz.
- What package options are available for the OP284FS?
The OP284FS is available in an 8-SOIC package.
- What is the temperature range for the OP284FS?
The OP284FS operates over a temperature range of −40°C to +125°C.
- What are some common applications for the OP284FS?
Common applications include battery-powered instrumentation, power supply control and protection, telecommunications, filters, and instrumentation.
- Can the OP284FS be used with sensors and transducers?
Yes, the OP284FS can be used with Hall effect, piezoelectric, and resistive transducers.
