Overview
The OP284ESZ is a dual, single-supply operational amplifier produced by Analog Devices Inc. It is part of the OP184/OP284/OP484 family, known for its precision and versatility in various applications. This amplifier features rail-to-rail inputs and outputs, making it ideal for single-supply systems that require both AC and precision DC performance. The OP284ESZ operates over a wide voltage range from 3 V to 36 V (or ±1.5 V to ±18 V), making it suitable for a broad range of electronic systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage (OP284E Grade) | VOS | −40°C ≤ TA ≤ +125°C | 65 μV | 165 μV | μV | |
| Offset Voltage (OP284F Grade) | VOS | −40°C ≤ TA ≤ +125°C | 125 μV | 350 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 | ||
| Input Voltage Range | 0 V | 3 V | V | |||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 3 V, −40°C ≤ TA ≤ +125°C | 56 dB | 60 dB | dB | |
| Bandwidth | 4 MHz | MHz | ||||
| Slew Rate | 4.0 V/μs | V/μs | ||||
| Noise | 3.9 nV/√Hz | nV/√Hz |
Key Features
- Single-Supply Operation: The OP284ESZ can operate from a single supply voltage ranging from 3 V to 36 V (or ±1.5 V to ±18 V).
- Rail-to-Rail Inputs and Outputs: This feature allows the amplifier to swing its input and output voltages to the supply rails, making it highly versatile for single-supply applications.
- Wide Bandwidth: With a bandwidth of 4 MHz, the OP284ESZ is suitable for applications requiring high-frequency performance.
- Low Offset Voltage: The amplifier has a low offset voltage, typically 65 μV for the E grade and 125 μV for the F grade, ensuring high precision.
- High Slew Rate: A slew rate of 4.0 V/μs enables the amplifier to handle rapid changes in input signals.
- Low Noise: The noise level is 3.9 nV/√Hz, which is beneficial for applications requiring low noise performance.
- Unity-Gain Stable: The OP284ESZ is stable when used in unity-gain configurations, making it flexible for various circuit designs.
Applications
- Battery-Powered Instrumentation: The low power consumption and single-supply operation make it ideal for battery-powered devices.
- Power Supply Control and Protection: The amplifier can be used in power supply circuits for control and protection functions.
- Telecommunications: Suitable for use in portable telecommunications equipment due to its low power and high performance characteristics.
- ADC and DAC Buffers: Can be used as input buffers for ADCs and output amplifiers for DACs.
- Sensors and Transducers: Ideal for amplifying signals from sensors such as Hall effect, piezoelectric, and resistive transducers.
- Filters and Instrumentation: The wide bandwidth and precision make it suitable for building multistage filters and other instrumentation circuits.
Q & A
- What is the operating voltage range of the OP284ESZ?
The OP284ESZ operates from a single supply voltage ranging from 3 V to 36 V (or ±1.5 V to ±18 V).
- What is the bandwidth of the OP284ESZ?
The bandwidth of the OP284ESZ is 4 MHz.
- What is the typical offset voltage of the OP284ESZ?
The typical offset voltage for the E grade is 65 μV and for the F grade is 125 μV.
- Is the OP284ESZ unity-gain stable?
Yes, the OP284ESZ is unity-gain stable.
- What is the slew rate of the OP284ESZ?
The slew rate of the OP284ESZ is 4.0 V/μs.
- What is the noise level of the OP284ESZ?
The noise level of the OP284ESZ is 3.9 nV/√Hz.
- Can the OP284ESZ be used in battery-powered devices?
Yes, the OP284ESZ is suitable for battery-powered instrumentation due to its low power consumption and single-supply operation.
- What types of sensors can the OP284ESZ be used with?
The OP284ESZ can be used with sensors such as Hall effect, piezoelectric, and resistive transducers.
- Is the OP284ESZ suitable for telecommunications equipment?
Yes, the OP284ESZ is suitable for use in portable telecommunications equipment.
- Can the OP284ESZ be used as a buffer for ADCs and DACs?
Yes, the OP284ESZ can be used as input buffers for ADCs and output amplifiers for DACs.
