Overview
The OP481GSZ is a quad ultralow power, rail-to-rail output operational amplifier produced by Analog Devices Inc. This amplifier is designed for low-power applications and features a precision bipolar input stage and an output that swings to within millivolts of the supply voltages. The OP481GSZ is fabricated on Analog Devices' CBCMOS process, ensuring high performance and low power consumption.
Key Specifications
| Parameter | Symbol | Conditions | Typical Value | Unit |
|---|---|---|---|---|
| Number of Channels | - | - | 4 | - |
| Supply Voltage Range | Vs | - | 2.7 V to 12 V | V |
| Input Offset Voltage | Vos | -40°C ≤ TA ≤ +85°C | 1.5 mV | mV |
| Input Bias Current | Ib | -40°C ≤ TA ≤ +85°C | 3 nA | nA |
| Slew Rate | SR | RL = 100 kΩ, CL = 50 pF | 28 mV/μs | mV/μs |
| Gain Bandwidth Product | GBP | - | 105 kHz | kHz |
| Output Voltage High | VOH | RL = 100 kΩ to GND | 2.925 V | V |
| Output Voltage Low | VOL | RL = 100 kΩ to V+ | 25 mV | mV |
| Supply Current per Amplifier | ISY | VO = 0 V | 4 μA | μA |
| Operating Temperature Range | - | - | -40°C to +85°C | °C |
Key Features
- Ultralow Power Consumption: The OP481GSZ has a maximum supply current of 4 μA per amplifier, making it suitable for battery-powered and low-power applications.
- Rail-to-Rail Output: The output swings to within millivolts of the supply voltages, ensuring maximum signal range.
- Low Offset Voltage: With a typical input offset voltage of 1.5 mV, this amplifier provides high accuracy in signal processing.
- Wide Input Voltage Range: The amplifier operates with supply voltages ranging from 2.7 V to 12 V, making it versatile for various applications.
- No Phase Reversal: The OP481GSZ does not exhibit phase reversal, ensuring stable operation even when the input voltage exceeds the supply voltage.
- Fast Saturation Recovery Time: With a saturation recovery time of 65 μs, this amplifier is suitable for applications requiring quick recovery from saturation.
Applications
- Battery-Powered Instrumentation: Ideal for portable and battery-powered devices due to its low power consumption.
- Safety Monitoring: Used in safety monitoring systems where low power and high accuracy are critical.
- Remote Sensors: Suitable for remote sensor applications where power efficiency is essential.
- Low Voltage Strain Gage Amplifiers: Used in strain gage amplifiers where low noise and high accuracy are required.
- Comparator Applications: Can be used as a comparator in very low power systems due to its fast saturation recovery time and rail-to-rail output.
Q & A
- What is the typical input offset voltage of the OP481GSZ?
The typical input offset voltage of the OP481GSZ is 1.5 mV.
- What is the supply current per amplifier for the OP481GSZ?
The supply current per amplifier for the OP481GSZ is typically 4 μA.
- What is the operating temperature range of the OP481GSZ?
The operating temperature range of the OP481GSZ is -40°C to +85°C.
- Does the OP481GSZ exhibit phase reversal?
No, the OP481GSZ does not exhibit phase reversal.
- What is the slew rate of the OP481GSZ?
The slew rate of the OP481GSZ is typically 28 mV/μs.
- What is the gain bandwidth product of the OP481GSZ?
The gain bandwidth product of the OP481GSZ is 105 kHz.
- What is the output voltage high for the OP481GSZ?
The output voltage high for the OP481GSZ is typically 2.925 V with RL = 100 kΩ to GND.
- What is the package type of the OP481GSZ?
The OP481GSZ is available in a 14-SOIC package.
- Is the OP481GSZ RoHS compliant?
- What are some common applications of the OP481GSZ?
The OP481GSZ is commonly used in battery-powered instrumentation, safety monitoring, remote sensors, and low voltage strain gage amplifiers).
