Overview
The OP777ARZ is a precision micropower single-supply operational amplifier produced by Analog Devices Inc. This amplifier is known for its rail-to-rail output and low power consumption, making it suitable for a variety of applications where precision and efficiency are crucial. The OP777ARZ is available in an 8-pin SOIC package and is RoHS compliant.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | +25°C < T_A < +85°C | 20 | 100 | 200 | μV |
| Input Offset Voltage | VOS | –40°C < T_A < +85°C | 50 | 200 | 300 | μV |
| Input Bias Current | IB | –40°C < T_A < +85°C | 5.5 | 11 | nA | |
| Input Offset Current | IOS | –40°C < T_A < +85°C | 0.1 | 2 | nA | |
| Input Voltage Range | 0 | 4 | V | |||
| Common-Mode Rejection Ratio | CMRR | V_CM = 0 V to 4 V | 104 | 110 | dB | |
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, VO = 0.5 V to 4.5 V | 300 | 500 | V/mV | |
| Output Voltage High | VOH | IL = 1 mA, –40°C to +85°C | 4.88 | 4.91 | V | |
| Output Voltage Low | VOL | IL = 1 mA, –40°C to +85°C | 126 | 140 | mV | |
| Supply Current/Amplifier | ISY | VO = 0 V, –40°C < T_A < +85°C | 220 | 270 | μA | |
| Power Supply Rejection Ratio | PSRR | VS = 3 V to 30 V | 120 | 130 | dB | |
| Gain Bandwidth Product | 700 | kHz |
Key Features
- Rail-to-Rail Output: The OP777ARZ features rail-to-rail output, allowing it to drive loads connected to the same supply voltage as the amplifier.
- Micropower Operation: This amplifier is designed for low power consumption, with a supply current of 220 μA to 270 μA per amplifier.
- High Precision: It offers low input offset voltage and high common-mode rejection ratio, making it suitable for precision applications.
- Wide Supply Range: The OP777ARZ can operate over a wide supply voltage range from 2.7 V to 30 V.
- Low Input Bias Current: The input bias current is very low, typically around 5.5 nA to 11 nA, which is beneficial for high impedance sources.
Applications
- Instrumentation: Due to its high precision and low noise, the OP777ARZ is ideal for instrumentation applications such as data acquisition systems and medical devices.
- Industrial Control Systems: It can be used in industrial control systems where precision and reliability are essential.
- Portable Equipment: The micropower operation makes it suitable for battery-powered devices and other portable equipment.
- Sensor Interfaces: The OP777ARZ can be used to interface with various sensors due to its high input impedance and low noise characteristics.
Q & A
- What is the typical supply current of the OP777ARZ?
The typical supply current of the OP777ARZ is 220 μA to 270 μA per amplifier.
- What is the input offset voltage range of the OP777ARZ?
The input offset voltage range of the OP777ARZ is typically 20 μV to 200 μV at +25°C to +85°C and 50 μV to 300 μV at –40°C to +85°C.
- What is the gain bandwidth product of the OP777ARZ?
The gain bandwidth product of the OP777ARZ is 700 kHz.
- What is the common-mode rejection ratio of the OP777ARZ?
The common-mode rejection ratio of the OP777ARZ is typically 104 dB to 110 dB.
- What is the output voltage range of the OP777ARZ?
The output voltage range of the OP777ARZ is rail-to-rail, allowing it to drive loads connected to the same supply voltage as the amplifier.
- What package types are available for the OP777ARZ?
The OP777ARZ is available in an 8-pin SOIC package.
- Is the OP777ARZ RoHS compliant?
Yes, the OP777ARZ is RoHS compliant.
- What is the typical input bias current of the OP777ARZ?
The typical input bias current of the OP777ARZ is 5.5 nA to 11 nA.
- What is the power supply rejection ratio of the OP777ARZ?
The power supply rejection ratio of the OP777ARZ is typically 120 dB to 130 dB.
- What are some common applications of the OP777ARZ?
The OP777ARZ is commonly used in instrumentation, industrial control systems, portable equipment, and sensor interfaces due to its precision and low power consumption.
