Overview
The OP777ARM-REEL, produced by Analog Devices Inc., is a precision single-supply operational amplifier. It is part of the OP777, OP727, and OP747 family, which includes single, dual, and quad rail-to-rail output amplifiers. These amplifiers are known for their micropower operation and rail-to-rail output ranges, making them suitable for a variety of applications, including line-powered and portable instrumentation, remote sensor signal conditioning, and precision filters. The OP777 operates over an extended industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 1 | |
| Supply Voltage Range | 2.7 V to 30 V | |
| Supply Current per Amplifier | 220 μA to 320 μA | VO = 0 V, –40°C to +85°C |
| Input Offset Voltage (VOS) | 30 μV to 160 μV | +25°C |
| Input Offset Voltage Drift (ΔVOS/ΔT) | 0.3 μV/°C to 1.3 μV/°C | –40°C to +85°C |
| Input Bias Current (IB) | 5 nA to 10 nA | –40°C to +85°C |
| Input Offset Current (IOS) | 0.1 nA to 2 nA | –40°C to +85°C |
| Common Mode Rejection Ratio (CMRR) | 110 dB to 120 dB | VCM = –15 V to +14 V |
| Power Supply Rejection Ratio (PSRR) | 120 dB to 130 dB | VS = 3 V to 30 V |
| Slew Rate (SR) | 0.2 V/μs | RL = 2 kΩ |
| Gain Bandwidth Product (GBP) | 0.7 MHz | |
| Output Voltage High (VOH) | 4.88 V to 4.91 V | IL = 1 mA, –40°C to +85°C |
| Output Voltage Low (VOL) | 126 mV to 140 mV | IL = 1 mA, –40°C to +85°C |
| Output Current (IOUT) | ±10 mA | VDROPOUT < 1 V |
Key Features
- Rail-to-Rail Output: The OP777 provides rail-to-rail output ranges, allowing it to drive loads connected to the same supply voltage.
- Micropower Operation: The amplifier operates with a low supply current of less than 300 μA per amplifier at 5 V.
- High Accuracy: Features low input offset voltage and low offset voltage drift, ensuring high precision in applications.
- Stable with Capacitive Loads: Outputs are stable with capacitive loads of over 500 pF.
- Input Protection: 500 Ω series resistors protect the inputs, allowing input signal levels several volts above the positive supply without phase reversal.
- Extended Temperature Range: Specified over the extended industrial temperature range of –40°C to +85°C.
- High PSRR and CMRR: High power supply rejection ratio and common mode rejection ratio ensure minimal noise and interference.
Applications
- Line-Powered and Portable Instrumentation: Suitable for both line-powered and battery-powered instruments due to its low power consumption.
- Remote Sensor Signal Conditioning: Ideal for conditioning signals from remote sensors in various industrial and environmental monitoring applications.
- Precision Filters: Used in precision filter circuits where high accuracy and low noise are critical.
- General Purpose Amplification: Can be used in a wide range of general-purpose amplification tasks requiring high precision and low power consumption.
Q & A
- What is the supply voltage range of the OP777ARM-REEL?
The supply voltage range of the OP777ARM-REEL is from 2.7 V to 30 V.
- What is the typical supply current per amplifier for the OP777ARM-REEL?
The typical supply current per amplifier is less than 300 μA at 5 V.
- What is the input offset voltage (VOS) of the OP777ARM-REEL?
The input offset voltage (VOS) is between 30 μV and 160 μV at +25°C.
- How stable is the OP777ARM-REEL with capacitive loads?
The OP777ARM-REEL is stable with capacitive loads of over 500 pF.
- What is the common mode rejection ratio (CMRR) of the OP777ARM-REEL?
The CMRR is between 110 dB and 120 dB.
- What is the slew rate of the OP777ARM-REEL?
The slew rate is 0.2 V/μs.
- What are the typical applications of the OP777ARM-REEL?
Typical applications include line-powered and portable instrumentation, remote sensor signal conditioning, and precision filters.
- What is the operating temperature range of the OP777ARM-REEL?
The operating temperature range is –40°C to +85°C.
- Does the OP777ARM-REEL have input protection?
Yes, it has 500 Ω series resistors that protect the inputs.
- What is the power supply rejection ratio (PSRR) of the OP777ARM-REEL?
The PSRR is between 120 dB and 130 dB.
