Overview
The OP747ARZ is a precision quad rail-to-rail output single-supply operational amplifier produced by Analog Devices Inc. This amplifier is designed for micropower operation and features rail-to-rail output ranges, making it suitable for a variety of applications requiring high precision and low power consumption. The OP747ARZ offers improved performance over industry-standard amplifiers, with the added benefit of true single-supply operation down to 3 V and smaller package options.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | +25°C < T_A < +85°C | 30 | 160 | μV | |
| Offset Voltage | VOS | –40°C < T_A < +85°C | 50 | 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 | |
| Operating Temperature Range | –40°C | +85°C | °C |
Key Features
- Precision quad rail-to-rail output single-supply operational amplifier.
- Micropower operation with supply current less than 300 μA per amplifier at 5 V.
- True single-supply operation down to 3 V.
- Small package options including 14-lead TSSOP and narrow 14-lead SO packages.
- Outputs are stable with capacitive loads of over 500 pF.
- 500 Ω series resistors protect the inputs, allowing input signal levels several volts above the positive supply without phase reversal.
- Extended industrial temperature range of –40°C to +85°C.
Applications
- Line-powered and portable instrumentation.
- Remote sensor signal conditioning.
- Precision filters.
- Any application requiring high precision, low power consumption, and single-supply operation.
Q & A
- What is the OP747ARZ operational amplifier?
The OP747ARZ is a precision quad rail-to-rail output single-supply operational amplifier produced by Analog Devices Inc.
- What are the key features of the OP747ARZ?
Key features include micropower operation, true single-supply operation down to 3 V, rail-to-rail output ranges, and small package options.
- What is the typical supply current per amplifier for the OP747ARZ?
The typical supply current per amplifier is less than 300 μA at 5 V.
- What is the operating temperature range of the OP747ARZ?
The operating temperature range is –40°C to +85°C.
- What types of packages are available for the OP747ARZ?
The OP747ARZ is available in 14-lead TSSOP and narrow 14-lead SO packages.
- What are some common applications for the OP747ARZ?
Common applications include line-powered and portable instrumentation, remote sensor signal conditioning, and precision filters.
- How stable are the outputs of the OP747ARZ with capacitive loads?
The outputs are stable with capacitive loads of over 500 pF.
- What protection do the inputs of the OP747ARZ have?
The inputs are protected by 500 Ω series resistors, allowing input signal levels several volts above the positive supply without phase reversal.
- What is the common-mode rejection ratio (CMRR) of the OP747ARZ?
The CMRR is 104 dB to 110 dB for V_CM = 0 V to 4 V.
- What is the large signal voltage gain of the OP747ARZ?
The large signal voltage gain is 300 V/mV to 500 V/mV for RL = 10 kΩ, VO = 0.5 V to 4.5 V.
