Overview
The ADA4077-1ARMZ-R7 is a high-precision, single-channel operational amplifier produced by Analog Devices Inc. This device is part of the ADA4077 family, known for its extremely low offset voltage and drift, low input bias current, noise, and power consumption. It is designed to operate over a wide temperature range of -40°C to +125°C, making it suitable for various demanding applications. The amplifier is stable with capacitive loads of more than 1000 pF without requiring external compensation, which enhances its versatility in different circuit designs.
Key Specifications
| Parameter | Value |
|---|---|
| Input Offset Voltage (Vos) | 25 µV maximum at 25°C (B grade), 50 µV maximum at 25°C (A grade) |
| Input Offset Voltage Drift | 0.25 µV/°C maximum |
| Input Bias Current | 1 nA |
| Common Mode Rejection Ratio (CMRR) | 132 dB |
| Gain Bandwidth Product | 3.6 MHz |
| Operating Temperature Range | -40°C to +125°C |
| Package Type | 8-Lead MSOP |
| Power Consumption | Reduced by a factor of four compared to the OP177 |
Key Features
- Extremely low offset voltage and drift, and low input bias current, noise, and power consumption.
- Outputs are stable with capacitive loads of more than 1000 pF without external compensation.
- Wide operating temperature range of -40°C to +125°C with an MSL1 rating.
- Low wideband noise and high bandwidth, with a gain bandwidth product of 3.6 MHz.
- Complete freedom from phase inversion.
- Internal protection from overvoltage conditions referenced to either supply rail.
Applications
- Sensor signal conditioning (thermocouples, resistance temperature detectors (RTDs), strain gages).
- Process control front-end amplifiers.
- Precision diode power measurement in optical and wireless transmission systems.
- Line-powered and portable instrumentation.
- Precision filters, voltage or current measurement, and level setting.
- Optical network control circuits and instrumentation.
- Precision sensors and controls.
Q & A
- What is the input offset voltage of the ADA4077-1ARMZ-R7?
The input offset voltage is 25 µV maximum at 25°C for the B grade and 50 µV maximum for the A grade.
- What is the input bias current of this amplifier?
The input bias current is 1 nA.
- What is the common mode rejection ratio (CMRR) of the ADA4077-1ARMZ-R7?
The CMRR is 132 dB.
- What is the gain bandwidth product of this amplifier?
The gain bandwidth product is 3.6 MHz.
- What is the operating temperature range of the ADA4077-1ARMZ-R7?
The operating temperature range is -40°C to +125°C.
- Does the ADA4077-1ARMZ-R7 require external compensation for capacitive loads?
No, the outputs are stable with capacitive loads of more than 1000 pF without external compensation.
- What are some common applications of the ADA4077-1ARMZ-R7?
Common applications include sensor signal conditioning, process control front-end amplifiers, precision diode power measurement, and precision filters.
- How does the ADA4077-1ARMZ-R7 compare to other operational amplifiers in terms of power consumption?
The power consumption is reduced by a factor of four compared to the OP177.
- Is the ADA4077-1ARMZ-R7 protected against overvoltage conditions?
- What is the significance of the MSL1 rating for the ADA4077-1ARMZ-R7?
The MSL1 rating indicates that the device is compliant with the most stringent of assembly processes and is suitable for use in environments with rising internal system temperatures.
