Overview
The ADA4077-4ARZ-R7, produced by Analog Devices Inc., is a high-precision, low-noise operational amplifier. It is part of the sixth generation of the industry-standard OP07 amplifier family. This quad amplifier features extremely low offset voltage and drift, low input bias current, noise, and power consumption. The ADA4077-4 is designed for use in various applications, including line-powered and portable instrumentation, precision filters, voltage or current measurement, and level setting. It operates over an extended industrial temperature range from -40°C to +125°C and has an MSL1 rating, making it suitable for stringent assembly processes.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | T_A = 25°C | 25 μV | μV | ||
| Input Bias Current | I_B | T_A = 25°C | 1 nA | nA | ||
| Wideband Noise | e_n | f = 1 kHz | 7 | nV/√Hz | ||
| Bandwidth | f_BW | AV = +1 | 4 MHz | MHz | ||
| Slew Rate | S_R | V/μs | 2.5 | V/μs | ||
| Power Supply Rejection Ratio | PSRR | VS = ±2.5 V to ±18 V | 120 | 123 | 128 | dB |
| Output Voltage High | VOH | IL = 1 mA, -40°C < TA < +125°C | 13.7 | 13.8 | V | |
| Output Voltage Low | VOL | IL = 1 mA, -40°C < TA < +125°C | -13.7 | -13.8 | V | |
| Output Current | IOUT | VDROPOUT < 1.2 V | ±10 mA | mA |
Key Features
- Extremely low offset voltage and drift, with a maximum offset voltage of 25 μV at 25°C.
- Low input bias current and noise, making it suitable for high-precision applications.
- Wide bandwidth of 4 MHz and a high slew rate of 2.5 V/μs.
- Stable operation with capacitive loads of more than 1000 pF without external compensation.
- Low power consumption, reduced by a factor of four compared to the OP177.
- Operating temperature range from -40°C to +125°C with an MSL1 rating.
- Available in 14-lead TSSOP and 14-lead SOIC packages.
Applications
- Process control front-end amplifiers.
- Optical network control circuits.
- Instrumentation, including precision sensors and controls.
- Precision filters.
- Voltage or current measurement and level setting.
- Line-powered and portable instrumentation.
- Sensor signal conditioning (e.g., thermocouples, RTDs, strain gages).
- Precision diode power measurement in optical and wireless transmission systems.
Q & A
- What is the maximum offset voltage of the ADA4077-4 at 25°C?
The maximum offset voltage is 25 μV at 25°C.
- What is the typical wideband noise of the ADA4077-4?
The typical wideband noise is 7 nV/√Hz at 1 kHz.
- What is the bandwidth of the ADA4077-4?
The bandwidth is 4 MHz at a gain of +1.
- What is the slew rate of the ADA4077-4?
The slew rate is 2.5 V/μs.
- What is the operating temperature range of the ADA4077-4?
The operating temperature range is from -40°C to +125°C.
- What is the power supply rejection ratio (PSRR) of the ADA4077-4?
The PSRR is 120 dB to 128 dB for supply voltages from ±2.5 V to ±18 V.
- Can the ADA4077-4 handle capacitive loads without external compensation?
- What are the typical applications of the ADA4077-4?
- What packages are available for the ADA4077-4?
- Why is the MSL1 rating important for the ADA4077-4?
