Overview
The ADA4177-1ARMZ from Analog Devices Inc. is a precision, low noise, and low bias current operational amplifier. This single-channel op-amp is part of the ADA4177 family, which includes dual-channel (ADA4177-2) and quad-channel (ADA4177-4) versions. The ADA4177-1 is known for its high precision, robust input protection, and low power consumption, making it suitable for a variety of applications requiring high accuracy and reliability.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | 2 | 60 | 120 | µV |
| Offset Voltage Drift | ΔVOS/ΔT | 1 | µV/°C | ||
| Input Bias Current | IB | -1 | -0.3 | 1 | nA |
| Supply Current per Amplifier | ISY | 500 | 560 | 600 | µA |
| Slew Rate | SR | 1.5 | V/µs | ||
| Settling Time to 0.1% | tS | 1.8 | µs | ||
| Gain Bandwidth Product | GBP | 3.5 | MHz | ||
| Unity-Gain Crossover | UGC | 3.5 | MHz | ||
| Power Supply Rejection Ratio | PSRR | 120 | 145 | dB | |
| Output Current | IOUT | 25 | mA |
Key Features
- Low offset voltage: 2 µV typical and 60 µV maximum at 25°C.
- Low offset voltage drift: 1 µV/°C maximum.
- Low input bias current: -1 nA to 1 nA.
- Low noise and low current consumption: 500 µA typical per amplifier.
- Robust input protection against signal excursions up to 32 V beyond either supply and 70 dB of rejection for electromagnetic interference (EMI) at 1000 MHz.
- Stable with capacitive loads of more than 1000 pF without external compensation.
- Dual-supply operation and unity-gain stable with no phase reversal.
Applications
The ADA4177-1 is suitable for various applications requiring high precision and low noise, such as:
- Sensor signal conditioning.
- Medical devices.
- Industrial control systems.
- Aerospace and defense systems.
- High-precision measurement instruments.
Q & A
- What is the typical offset voltage of the ADA4177-1?
The typical offset voltage is 2 µV. - What is the maximum offset voltage drift of the ADA4177-1?
The maximum offset voltage drift is 1 µV/°C. - What is the typical supply current per amplifier for the ADA4177-1?
The typical supply current per amplifier is 500 µA. - Is the ADA4177-1 stable with capacitive loads?
Yes, it is stable with capacitive loads of more than 1000 pF without external compensation. - What is the slew rate of the ADA4177-1?
The slew rate is 1.5 V/µs. - What is the gain bandwidth product of the ADA4177-1?
The gain bandwidth product is 3.5 MHz. - Does the ADA4177-1 have input protection?
Yes, it has robust input protection against signal excursions up to 32 V beyond either supply and 70 dB of rejection for EMI at 1000 MHz. - What are the operating temperature ranges for the ADA4177-1?
The operating temperature range is -40°C to +125°C. - What is the maximum output current of the ADA4177-1?
The maximum output current is 25 mA. - Is the ADA4177-1 suitable for medical devices?
Yes, it is suitable for medical devices due to its high precision and low noise characteristics.
