Overview
The OP2177ARZ is a high-precision, dual operational amplifier from Analog Devices Inc. It is part of the OPx177 family, known for its extremely low offset voltage and drift, low input bias current, and low noise characteristics. This amplifier is designed for demanding applications requiring high precision and stability over a wide temperature range.
The OP2177ARZ is available in an 8-lead narrow SOIC package and is fully specified for operation from −40°C to +125°C, making it suitable for a variety of challenging operating environments.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Offset Voltage | 15 μV (typical) | - |
| Offset Voltage Drift | 0.2 μV/°C (typical) | -40°C < TA < +125°C |
| Input Bias Current | 2 nA (maximum) | -40°C < TA < +125°C |
| Voltage Noise | 0.4 μV p-p (typical) at 0.1 Hz to 10 Hz | - |
| Voltage Noise Density | 7.9 nV/√Hz (typical) at f = 1 kHz | - |
| Current Noise Density | 0.2 pA/√Hz (typical) at f = 1 kHz | - |
| Common-Mode Rejection Ratio (CMRR) | 120 dB (minimum) at VS = ±5V, VCM = 0V, TA = 25°C | - |
| Power Supply Rejection Ratio (PSRR) | 118 dB (minimum) at VS = ±2.5V to ±15V | -40°C < TA < +125°C |
| Supply Current per Amplifier | 400 μA (typical) at VO = 0V, VS = ±5V, VCM = 0V, TA = 25°C | - |
| Operating Temperature Range | -40°C to +125°C | - |
| Package Style | 8-lead narrow SOIC | - |
| Slew Rate | 0.7 V/μs | RL = 2 kΩ |
| Gain Bandwidth Product (GBP) | 1.3 MHz | - |
Key Features
- Extremely low offset voltage and drift, ensuring high precision over a wide temperature range.
- Low input bias current and low noise characteristics, making it suitable for sensitive applications.
- Internal 500 ohm series resistors protect the inputs, allowing input signal levels several volts beyond either supply without phase reversal.
- Stable operation with capacitive loads of over 1000 pF without external compensation.
- Dual supply operation from ±2.5V to ±15V, with high CMRR and PSRR.
- Low power consumption with a supply current per amplifier of less than 500 μA at 30V.
- Wide operating temperature range from −40°C to +125°C.
Applications
- Wireless base station control circuits.
- Optical network control circuits.
- Instrumentation and sensors.
- Thermocouples and resistor thermal detectors (RTDs).
- Strain bridges and shunt current measurements.
- Precision filters and other high-precision analog circuits.
Q & A
- What is the typical offset voltage of the OP2177ARZ?
The typical offset voltage is 15 μV.
- What is the offset voltage drift of the OP2177ARZ?
The offset voltage drift is 0.2 μV/°C (typical) over the temperature range of −40°C to +125°C.
- What is the input bias current of the OP2177ARZ?
The input bias current is 2 nA (maximum) over the temperature range of −40°C to +125°C.
- What is the voltage noise of the OP2177ARZ?
The voltage noise is 0.4 μV p-p (typical) at 0.1 Hz to 10 Hz.
- What is the common-mode rejection ratio (CMRR) of the OP2177ARZ?
The CMRR is 120 dB (minimum) at VS = ±5V, VCM = 0V, and TA = 25°C.
- What is the power supply rejection ratio (PSRR) of the OP2177ARZ?
The PSRR is 118 dB (minimum) over the supply voltage range of ±2.5V to ±15V and temperature range of −40°C to +125°C.
- What is the supply current per amplifier of the OP2177ARZ?
The supply current per amplifier is 400 μA (typical) at VO = 0V, VS = ±5V, VCM = 0V, and TA = 25°C.
- What is the operating temperature range of the OP2177ARZ?
The operating temperature range is −40°C to +125°C.
- In what package is the OP2177ARZ available?
The OP2177ARZ is available in an 8-lead narrow SOIC package.
- What are some typical applications of the OP2177ARZ?
Typical applications include wireless base station control circuits, optical network control circuits, instrumentation, sensors, thermocouples, RTDs, strain bridges, and precision filters.
