Overview
The OP1177AR is a high-precision, low-noise operational amplifier from Analog Devices Inc., representing the fourth generation of the industry-standard OP07 amplifier family. It is known for its extremely low offset voltage, low input bias current, and wide operating temperature range. The OP1177AR is available in an 8-lead SOIC package and is suitable for a variety of precision applications due to its superior performance characteristics.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | 15 | 60 | μV | |
| Input Bias Current | IB | -2 | 0.5 | 2 | nA |
| Input Offset Current | IOS | -1 | 0.2 | 1 | nA |
| Input Voltage Range | -3.5 | 3.5 | V | ||
| Common-Mode Rejection Ratio | CMRR | 120 | 126 | dB | |
| Large Signal Voltage Gain | AVO | 1000 | 2000 | V/mV | |
| Offset Voltage Drift | ΔVOS/ΔT | 0.2 | 0.7 | μV/°C | |
| Output Voltage High | VOH | +4 | +4.1 | V | |
| Output Voltage Low | VOL | -4.1 | -4 | V | |
| Output Current | IOUT | ±10 | mA | ||
| Power Supply Rejection Ratio | PSRR | 120 | 130 | dB | |
| Supply Current per Amplifier | ISY | 400 | 500 | μA |
Key Features
- Very low offset voltage: 15 μV to 60 μV maximum.
- Low input bias current: 2 nA maximum.
- Low noise: 8 nV/√Hz typical.
- High common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR): > 120 dB.
- Wide operating temperature range: -40°C to +125°C.
- Dual supply operation: ±2.5 V to ±15 V.
- Unity-gain stable with no phase reversal.
- Internally protected inputs beyond supply voltage.
Applications
- Wireless base station control circuits.
- Optical network control circuits.
- Instrumentation.
- Sensors and controls.
- Thermocouples.
- Resistor thermal detectors (RTDs).
- Strain bridges.
- Shunt current measurements.
- Precision filters.
Q & A
- What is the typical offset voltage of the OP1177AR? The typical offset voltage is 60 μV.
- What is the input bias current of the OP1177AR? The input bias current is 2 nA maximum.
- What is the common-mode rejection ratio (CMRR) of the OP1177AR? The CMRR is greater than 120 dB.
- What is the operating temperature range of the OP1177AR? The operating temperature range is -40°C to +125°C.
- What are the supply voltage ranges for the OP1177AR? The OP1177AR operates with dual supplies from ±2.5 V to ±15 V.
- Is the OP1177AR unity-gain stable? Yes, the OP1177AR is unity-gain stable.
- What are some common applications of the OP1177AR? Common applications include wireless base station control circuits, optical network control circuits, instrumentation, and sensors and controls.
- What package types are available for the OP1177AR? The OP1177AR is available in 8-lead SOIC and MSOP packages.
- What is the slew rate of the OP1177AR? The slew rate is 0.7 V/μs.
- What is the gain bandwidth product of the OP1177AR? The gain bandwidth product is 1.3 MHz.
