Overview
The OP1177ARMZ from Analog Devices Inc. is a high-precision, single-channel operational amplifier that belongs to the OPx177 family. This amplifier is known for its extremely low offset voltage and drift, low input bias current, and low noise characteristics. It is designed to operate in a wide range of temperatures from −40°C to +125°C, making it suitable for demanding operating environments. The OP1177ARMZ is available in an 8-lead MSOP package and is particularly useful in applications requiring high precision and low noise.
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 | - | -13.5 | - | 13.5 | 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 | - | - | 14.1 | V |
| Output Voltage Low | VOL | -14.1 | - | - | V |
| Output Current | IOUT | - | - | 10 | mA |
| Supply Current per Amplifier | ISY | 400 | - | 500 | μA |
| Supply Voltage Range | - | ±2.5 | - | ±15 | V |
| Slew Rate | - | - | 0.7 | V/μs | |
| Gain Bandwidth Product | - | - | 1.3 | MHz |
Key Features
- Very low offset voltage: 15 μV maximum
- Low offset voltage drift: 0.7 μV/°C maximum
- Low input bias current: 2 nA maximum
- Low noise: 8 nV/√Hz typical
- High CMRR, PSRR, and AVO: > 120 dB minimum
- Low supply current: 400 μA per amplifier
- Dual supply operation: ±2.5 V to ±15 V
- Unity-gain stable with no phase reversal
- Inputs internally protected beyond supply voltage
- Wide temperature range: −40°C to +125°C
- Available in MSOP and SOIC packages
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
- Precision diode power measurement
- Voltage and current level setting
Q & A
- What is the typical offset voltage of the OP1177ARMZ?
The typical offset voltage of the OP1177ARMZ is 15 μV.
- What is the input bias current of the OP1177ARMZ?
The input bias current of the OP1177ARMZ is 2 nA maximum.
- What is the common-mode rejection ratio (CMRR) of the OP1177ARMZ?
The CMRR of the OP1177ARMZ is greater than 120 dB.
- What is the supply voltage range for the OP1177ARMZ?
The supply voltage range for the OP1177ARMZ is ±2.5 V to ±15 V.
- What is the slew rate of the OP1177ARMZ?
The slew rate of the OP1177ARMZ is 0.7 V/μs.
- What is the gain bandwidth product of the OP1177ARMZ?
The gain bandwidth product of the OP1177ARMZ is 1.3 MHz.
- In what temperature range can the OP1177ARMZ operate?
The OP1177ARMZ can operate in a temperature range from −40°C to +125°C.
- What are the available package types for the OP1177ARMZ?
The OP1177ARMZ is available in MSOP and SOIC packages.
- What are some common applications of the OP1177ARMZ?
Common applications include wireless base station control circuits, optical network control circuits, instrumentation, sensors and controls, thermocouples, RTDs, strain bridges, and precision filters.
- Is the OP1177ARMZ RoHS compliant?
