Overview
The OP1177ARM-REEL, part of the OPx177 series from Analog Devices Inc., is a high-precision, low-noise operational amplifier. This fourth-generation amplifier builds upon the industry-standard OP07 family, offering significant improvements in performance and packaging. The OP1177 is available in a compact 8-lead MSOP package, making it suitable for applications where space is limited. It features extremely low offset voltage, low input bias current, and low noise, making it ideal for precision applications. The amplifier is fully specified for operation over a wide temperature range of −40°C to +125°C, ensuring reliable performance in demanding environments.
Key Specifications
| Parameter | Symbol | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | 15 | 60 | μV | ||
| Offset Voltage Drift | ΔVOS/ΔT | −40°C < TA < +125°C | 0.2 | 0.7 | μV/°C | |
| Input Bias Current | IB | −40°C < TA < +125°C | −2 | 0.5 | 2 | nA |
| Input Offset Current | IOS | −40°C < TA < +125°C | −1 | 0.2 | 1 | nA |
| Input Voltage Range | −13.5 | +13.5 | V | |||
| Common-Mode Rejection Ratio | CMRR | VCM = −13.5 V to +13.5 V | 120 | 125 | dB | |
| Power Supply Rejection Ratio | PSRR | VS = ±2.5 V to ±15 V | 115 | 125 | dB | |
| Supply Current per Amplifier | ISY | VO = 0 V | 400 | 500 | μA | |
| Slew Rate | SR | RL = 2 kΩ | 0.7 | V/μs | ||
| Gain Bandwidth Product | GBP | 1.3 | MHz | |||
| Voltage Noise Density | en | f = 1 kHz | 7.9 | 8.5 | nV/√Hz |
Key Features
- Low Offset Voltage and Drift: The OP1177 features a maximum offset voltage of 60 μV and a drift of 0.7 μV/°C, ensuring high precision over a wide temperature range.
- Low Input Bias Current: With a maximum input bias current of 2 nA, this amplifier is suitable for applications requiring minimal current draw.
- Low Noise: The amplifier has a typical voltage noise density of 7.9 nV/√Hz at 1 kHz, making it ideal for low-noise applications.
- High CMRR and PSRR: Common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) are both greater than 120 dB, ensuring robust performance against common-mode and power supply noise.
- Wide Operating Temperature Range: Fully specified for operation from −40°C to +125°C, making it suitable for demanding environments.
- Compact Packaging: Available in 8-lead MSOP and SOIC packages, which are also available in tape and reel for automated assembly.
- Low Power Consumption: With a supply current per amplifier of 400 μA to 500 μA, it offers low power dissipation.
Applications
- Wireless Base Station Control Circuits: Suitable for precision control in wireless base stations.
- Optical Network Control Circuits: Used in optical network control due to its high precision and low noise characteristics.
- Instrumentation and Sensors: Ideal for instrumentation and sensor applications requiring high accuracy and stability.
- Thermocouples and RTDs: Used in thermocouple and resistor thermal detector (RTD) applications due to its low offset voltage and drift.
- Strain Bridges and Shunt Current Measurements: Suitable for strain bridge and shunt current measurement applications requiring high precision.
- Precision Filters: Used in precision filter circuits where low noise and high accuracy are critical.
Q & A
- What is the maximum offset voltage of the OP1177?
The maximum offset voltage of the OP1177 is 60 μV.
- What is the input bias current of the OP1177?
The input bias current of the OP1177 is a maximum of 2 nA.
- What is the typical voltage noise density of the OP1177?
The typical voltage noise density of the OP1177 is 7.9 nV/√Hz at 1 kHz.
- What is the common-mode rejection ratio (CMRR) of the OP1177?
The CMRR of the OP1177 is greater than 120 dB.
- What is the operating temperature range of the OP1177?
The OP1177 is fully specified for operation from −40°C to +125°C.
- What are the available package types for the OP1177?
The OP1177 is available in 8-lead MSOP and SOIC packages, with MSOP and TSSOP available in tape and reel.
- What is the supply current per amplifier for the OP1177?
The supply current per amplifier for the OP1177 is 400 μA to 500 μA.
- What is the slew rate of the OP1177?
The slew rate of the OP1177 is 0.7 V/μs.
- What is the gain bandwidth product (GBP) of the OP1177?
The GBP of the OP1177 is 1.3 MHz.
- What are some typical applications of the OP1177?
The OP1177 is used in wireless base station control circuits, optical network control circuits, instrumentation, sensors, thermocouples, RTDs, strain bridges, shunt current measurements, and precision filters.
