Overview
The OPA4188AID is a high-performance, low-noise operational amplifier produced by Texas Instruments. This quad-channel op-amp is designed for precision analog signal processing and features Texas Instruments' proprietary auto-zeroing techniques. This technology ensures low offset voltage and near zero-drift over time and temperature, making the OPA4188AID ideal for applications requiring high precision and stability.
The device is available in a 14-pin SOIC package and operates over a wide supply voltage range of ±2V to ±18V, allowing for versatility in various voltage configurations. Its low input offset voltage, minimal input bias current, and high open-loop gain contribute to its exceptional performance in demanding applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Brand | Texas Instruments | |
| Amplifier Type | Low Noise | |
| Mounting Type | Surface Mount | |
| Package Type | SOIC | |
| Power Supply Type | Dual | |
| Number of Channels per Chip | 4 | |
| Pin Count | 14 | |
| Typical Gain Bandwidth Product | 2 MHz | |
| Typical Dual Supply Voltage | ±2V to ±18V | |
| Typical Slew Rate | 0.8 V/µs | |
| Maximum Operating Frequency | 1 MHz | |
| Minimum Operating Temperature | -40 °C | |
| Maximum Operating Temperature | +125 °C | |
| Rail to Rail Output | Rail to Rail | |
| Typical Voltage Gain | 136 dB | |
| Typical Input Voltage Noise Density | 8.8 nV/√Hz | |
| Length | 5 mm | |
| Height | 1.5 mm | |
| Width | 4 mm |
Key Features
- Ultra-Low Noise: The OPA4188AID features an ultra-low input voltage noise density of 8.8 nV/√Hz, making it suitable for high-precision applications.
- High CMRR: The device boasts a high common-mode rejection ratio (CMRR) of up to 146 dB, ensuring excellent performance in noisy environments.
- Low Crosstalk: It has low crosstalk of -60 dB, which is beneficial for applications requiring minimal signal interference.
- Low Input Offset Voltage: The OPA4188AID has a low input offset voltage of 25 μV (maximum) and a drift of 0.085 μV/°C, ensuring stable operation over a wide temperature range.
- Rail-to-Rail Output: The amplifier offers rail-to-rail output swing within 15 mV of the rails, providing full output range utilization.
- High Open-Loop Gain: With an open-loop gain of 136 dB, the device is stable and accurate in various feedback configurations.
- Wide Supply Voltage Range: It operates from a supply voltage range of ±2V to ±18V, making it versatile for different voltage configurations.
- Phase-Reversal Protection: The device includes internal phase-reversal protection, preventing the output from reversing into the opposite rail when the input is driven beyond its linear common-mode range.
Applications
- Audio Processing: The OPA4188AID is suitable for high-fidelity audio systems due to its low noise and distortion characteristics.
- Medical Instrumentation: Its high precision and stability make it ideal for medical instrumentation applications such as current sensing and precision measurement.
- Industrial Applications: The device is used in industrial settings for applications like bridge amplifiers, strain gauges, test equipment, and transducer applications.
- Temperature Measurement: It is also used in temperature measurement and resistance temperature detectors due to its high accuracy and stability.
- Precision Active Filters: The OPA4188AID is suitable for precision active filters and other applications requiring high bandwidth and low noise).
Q & A
- What is the typical gain bandwidth product of the OPA4188AID?
The typical gain bandwidth product of the OPA4188AID is 2 MHz.
- What is the operating temperature range of the OPA4188AID?
The OPA4188AID operates from -40 °C to +125 °C.
- What is the typical input voltage noise density of the OPA4188AID?
The typical input voltage noise density is 8.8 nV/√Hz.
- Does the OPA4188AID have rail-to-rail output?
- What is the package type of the OPA4188AID?
The OPA4188AID is available in a 14-pin SOIC package.
- What is the typical slew rate of the OPA4188AID?
The typical slew rate is 0.8 V/µs.
- What are some common applications of the OPA4188AID?
The OPA4188AID is commonly used in audio processing, medical instrumentation, industrial applications, temperature measurement, and precision active filters.
- Does the OPA4188AID have phase-reversal protection?
- What is the typical open-loop gain of the OPA4188AID?
The typical open-loop gain is 136 dB.
- What is the maximum quiescent current of the OPA4188AID?
The maximum quiescent current is 475 μA.
