Overview
The OPA228UAG4 is a high-precision, low-noise operational amplifier produced by Texas Instruments. It is part of the OPA228 series, which is optimized for high-speed applications requiring gains of 5 or greater. This amplifier is known for its low noise, wide bandwidth, and high precision, making it an excellent choice for various applications that demand both AC and precision DC performance.
The OPA228UAG4 is available in an 8-SOIC package and operates over a wide supply range from ±2.5V to ±18V. It is unity-gain stable and features a high slew rate and bandwidth, making it suitable for professional audio equipment, data acquisition, and other precision applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | - |
| Series | OPA228 | - |
| Amplifier Type | General Purpose | - |
| Number of Circuits | 1 | - |
| Slew Rate | 11 V/µs | V/µs |
| Gain Bandwidth Product | 33 MHz | MHz |
| Input Bias Current | 2.5 nA | nA |
| Input Offset Voltage | 10 µV | µV |
| Supply Current | 3.7 mA | mA |
| Output Current per Channel | 45 mA | mA |
| Supply Voltage Range | ±2.5 V to ±18 V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Mounting Type | Surface Mount | - |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - |
Key Features
- Low Noise: 3 nV/√Hz, making it suitable for high-precision applications.
- Wide Bandwidth: 33 MHz, optimized for high-speed applications.
- High Slew Rate: 11 V/µs, ensuring fast response times.
- High CMRR: 138 dB, providing excellent common-mode rejection.
- High Open-Loop Gain: 160 dB, ensuring high precision in amplification.
- Low Input Bias Current: 10 nA maximum, reducing errors in high-impedance circuits.
- Low Offset Voltage: 75 µV maximum, enhancing DC precision.
- Wide Supply Range: ±2.5 V to ±18 V, offering flexibility in power supply configurations.
- Settling Time: 5 µs, ensuring quick stabilization of output signals.
- Single, Dual, and Quad Versions: Available for different application needs and space savings.
Applications
- Data Acquisition (DAQ): Ideal for precision data acquisition systems.
- Condition Monitoring Sensors: Suitable for monitoring sensors in various industrial applications.
- Spectrum Analyzers: Used in spectral analysis due to its high precision and low noise.
- Professional Audio Equipment: Excellent choice for rack-mounted professional audio amplifiers.
- Industrial AC-DC Power Supplies: Used in power supply control and monitoring.
- Telecom Equipment: Suitable for telecommunications equipment requiring high precision and low noise.
- Geophysical and Vibration Analysis: Used in geophysical and vibration analysis applications.
- Active Filters: Ideal for active filter circuits requiring high precision and low noise.
Q & A
- What is the slew rate of the OPA228UAG4?
The slew rate of the OPA228UAG4 is 11 V/µs.
- What is the gain bandwidth product of the OPA228UAG4?
The gain bandwidth product of the OPA228UAG4 is 33 MHz.
- What is the input offset voltage of the OPA228UAG4?
The input offset voltage of the OPA228UAG4 is 10 µV.
- What is the operating temperature range of the OPA228UAG4?
The operating temperature range of the OPA228UAG4 is -40°C to 85°C.
- What package type is the OPA228UAG4 available in?
The OPA228UAG4 is available in an 8-SOIC package.
- What are the typical applications of the OPA228UAG4?
The OPA228UAG4 is typically used in data acquisition, condition monitoring sensors, spectrum analyzers, professional audio equipment, and industrial AC-DC power supplies.
- What is the supply voltage range for the OPA228UAG4?
The supply voltage range for the OPA228UAG4 is ±2.5 V to ±18 V.
- What is the settling time of the OPA228UAG4?
The settling time of the OPA228UAG4 is 5 µs.
- Is the OPA228UAG4 suitable for high-precision applications?
Yes, the OPA228UAG4 is highly suitable for high-precision applications due to its low noise, high CMRR, and low offset voltage.
- Are there dual and quad versions of the OPA228UAG4 available?
Yes, the OPA228 series includes dual and quad versions for space savings and per-channel cost reduction.
