Overview
The OPA365AIDBVTG4, produced by Texas Instruments, is a high-performance operational amplifier that belongs to the OPAx365 family. This device is renowned for its rail-to-rail input and output swing, making it an excellent choice for various applications requiring high linearity and low distortion. The OPA365 features a unique zerø-crossover input topology, which eliminates the input offset transition region common in many rail-to-rail operational amplifiers. This topology ensures excellent common-mode performance over the entire input range, extending 100 mV beyond both power-supply rails. The device is suitable for driving sampling analog-to-digital converters (ADCs), audio, signal conditioning, and sensor amplification due to its high gain bandwidth of 50 MHz and fast slew rate of 25 V/μs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Voltage Supply Range | 2.2 | 5.5 | V | |
| Input Offset Voltage (VOS) | 100 | 200 | μV | |
| Input Offset Voltage Drift (dVOS/dT) | 1 | μV/°C | ||
| Common-Mode Rejection Ratio (CMRR) | 100 | 120 | dB | |
| Input Bias Current (IB) | ±0.2 | ±10 | pA | |
| Input Voltage Noise Density (en) | 4.5 | nV/√Hz | ||
| Gain Bandwidth Product | 50 | MHz | ||
| Slew Rate | 25 | V/μs | ||
| Operating Temperature Range | −40 | 125 | °C | |
| Package Types | SOT-23 (5-pin), SOIC-8 |
Key Features
- Rail-to-Rail Input and Output Swing: The OPA365 features true rail-to-rail input operation and output swing, allowing it to operate within 10 mV of the supply rails.
- Zerø-Crossover Input Topology: Eliminates the input offset transition region, ensuring excellent common-mode performance over the entire input range.
- High Gain Bandwidth and Slew Rate: 50 MHz gain bandwidth and 25 V/μs slew rate make it suitable for high-speed applications.
- Low Noise and Distortion: Low input voltage noise density of 4.5 nV/√Hz and high CMRR of 100 dB to 120 dB.
- Internal ESD Protection: Incorporates internal electrostatic discharge (ESD) protection circuits on all pins.
- Wide Operating Temperature Range: Specified for operation from −40°C to +125°C.
Applications
- Driving Sampling Analog-to-Digital Converters (ADCs): The high gain bandwidth and fast slew rate make it an excellent choice for driving ADCs.
- Audio and Signal Conditioning: Suitable for audio applications and signal conditioning due to its low noise and high linearity.
- Sensor Amplification: Ideal for sensor amplification where high accuracy and low distortion are required.
- Active Filtering: Excellent choice for active filter applications requiring wide bandwidth and low noise.
Q & A
- What is the gain bandwidth of the OPA365?
The gain bandwidth of the OPA365 is 50 MHz.
- What is the slew rate of the OPA365?
The slew rate of the OPA365 is 25 V/μs.
- What are the typical package types for the OPA365?
The OPA365 is available in SOT-23 (5-pin) and SOIC-8 packages.
- What is the common-mode rejection ratio (CMRR) of the OPA365?
The CMRR of the OPA365 is 100 dB to 120 dB.
- What is the input voltage noise density of the OPA365?
The input voltage noise density of the OPA365 is 4.5 nV/√Hz.
- Does the OPA365 have internal ESD protection?
Yes, the OPA365 incorporates internal electrostatic discharge (ESD) protection circuits on all pins.
- What is the operating temperature range of the OPA365?
The operating temperature range of the OPA365 is from −40°C to +125°C.
- Can the OPA365 be used in active filter applications?
Yes, the OPA365 is an excellent choice for active filter applications requiring wide bandwidth and low noise.
- What are some common applications of the OPA365?
The OPA365 is commonly used for driving sampling ADCs, audio, signal conditioning, sensor amplification, and active filtering.
- Does the OPA365 support rail-to-rail input and output swing?
Yes, the OPA365 features true rail-to-rail input and output swing.
