Overview
The OPA2365AIDG4, part of the OPAx365 series from Texas Instruments, is a high-performance, dual-channel operational amplifier designed for low-voltage, single-supply applications. This CMOS op-amp features a zerø-crossover distortion topology, ensuring excellent linearity and minimal distortion. It is particularly suited for driving sampling analog-to-digital converters (ADCs) due to its rail-to-rail input and output, low noise, and high-speed operation. The device operates over a supply voltage range of 2.2 V to 5.5 V and is available in an 8-pin SOIC package, making it versatile for various applications including audio, signal conditioning, and sensor amplification.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Bandwidth | 50 | MHz |
| Total Harmonic Distortion + Noise (THD+N) | 0.0004% | |
| Common-Mode Rejection Ratio (CMRR) | 100 | dB |
| Input Voltage Noise | 4.5 | nV/√Hz at 100 kHz |
| Slew Rate | 25 | V/µs |
| Settling Time to 0.01% | 0.3 | µs |
| Input Offset Voltage | 100 | µV |
| Input Bias Current | 0.2 | pA |
| Supply Voltage Range | 2.2 to 5.5 | V |
| Operating Temperature Range | −40 to +125 | °C |
| Package Type | SOIC-8 |
Key Features
- Rail-to-rail input and output swing, allowing the input common-mode range to extend 100 mV beyond both power-supply rails.
- Zerø-crossover distortion topology, eliminating the input offset transition region and providing excellent common-mode performance.
- Low noise: 4.5 nV/√Hz at 100 kHz.
- High slew rate: 25 V/µs.
- Fast settling time: 0.3 µs to 0.01%.
- Low input offset voltage: 100 µV.
- Low input bias current: 0.2 pA.
- Internal electrostatic discharge (ESD) protection circuits on all pins.
- Suitable for driving capacitive loads and active filter applications.
Applications
- Signal conditioning and sensor amplification.
- Data acquisition and process control.
- Active filters and test equipment.
- Audio and wideband amplifiers.
- Driving sampling analog-to-digital converters (ADCs).
- Cell phone power amplifier control loops.
Q & A
- What is the gain bandwidth of the OPA2365AIDG4?
The gain bandwidth of the OPA2365AIDG4 is 50 MHz.
- What is the total harmonic distortion + noise (THD+N) of the OPA2365AIDG4?
The THD+N of the OPA2365AIDG4 is 0.0004%.
- What is the common-mode rejection ratio (CMRR) of the OPA2365AIDG4?
The CMRR of the OPA2365AIDG4 is 100 dB.
- What is the input voltage noise of the OPA2365AIDG4?
The input voltage noise of the OPA2365AIDG4 is 4.5 nV/√Hz at 100 kHz.
- What is the slew rate of the OPA2365AIDG4?
The slew rate of the OPA2365AIDG4 is 25 V/µs.
- What is the settling time to 0.01% for the OPA2365AIDG4?
The settling time to 0.01% for the OPA2365AIDG4 is 0.3 µs.
- What is the input offset voltage of the OPA2365AIDG4?
The input offset voltage of the OPA2365AIDG4 is 100 µV.
- What is the input bias current of the OPA2365AIDG4?
The input bias current of the OPA2365AIDG4 is 0.2 pA.
- What is the supply voltage range for the OPA2365AIDG4?
The supply voltage range for the OPA2365AIDG4 is 2.2 V to 5.5 V.
- What are some common applications of the OPA2365AIDG4?
The OPA2365AIDG4 is commonly used in signal conditioning, data acquisition, active filters, test equipment, audio amplifiers, and driving sampling ADCs.
