Overview
The OPA2350UA/2K5G4 is a dual, single-supply, rail-to-rail, high-speed, low-noise operational amplifier produced by Texas Instruments. It is part of the OPA350 series, which is optimized for low voltage, single-supply operation. This amplifier is designed to offer high performance in various applications, including driving sampling Analog-to-Digital (A/D) converters, cell phone PA control loops, video processing, and general-purpose audio applications.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | -40 | 85 | °C | |
| Operating Voltage Range | 2.7 | 5.5 | V | |
| Input Offset Voltage (VOS) | ±150 | ±500 | ±1 mV (over temp) | µV |
| Bandwidth | 38 | MHz | ||
| Slew Rate | 22 | V/µs | ||
| Noise (e_n) | 5 | nV/√Hz | ||
| THD+Noise | 0.0006% | % | ||
| Output Voltage Swing (RL=10kΩ) | 10 mV from rail | mV | ||
| Output Current (IOUT) | ±40 | mA | ||
| Package | SOIC (D) - 8 pins |
Key Features
- Rail-to-Rail Input and Output: The amplifier features rail-to-rail input and output, allowing the input common-mode voltage range to extend 300 mV below ground and 300 mV above the positive supply, and the output voltage swing to be within 10 mV of the supply rails with a 10-kΩ load.
- High Speed Operation: With a bandwidth of 38 MHz and a slew rate of 22 V/µs, this amplifier is suitable for high-speed applications.
- Low Noise: The amplifier has a low noise level of 5 nV/√Hz, making it ideal for sensitive applications.
- Low THD+Noise: The total harmonic distortion plus noise is as low as 0.0006%, ensuring high fidelity in audio and other applications.
- Unity-Gain Stable: The amplifier is stable at unity gain, which is beneficial for a wide range of applications.
- MicroSize Packages: Available in miniature packages such as MSOP-8, SO-8, and DIP-8, which are convenient for space-constrained designs.
- Single, Dual, and Quad Versions: The OPA350 series includes single, dual, and quad versions with identical specifications, providing maximum design flexibility.
Applications
- Driving Sampling Analog-to-Digital (A/D) Converters: The high speed and low noise of the OPA2350 make it ideal for driving A/D converters.
- Cell Phone PA Control Loops: Suitable for control loops in cell phone power amplifiers due to its high speed and low noise characteristics.
- Video Processing: Capable of driving 75-Ω loads, making it suitable for video processing applications.
- Audio Applications: The low THD+Noise and high fidelity make it suitable for various audio applications.
- General Purpose Applications: Its versatility and performance make it a good choice for general-purpose amplification needs.
Q & A
- What is the operating temperature range of the OPA2350UA/2K5G4?
The operating temperature range is from -40°C to 85°C.
- What is the minimum operating voltage for the OPA2350UA/2K5G4?
The minimum operating voltage is 2.7 V.
- What is the bandwidth of the OPA2350UA/2K5G4?
The bandwidth is 38 MHz.
- What is the slew rate of the OPA2350UA/2K5G4?
The slew rate is 22 V/µs.
- What is the noise level of the OPA2350UA/2K5G4?
The noise level is 5 nV/√Hz.
- Is the OPA2350UA/2K5G4 unity-gain stable?
Yes, the OPA2350UA/2K5G4 is unity-gain stable.
- What types of packages are available for the OPA2350UA/2K5G4?
The OPA2350UA/2K5G4 is available in SOIC (D) - 8 pins, MSOP-8, and DIP-8 packages.
- What are some common applications for the OPA2350UA/2K5G4?
Common applications include driving sampling A/D converters, cell phone PA control loops, video processing, audio applications, and general-purpose amplification.
- Does the OPA2350UA/2K5G4 have independent circuitry for dual and quad versions?
Yes, the dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction.
- What is the output voltage swing of the OPA2350UA/2K5G4 with a 10-kΩ load?
The output voltage swing is within 10 mV of the supply rails with a 10-kΩ load.
