Overview
The OPA4350EA/2K5, part of the OPA350 series, is a high-speed, single-supply, rail-to-rail operational amplifier produced by Texas Instruments. These CMOS operational amplifiers are optimized for low voltage, single-supply operation, making them ideal for a variety of applications requiring high performance and low power consumption.
The OPA4350EA/2K5 is particularly suited for driving sampling Analog-to-Digital (A/D) converters, cell phone PA control loops, video processing, and general-purpose audio applications. The rail-to-rail input and output, combined with low noise (5 nV/√Hz) and high speed operation (38 MHz, 22 V/μs), enhance the dynamic range and performance in low voltage supply scenarios.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.5 | - | 5.5 | V |
| Operating Temperature Range | -40 | - | 85 | °C |
| Input Offset Voltage | ±150 | - | ±500 | μV |
| Input Bias Current | ±0.5 | - | ±10 | pA |
| Input Voltage Noise Density | - | 5 | - | nV/√Hz |
| Slew Rate | - | 22 | - | V/μs |
| Bandwidth | - | 38 | - | MHz |
| Output Voltage Swing | - | - | Within 10 mV of supply rails | - |
| Quiescent Current (per amplifier) | 8.5 | - | - | mA |
Key Features
- Rail-to-Rail Input and Output: The OPA4350EA/2K5 features rail-to-rail input and output, allowing for operation within 10 mV of the supply rails.
- Low Noise: With an input voltage noise density of 5 nV/√Hz, this amplifier is suitable for applications requiring low noise performance.
- High Speed Operation: The amplifier offers a high slew rate of 22 V/μs and a bandwidth of 38 MHz, making it ideal for high-speed applications.
- Single, Dual, and Quad Versions: Available in single (OPA350), dual (OPA2350), and quad (OPA4350) configurations, providing flexibility in design.
- Low Power Consumption: The amplifier operates with a quiescent current of 8.5 mA per amplifier, making it energy-efficient.
- Wide Operating Temperature Range: Specified from -40°C to 85°C, with an operating range from -55°C to 150°C.
- Compact Packaging: Available in MSOP-8, SO-8, PDIP-8, SSOP-16, and SO-14 packages, suitable for space-constrained designs.
Applications
- Driving A/D Converters: Ideal for driving sampling Analog-to-Digital (A/D) converters due to its high speed and low noise characteristics.
- Cell Phone PA Control Loops: Suitable for cell phone power amplifier control loops.
- Video Processing: Used in video processing applications requiring high speed and low noise.
- Audio Processing: Applicable in audio processing and general-purpose audio applications.
- Data Acquisition and Process Controls: Useful in data acquisition systems and process control applications.
- Communications and Active Filters: Can be used in communication systems and active filter designs.
- Test Equipment: Suitable for various test equipment applications.
Q & A
- What is the operating voltage range of the OPA4350EA/2K5?
The OPA4350EA/2K5 operates from a supply voltage range of 2.5 V to 5.5 V.
- What is the slew rate of the OPA4350EA/2K5?
The slew rate of the OPA4350EA/2K5 is 22 V/μs.
- What is the bandwidth of the OPA4350EA/2K5?
The bandwidth of the OPA4350EA/2K5 is 38 MHz.
- What is the input voltage noise density of the OPA4350EA/2K5?
The input voltage noise density is 5 nV/√Hz.
- What are the available package options for the OPA4350EA/2K5?
The OPA4350EA/2K5 is available in SSOP-16 and SO-14 packages.
- What is the quiescent current per amplifier for the OPA4350EA/2K5?
The quiescent current per amplifier is 8.5 mA.
- What is the operating temperature range of the OPA4350EA/2K5?
The specified operating temperature range is from -40°C to 85°C.
- Is the OPA4350EA/2K5 suitable for driving A/D converters?
Yes, it is ideal for driving sampling Analog-to-Digital (A/D) converters due to its high speed and low noise characteristics.
- Can the OPA4350EA/2K5 be used in audio processing applications?
Yes, it is suitable for general-purpose audio applications.
- What are some common applications of the OPA4350EA/2K5 besides A/D converters and audio processing?
Besides A/D converters and audio processing, it is used in cell phone PA control loops, video processing, data acquisition, process controls, communications, and active filters.
