Overview
The OPA4350EA/250, 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 speed, low noise, and rail-to-rail input and output capabilities.
The OPA4350 is available in a quad configuration, offering maximum design flexibility with identical specifications across single, dual, and quad versions. This amplifier operates on a single supply as low as 2.5 V and features a wide input common-mode voltage range that extends 300 mV below ground and 300 mV above the positive supply.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.5 | - | 5.5 | V |
| Input Offset Voltage (VOS) | ±150 | ±500 | ±1 mV | µV |
| Bandwidth | - | 38 | - | MHz |
| Slew Rate | - | 22 | - | V/μs |
| Noise (e_n) | - | 5 | - | nV/√Hz |
| Total Harmonic Distortion + Noise (THD+N) | - | 0.0006% | - | % |
| Operating Temperature Range | -40 | - | 85 | °C |
| Storage Temperature Range | -55 | - | 150 | °C |
Key Features
- Rail-to-rail input and output (within 10 mV of the supply rails)
- High speed operation: 38 MHz bandwidth and 22 V/μs slew rate
- Low noise: 5 nV/√Hz
- Low Total Harmonic Distortion + Noise (THD+N): 0.0006%
- Unity-gain stable
- MicroSize packages: SSOP-16 and SO-14 surface mount for quad versions
- Completely independent circuitry in dual and quad designs for lowest crosstalk and freedom from interaction
- Wide input common-mode voltage range extending 300 mV below ground and 300 mV above the positive supply
Applications
- Driving sampling Analog-to-Digital (A/D) converters
- Cell phone PA control loops
- Video processing
- Data acquisition
- Process control
- Audio processing
- Communications
- Active filters
- Test equipment
Q & A
- What is the minimum supply voltage for the OPA4350? The minimum supply voltage is 2.5 V.
- What is the typical bandwidth of the OPA4350? The typical bandwidth is 38 MHz.
- What is the slew rate of the OPA4350? The slew rate is 22 V/μs.
- What is the noise level of the OPA4350? The noise level is 5 nV/√Hz.
- Is the OPA4350 unity-gain stable? Yes, the OPA4350 is unity-gain stable.
- What are the typical applications of the OPA4350? Typical applications include driving A/D converters, cell phone PA control loops, video processing, and audio processing.
- What is the operating temperature range of the OPA4350? The operating temperature range is from -40°C to 85°C.
- What packages are available for the OPA4350? The OPA4350 is available in SSOP-16 and SO-14 surface mount packages.
- Does the OPA4350 have rail-to-rail input and output? Yes, the OPA4350 has rail-to-rail input and output within 10 mV of the supply rails.
- What is the Total Harmonic Distortion + Noise (THD+N) of the OPA4350? The THD+N is 0.0006%.
