Overview
The OPA355-Q1 is a high-speed, voltage-feedback CMOS operational amplifier designed by Texas Instruments. This device is optimized for applications requiring wide bandwidth and is particularly suited for automotive and other high-performance environments. It is unity-gain stable, features a 200-MHz gain bandwidth, and a high slew rate of 360 V/μs. The OPA355-Q1 operates on a single-supply voltage range of 2.5 V to 5.5 V or dual supplies from ±1.25 V to ±2.75 V, making it highly versatile. The device includes a digital shutdown function, which places the output in a high-impedance state and reduces the supply current to 3.4 μA, enhancing power efficiency in idle periods.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| Unity-Gain Bandwidth | - | 450 | - | MHz |
| Gain Bandwidth | - | 200 | - | MHz |
| Slew Rate | - | 360 | - | V/μs |
| Input Noise Voltage Density | - | 5.8 | - | nV/√Hz |
| Input Bias Current | 3 | - | 50 | pA |
| Shutdown Current | - | 3.4 | - | μA |
| Supply Voltage Range | 2.5 | - | 5.5 | V |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | SOT-23 (6) | - | - |
Key Features
- AEC-Q100 qualified for automotive applications with an operating temperature range of –40°C to +125°C.
- High gain bandwidth of 200 MHz and a slew rate of 360 V/μs.
- Low noise: 5.8 nV/√Hz input noise voltage density.
- Excellent video performance with differential gain of 0.02% and differential phase of 0.05°.
- Rail-to-rail output within 100 mV of the supply rails.
- Low input bias current of 3 pA.
- Digital shutdown function with enable and disable times of 100 ns and 30 ns, respectively.
- Thermal shutdown protection.
- MicroSIZE packages (SOT-23-6).
Applications
- Automotive systems.
- Active filters.
- High-speed integrators.
- Analog-to-Digital Converter (ADC) input buffers.
- Digital-to-Analog Converter (DAC) output amplifiers.
- Transimpedance amplifiers, particularly for wideband photodiode applications.
Q & A
- What is the gain bandwidth of the OPA355-Q1 operational amplifier?
The OPA355-Q1 has a gain bandwidth of 200 MHz.
- What is the slew rate of the OPA355-Q1?
The slew rate of the OPA355-Q1 is 360 V/μs.
- What is the input noise voltage density of the OPA355-Q1?
The input noise voltage density is 5.8 nV/√Hz.
- What is the operating temperature range of the OPA355-Q1?
The operating temperature range is –40°C to +125°C.
- What is the supply voltage range for the OPA355-Q1?
The supply voltage range is from 2.5 V to 5.5 V.
- Does the OPA355-Q1 have a shutdown feature?
- What is the package type of the OPA355-Q1?
The OPA355-Q1 is available in a SOT-23 (6) package.
- Is the OPA355-Q1 suitable for automotive applications?
- What are some typical applications of the OPA355-Q1?
Typical applications include active filters, high-speed integrators, ADC input buffers, DAC output amplifiers, and transimpedance amplifiers.
- Does the OPA355-Q1 have thermal protection?
