Overview
The OPA355UA/2K5G4 is a high-speed, voltage-feedback CMOS operational amplifier produced by Texas Instruments. This device is designed for applications requiring wide bandwidth, such as video processing, ultrasound, and optical networking. The OPA355 series is unity-gain stable and can drive large output currents, making it suitable for a variety of high-speed and high-precision applications. It features a digital shutdown (enable) function, which provides power saving during idle periods and supports output multiplexing by placing the output in a high-impedance state.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Unity-Gain Bandwidth | 450 | MHz |
| Gain-Bandwidth Product (GBW) | 200 | MHz |
| Noise | 5.8 | nV/√Hz |
| Differential Gain | 0.02% | |
| Differential Phase | 0.05° | |
| 0.1-dB Gain Flatness | 75 | MHz |
| Input Range | Includes Ground, up to 1.5 V from V+ | |
| Output Swing | Within 100 mV of the rails | |
| Input Bias Current | 3 | pA |
| Shutdown Current | 3.4 | µA |
| Enable and Disable Time | 100 ns and 30 ns | |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage Range | 2.5 V to 5.5 V | |
| Quiescent Current per Channel | 8.3 mA | |
| Thermal Shutdown Junction Temperature | 160 | °C |
Key Features
- High-speed voltage-feedback CMOS operational amplifier
- Unity-gain stable with a wide bandwidth of 200 MHz GBW and unity-gain bandwidth of 450 MHz
- Low noise of 5.8 nV/√Hz
- Excellent video performance with differential gain of 0.02% and differential phase of 0.05°
- Input range includes ground and extends up to 1.5 V from V+
- Rail-to-rail output within 100 mV of the rails
- Low input bias current of 3 pA and low shutdown current of 3.4 µA
- Fast enable and disable times of 100 ns and 30 ns respectively
- Thermal shutdown protection
- Single-supply operating range from 2.5 V to 5.5 V
- Available in microSIZE packages including SOT-23-6, SO-8, VSSOP-10, TSSOP-14, and SO-14
Applications
- Video processing
- Ultrasound
- Optical networking and tunable lasers
- Photodiode transimpedance amplifiers
- Active filters and high-speed integrators
- Analog-to-Digital Converter (ADC) input buffers
- Digital-to-Analog Converter (DAC) output amplifiers
- Barcode scanners
- Communications
Q & A
- What is the unity-gain bandwidth of the OPA355UA/2K5G4?
The unity-gain bandwidth of the OPA355UA/2K5G4 is 450 MHz.
- What is the gain-bandwidth product (GBW) of this amplifier?
The GBW of the OPA355UA/2K5G4 is 200 MHz.
- What is the noise level of the OPA355UA/2K5G4?
The noise level is 5.8 nV/√Hz.
- What are the differential gain and phase specifications?
The differential gain is 0.02%, and the differential phase is 0.05°.
- What is the input range of the OPA355UA/2K5G4?
The input range includes ground and extends up to 1.5 V from V+.
- What is the output swing of this amplifier?
The output swing is within 100 mV of the rails.
- What is the input bias current of the OPA355UA/2K5G4?
The input bias current is 3 pA.
- What are the enable and disable times for the shutdown function?
The enable time is 100 ns, and the disable time is 30 ns.
- What is the operating temperature range of the OPA355UA/2K5G4?
The operating temperature range is from -40°C to 125°C.
- What are some common applications for the OPA355UA/2K5G4?
Common applications include video processing, ultrasound, optical networking, photodiode transimpedance amplifiers, active filters, and more.
