Overview
The OPA355 series, produced by Texas Instruments, is a family of high-speed, voltage-feedback CMOS operational amplifiers. These amplifiers are designed for applications requiring wide bandwidth, such as video processing, ultrasound, optical networking, and more. The OPA355 is unity-gain stable and can drive large output currents, making it versatile for various uses. It features a digital shutdown (enable) function, which provides power savings during idle periods and places the output in a high-impedance state to support output multiplexing. The series is available in single, dual, and triple configurations, offering flexibility in design and implementation.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage Range | 2.5 | 5.5 | V | ||
| Quiescent Current per Channel | 8.3 | mA | |||
| Gain-Bandwidth Product | G = 10, RL = 1 kΩ | 200 | MHz | ||
| Slew Rate | VS = 5 V, G = 2 | 360 | V/µs | ||
| Input Offset Voltage | VS = +5 V | ±2 | ±9 | ±15 | mV |
| Common-Mode Input Range | (V–) – 0.1 | (V+) – 1.5 | V | ||
| Differential Gain Error | NTSC, RL = 150 Ω | 0.02% | |||
| Differential Phase Error | NTSC, RL = 150 Ω | 0.05° | |||
| Output Voltage Swing | VS = 5 V, RL = 150 Ω | 0.2 | 0.3 | V | |
| Continuous Output Current | ±60 | mA |
Key Features
- High-speed operation with a 200-MHz gain-bandwidth product and 360 V/µs slew rate.
- Unity-gain stable and capable of driving large output currents.
- Digital shutdown (enable) function for power savings and output multiplexing support.
- Wide input common-mode range extending 100 mV below ground and up to 1.5 V from V+.
- Output swing within 100 mV of the rails, supporting wide dynamic range.
- Available in single (SOT-23-6 and SO-8), dual (VSSOP-10), and triple (TSSOP-14 and SO-14) versions.
- Low differential gain error (0.02%) and differential phase error (0.05°) suitable for video applications.
- Low quiescent current of 8.3 mA per channel.
Applications
- Video processing and transmission.
- Ultrasound equipment.
- 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 and communications equipment.
Q & A
- What is the supply voltage range for the OPA355 series?
The OPA355 series operates over a supply voltage range of 2.5 V to 5.5 V (±1.25 V to ±2.75 V).
- What is the gain-bandwidth product of the OPA355?
The gain-bandwidth product is 200 MHz for G = 10 and RL = 1 kΩ.
- What is the slew rate of the OPA355?
The slew rate is 360 V/µs for VS = 5 V and G = 2.
- What is the input offset voltage of the OPA355?
The input offset voltage is ±2 mV to ±15 mV depending on the temperature range.
- What is the common-mode input range of the OPA355?
The common-mode input range extends 100 mV below ground and up to 1.5 V from V+.
- What is the differential gain error of the OPA355?
The differential gain error is 0.02% for NTSC and RL = 150 Ω.
- What is the output voltage swing of the OPA355?
The output voltage swing is within 100 mV of the rails, supporting a wide dynamic range.
- What are the available package options for the OPA355 series?
The OPA355 series is available in single (SOT-23-6 and SO-8), dual (VSSOP-10), and triple (TSSOP-14 and SO-14) versions.
- What is the quiescent current per channel for the OPA355?
The quiescent current per channel is 8.3 mA.
- What are some typical applications of the OPA355 series?
Typical applications include video processing, ultrasound, optical networking, photodiode transimpedance amplifiers, and more.
