Overview
The OPA855-Q1 is a high-performance, wideband operational amplifier designed by Texas Instruments. It is AEC-Q100 qualified for automotive applications, ensuring reliability over a wide temperature range of –40°C to +125°C. This amplifier is optimized for use in various high-speed applications, particularly in optical time-of-flight (ToF) systems, LIDAR, and other precision measurement technologies. The OPA855-Q1 features bipolar inputs, making it suitable for wideband transimpedance and voltage amplifier applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Bandwidth Product (GBWP) | 8 GHz | |
| Minimum Stable Gain | 7 V/V | |
| Input Voltage Noise | 0.98 nV/√Hz | |
| Slew Rate | 2750 V/µs | |
| Input Capacitance | Common-mode: 0.6 pF, Differential: 0.2 pF | |
| Supply Voltage Range | 3.3 V to 5.25 V | |
| Quiescent Current | 17.8 mA | |
| Package | 8-pin WSON | |
| Operating Temperature Range | –40°C to +125°C | |
| Output Voltage Swing | 3 VPP total |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade 1: –40°C to +125°C.
- High gain bandwidth product of 8 GHz.
- Decompensated, stable at gains ≥ 7 V/V.
- Low input voltage noise of 0.98 nV/√Hz.
- High slew rate of 2750 V/µs.
- Low input capacitance: common-mode 0.6 pF, differential 0.2 pF.
- Wide input common-mode range: 0.4 V from positive supply and 1.1 V from negative supply.
- Power-down feature with low quiescent current.
Applications
- Automotive LIDAR and Time-of-Flight (ToF) cameras.
- Optical time domain reflectometry (OTDR).
- 3D scanners and laser distance measurement.
- Solid-state scanning LIDAR and optical ToF position sensors.
- Drone vision systems.
- Silicon photomultiplier (SiPM) buffer amplifiers and photomultiplier tube post amplifiers.
Q & A
- What is the gain bandwidth product of the OPA855-Q1?
The gain bandwidth product of the OPA855-Q1 is 8 GHz.
- What is the minimum stable gain for the OPA855-Q1?
The minimum stable gain for the OPA855-Q1 is 7 V/V.
- What is the input voltage noise of the OPA855-Q1?
The input voltage noise of the OPA855-Q1 is 0.98 nV/√Hz.
- What is the slew rate of the OPA855-Q1?
The slew rate of the OPA855-Q1 is 2750 V/µs.
- What is the supply voltage range for the OPA855-Q1?
The supply voltage range for the OPA855-Q1 is 3.3 V to 5.25 V.
- What is the quiescent current of the OPA855-Q1?
The quiescent current of the OPA855-Q1 is 17.8 mA.
- What package is the OPA855-Q1 available in?
The OPA855-Q1 is available in an 8-pin WSON package.
- What are the typical applications of the OPA855-Q1?
The OPA855-Q1 is typically used in automotive LIDAR, Time-of-Flight (ToF) cameras, 3D scanners, and other high-speed optical measurement systems.
- Is the OPA855-Q1 AEC-Q100 qualified?
Yes, the OPA855-Q1 is AEC-Q100 qualified for automotive applications.
- Does the OPA855-Q1 have a power-down feature?
Yes, the OPA855-Q1 has a power-down feature with low quiescent current.
