Overview
The OPA855IDSGR is a high-performance, wideband operational amplifier produced by Texas Instruments. It is designed for wideband transimpedance and voltage amplifier applications, particularly in optical time-of-flight (ToF) systems and other high-speed applications. The amplifier features bipolar inputs and is optimized for use with time-to-digital converters such as the TDC7201. It is also suitable for driving high-speed analog-to-digital converters (ADCs) in high-resolution LIDAR systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Bandwidth Product | 8 GHz | |
| Minimum Stable Gain | 7 V/V | |
| Input Voltage Noise | 0.98 nV/√Hz | |
| Slew Rate | 2750 V/µs | |
| Common-mode Input Capacitance | 0.6 pF | |
| Differential Input Capacitance | 0.2 pF | |
| Input Common-mode Range | 0.4 V from positive supply, 1.1 V from negative supply | |
| Total Output Swing | 3 VPP | |
| 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 |
Key Features
- High gain bandwidth product: 8 GHz
- Decompensated, stable gain ≥ 7 V/V
- Low input voltage noise: 0.98 nV/√Hz
- High slew rate: 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, 1.1 V from negative supply
- 3 VPP total output swing
- Supply voltage range: 3.3 V to 5.25 V
- Quiescent current: 17.8 mA
- 8-pin WSON package with exposed thermal pad
Applications
- Optical time-of-flight (ToF) systems
- Optical time domain reflectometry (OTDR)
- 3D scanners
- Laser distance measurement
- Solid-state scanning LIDAR
- Optical ToF position sensors
- Drone vision systems
- Industrial robot LIDAR
- Vacuum robot LIDAR
- Silicon photomultiplier (SiPM) buffer amplifier
- Photomultiplier tube post amplifier
Q & A
- What is the gain bandwidth product of the OPA855?
The gain bandwidth product of the OPA855 is 8 GHz. - What is the minimum stable gain of the OPA855?
The minimum stable gain of the OPA855 is 7 V/V. - What is the input voltage noise of the OPA855?
The input voltage noise of the OPA855 is 0.98 nV/√Hz. - What is the slew rate of the OPA855?
The slew rate of the OPA855 is 2750 V/µs. - What is the input common-mode range of the OPA855?
The input common-mode range of the OPA855 is 0.4 V from the positive supply and 1.1 V from the negative supply. - What is the total output swing of the OPA855?
The total output swing of the OPA855 is 3 VPP. - What is the supply voltage range of the OPA855?
The supply voltage range of the OPA855 is 3.3 V to 5.25 V. - What is the quiescent current of the OPA855?
The quiescent current of the OPA855 is 17.8 mA. - In what package is the OPA855 available?
The OPA855 is available in an 8-pin WSON package. - What is the operating temperature range of the OPA855?
The operating temperature range of the OPA855 is –40°C to +125°C.
