Overview
The OPA858-Q1, produced by Texas Instruments, is a high-performance, decompensated transimpedance amplifier designed for demanding applications requiring high gain bandwidth and low noise. This amplifier is optimized for use in optical time-of-flight (ToF) systems, high-speed data acquisition, and other applications where wideband signal processing is critical. It features a gain bandwidth product of 5.5 GHz and a gain of 7 V/V, making it suitable for driving high-speed analog-to-digital converters (ADCs) and time-to-digital converters (TDCs) such as the TDC7201. The OPA858-Q1 is AEC-Q100 qualified for automotive applications, ensuring reliability over a temperature range of -40°C to +125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Gain Bandwidth Product (GBWP) | 5.5 GHz |
| Gain | 7 V/V |
| Large-Signal Bandwidth | 600 MHz (VOUT = 2 VPP) |
| Slew Rate | 2000 V/µs |
| Voltage Noise | 2.5 nV/√Hz |
| Operating Temperature | -40°C to +125°C (TA) |
| Package Type | 8-pin WSON (2.00 mm × 2.00 mm) |
| Number of Circuits | 1 |
| Output Type | Single-Ended |
| Mounting Type | Surface Mount |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade of -40°C to +125°C.
- High gain bandwidth product of 5.5 GHz and a gain of 7 V/V.
- Low voltage noise of 2.5 nV/√Hz, making it suitable for applications with weak signal inputs.
- Large-signal bandwidth of 600 MHz (VOUT = 2 VPP) and a slew rate of 2000 V/µs.
- Fabricated on a low-voltage, high-speed BiCMOS process with internal ESD protection diodes.
- Optimized pin layout to minimize parasitic inductance and capacitance, with a feedback pin (FB) for simple feedback network connection.
Applications
- Optical time-of-flight (ToF) systems.
- High-resolution LIDAR systems.
- High-speed data acquisition systems.
- Applications requiring wideband transimpedance amplification.
- Automotive systems due to its AEC-Q100 qualification.
Q & A
- What is the gain bandwidth product of the OPA858-Q1?
The gain bandwidth product of the OPA858-Q1 is 5.5 GHz. - What is the operating temperature range of the OPA858-Q1?
The operating temperature range is -40°C to +125°C. - What type of package does the OPA858-Q1 come in?
The OPA858-Q1 comes in an 8-pin WSON package with a body size of 2.00 mm × 2.00 mm. - What is the slew rate of the OPA858-Q1?
The slew rate of the OPA858-Q1 is 2000 V/µs. - Is the OPA858-Q1 suitable for automotive applications?
Yes, the OPA858-Q1 is AEC-Q100 qualified for automotive applications. - What is the voltage noise of the OPA858-Q1?
The voltage noise of the OPA858-Q1 is 2.5 nV/√Hz. - Can the OPA858-Q1 be used in high-resolution LIDAR systems?
Yes, the OPA858-Q1 can be used in high-resolution LIDAR systems to drive high-speed ADCs. - How does the OPA858-Q1 minimize parasitic inductance and capacitance?
The OPA858-Q1 minimizes parasitic inductance and capacitance through its optimized pin layout, including a feedback pin and a no-connect pin to increase physical separation between critical pins. - What type of input does the OPA858-Q1 have?
The OPA858-Q1 has a FET input. - Is the OPA858-Q1 protected against ESD?
Yes, the OPA858-Q1 has internal ESD protection diodes to the power supplies.
