Datasheet Details
| Part number | OPA855 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 2.71 MB |
| Description | Bipolar Input Amplifier |
| Download | OPA855 Download (PDF) |
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Overview: OPA855 SBOS622C – JULY 2018 – REVISED JANUARY 2023 OPA855 8-GHz Gain Bandwidth Product, Gain of 7-V/V Stable, Bipolar Input Amplifier.
| Part number | OPA855 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 2.71 MB |
| Description | Bipolar Input Amplifier |
| Download | OPA855 Download (PDF) |
|
|
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• High gain bandwidth product: 8 GHz • Decompensated, gain ≥ 7 V/V (stable) • Low input voltage noise: 0.98 nV/√Hz • 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 • Package: 8-pin WSON – Bare die (preview) • Temperature range: –40°C to +125°C 2 Applications • Optical time domain reflectometry (OTDR) • 3D scanner • Laser distance measurement • Solid-state scanning LIDAR • Optical ToF position sensor • Drone vision • Industrial robot LIDAR • Vaccum robot LIDAR • Silicon photomultiplier (SiPM) buffer amplifier • Photomultiplier tube post amplifier CF Rx Lens VBIAS 3.8 V RF 5V ± + OPA855 VREF CF TLV3501 + ± Stop 2 Start 2 The OPA855 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications.
When the device is configured as a transimpedance amplifier (TIA), the 8-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains of up to tens of kΩs.
The following graph shows the bandwidth and noise performance of the OPA855 as a function of the photodiode capacitance when the amplifier is configured as a TIA.
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|---|---|
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