Product Details

describe:

The OPA855 is a wideband, low noise operational amplifier with bipolar input for wideband transimpedance and AO3403L voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 8 GHz gain bandwidth product (GBWP) enables high closed-loop bandwidth at transimpedance gains up to tens of kΩ.

The graph below shows the bandwidth and noise performance of the OPA855 as a function of photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along the bandwidth extending from DC to the frequency f calculated on the left scale. The OPA855 package has a feedback pin (FB) to simplify the connection of the feedback network between the input and output.

The OPA855 is optimized to operate in an optical time-of-flight (ToF) system, where the OPA855 is used with a time-to-digital converter such as the TDC7201. Use the OPA855 to drive high-speed analog-to-digital converters (ADCs) in high-resolution LIDAR systems with differential output amplifiers, such as the THS4541 or LMH5401.

characteristic:

●High gain bandwidth product: 8 GHz

To compensate, gain ≥ 7 V/V (stable)

●Low input voltage noise: 0.98 nV/√ Hz

● Slew rate: 2750 -ic/" title="2750 model">2750-ic/" title="2750 model">2750-ic/" title="2750 model">2750-ic/" title="2750 Model number">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750" >2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750 -ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic/" title="Model 2750">2750-ic /" title="Model 2750">2750-ic/" title="Model 2750">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 V PP total output swing

●Supply voltage range: 3.3V to 5.25V

● Quiescent current: 17.8 mA

●Package: 8-pin WSON

●Temperature range: –40°C to +125°C

parameter:

Number of channels (#): 1

GBW (typ.) (MHz): 8000

Total supply voltage (max) (+5V=5, +/-5V=10): 5.25

Total supply voltage (Min) (+5V=5, +/-5V=10): 3.3

Vos (offset voltage @ 25 C) (max) (mV): 2.5

Rail to Rail: No

Features: Shutdown, Decompensated

Bandwidth @Acl (MHz): 2500

Operating Temperature Range (°C): -40 to 125