OPA855-Q1 Series

Automotive 8-GHz gain bandwidth, decompensated transimpedance amplifier with bipolar input

Catalog

Automotive 8-GHz gain bandwidth, decompensated transimpedance amplifier with bipolar input

Part	Gain Bandwidth Product	Supplier Device Package	Qualification	Current - Output / Channel	Output Type	Package / Case	Mounting Type	Slew Rate	Amplifier Type	Number of Circuits	Voltage - Input Offset	Grade	Voltage - Supply Span (Min) [Min]	Voltage - Supply Span (Max) [Max]	Current - Supply	Current - Input Bias	Operating Temperature [Min]	Operating Temperature [Max]	-3db Bandwidth
Texas Instruments OPA855QDSGRQ1	8 GHz	8-WSON (2x2)	AEC-Q100	105 mA	Rail-to-Rail	8-WFDFN Exposed Pad	Surface Mount	2750 V/µs	General Purpose	1	200 çV	Automotive	3.3 V	5.25 V	17.8 mA	12 µA	-40 °C	125 °C	2.5 GHz

Catalog

Automotive 8-GHz gain bandwidth, decompensated transimpedance amplifier with bipolar input

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TAHigh gain bandwidth product: 8 GHzDecompensated, gain ≥ 7 V/V (stable)Low input voltage noise: 0.98 nV/√HzSlew rate: 2750 V/µsLow Input capacitance:Common-mode: 0.6 pFDifferential: 0.2 pFWide input common-mode range:0.4 V from positive supply1.1 V from negative supply3 VPPtotal output swingSupply voltage range: 3.3 V to 5.25 VQuiescent current: 17.8 mAPackage: 8-pin WSONTemperature range: –40°C to +125°CAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TAHigh gain bandwidth product: 8 GHzDecompensated, gain ≥ 7 V/V (stable)Low input voltage noise: 0.98 nV/√HzSlew rate: 2750 V/µsLow Input capacitance:Common-mode: 0.6 pFDifferential: 0.2 pFWide input common-mode range:0.4 V from positive supply1.1 V from negative supply3 VPPtotal output swingSupply voltage range: 3.3 V to 5.25 VQuiescent current: 17.8 mAPackage: 8-pin WSONTemperature range: –40°C to +125°C

Description

The OPA855-Q1 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-Q1 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from DC to the calculated frequency (f) on the left scale. The OPA855-Q1 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output. The OPA855-Q1 is optimized to operate in optical time-of-flight (ToF) systems where the OPA855-Q1 is used with time-to-digital converters, such as theTDC7201. Use the OPA855-Q1 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as theTHS4541-Q1. The OPA855-Q1 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-Q1 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from DC to the calculated frequency (f) on the left scale. The OPA855-Q1 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output. The OPA855-Q1 is optimized to operate in optical time-of-flight (ToF) systems where the OPA855-Q1 is used with time-to-digital converters, such as theTDC7201. Use the OPA855-Q1 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as theTHS4541-Q1.