OPA859 Series

1.8 GHz Unity-Gain Bandwidth, 3.3 nV/√Hz, FET Input Amplifier

Catalog

1.8 GHz Unity-Gain Bandwidth, 3.3 nV/√Hz, FET Input Amplifier

Part	Mounting Type	Package / Case	Supplier Device Package	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Amplifier Type	-3db Bandwidth	Gain Bandwidth Product	Current - Supply	Current - Output / Channel	Voltage - Supply Span (Min) [Min]	Slew Rate	Number of Circuits	Voltage - Input Offset	Voltage - Supply Span (Max) [Max]
Texas Instruments OPA859IDSGR	Surface Mount	8-WFDFN Exposed Pad	8-WSON (2x2)	Differential	125 °C	-40 °C	General Purpose	1.8 GHz	900 MHz	20.5 mA	105 mA	3.3 V	1150 V/µs	1	900 µV	5.25 V

Catalog

1.8 GHz Unity-Gain Bandwidth, 3.3 nV/√Hz, FET Input Amplifier

Key Features

• High Unity-Gain Bandwidth: 1.8 GHzGain Bandwidth Product: 900 MHzUltra-Low Bias Current MOSFET Inputs: 10 pALow Input Voltage Noise: 3.3 nV/√HzSlew Rate: 1150 V/µsLow Input Capacitance:Common-Mode: 0.6 pFDifferential: 0.2 pFWide Input Common-Mode Range:1.4 V from Positive SupplyIncludes Negative Supply2.5 VPPOutput Swing in TIA ConfigurationSupply Voltage Range: 3.3 V to 5.25 VQuiescent Current: 20.5 mAPackage: 8-Pin WSONTemperature Range: –40 to +125°CHigh Unity-Gain Bandwidth: 1.8 GHzGain Bandwidth Product: 900 MHzUltra-Low Bias Current MOSFET Inputs: 10 pALow Input Voltage Noise: 3.3 nV/√HzSlew Rate: 1150 V/µsLow Input Capacitance:Common-Mode: 0.6 pFDifferential: 0.2 pFWide Input Common-Mode Range:1.4 V from Positive SupplyIncludes Negative Supply2.5 VPPOutput Swing in TIA ConfigurationSupply Voltage Range: 3.3 V to 5.25 VQuiescent Current: 20.5 mAPackage: 8-Pin WSONTemperature Range: –40 to +125°C

Description

The OPA859 is a wideband, low-noise operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 0.9-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths in low-capacitance photodiode applications. The graph below shows the bandwidth and noise performance of the OPA859 as a function of the photodiode capacitance when the amplifier is set as a TIA. The total noise is calculated along a bandwidth range extending from dc to the calculated frequency, f, on the left-hand scale. The OPA859 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output. The OPA859 is optimized to operate in optical time-of-flight (ToF) systems where the OPA859 is used with time-to-digital converters, such as theTDC7201. Use the OPA859 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as theTHS4541orLMH5401. The OPA859 is a wideband, low-noise operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 0.9-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths in low-capacitance photodiode applications. The graph below shows the bandwidth and noise performance of the OPA859 as a function of the photodiode capacitance when the amplifier is set as a TIA. The total noise is calculated along a bandwidth range extending from dc to the calculated frequency, f, on the left-hand scale. The OPA859 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output. The OPA859 is optimized to operate in optical time-of-flight (ToF) systems where the OPA859 is used with time-to-digital converters, such as theTDC7201. Use the OPA859 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as theTHS4541orLMH5401.