OPA858 Series

5.5 GHz Gain Bandwidth Product, Decompensated Transimpedance Amplifier with FET Input

Catalog

5.5 GHz Gain Bandwidth Product, Decompensated Transimpedance Amplifier with FET Input

Part	Amplifier Type	Output Type	Voltage - Supply, Single/Dual (±) [Max]	Voltage - Supply, Single/Dual (±)	Voltage - Supply, Single/Dual (±) [Min]	Current - Output / Channel	Slew Rate	Current - Supply (Main IC)	Supplied Contents	Utilized IC / Part	Channels per IC	Board Type	Voltage - Supply Span (Max) [Max]	Gain Bandwidth Product	Current - Input Bias	Package / Case	Supplier Device Package	Current - Supply	Mounting Type	Number of Circuits	Voltage - Input Offset	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply Span (Min) [Min]
Texas Instruments OPA858DSGEVM	Transimpedance	Single-Ended	2.6 V 5.2 V	±1.6V	3.2 V	30 mA	2000 V/µs	19 mA	Board(s)	OPA858	1 - Single	Fully Populated
Texas Instruments OPA858IDSGT	J-FET	Single-Ended				105 mA	2000 V/µs						5.25 V	5.5 GHz	0.4 pA	8-WFDFN Exposed Pad	8-WSON (2x2)	21 mA	Surface Mount	1	800 µV	125 °C	-40 °C	3.3 V
Texas Instruments OPA858IDSGR	J-FET	Single-Ended				105 mA	2000 V/µs						5.25 V	5.5 GHz	0.4 pA	8-WFDFN Exposed Pad	8-WSON (2x2)	21 mA	Surface Mount	1	800 µV	125 °C	-40 °C	3.3 V

Catalog

5.5 GHz Gain Bandwidth Product, Decompensated Transimpedance Amplifier with FET Input

Key Features

• High Gain Bandwidth Product: 5.5 GHzDecompensated, Gain ≥ 7 V/V (Stable)Ultra-Low Bias Current MOSFET Inputs: 10 pALow Input Voltage Noise: 2.5 nV/√HzSlew rate: 2000 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 mAAvailable in 8-Pin WSON PackageTemperature Range: –40 to +125°CHigh Gain Bandwidth Product: 5.5 GHzDecompensated, Gain ≥ 7 V/V (Stable)Ultra-Low Bias Current MOSFET Inputs: 10 pALow Input Voltage Noise: 2.5 nV/√HzSlew rate: 2000 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 mAAvailable in 8-Pin WSON PackageTemperature Range: –40 to +125°C

Description

The OPA858 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 5.5-GHz gain bandwidth product (GBWP) enables applications requiring high closed-loop bandwidths at transimpedance gains in the tens to hundreds of kΩs range. The graph below demonstrates the bandwidth and noise performance of the OPA858 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated over a bandwidth range extending from DC to the calculated f-3dBfrequency on the left-hand scale. The OPA858 package features a feedback pin (FB) that simplifies the feedback network connection between the input and the output. The OPA858 is optimized for use in optical Time-of-Flight (ToF) systems like the one shown in the figure below where the OPA858 is used with theTDC7201time-to-digital converter. The OPA858 can be used in high-resolution LIDAR systems with a high-speed analog-to-digital converter (ADC) and a differential output amplifier like theTHS4541orLMH5401to drive the ADC. The OPA858 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 5.5-GHz gain bandwidth product (GBWP) enables applications requiring high closed-loop bandwidths at transimpedance gains in the tens to hundreds of kΩs range. The graph below demonstrates the bandwidth and noise performance of the OPA858 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated over a bandwidth range extending from DC to the calculated f-3dBfrequency on the left-hand scale. The OPA858 package features a feedback pin (FB) that simplifies the feedback network connection between the input and the output. The OPA858 is optimized for use in optical Time-of-Flight (ToF) systems like the one shown in the figure below where the OPA858 is used with theTDC7201time-to-digital converter. The OPA858 can be used in high-resolution LIDAR systems with a high-speed analog-to-digital converter (ADC) and a differential output amplifier like theTHS4541orLMH5401to drive the ADC.