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