OPA858IDSGR
Active5.5 GHZ GAIN BANDWIDTH PRODUCT, DECOMPENSATED TRANSIMPEDANCE AMPLIFIER WITH FET INPUT
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OPA858IDSGR
Active5.5 GHZ GAIN BANDWIDTH PRODUCT, DECOMPENSATED TRANSIMPEDANCE AMPLIFIER WITH FET INPUT
Technical Specifications
Parameters and characteristics for this part
| Specification | OPA858IDSGR |
|---|---|
| Amplifier Type | J-FET |
| Current - Input Bias | 0.4 pA |
| Current - Output / Channel | 105 mA |
| Current - Supply | 21 mA |
| Gain Bandwidth Product | 5.5 GHz |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Single-Ended |
| Package / Case | 8-WFDFN Exposed Pad |
| Slew Rate | 2000 V/µs |
| Supplier Device Package | 8-WSON (2x2) |
| Voltage - Input Offset | 800 µV |
| Voltage - Supply Span (Max) [Max] | 5.25 V |
| Voltage - Supply Span (Min) [Min] | 3.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 7.38 | |
| 10 | $ 5.03 | |||
| 25 | $ 4.42 | |||
| 100 | $ 3.75 | |||
| 250 | $ 3.42 | |||
| 500 | $ 3.22 | |||
| 1000 | $ 3.05 | |||
| Digi-Reel® | 1 | $ 7.38 | ||
| 10 | $ 5.03 | |||
| 25 | $ 4.42 | |||
| 100 | $ 3.75 | |||
| 250 | $ 3.42 | |||
| 500 | $ 3.22 | |||
| 1000 | $ 3.05 | |||
| Tape & Reel (TR) | 3000 | $ 3.10 | ||
| Texas Instruments | LARGE T&R | 1 | $ 4.25 | |
| 100 | $ 3.46 | |||
| 250 | $ 2.72 | |||
| 1000 | $ 2.31 | |||
Description
General part information
OPA858 Series
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.
Documents
Technical documentation and resources
