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OPA858 Gain Bandwidth Product (GBWP) FET Input Amp
Texas Instruments' op-amp is optimized for optical time-of-flight (ToF) systems and high-resolution LIDAR systems
Texas Instruments' OPA858 is a wideband, low-noise op-amp with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 5.5 GHz GBWP enables applications requiring high closed-loop bandwidths at transimpedance gains in the tens to hundreds of kΩs range.
The OPA858 can be 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-3 dB frequency. The device 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 ToF systems when used with a time-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 to drive the ADC.
- High GBWP: 5.5 GHz
- Decompensated, gain ≥ 7 V/V (stable)
- Ultra-low bias current MOSFET inputs: 10 pA
- Low input voltage noise: 2.5 nV/√Hz
- Slew rate: 2000 V/µs
- 2.5 VPP output swing in TIA configuration
- Supply voltage range: 3.3 V to 5.25 V
- Quiescent current: 20.5 mA
- Low input capacitance:
- Common-mode: 0.6 pF
- Differential: 0.2 pF
- Wide input common-mode range:
- 1.4 V from positive supply
- Includes negative supply
- Available in 8-pin WSON package
- Temperature range: -40°C to +125°C
- High-speed transimpedance amplifiers
- Laser distance measurements
- Lidar receivers
- Level transmitters (optical)
- Optical time domain reflectometry (OTDR)
- Distributed temperature sensing
- 3D scanners
- ToF systems
- Autonomous driving systems
OPA858 Op-Amps
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | OPA858IDSGR | IC OPAMP GP 1 CIRCUIT 8WSON | 4023 - Immediate | $52.03 | View Details |
| | OPA858IDSGT | IC OPAMP GP 1 CIRCUIT 8WSON | 2134 - Immediate | $61.33 | View Details |
Evaluation Board
| Image | Manufacturer Part Number | Description | Amplifier Type | Output Type | Slew Rate | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
|  | OPA858DSGEVM | EVAL BOARD FOR OPA858 | Transimpedance | Single-Ended | 2000V/µs | 19 - Immediate | $977.96 | View Details |
Hong Kong, China