OPA381, OPA2381: Precision, Low Power, 18MHz Transimpedance Amplifier

The OPA381 family of Transimpedance Amplifiers provides 18MHz of Gain Bandwidth (GBW), with extremely high precision, excellent long-term stability, and very low 1/f noise. The OPA381 features an offset voltage of 25??V (max), offset drift of 0.1??V/C (max), and bias current of 3pA. The OPA381 far exceeds the offset, drift, and noise performance that conventional JFET op amps provide. The signal bandwidth of a Transimpedance Amplifier depends largely on the GBW of the Amplifier and the parasitic capacitance of the Photodiode as well as the feedback resistor. The 18MHz GBW of the OPA381 enables a trans-impedance bandwidth of >: 250kHz in most configurations. The OPA381 is ideally suited for fast control loops for power level measurement on an optical fiber. As a result of the high precision and low-noise characteristics of the OPA381 a dynamic range of 5 decades CAN be achieved. This capability allows the measurement of signal currents in the order of 10nA, and up to 1mA in a single I/V conversion stage. In contrast to Logarithmic Amplifiers the OPA381 provides very wide bandwidth throughout the full dynamic range. By using an external pulldown resistor to 5V, the output voltage range CAN be extended to include 0V. The OPA381 and OPA2381 are both available in MSOP-8 and DFN-8 (3mm x 3mm) packages. They are specified from 40C to +125C. By Texas Instruments
Part Manufacturer Description Datasheet Samples
OPA381AIDRBR Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-SON -40 to 125
OPA381AIDRBT Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-SON -40 to 125
OPA381AIDRBRG4 Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-SON -40 to 125
OPA381AIDGKTG4 Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-VSSOP -40 to 125
OPA381AIDGKT Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-VSSOP -40 to 125
OPA381AIDGKR Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-VSSOP -40 to 125
OPA381AIDGKRG4 Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-VSSOP -40 to 125
OPA381AIDRBTG4 Texas Instruments Precision, Low Power, High-Speed Transimpedance Amplifier 8-SON -40 to 125
OPA381 's PackagesOPA381 's pdf datasheet
OPA381AIDGKR MSOP
OPA381AIDGKRG4 MSOP
OPA381AIDGKT MSOP
OPA381AIDGKTG4 MSOP
OPA381AIDRBR SON
OPA381AIDRBRG4 SON
OPA381AIDRBT SON
OPA381AIDRBTG4 SON




OPA381 Pinout, Pinouts
OPA381 pinout,Pin out
This is one package pinout of OPA381,If you need more pinouts please download OPA381's pdf datasheet.

OPA381 Application circuits
OPA381 circuits
This is one application circuit of OPA381,If you need more circuits,please download OPA381's pdf datasheet.


Related Electronics Part Number

Related Keywords:

OPA381 Pb-Free OPA381 Cross Reference OPA381 Schematic OPA381 Distributor
OPA381 Application Notes OPA381 RoHS OPA381 Circuits OPA381 footprint