发明名称 |
OPTO-ELECTRONIC TRANSCONDUCTORS |
摘要 |
PCT No. PCT/GB94/00386 Sec. 371 Date Aug. 24, 1995 Sec. 102(e) Date Aug. 24, 1995 PCT Filed Feb. 25, 1994 PCT Pub. No. WO94/19867 PCT Pub. Date Sep. 1, 1994A transconductance device particularly suitable for use as a high frequency active filter has an input stage including at least one field effect transistor (M1) arranged to drive a laser diode (LD1) and an output stage including at least one photodiode (PD1) optically coupled to the laser diode. The output stage is preferably provided with a high impedance bias current supply circuit. In an alternative arrangement particularly useful as an operational amplifier, a differential input stage includes a pair of laser diodes (LD1 and LD2) optically coupled to respective photodiodes (PD1 and PD2) connected in series, the output being taken from the junction of the two photodiodes. |
申请公布号 |
EP0686317(B1) |
申请公布日期 |
1996.12.18 |
申请号 |
EP19940907640 |
申请日期 |
1994.02.25 |
申请人 |
IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY & MEDICINE |
发明人 |
TOUMAZOU, CHRISTOFER;VANISRI, TONGTOD |
分类号 |
H03H11/04;H03H11/14;H03H11/48 |
主分类号 |
H03H11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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