发明名称 |
Combination drive-summing circuit for rail-to-rail differential amplifier. |
摘要 |
A combination driver/summing circuit for rail-to-rail operation of a differential amplifier includes a differential amplifier input stage that amplifies an input signal and a current control circuit that regulates the operating currents through the active elements of the differential amplifier input stage. A summing circuit divided into first and second segments and supplied with current from a single common floating current source combines internal currents supplied by the differential amplifier input stage. A class A-B driver/output stage is coupled to the summing circuit to derive at least one output signal representative of the input signal and which is operative over nearly the full rail-to-rail supply voltage range. |
申请公布号 |
EP0617508(A1) |
申请公布日期 |
1994.09.28 |
申请号 |
EP19940200694 |
申请日期 |
1994.03.17 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
HUIJSING, JOHAN HENDRIK;TERO, JOHN |
分类号 |
G06G7/12;H03F3/30;H03F3/345;H03F3/45 |
主分类号 |
G06G7/12 |
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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