Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
239 words
An amplifier, comprising: a first differential amplifier section including first and second differentially connected transistor pairs, the bases of the first pair of transistors being coupled to a first input of the amplifier, the bases of the second pair of transistors being coupled to a terminal to which a reference potential is supplied, the collectors of the first pair of transistors and a first one of the second pair of transistors being coupled to a first output of the amplifier and the collector of the second one of the second pair of transistors being coupled to a second output of the amplifier; a second differential amplifier section including first and second differentially connected transistor pairs, the bases of the first pair of transistors being coupled to a second input of the amplifier, the bases of the second pair of transistors being coupled to said terminal, the collectors of the first pair of transistors and a first one of said second pair of transistors being coupled to said second output of the amplifier and the collector of the second one of said second pair of transistors being coupled to said first output of the amplifier; and circuit means coupled between the emitters of said first transistors of said second pair of transistors respectively of said first and second differential amplifier sections for providing a signal which cancels the non-linear effects of the base-emitter junctions of said taansistors of the amplifier.
Claim 2
Dependent Claim
239 words
An amplifier, comprising: a first differential amplifier section including first and second differentially connected transistor pairs, the bases of the first pair of transistors being coupled to a first input of the amplifier, the bases of the second pair of transistors being coupled to a terminal to which a reference potential is supplied, the collectors of the first pair of transistors and a first one of the second pair of transistors being coupled to a first output of the amplifier and the collector of the second one of the second pair of transistors being coupled to a second output of the amplifier; a second differential amplifier section including first and second differentially connected transistor pairs, the bases of the first pair of transistors being coupled to a second input of the amplifier, the bases of the second pair of transistors being coupled to said terminal, the collectors of the first pair of transistors and a first one of said second pair of transistors being coupled to said second output of the amplifier and the collector of the second one of said second pair of transistors being coupled to said first output of the amplifier; and circuit means coupled between the emitters of said first transistors of said second pair of transistors respectively of said first and second differential amplifier sections for providing a signal which cancels the non-linear effects of the base-emitter junctions of said taansistors of the amplifier.
Claim 3
Dependent Claim
17 words
The amplifier of claim 1 wherein said circuit means includes a resistor having a first resistance value.
Claim 4
Dependent Claim
78 words
The amplifier of claim 2 wherein said first differential amplifier section includes: a first resistor coupled between the emitters of the first one of said first pair of transistors and said second one of said second pair of transistors having a predetermined resistance value; and a second resistor coupled between the emitters of the second one of said first pair of transistors and the said first transistor of said second pair of transistors having said predetermined resistance value.
Claim 5
Dependent Claim
74 words
The amplifier of claim 3 wherein said second differential amplifier section includes: a first resistor coupled between the emitters one of said first pair of transistors and said second transistor of said second pair of transistors having said predetermined resistance value; and a second resistor coupled between the emitters of the second one of said first pair of transistors and said first transistor of said second pair of transistors having said predetermined resistance value.
Claim 6
Dependent Claim
35 words
The amplifier of claim 4 wherein said resistance value of said first and second resistors of said first and second differential amplifier sections is twice said resistance value of said resistor of said circuit means.
Claim 7
Dependent Claim
31 words
The amplifier of claim 5 including current supply means coupled to the emitters of said transistors of said first and second differential amplifier sections for sourcing a substantially constant current therethrough.