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Single-Port Input Into Differencial Input Feeder Line Driver

2015-01-02 16:39  
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Single-Port Input Into Differencial Input Feeder Line Driver (OPA2604 And BUF634) Circuit
Single-Port Input Into Differencial Input Feeder Line Driver (OPA2604 And BUF634) Circuit
The picture shows the single-port input into differencial input feeder line driver. The circuit uses 4 different integrated operational amplifiers: high-fidelity dual operational amplifiers OPA2604, which is a FET input type operational amplifier; two 250mA high-speed buffer BUF634, which is working in wide-band mode (the pin 1 should be connected to the negative power port which is pin 4), that means its band width is extended to about 180MHz, and in this case the BUF634's voltage magnification is 1; also a INA103 operational amplifier, which is a instrument amplifier with low noise and low distortion. If necessary, it could also use the INA101 to replace the INA103. The integrated dual operational amplifiers OPA2604's main parameters (typical value) are shown in the picture 2.