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Solutions Search - LT1034 - Micropower Dual Reference

Two Terminal Current Source

Jan 1st 1987
The opamp buffers the upper potential of a shunt regulator to set a voltage drop on R1 equal to the reference. The net current to RL is the programmed R1 current plus the quiescent supply current of the opamp passing through the reference. ...

Circuit 

 

Self Buffered Micropower Reference

Jan 1st 1987
The opamp provides controlled bias current to a shunt reference through its supply connection. Since the opamp can operate with both inputs and outputs at the low-side supply potential, the buffer action works properly for sourcing output current at the same voltage as the reference itself. ...

Circuit 

 

Micropower, 10ppm/°C, ±5V Reference

Jan 1st 1987
The left opamp precisely amplifies the 1.2V shunt reference to +5V and the right section inverts that to make -5V. ...

Circuit 

 

Micropower Thermocouple Signal Conditioner with Cold Junction Compensation

Jan 1st 1987
A thermistor, shown as R3, is used to monitor the cold junction temperature. Its resistance becomes smaller as the cold junction temperature increases. An increase in cold junction temperature will reduce the output voltage of the Type J thermocouple by 52uV/C. The voltage reference and scaling of resistor values creates an ...

Circuit