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Solutions Search - LT1002 - Dual, Matched Precision Operational Amplifier

Precision ±10V Reference

Jan 1st 1998
A precision 6.9V reference can be scaled up to +10V and then inverted with a precision -1 gain stage to provide symmetrical +/-10V reference voltages. The 3.3K resistor feeding back to the + input of the non inverting amplifier maintains a constant 1mA of current to bias the zener reference device. ...

Circuit 

 

LT1002 Two Op Amp Instrumentation Amplifier

Jan 1st 1998
Just two precision amplifiers can be configured to create a differential to single ended instrumentation amplifier. Gain of this example is 100. Gain = R4/R3 * [1 + 1/2*(R2/R1 + R3/R4) + (R2+R3)/R5]. Trim R5 for gain accuracy. ...

Circuit LTspice 

 

LT1002 Three Op Amp Instrumentation Amplifier

Jan 1st 1998
Matched amplifiers are ideal for minimizing errors in a differential input gain stage. This stage is followed by a conventional difference amplifier to provide a single ended output signal. Resistor adjustments optimize the circuit to reject both ac and dc common mode input signals. ...

Circuit 

 

Dual Limit Microvolt Comparator

Jan 1st 1998
Low offset precision amplifiers make very accurate comparators. This is a window comparator when an output LED indicates that the input is outside of the window. Hysteresis to ensure smooth switching is provided to one of the offset nulling terminals with minimal impact on offset and therefore threshold accuracy. ...

Circuit 

 

Precision Amplifier Drives 500ohm Load to ±10V

Jan 1st 1998
Two amplifiers can be combined to double the output current of just one amplifier. In this circuit the gain is arranged in such a way that ensures that each amplifier contributes half of the load current. One tenth of the output voltage is impressed across a resistor that is one fifth of the load resistor making its current ...

Circuit 

 

LT1002 Strain Gauge Signal Conditioner with Bridge Excitation

Jan 1st 1998
A buffered 7V reference provides a 5V excitation voltage to a balanced strain gauge resistor bridge. To provide a 0V output when the bridge is perfectly balanced, a second amplifier biases the bottom of the bridge to a negative compliment of the 5V excitation voltage. Using a dual matched amplifier package such as the LT1002 ...

Circuit