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Solutions Search - LT1078 - Micropower, Dual, Single Supply, Precision Op Amps

Single Supply, Micropower, Second Order Lowpass Filter with 60Hz Notch

Jan 1st 1987
The first section is a standard low-pass filter with Fc=40Hz. The second section is a notch filter tuned to eliminate 60Hz mains pickup from the signal. ...

Circuit 

 

Lead-Acid Low-Battery Detector with System Shutdown

Jan 1st 1987
Resistor dividers are used to provide a signal comparison against a reference voltage. The opamps operate as precision comparators to provide indications of battery charge state. ...

Circuit 

 

Single Battery, Micropower, Gain = 100, Instrumentation Amplifier

Jan 1st 1987
This is a classic two-opamp instrumentation configuration. The low voltage and micropower characteristics of the LT1078 provide operation on a 3V coin-cell supply. ...

Circuit 

 

85V, –100V Common Mode Range Instrumentation Amplifier (AV = 10)

Jan 1st 1987
The input section is a classic difference amplifier set to A=0.1 so that the Vcm is attenuated by 10x along with the signal of interest. The second section has A=100 so that the overall circuit has A=10 but yet supports a large Vcm working range. ...

Circuit 

 

LT1078 Absolute Value Circuit (Full-Wave Rectifier)

Jan 1st 1987
For negative inputs, the first section operates as a closed-loop inverter (A=-1) and the second stage is simply a buffer for the positive output. When the input signal is positive, the first opamp output remains saturated near ground and the diode becomes high-impedance, allowing the signal to pass directly to the buffer stage ...

Circuit LTspice 

 

Micropower Dead Zone Generator

Jan 1st 1987
Opamp in lower left functions as a polarity detect comparator, controlling the FET switches in the circuit. The upper left stage in conjunction with the FET, functions as an absolute value circuit so that only positive signal representation passes to the dead-zone function. Q2 is held in cutoff by the control voltage on Q3, ...

Circuit 

 

Platinum RTD 2°C TO 220°C Signal Conditioner with Curvature Correction

Jan 1st 1987
The LT1078 is a micropower dual op amp in 8-pin packages including the small outline surface mount package that is optimized for single supply operation at 5V. ±15V specifications are also provided. ...

Circuit 

 

Platinum RTD Signal Conditioner with Curvature Correction

Jan 1st 1987
The left stage forms a stable precision current source by establishing the reference voltage across a precision resistor, and about half of this current passes through the sensor. The right opamp provides an amplification of the resistance difference between the sensor and a fixed precision resistor to generate a temperature ...

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 

 

Half-Wave Rectifier

Jan 1st 1987
This is a conventional inverting amplifier, but with a single supply the output can only provide the positive side of the result. The specific characteristics of the opamp provide well controlled clipping behavior. ...

Circuit