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Solutions Search - LTC1043 - Dual Precision Instrumentation Switched-Capacitor Building Block

50MHz Thermistor RMS to DC Converter

Nov 16th 1992
The LTC1043 is a monolithic, charge-balanced, dual switched capacitor instrumentation building block. A pair of switches alternately connects an external capacitor to an input voltage and then connects the charged capacitor across an output port. The internal switches have a break-before-make action. An internal clock is provided ...

Circuit 

 

LT1006/LTC1043 Voltage Controlled Current Source with Ground Referred Input and Output

Nov 16th 1992
A flying capacitor device such as the LTC1043 can produce a precision voltage differential over a wide common mode range. Here it converts a ground referred input voltage directly to a differential voltage across a fixed resistor which then forces a precise current sourced at the circuit output. ...

Circuit 

 

Balanced Frequency Converter (Suitable for Frequencies up to 50kHz)

Nov 16th 1992
This circuit takes advantage of aliasing that occurs in any time sampled system. The output signal frequency is the difference in frequency between the input signal and the switch sampling rate. A 24KHz input signal sampled at 25KHz will be converted to a 1KHz output signal. In addition by using the LTC1992 fully differential ...

Circuit 

 

±5V Precision Instrumentation Amplifier

Nov 16th 1992
A flying capacitor is ideal for virtually eliminating dc and low frequency common mode errors. This is desired for a low voltage differential to single ended instrumentation amplifier stage. ...

Circuit 

 

Single 5V Supply Precision Linearized 0°C to 400°C Platinum RTD Signal Conditioner

Nov 16th 1992
The LTC1043 is a monolithic, charge-balanced, dual switched capacitor instrumentation building block. A pair of switches alternately connects an external capacitor to an input voltage and then connects the charged capacitor across an output port. The internal switches have a break-before-make action. An internal clock is provided ...

Circuit 

 

Linear 0°C to 220°C Thermistor Thermometer Powered by 5V Supply

Nov 16th 1992
The LT1006 is the first precision single supply operational amplifier. Its design has been optimized for single supply operation with a full set of specifications at 5V. Specifications at ±15V are also provided. The LT1006 has a low offset voltage of 20μV, drift of 0.2μV/°C, offset current of 120pA, gain of ...

Circuit 

 

5V Powered, Quartz-Stabilized 10kHz Voltage to Frequency Converter has 0.0015% Linearity and 8ppm/°C Temperature Coefficient

Nov 16th 1992
Almost all precision voltage-to-frequency converters utilize charge pump based feedback for stability. These schemes rely on a capacitor for stability. A great deal of effort towards this approach has resulted in high performance V to F converters. Obtaining temperature coefficients below 100ppm/°C requires careful attention ...

Circuit 

 

Humidty Sensor To Data Aquisition System Interface

Jan 1st 1987
The circuit shown in the schematic features zero drift operational amplifiers (LTC1250 and LTC1050) and a precision instrumentation switched capacitor block (LTC1043). This design will maintain excellent DC accuracy down to microvolt levels. This method was chosen over the use of a true RMS-to-DC or log converter because of ...

Circuit 

 

Single 5V Supply Linearized 0°C to 400°C Platinum RTD Signal Conditioner

Jan 1st 1987
The LTC1051 is a high performance, low cost dual/quad zero-drift operational amplifiers. The unique achievement of the LTC1051/LTC1053 is that they integrate on chip the sample-and-hold capacitors usually required externally by other chopper amplifiers. Further, the LTC1051/LTC1053 offer better combined overall DC and AC performance ...

Circuit 

 

Linear Thermometer

Nov 1st 1983
T1 has a built in pair of thermistors with linearizing resistors custom scaled for a specific temperature range., 0C to 100C in this example. The flying capacitor LTC1043 eliminates any dc loading on the precision network to maintain linearity over the entire temperature range. Amplifier gain is scaled to provide an output of ...

Circuit