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Solutions Search - Resistive Thermal Device (RTD)

LTC2063 RTD Sensor with ±1°C Precision

Jul 27th 2017
This low power platinum resistance temperature detector (RTD) sensor circuit draws only 35μA total supply current on a minimum 2.6V rail, and is accurate to within ±1°C at room temperature, including all error intrinsic to the Vishay PTS Class F0.3 Variant RTD. It covers the temperature ...

Circuit LTspice 

 

LTC2984 Thermocouple Measurement with Automatic Cold Junction Compensation

Jun 17th 2015
The LTC®2984 measures a wide variety of temperature sensors and digitally outputs the result, in °C or °F, with 0.1°C accuracy and 0.001°C resolution. The LTC2984 can measure the temperature of virtually all standard (type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold ...

Circuit 

 

LTC2983 Thermocouple Measurement with Automatic Cold Junction Compensation

Nov 10th 2014
The LTC®2983 measures a wide variety of temperature sensors and digitally outputs the result, in °C or °F, with 0.1°C accuracy and 0.001°C resolution. The LTC2983 can measure the temperature of virtually all standard (type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold ...

Circuit 

 

0°C to 100°C Linear RTD Amplifier with 90°C Overtemperature Alarm

Aug 16th 2005
The LTC6078 is a dual, low offset, low noise operational amplifiers with low power consumption and rail-to-rail input/output swing. Input offset voltage is trimmed to less than 25μV and the CMOS inputs draw less than 50pA of bias current. The low offset drift, excellent CMRR, and high voltage gain make it a good choice for ...

Circuit 

 

RTD and Thermocouple Remote Temperature Digitizer

Apr 1st 2004
The LTC2449 is commonly used with thermocouples and RTDs as shown in this circuit. Thermocouple outputs produce very small changes (tens of microvolts per degree C) and the output will be negative if the thermocouple is colder than the “cold junction” connection from the thermocouple to the copper traces on the PCB. The ...

Circuit 

 

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

Jul 12th 2001
The LTC2053 is a high precision instrumentation amplifier. The CMRR is typically 116dB with a single or dual 5V supply and is independent of gain. The input offset voltage is guaranteed below 10μV with a temperature drift of less than 50nV/°C. The LTC2053 is easy to use; the gain is adjustable with two external resistors, ...

Circuit LTspice 

 

Single Supply Current Source for Platinum RTD

Feb 1st 2001
The LT1800's Precision and low bias input stage is used to good advantage in Fig. 5 Single Supply Current Source for Platinum RTD circuit. R4 and C1 stabilize the circuit making it insensitive to cable characteristics. Output is 1.00V at 0ºC and its gain factor is 3.85mV/ºC. ...

Circuit 

 

5V Powered, Single Supply Current Source for –50°C to 600°C Platinum RTD

Feb 1st 2001
The LT1880 op amp brings high accuracy input performance and rail-to-rail output swing to the SOT-23 package. Input offset voltage is trimmed to less than 150μV and the low drift maintains this accuracy over the operating temperature range. Input bias current is an ultralow 900pA maximum. ...

Circuit 

 

Single 2.7V to 20V Supply Current Source for –50°C to 600°C Platinum RTD

Apr 4th 2000
The LT6010 op amp combines low noise and high precision input performance with low power consumption and rail-to-rail output swing. Input offset voltage is trimmed to less than 35mV. The low drift and excellent long-term stability guarantee a high accuracy over temperature and over time. The 110pA maximum input bias current ...

Circuit 

 

2-Channel ADC Measures Differential Temperature from Bridge Configured RTDs that Eliminates Drop in Connecting Wire

Feb 4th 2000
The LTC2402 is a 2-channel 2.7V to 5.5V micropower 24-bit analog-to-digital converters with an integrated oscillator, 4ppm INL and 0.6ppm RMS noise. These ultrasmall devices use delta-sigma technology and a new digital filter architecture that settles in a single cycle. This eliminates the latency found in conventional DS converters ...

Circuit 

 

2-Channel ADC Measures Differential Temperature from Bridge Configured RTDs

Feb 4th 2000
The LTC2402 is a 2-channel 2.7V to 5.5V micropower 24-bit analog-to-digital converters with an integrated oscillator, 4ppm INL and 0.6ppm RMS noise. These ultrasmall devices use delta-sigma technology and a new digital filter architecture that settles in a single cycle. This eliminates the latency found in conventional DS converters ...

Circuit 

 

Remote Platinum RTD 0°C to 800°C Temperature Digitizer using 5V Supply

Feb 4th 2000
The LTC2402 is a 2-channel 2.7V to 5.5V micropower 24-bit analog-to-digital converters with an integrated oscillator, 4ppm INL and 0.6ppm RMS noise. These ultrasmall devices use delta-sigma technology and a new digital filter architecture that settles in a single cycle. This eliminates the latency found in conventional DS converters ...

Circuit 

 

2-Channel ADC Measures Differential Temperature from Stacked Half Bridge Platinum RTD that Eliminates Half the Excitation Current and the Matching Requirements of a Full Bridge

Feb 4th 2000
The LTC2402 is a 2-channel 2.7V to 5.5V micropower 24-bit analog-to-digital converters with an integrated oscillator, 4ppm INL and 0.6ppm RMS noise. These ultrasmall devices use delta-sigma technology and a new digital filter architecture that settles in a single cycle. This eliminates the latency found in conventional DS converters ...

Circuit 

 

Platinum RTD Digitizer Accurate within 1° Over 0°C to 100°C

Jun 24th 1999
Platinum RTD Value Is Linearly Converted to Period by LTC1799. Logic and Second LTC1799 Clock Digitize Period into Output Data Bursts. Bootstrapping Pin Capacitance is used to Permit Remotely Located Sensor. ...

Circuit 

 

Remote Half Bridge Digitizer Platinum RTD with Noise Suppression on Reference

May 27th 1999
The LTC2414/LTC2418 are 8-/16-channel (4-/8-differential) micropower 24-bit ΔΣ analog-to-digital converters. They operate from 2.7V to 5.5V and include an integrated oscillator, 2ppm INL and 0.2ppm RMS noise. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single ...

Circuit 

 

Simple Platinum RTD Temperature Measurement Using 5V Supply

Sep 16th 1998
The LTC2400 is a 2.7V to 5.5V micropower 24-bit converter with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. It uses delta-sigma technology and provides single cycle settling time for multiplexed applications. Through a single pin the LTC2400 can be configured for better than 110dB rejection at 50Hz or 60Hz ±2%, ...

Circuit 

 

Platinum RTD Signal Conditioner with Curvature Correction

Jan 1st 1998
The value of the resistance of the RTD sensor is converted to a voltage by running a constant current, 50uA, through it. As the sensor heats the resistance increases and unbalances the bridges of 1K resistors. The amplifier restores balance by sourcing more current into the lower fixed 1K resistor thus producing an increasing ...

Circuit 

 

2°C to 400°C Platinum RTD Signal Conditioner with Curvature Correction from 5.6V to 10V Supply

Jan 1st 1998
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 

 

Measuring Seven Platinum RTD Temperatures with One Reference Resistor and One Reference Current

Jun 25th 1997
The LTC2428 is a 8-channel 2.7V to 5.5V micropower 20-bit A/D converters with an integrated oscillator, 8ppm INL and 1.2ppm RMS noise. It uses a delta-sigma technology and provide single cycle digital filter settling time (no latency delay) for multiplexed applications. The first conversion after the channel is changed is always ...

Circuit 

 

Measuring Seven RTD Temperatures with One Reference Resistor and One Reference Current

Jun 25th 1997
The LTC2408 is 8-channel 2.7V to 5.5V micropower 24-bit A/D converters with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. They use delta-sigma technology and provide single cycle digital filter settling time (no latency delay) for multiplexed applications. The first conversion after the channel is changed is always ...

Circuit 

 

Battery Powered (Li-Ion) Platinum RTD Signal Conditioner with Curvature Correction

Nov 26th 1996
The LT2078 is a micropower dual op amp in 8-pin small outline, standard surface mount package, and LT2079 is a micropower quad op amp offered in the standard 14-pin surface mount package. Both devices are optimized for single supply operation at 5V. ±15V specifications are also provided. ...

Circuit 

 

5V Powered, Linearized Platinum RTD 0°C to 400°C ±0.05°C Signal Conditioner

Aug 17th 1995
The LT1014 is the first precision quad operational amplifier which directly upgrades designs in the industry standard 14-pin DIP LM324/LM348/OP-11/4156 pin configuration. It is no longer necessary to compromise specifications, while saving board space and cost, as compared to single operational amplifiers. ...

Circuit 

 

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

Aug 17th 1995
The LTC6943 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 

 

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 

 

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 

 

Kelvin-Sensed Temperature Sensor Amplifier for –50°C to 150°C Platinum RTD from 10V Reference

Jan 1st 1987
The LT1012 is an internally compensated universal precision operational amplifier which can be used in practically all precision applications. The LT1012 combines picoampere bias currents (which are maintained over the full –55°C to 125°C temperature range), microvolt offset voltage (and low drift with time and temperature), ...

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 

 

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 

 

High Resolution 0°C to 220°C Platinum RTD Temperature Digitizer using 5V Supply

Jan 1st 1987
The LTC2400 is a 2.7V to 5.5V micropower 24-bit converter with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. It uses delta-sigma technology and provides single cycle settling time for multiplexed applications. Through a single pin the LTC2400 can be configured for better than 110dB rejection at 50Hz or 60Hz ±2%, ...

Circuit 

 

Linearized Platinum Resistance Thermometer with ±0.025°C Accuracy Over 0 to 100°C

Nov 1st 1983
Platinum RTD's are typically driven with a constant current so that their resistance value directly translates to a temperature dependant voltage. Here the LT1001 and the LM129 create a constant current through the input 10K resistor which all flows through the sense resistor. A second amplifier inverts the signal to provide ...

Circuit