Datasheet LTC6943 (Analog Devices) - 11
| Fabricante | Analog Devices |
| Descripción | Micropower, Dual Precision Instrumentation Switched Capacitor Building Block |
| Páginas / Página | 16 / 11 — TYPICAL APPLICATIO S. 50MHz Thermal RMS/DC Converter. Single Supply … |
| Formato / tamaño de archivo | PDF / 250 Kb |
| Idioma del documento | Inglés |
TYPICAL APPLICATIO S. 50MHz Thermal RMS/DC Converter. Single Supply Precision Linearized Platinum RTD Signal Conditioner
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LTC6943
U TYPICAL APPLICATIO S 50MHz Thermal RMS/DC Converter
5V 5V 3 5V 30k** 30k** 1/2 LTC6943 3 8 CALIBRATION ADJUST 5V 5 4 + 20k 10k 1 5 LT1013 + 2 7 DC OUTPUT 1 – 100k* LT1013 4 0V TO 3.5V 1 1 1 µF µF µF 6 – 10k 2 14 0.01µF 301Ω* 10k 10k 16 13 0.01µF 10k 300mV– 1µF 10V 15 RMS INPUT BRN RED RED BRN 2% ACCURACY DC-50MHZ T1 T2 100:1 CREST FACTOR CAPABILITY T1 – T2 = YELLOW SPRINGS INST. CO. THERMISTOR COMPOSITE GRN GRN ENCLOSE T1 AND T2 IN STYROFOAM *1% RESISTOR **0.1% RESISTOR 6943 • TA13
Single Supply Precision Linearized Platinum RTD Signal Conditioner
250k* (LINEARITY CORRECTION LOOP) 5V 10k* 5V 3 8 2.4k + 1 1/2 LT1013 2.74k* LT1009 2 – 2.5V 4 50k ZERO ADJUST 0.1µF 8.25k* 3 2k 0V TO 4V = 0°C TO 400°C 1/2 LTC6943 1/2 LTC6943 ±0.05°C 5 6 7 4 5 + 7 1/2 LT1013 6 1k – 5k GAIN LINEARITY 9 1 ADJUST ADJUST 1µF 1µF 887Ω* 1µF 1µF 8.06k* 10 2 1k* 11 12 13 16 Rp Rp = ROSEMOUNT 118MFRTD 1mA 100Ω *1% FILM RESISTOR AT 0°C TRIM SEQUENCE: 14 15 SET SENSOR TO 0°C VALUE. ADJUST ZERO FOR 0V OUT 0.01µF SET SENSOR TO 100°C VALUE. ADJUST GAIN FOR 1000V OUT SET SENSOR TO 400°C VALUE. ADJUST LINEARITY FOR 4000V OUT REPEAT AS REQUIRED 6943 • TA14 6943f 11
U TYPICAL APPLICATIO S 50MHz Thermal RMS/DC Converter
5V 5V 3 5V 30k** 30k** 1/2 LTC6943 3 8 CALIBRATION ADJUST 5V 5 4 + 20k 10k 1 5 LT1013 + 2 7 DC OUTPUT 1 – 100k* LT1013 4 0V TO 3.5V 1 1 1 µF µF µF 6 – 10k 2 14 0.01µF 301Ω* 10k 10k 16 13 0.01µF 10k 300mV– 1µF 10V 15 RMS INPUT BRN RED RED BRN 2% ACCURACY DC-50MHZ T1 T2 100:1 CREST FACTOR CAPABILITY T1 – T2 = YELLOW SPRINGS INST. CO. THERMISTOR COMPOSITE GRN GRN ENCLOSE T1 AND T2 IN STYROFOAM *1% RESISTOR **0.1% RESISTOR 6943 • TA13
Single Supply Precision Linearized Platinum RTD Signal Conditioner
250k* (LINEARITY CORRECTION LOOP) 5V 10k* 5V 3 8 2.4k + 1 1/2 LT1013 2.74k* LT1009 2 – 2.5V 4 50k ZERO ADJUST 0.1µF 8.25k* 3 2k 0V TO 4V = 0°C TO 400°C 1/2 LTC6943 1/2 LTC6943 ±0.05°C 5 6 7 4 5 + 7 1/2 LT1013 6 1k – 5k GAIN LINEARITY 9 1 ADJUST ADJUST 1µF 1µF 887Ω* 1µF 1µF 8.06k* 10 2 1k* 11 12 13 16 Rp Rp = ROSEMOUNT 118MFRTD 1mA 100Ω *1% FILM RESISTOR AT 0°C TRIM SEQUENCE: 14 15 SET SENSOR TO 0°C VALUE. ADJUST ZERO FOR 0V OUT 0.01µF SET SENSOR TO 100°C VALUE. ADJUST GAIN FOR 1000V OUT SET SENSOR TO 400°C VALUE. ADJUST LINEARITY FOR 4000V OUT REPEAT AS REQUIRED 6943 • TA14 6943f 11