Datasheet LTC2484 (Analog Devices) - 42

LTC2484
Typical applicaTion
5V PIC16F73 C8 C7 18 20 1µF 0.1µF RC7 V 5V 17 DD C6 RC6 ISOTHERMAL 16 0.1µF RC5 15 RC4 3 2 14 R2 RC3 Y1 6 2k REF V 9 6MHz 4 CC CS 13 RC2 OSC1 IN+ 9 SCK 12 RC1 7 10 LTC2484 SDO 11 RC0 1 OSC2 SDI 28 D1 IN– RB7 10 TYPE K R1 5 f 27 BAT54 GND GND O RB6 THERMOCOUPLE 26 1 10k JACK 5V 8 11 RB5 MCLR 25 (OMEGA MPJ-K-F) RB4 24 5V RB3 23 RB2 22 RB1 V D7 CC 21 RB0 D6 7 RA5 2 × 16 CHARACTER D5 6 5V LCD DISPLAY RA4 D4 5 (OPIREX DMC162488 RA3 1 OR SIMILAR) EN 4 3 RA2 R6 CONTRAST RW 3 9 5k RA1 V GND D0 D1 D2 D3 RS 2 SS 19 2 RA0 VSS 5V 2484 F44 CALIBRATE R3 R4 R5 10k 10k 10k 2 1 DOWN UP
Figure 44. Complete Type K Thermocouple Meter relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LTC1050 Precision Chopper Stabilized Op Amp No External Components 5µV Offset, 1.6µVP-P Noise LT®1236A-5 Precision Bandgap Reference, 5V 0.05% Max Initial Accuracy, 5ppm/°C Drift LT1460 Micropower Series Reference 0.075% Max Initial Accuracy, 10ppm/°C Max Drift LTC2400 24-Bit, No Latency ∆Σ ADC in SO-8 0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA LTC2401/LTC2402 1-/2-Channel, 24-Bit, No Latency ∆Σ ADCs in MSOP 0.6ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA LTC2404/LTC2408 4-/8-Channel, 24-Bit, No Latency ∆Σ ADCs 0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA with Differential Inputs LTC2410 24-Bit, No Latency ∆Σ ADC with Differential Inputs 0.8µVRMS Noise, 2ppm INL LTC2411/LTC2411-1 24-Bit, No Latency ∆Σ ADCs with Differential Inputs in MSOP 1.45µVRMS Noise, 4ppm INL, Simultaneous 50Hz/60Hz Rejection (LTC2411-1) LTC2413 24-Bit, No Latency ∆Σ ADC with Differential Inputs Simultaneous 50Hz/60Hz Rejection, 800nVRMS Noise LTC2415/LTC2415-1 24-Bit, No Latency ∆Σ ADCs with 15Hz Output Rate Pin-Compatible with the LTC2410 LTC2414/LTC2418 8-/16-Channel 24-Bit, No Latency ∆Σ ADCs 0.2ppm Noise, 2ppm INL, 3ppm Total Unadjusted Errors 200µA LTC2420 20-Bit, No Latency ∆Σ ADC in SO-8 1.2ppm Noise, 8ppm INL, Pin-Compatible with LTC2400 LTC2430/LTC2431 20-Bit, No Latency ∆Σ ADCs with Differential Inputs 2.8µV Noise, SSOP-16/MSOP Package LTC2435/LTC2435-1 20-Bit, No Latency ∆Σ ADCs with 15Hz Output Rate 3ppm INL, Simultaneous 50Hz/60Hz Rejection LTC2440 High Speed, Low Noise 24-Bit ∆Σ ADC 3.5kHz Output Rate, 200mV Noise, 24.6 ENOBs LTC2480 16-Bit, No Latency ∆Σ ADC with PGA/Temperature Sensor Pin-Compatible with LTC2484 LTC2482 16-Bit, No Latency ∆Σ ADC Pin-Compatible with LTC2484 2484ff 42 Linear Technology Corporation LT 1014 REV F • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 9503 F5o-r 7m 4 o 1 r7e information www.linear.com/LTC2484 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC2484 LINEAR TECHNOLOGY CORPORATION 2005 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics (Normal Speed) Pin Configuration Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts