Datasheet AD7414, AD7415 (Analog Devices) - 15

link to page 15 link to page 15 link to page 15 link to page 15 link to page 15
Data Sheet AD7414/ AD7415 TEMPERATURE ACCURACY VS. SUPPLY TYPICAL TEMPERATURE ERROR GRAPH
The temperature accuracy specifications are guaranteed for Figure 18 shows the typical temperature error plots for one voltage supplies of 3 V and 5.5 V only. Figure 16 gives the device with VDD at 3.3 V and at 5.5 V. typical performance characteristics of a large sample of parts
4
over the full voltage range of 2.7 V to 5.5 V. Figure 17 gives the
3
typical performance characteristics of one part over the full voltage range of 2.7 V to 5.5 V.
2 °C) 5.5V 4 1 ROR ( R 3 E 0 2 °C) RATURE –1 –40°C E 3.3V 1 MP –2 RROR ( TE E 0 –3 +40°C RATURE –1 –4 E –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 95 100 110 125 MP +85°C –2 TEMPERATURE (°C)
02463-018
TE
Figure 18. Typical Temperature Error @ 3.3 V and 5.5 V
–3
Figure 19 shows a histogram of the temperature error at
–42.7 3.0 5.5
ambient temperature (40°C) over approximately 6,000 units.
SUPPLY VOLTAGE (V)
02463-016 Figure 19 shows that over 70% of the AD7414/AD7415 devices Figure 16. Typical Temperature Error vs. Supply for Large Sample of Parts tested have a temperature error within ±0.3°C.
900 4 AMBIENT TEMPERATURE = 40°C 800 3 700 2 –40°C 600 1 RROR (°C) 500 E 0 R OF UNITS 400 +40°C RATURE –1 300 NUMBE E +85°C MP –2 200 TE –3 100 0 –4 –1.08 –0.81 –0.54 –0.27 0 0.27 0.54 0.81 1.08 2.7 3.3 5.0 5.5 TEMPERATURE ERROR (°C)
02463-019
SUPPLY VOLTAGE (V)
02463-017 Figure 19. Ambient Temperature Error @ 3 V Figure 17. Typical Temperature Error vs. Supply for One Part Rev. G | Page 15 of 19 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS THEORY OF OPERATION CIRCUIT INFORMATION FUNCTIONAL DESCRIPTION MEASUREMENT TECHNIQUE TEMPERATURE DATA FORMAT INTERNAL REGISTER STRUCTURE ADDRESS POINTER REGISTER CONFIGURATION REGISTER (ADDRESS 0x01) TEMPERATURE VALUE REGISTER (ADDRESS 0x00) AD7414 THIGH REGISTER (ADDRESS 0X02) AD7414 TLOW REGISTER (ADDRESS 0x03) SERIAL INTERFACE SERIAL BUS ADDRESS WRITE MODE Writing to the Address Pointer Register for a Subsequent Read Writing a Single Byte of Data to the Configuration Register, THIGH Register, or TLOW Register READ MODE SMBUS ALERT POWER-ON DEFAULTS OPERATING MODES Mode 1 Mode 2 POWER VS. THROUGHPUT Mode 1 Mode 2 MOUNTING THE AD7414/AD7415 SUPPLY DECOUPLING TEMPERATURE ACCURACY VS. SUPPLY TYPICAL TEMPERATURE ERROR GRAPH OUTLINE DIMENSIONS ORDERING GUIDE