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ISL22329 Scheda tecnica(PDF) 8 Page - Intersil Corporation |
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ISL22329 Scheda tecnica(HTML) 8 Page - Intersil Corporation |
8 / 13 page 8 FN6330.2 September 4, 2009 Pin Descriptions Potentiometers Pins RWI (I = 0,1) RWi is the wiper terminal and is equivalent to the movable terminal of a mechanical potentiometer. The position of the wiper within the array is determined by the WRi register. SHDN The SHDN pin forces the resistors to end-to-end open circuit condition and shorts all RWs to GND. When SHDN is returned to logic high, the previous latch settings put RWi at the same resistance setting prior to shutdown. This pin is logically ANDed with SHDN bit in ACR register. I2C interface is still available in shutdown mode and all registers are accessible. This pin must remain HIGH for normal operation. FIGURE 7. END-TO-END RTOTAL % CHANGE vs TEMPERATURE FIGURE 8. TC FOR VOLTAGE DIVIDER MODE IN ppm FIGURE 9. MIDSCALE GLITCH, CODE 3Fh TO 40h FIGURE 10. LARGE SIGNAL SETTLING TIME Typical Performance Curves (Continued) -1.0 -0.5 0.0 0.5 1.0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) VCC = 2.7V 50k 10k VCC = 5.5V 0 15 30 45 60 75 90 105 16 36 56 76 96 TAP POSITION (DECIMAL) 10 50 SIGNAL AT WIPER (WIPER UNLOADED) SIGNAL AT WIPER (WIPER UNLOADED) MOVEMENT FROM 7Fh TO 00h SCL FIGURE 11. DCP CONNECTION IN SHUTDOWN MODE RW ISL22329 |
Codice articolo simile - ISL22329 |
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Descrizione simile - ISL22329 |
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