Datenblatt-Suchmaschine für elektronische Bauteile |
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ISL22416WFRT10Z Datenblatt(PDF) 9 Page - Intersil Corporation |
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ISL22416WFRT10Z Datenblatt(HTML) 9 Page - Intersil Corporation |
9 / 14 page 9 FN6227.2 September 9, 2009 Pin Description Potentiometer Pins RH AND RL The high (RH) and low (RL) terminals of the ISL22416 are equivalent to the fixed terminals of a mechanical potentiometer. RH and RL are referenced to the relative position of the wiper and not the voltage potential on the terminals. With WR set to 127 decimal, the wiper will be closest to RH, and with the WR set to 0, the wiper is closest to RL. RW RW 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 WR register. SHDN The SHDN pin forces the resistor to end-to-end open circuit condition on RH and shorts RW to RL. When SHDN is returned to logic high, the previous latch settings put RW at the same resistance setting prior to shutdown. This pin is logically ANDed with SHDN bit in ACR register. SPI interface is still available in shutdown mode and all registers are accessible. This pin must remain HIGH for normal operation. FIGURE 15. DCP CONNECTION IN SHUTDOWN MODE FIGURE 11. TC FOR RHEOSTAT MODE IN ppm FIGURE 12. FREQUENCY RESPONSE (2.6MHz) FIGURE 13. MIDSCALE GLITCH, CODE 3Fh TO 40h FIGURE 14. LARGE SIGNAL SETTLING TIME Typical Performance Curves (Continued) 0 50 100 150 200 250 300 16 36 56 76 96 TAP POSITION (DECIMAL) 50k 10k OUTPUT INPUT WIPER AT MID POINT (POSITION 40h) RTOTAL = 9.5kΩ SIGNAL AT WIPER (WIPER UNLOADED) WIPER MID POINT MOVEMENT FROM 3Fh TO 40h SIGNAL AT WIPER (WIPER UNLOADED MOVEMENT FROM 7Fh TO 00h) SCL RL RW RH ISL22416 |
Ähnliche Teilenummer - ISL22416WFRT10Z |
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Ähnliche Beschreibung - ISL22416WFRT10Z |
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