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ISL22449UFV14Z Datenblatt(PDF) 5 Page - Intersil Corporation |
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ISL22449UFV14Z Datenblatt(HTML) 5 Page - Intersil Corporation |
5 / 12 page 5 FN6333.2 September 15, 2006 NOTES: 5. Typical values are for TA = +25°C and 3.3V supply voltage. 6. LSB: [V(RW)127 – V(RW)0]/127. V(RW)127 and V(RW)0 are V(RW) for the DCP register set to 7F hex and 00 hex respectively. LSB is the incremental voltage when changing from one tap to an adjacent tap. 7. ZS error = V(RW)0/LSB. 8. FS error = [V(RW)127 – VCC]/LSB. 9. DNL = [V(RW)i – V(RW)i-1]/LSB-1, for i = 1 to 127. i is the DCP register setting. 10. INL = [V(RW)i – i • LSB – V(RW)]/LSB for i = 1 to 127 11. VMATCH = [V(RWx)i – V(RWy)i]/LSB, for i = 1 to 127, x = 0 to 3 and y = 0 to 3. 12. for i = 16 to 112 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range. 13. tWC is the time from the end of a Write sequence of SPI serial interface, to the end of the self-timed internal non-volatile write cycle. 14. Rpu is specified for the highest data rate transfer for the device. Higher value pullup can be used at lower data rates. 15. This parameter is not 100% tested. Hysteresis SHDN, SCK, SDI, and CS input buffer hysteresis 0.05* VCC V VOL SDO output buffer LOW voltage IOL = 4mA 0 0.4 V Rpu (Note 14) SDO pull-up resistor off-chip Maximum is determined by tRO and tFO with maximum bus load Cbus = 30pF, fSCK = 5MHz 2k Ω Cpin (Note 15) SHDN, SCK, SDI, SDO and CS pin capacitance 10 pF fSCK SPI frequency 5MHz tCYC SPI clock cycle time 200 ns tWH SPI clock high time 100 ns tWL SPI clock low time 100 ns tLEAD Lead time 250 ns tLAG Lag time 250 ns tSU SDI, SCK and CS input setup time 50 ns tH SDI, SCK and CS input hold time 50 ns tRI SDI, SCK and CS input rise time 10 ns tFI SDI, SCK and CS input fall time 10 20 ns tDIS SDO output Disable time 0 100 ns tV SDO output valid time 350 ns tHO SDO output hold time 0 ns tRO SDO output rise time Rpu = 2k, Cbus = 30pF 60 ns tFO SDO output fall time Rpu = 2k, Cbus = 30pF 60 ns tCS CS deselect time 2µs tWRT Wiper Response Time after SPI write to WR register 1.5 µs Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER TEST CONDITIONS MIN TYP (NOTE 5) MAX UNIT TC V Max V RW () i () Min V RW () i () – Max V RW () i () Min V RW () i () + [] 2 ⁄ ---------------------------------------------------------------------------------------------- 106 165°C ----------------- × = ISL22449 |
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