ISL22426 Datasheet, PDF (6/15 Pages) Intersil Corporation – Low Noise, Low Power, SPI Bus, 128 Taps

ISL22426
Operating Specifications Over the recommended operating conditions, unless otherwise specified. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
(Note 22) (Note 5) (Note 22) UNIT
t_FO
SDO Output Fall Time
R_pu = 2k, Cb = 30pF
60
ns
t_CS
CS Deselect Time
2
µs
NOTES:
5. Typical values are for T_A = +25°C and 3.3V supply voltage.
6. LSB: [V(R_W)₁₂₇ – V(R_W)₀]/127. V(R_W)₁₂₇ and V(R_W)₀ are V(R_W) 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 – V_CC]/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. V_MATCH = [V(RWx)_i – V(RWy)_i]/LSB, for i = 1 to 127, x = 0 or 1 and y = 0 or 1.
12.
TC_V
=
-------^M-----^a----^x----⁽--^V----⁽---^R-----^W------⁾--ⁱ--⁾---–-----^M-----ⁱ--ⁿ----⁽--^V-----⁽--^R-----^W------⁾--ⁱ--⁾------ × ------¹----⁰---⁶------- ^{for i = 16 to 112 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper}
[Max(V(RW)_i) + Min(V(RW)_i)] ⁄ 2 +165°C voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
13. MI = |RW₁₂₇ – RW₀|/127. MI is a minimum increment. RW₁₂₇ and RW₀ are the measured resistances for the DCP register set to 7F hex and 00
hex respectively.
14. Roffset = RW₀/MI, when measuring between RW and RL.
Roffset = RW₁₂₇/MI, when measuring between RW and RH.
15. RDNL = (RW_i – RW_i-1)/MI, for i = 1 to 127.
16. RINL = [RW_i – (MI • i) – RW₀]/MI, for i = 1 to 127.
17. R_MATCH = (RW_i,x – RW_i,y)/MI, for i = 1 to 127, x = 0 or 1 and y = 0 or 1.
18.
TC_R
=
----^[---^M-----^a----^x----⁽--^R-----ⁱ--⁾---–-----^M-----ⁱ--ⁿ----⁽--^R-----ⁱ--⁾--^]----
[Max(Ri) + Min(Ri)] ⁄ 2
×
------¹---⁰----⁶-------
+ 165 °C
for i = 16 to 112, T = -40°C to +125°C. Max( )
the minimum value of the resistance over the
is the maximum value
temperature range.
of
the
resistance
and
Min
(
)
is
19. t_WC 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.
20. Rpu is specified for the highest data rate transfer for the device. Higher value pull-up can be used at lower data rates.
21. Limits should be considered typical and are not production tested.
22. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
6
FN6180.2
September 8, 2009