ISL22424_15 Datasheet, PDF (8/20 Pages) Intersil Corporation – Low Noise, Low Power, SPI® Bus,256 Taps

ISL22424
Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN (NOTE 4) MAX
UNIT
Cpin
SCK, SDI, SDO and CS pin
(Note 20) capacitance
10
pF
f_SCK
t_CYC
t_WH
t_WL
t_LEAD
t_LAG
t_SU
t_H
t_RI
t_FI
t_DIS
t_SO
t_V
t_HO
t_RO
t_FO
t_CS
NOTES:
SPI frequency
SPI clock cycle time
SPI clock high time
SPI clock low time
Lead time
Lag time
SDI, SCK and CS input setup time
SDI, SCK and CS input hold time
SDI, SCK and CS input rise time
SDI, SCK and CS input fall time
SDO output Disable time
SDO output setup time
SDO output valid time
SDO output hold time
SDO output rise time
SDO output fall time
CS deselect time
R_pu = 2k, Cbus = 30pF
R_pu = 2k, Cbus = 30pF
5
MHz
200
ns
100
ns
100
ns
250
ns
250
ns
50
ns
50
ns
10
ns
10
20
ns
0
100
ns
50
ns
150
ns
0
ns
60
ns
60
ns
2
µs
4. Typical values are for T_A = +25°C and 3.3V supply voltage.
5. LSB: [V(RW)₂₅₅ – V(RW)₀]/255. V(RW)₂₅₅ and V(RW)₀ are V(RW) for the DCP register set to FF hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
6. ZS error = V(RW)₀/LSB.
7. FS error = [V(RW)₂₅₅ – V_CC]/LSB.
8. DNL = [V(RW)_i – V(RW)_i-1]/LSB-1, for i = 1 to 255. i is the DCP register setting.
9. INL = [V(RW)_i – i • LSB – V(RW)]/LSB for i = 1 to 255.
10. V_MATCH= [V(RWx)i -V(RWy)i]/LSB, for i = 0 to 255, x = 0 to 1, y = 0 to 1.
11.
TC_V
=
-------^M-----^a----^x----^--^V----^---^R-----^W------^--ⁱ--^---–-----^M-----ⁱ--ⁿ----^--^V-----^--^R-----^W------^--ⁱ--^------
MaxVRW_i + MinVRW_i  2
₊₁----₆₁---₅₀----_°⁶--_C---
for i = 16 to 240 decimal,
voltage and Min ( ) is the
T = -40°C to +125°C.
minimum value of the
Max( ) is the maximum value of the wiper
wiper voltage over the temperature range.
12. MI = |RW₂₅₅ – RW₀|/255. MI is a minimum increment. RW₂₅₅ and RW₀ are the measured resistances for the DCP register set to FF hex and
00 hex respectively.
13. Roffset = RW₀/MI, when measuring between RW and RL.
Roffset = RW₂₅₅/MI, when measuring between RW and RH.
14. RDNL = (RW_i – RW_i-1)/MI -1, for i = 1 to 255.
15. RINL = [RW_i – (MI • i) – RW₀]/MI, for i = 1 to 255.
16. R_MATCH= [(Rx)i -(Ry)i]/MI, for i = 0 to 255, x = 0 to 1, y = 0 to 1.
17.
TC_R
=
----^---^M-----^a----^x----^--^R-----ⁱ--^---–-----^M-----ⁱ--ⁿ----^--^R-----ⁱ--^--^----
MaxRi + MinRi  2
₊₁----₆₁---₅-⁰---_°⁶--_C---
for i = 16 to 240, T = -40°C to +125°C. Max( ) is the maximum value of the resistance and Min ( ) is
the minimum value of the resistance over the temperature range.
18. 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.
19. R_pu is specified for the highest data rate transfer for the device. Higher value pull-up can be used at lower data rates.
20. This parameter is not 100% tested.
8
FN6425.1
September 9, 2015