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| X9318_14 Datasheet, PDF (4/10 Pages) Intersil Corporation – Digitally Controlled Potentiometer | |||
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X9318
D.C. OPERATING CHARACTERISTICS
(VCC = 5V ± 10%, TA = Full Operating Temperature Range unless otherwise stated)
Symbol
Parameter
Limits
Min. Typ.(4) Max.
Unit
Test Conditions
ICC
VCC active current (Increment)
ISB
ILI
VIH
VIL
CIN(5)
Standby supply current
CS, INC, U/D input leakage current -10
CS, INC, U/D input HIGH voltage 2
CS, INC, U/D input LOW voltage
-1
CS, INC, U/D input capacitance
1
3
mA CS = VIL, U/D = VIL or VIH and
INC = 0.4V/2.4V @ min. tCYC
RL, RH, RW not connected
300
1000
µA CS ⥠2.4V, U/D and INC = 0.4V
RL, RH, RW not connected
+10
µA VIN = VSS to VCC
VCC + 1 V
0.8
V
10
pF VCC = 5V, VIN = VSS, TA = 25°C,
f = 1MHz
ENDURANCE AND DATA RETENTION
(VCC = 5V ± 10%, TA = Full Operating Temperature Range)
Parameter
Min.
Minimum endurance
100,000
Data retention
100
Unit
Data changes per bit
Years
Notes: (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage = [V(RW(n)(actual)) - V(RW(n)(expected))]/MI
V(RW(n)(expected)) = n(V(RH) - V(RL))/99 + V(RL), with n from 0 to 99.
(2) Relative linearity is a measure of the error in step size between taps = [V(RW(n+1)) - (V(RW(n)) - MI)]/MI
(3) 1 Ml = Minimum Increment = [V(RH) - V(RL)]/99.
(4) Typical values are for TA = 25°C and nominal supply voltage.
(5) This parameter is not 100% tested.
(6) Ratiometric temperature coefficient = (V(RW)T1(n) - V(RW)T2(n))/[V(RW)T1(n)(T1 - T2) x 106], with T1 & T2 being 2 temperatures, and n
from 0 to 99.
(7) Measured with wiper at tap position 31, RL grounded, using test circuit.
Test Circuit
Equivalent Circuit
Test Point
RW
Force
Current
RTOTAL
RH
CH
CW
CL RL
10pF
10pF
25pF
RW
A.C. CONDITIONS OF TEST
Input pulse levels
Input rise and fall times
Input reference levels
0.8V to 2.0V
10ns
1.4V
4
FN8184.1
September 14, 2005
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