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| X9319 Datasheet, PDF (4/10 Pages) Xicor Inc. – Digitally Controlled Potentiometer (XDCP) | |||
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X9319
D.C. OPERATING CHARACTERISTICS
(VCC = 5V ±10%, TA = Full Operating Temperature Range unless otherwise stated)
Limits
Symbol
Parameter
Min. Typ.(4) Max. Unit
Test Conditions
ICC
VCC active current (Increment)
ISB
Standby supply current
ILI
CS, INC, U/D input leakage
current
1
300
-10
3
1000
+10
mA CS = VIL, U/D = VIL or VIH and
INC = 0.4V/2.4V @ min. tCYC
RL, RH, RW not connected
µA CS ⥠2.4V, U/D and INC = 0.4V
RL, RH, RW not connected
µA VIN = VSS to VCC
VIH
CS, INC, U/D input HIGH voltage 2
VIL
CS, INC, U/D input LOW voltage â1
CIN(5) CS, INC, U/D input capacitance
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))âV(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))â(V(RW(n)) â MI)]/MI
(3) 1 Ml = Minimum Increment = [V(RH)âV(RL)]/99.
(4) Typical values are for TA = 25°C and nominal supply voltage.
(5) Guaranteed by device characterization.
(6) Ratiometric temperature coefï¬cient = (V(RW)T1(n)âV(RW)T2(n))/[V(RW)T1(n)(T1âT2) 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
RL
CH
CW
CL
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
REV 1.7 7/10/03
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