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| CAT5120 Datasheet, PDF (3/12 Pages) Catalyst Semiconductor – 16-Tap MiniPot Digitally Programmable Potentiometers with 2-Wire Interface | |||
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ELECTRICAL CHARACTERISTICS (continued)
Parameter
Symbol
Timing Characteristics (Figures 1, 2)
U/D¯ Mode to C¯¯S Setup
C¯¯S to U/D¯ Step Setup
C¯¯S to U/D¯ Step Hold
U/D¯ Step Low Period
U/D¯ Step High Period
Up/¯D¯o¯w¯n¯ Toggle Rate(1)
tCU
tCI
tIC
tIL
tIH
fTOGGLE
Output Settling Time (2)
tSETTLE
Power Supply
Supply Voltage
VDD
Active Supply Current (3)
IDD
Standby Supply Current (4)
ISB
Conditions
100 k⦠variable resistor
configuration, CL = 10 pF
100 k⦠potentiometer
configuration, CL = 10 pF
VDD = +5 V
TYPICAL OPERATING CHARACTERISTICS
TA = 25ºC, unless otherwise noted.
CAT5120, CAT5121, CAT5122
Min
Typ
Max Units
25
50
25
25
25
1
1
0.25
ns
ns
ns
ns
ns
MHz
μs
2.7
5.5
V
25
µA
0.3
1
µA
VDD= 2.7V
50K
VDD= 5.5V
0 4 8 12 16 20 24 28 32
WIPER POSITION
VDD= 5.5V
VDD= 2.7V
TEMPERATURE (ºC)
TEMPERATURE (ºC)
Notes:
1
(1) Up/Down Toggle Rate: fTOGGLE = tSETTLE
(2) Typical settling times are dependent on end-to-end resistance.
(3) Supply current measured while changing wiper tap, fTOGGLE = 1 MHz.
(4) Supply current measured while wiper position is fixed.
© 2009 SCILLC. All rights reserved.
3
Characteristics subject to change without notice
Doc. No. MD-2121 Rev. G
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