User guide

MAX5128
128-Tap, Nonvolatile, Linear-Taper Digital
Potentiometer in 2mm x 2mm µDFN Package
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.7V to +5.25V, H = V
CC
, L = GND, T
A
= -40°C to +85°C. Typical values are at V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
(Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
NONVOLATILE MEMORY RELIABILITY
Data Retention T
A
= +85°C 50
Years
T
A
= +25°C
80,000
Endurance
T
A
= +85°C
50,000
Stores
POWER SUPPLY
Supply Voltage V
CC
2.70 5.25
V
Average Programming Current I
PG
During nonvolatile write only;
digital inputs = V
CC
or GND
220
400 µA
Peak Programming Current I
PK
During nonvolatile write only;
digital inputs = V
CC
or GND
4mA
Standby Current I
CC
Digital inputs = V
CC
or GND, T
A
= +25°C 0.5 1.5 µA
TIMING CHARACTERISTICS
(V
CC
= +2.7V to +5.25V, H = V
CC
, L = GND, T
A
= -40°C to +85°C. Typical values are at V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
(See Figures 1, 2, 3, and 4).
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SECTION
Wiper Settling Time t
S
(Note 7)
500
ns
DIGITAL SECTION
UP or DN Pulse-Width High t
PWH
80 ns
UP or DN Pulse-Width Low t
PWL
80 ns
UP or DN Glitch Immunity t
IMMU
20 ns
UP Fall to DN Rise Setup or DN
Fall to UP Rise Setup
t
MS1
80 ns
Before Entering NVM-Write
Mode, UP Fall to UP Rise
t
MS2
80 ns
UP Rise to DN Rise Setup when
Entering NVM-Write
t
WS
80 ns
UP Fall to DN Fall Hold or DN Fall
to UP Fall Hold during NVM-
Write
t
WH
0ns