
MAX5432–MAX5435
32-Tap, Nonvolatile, I2C, Linear, Digital
Potentiometers
4
_______________________________________________________________________________________
TIMING CHARACTERISTICS (continued)
(VDD = +2.7V to +5.25V, VH = VDD, VL = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5V, TA =
+25°C.) (Figures 1 and 2) (Note 1)
Typical Operating Characteristics
(VDD = +5V, TA = +25°C, unless otherwise noted.)
0
0.3
0.9
0.6
1.2
1.5
-40
10
-15
35
60
85
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5432–35
toc01
TEMPERATURE (
°C)
SUPPLY
CURRENT
(
A)
DIGITAL INPUTS = GND OR VDD
VDD = 5V
VDD = 3V
0
0.2
0.6
0.4
0.8
1.0
2.5
3.5
3.0
4.0
4.5
5.0
5.5
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5432–35
toc02
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(
A)
DIGITAL INPUTS = GND OR VDD
02
13
5
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5432–35
toc03
DIGITAL INPUT VOLTAGE (V)
SUPPLY
CURRENT
(
A)
1000
0.1
1
10
100
VDD = 5V
VDD = 3V
4
VV
V
WH
H
-
31
.
VV
V
WL
H
-
31
.
Note 2: The DNL and INL are measured with the potentiometer configured as a variable resistor. For the 3-terminal potentiometers
(MAX5432/MAX5433), H is unconnected and L = GND. At VDD = 5V, W is driven with a source current of 80A for the 50k
configuration, and 40A for the 100k
configuration. At VDD = 3V, W is driven with a source current of 40A for the 50k
configuration, and 20A for the 100k
configuration.
Note 3: The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = VDD and L = GND
(MAX5432/MAX5433 only). The wiper terminal is unloaded and measured with an ideal voltmeter.
Note 4: Full-scale error is defined as
Note 5: Zero-scale error is defined as
Note 6: The wiper resistance is the worst value measured by injecting the currents given in Note 2 into W with L = GND.
RW = (VW - VH) / IW.
Note 7: The device draws current in excess of the specified supply current when the digital inputs are driven with voltages between
(VDD - 0.5V) and (GND + 0.5V). See the Supply Current vs. Digital Input Voltage graph in the Typical Operating Characteristics.
Note 8: Wiper is at midscale with a 10pF capacitive load. Potentiometer set to midscale, L = GND, an AC source is applied to H,
and the output is measured as 3dB lower than the DC W/H value in dB.
Note 9: This is measured from the STOP pulse to the time it takes the output to reach 50% of the output step size (divider mode). It
is measured with a maximum external capacitive load of 10pF.
Note 10: The programming current exists only during NV writes (12ms typ).
Note 11: Digital timing is guaranteed by design and characterization, and is not production tested.
Note 12: An appropriate bus pullup resistance must be selected depending on board capacitance. Refer to the I
2C-bus specifica-
tion document linked to this web address: www.semiconductors.philips.com/acrobat/literature/9398/39340011.pdf
Note 13: The idle time begins from the initiation of the stop pulse.