MAX5436–MAX5439
±15V, 128-Tap, Low-Drift Digital Potentiometers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +15V, V
SS
= -15V, V
CC
= +5V, V
H
= V
DD
, V
L
= V
SS
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at
T
A
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Analog Supply Separation V
DS
V
DD
- V
SS
9.0 31.5 V
Digital Supply Voltage V
CC
2.70 5.25 V
Digital Supply to Negative Analog
Supply Separation
V
CS
V
CC
- V
SS
2.7 31.5 V
Power-On Reset Threshold POR 1.6 V
Digital Supply Current I
CC
(Note 4) 30 50 µA
MAX5436/MAX5438
SHDN = GND for MAX5437/MAX5439
30 60
Positive Analog Supply Current I
DD
SHDN = V
CC
105 215
µA
MAX5436/MAX5438
SHDN = GND for MAX5437/MAX5439
55 110
Negative Analog Supply Current I
SS
SHDN = V
CC
130 250
µA
Note 1: The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = V
DD
and L = V
SS
. The
wiper terminal is unloaded.
Note 2: The DNL and INL are measured with the potentiometer configured as a variable resistor. H is unconnected and L = V
SS
.
The wiper terminal is driven with a source current of 80µA for the 50kΩ configuration and 40µA for the 100kΩ configuration.
Note 3: The wiper resistance is measured assuming the source currents given in Note 2.
Note 4: The device draws current in excess of the specified supply current when the digital inputs are driven with voltages between
(V
CC
- 0.5V) and (GND + 0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics section.
Note 5: Guaranteed by design and characterization.
Typical Operating Characteristics
(V
DD
= +15V, V
SS
= -15V, V
CC
= +5V, V
H
= V
DD
, V
L
= V
SS
, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5436 toc01
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
4321
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
05
WIPER RESISTANCE vs. INPUT CODE
MAX5436 toc02
INPUT CODE
RESISTANCE (Ω)
1129664 8032 4816
875
900
925
950
975
1000
1025
1050
1075
1100
850
0 128
CONDITIONS OF NOTE 2
WIPER RESISTANCE vs. INPUT CODE
MAX5436 toc03
INPUT CODE
RESISTANCE (Ω)
1129664 8032 4816
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
1000
0 128
V
DD
= +5V
V
SS
= -5V
CONDITIONS OF NOTE 2
