MAX5438EUB+ Maxim Integrated Products, MAX5438EUB+ Datasheet - Page 4

• Manufacturer Part Number: MAX5438EUB+
• Description: IC DGTL POT 128-TAP 15V 10-UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX5438EUB+

• Taps: 128
• Resistance (ohms): 100K
• Number Of Circuits: 1
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 10 V ~ 30 V, ±5 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Resistance In Ohms: 100K
• Number Of Pots: Single
• Taps Per Pot: 128
• Resistance: 900 Ohms
• Wiper Memory: Volatile
• Digital Interface: Serial (3-Wire, SPI)
• Operating Supply Voltage: 2.7 V to 5.25 V
• Supply Current: 60 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: High Voltage ñ15V, 128-Tap, Low-Drift Digital Potentiometers
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 2.7 V
• Tolerance: 25 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

±15V, 128-Tap, Low-Drift Digital Potentiometers
ELECTRICAL CHARACTERISTICS (continued)
(V
T
4
Note 1: The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = V
Note 2: The DNL and INL are measured with the potentiometer configured as a variable resistor. H is unconnected and L = V
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
Note 5: Guaranteed by design and characterization.
(V
Analog Supply Separation
Digital Supply Voltage
Digital Supply to Negative Analog
Supply Separation
Power-On Reset Threshold
Digital Supply Current
Positive Analog Supply Current
Negative Analog Supply Current
A
DD
DD
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
= +15V, V
= +15V, V
0
wiper terminal is unloaded.
The wiper terminal is driven with a source current of 80µA for the 50k configuration and 40µA for the 100k configuration.
(V
PARAMETER
CC
vs. DIGITAL INPUT VOLTAGE
1
- 0.5V) and (GND + 0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics section.
DIGITAL INPUT VOLTAGE (V)
SS
SS
SUPPLY CURRENT
= -15V, V
= -15V, V
2
3
CC
CC
= +5V, V
= +5V, V
4
SYMBOL
POR
V
V
V
I
I
H
I
5
CC
DD
SS
CC
DS
CS
= V
H
= V
DD
1100
1075
1050
1025
1000
975
950
925
900
875
850
DD
, V
V
V
(Note 4)
MAX5436/MAX5438
SHDN = GND for MAX5437/MAX5439
SHDN = V
MAX5436/MAX5438
SHDN = GND for MAX5437/MAX5439
SHDN = V
DD
CC
L
, V
0
= V
WIPER RESISTANCE vs. INPUT CODE
CONDITIONS OF NOTE 2
L
- V
- V
16
= V
SS
SS
SS
, T
32
CC
CC
SS
A
, T
= +25°C, unless otherwise noted.)
48
INPUT CODE
CONDITIONS
A
= -40°C to +85°C, unless otherwise noted. Typical values are at
64
Typical Operating Characteristics
80
96
112
128
3000
2800
2600
2400
2200
2000
1800
1600
1400
1200
1000
0
2.70
MIN
9.0
2.7
WIPER RESISTANCE vs. INPUT CODE
V
V
CONDITIONS OF NOTE 2
DD
SS
16
= -5V
= +5V
32
DD
TYP
105
130
1.6
30
30
55
48
INPUT CODE
and L = V
64
MAX
31.5
5.25
31.5
215
110
250
80
50
60
SS
96
. The
UNITS
112
SS
µA
µA
µA
V
V
V
V
.
128