Storage Temperature Range ............................
-65°C to +150°C
Lead Temperature (soldering, 10s) .................................
+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(V
DD
= +1.7V to +5.5V, V
H_
= V
DD
, V
L_
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= +1.8V,
T
A
= +25°C.) (Note 1)
PARAMETER
Resolution
Integral Nonlinearity
Differential Nonlinearity
Dual-Code Matching
Ratiometric Resistor Tempco
Full-Scale Error
SYMBOL
N
INL
DNL
(Note 2)
(Note 2)
Register A = Register B
(ΔV
W
/V
W
)/ΔT, no load
MAX5391L/MAX5393L
Code = FFh
MAX5391M/MAX5393M
MAX5391N/MAX5393N
MAX5391L/MAX5393L
Zero-Scale Error
DC PERFORMANCE (Variable Resistor Mode)
MAX5391L/MAX5393L
Integral Nonlinearity (Note 3)
Differential Nonlinearity
Wiper Resistance
Terminal Capacitance
Wiper Capacitance
End-to-End Resistor Tempco
End-to-End Resistor Tolerance
AC PERFORMANCE
Crosstalk
-3dB Bandwidth
Total Harmonic Distortion Plus Noise
BW
THD+N
(Note 5)
Code = 80H,
10pF load,
V
DD
= 1.8V
MAX5391L/MAX5393L
MAX5391M/MAX5393M
MAX5391N/MAX5393N
-90
600
100
50
0.02
%
kHz
dB
R-INL
R-DNL
R
WL
C
H_
, C
L_
C
W_
TC
R
ΔR
HL
MAX5391M/MAX5393M
MAX5391N/MAX5393N
(Note 3)
(Note 4)
Measured to GND
Measured to GND
No load
Wiper not connected
-25
10
50
35
+25
DC PERFORMANCE (Resistor Characteristics)
200
Ω
pF
pF
ppm/°C
%
-1.5
-0.75
-0.5
-0.5
+1.5
+0.75
+0.5
+0.5
LSB
LSB
Code = 00h
MAX5391M/MAX5393M
MAX5391N/MAX5393N
-3
-1
-0.5
CONDITIONS
MIN
256
-0.5
-0.5
-0.5
5
-2.2
-0.6
-0.3
2.2
0.6
0.3
3
1
0.5
LSB
LSB
+0.5
+0.5
+0.5
TYP
MAX
UNITS
Tap
LSB
LSB
LSB
ppm/°C
DC PERFORMANCE (Voltage-Divider Mode)
Measured at W, V
H_
= 1V
RMS
at 1kHz
www.maximintegrated.com
Maxim Integrated │
2
MAX5391/MAX5393
Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
Electrical Characteristics (continued)
(V
DD
= +1.7V to +5.5V, V
H_
= V
DD
, V
L_
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= +1.8V,
T
A
= +25°C.) (Note 1)
PARAMETER
Wiper Settling Time (Note 6)
Charge-Pump Feedthrough at W_
POWER SUPPLIES
Supply Voltage Range
Standby Current
DIGITAL INPUTS
Minimum Input High Voltage
Maximum Input Low Voltage
Input Leakage Current
Input Capacitance
TIMING CHARACTERISTICS—SPI (Note 7)
SCLK Frequency
SCLK Clock Period
SCLK Pulse-Width High
SCLK Pulse-Width Low
CS
Fall to SCK Rise Setup Time
SCLK Rise to
CS
Rise Hold Time
DIN Setup Time
DIN Hold Time
SCLK Rise to
CS
Fall Delay
SCLK Rise to SCLK Rise Hold Time
CS Pulse-Width High
f
MAX
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
CS0
t
CS1
t
CSW
100
40
40
40
0
40
0
10
40
100
10
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
IH
V
IL
V
DD
= 2.6V to 5.5V
V
DD
= 1.7V to 2.6V
V
DD
= 2.6V to 5.5V
V
DD
= 1.7V to 2.6V
-1
5
70
75
30
25
+1
% x V
DD
% x V
DD
µA
pF
V
DD
V
DD
= 5.5V
V
DD
= 1.7V
1.7
27
12
5.5
V
µA
SYMBOL
t
S
V
RW
CONDITIONS
MAX5391L/MAX5393L
MAX5391M/MAX5393M
MAX5391N/MAX5393N
f
CLK
= 600kHz, C
OUT
= 0nF
MIN
TYP
400
1200
2200
200
nV
P-P
ns
MAX
UNITS
Note 1:
All devices are 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by design and
characterization.
Note 2:
DNL and INL are measured with the potentiometer configured as a voltage-divider (Figure 1) with H_ = V
DD
and L_ = GND.
The wiper terminal is unloaded and measured with a high-input-impedance voltmeter.
Note 3:
R-DNL and R-INL are measured with the potentiometer configured as a variable resistor (Figure 1). DNL and INL are mea-
sured with the potentiometer configured as a variable resistor. H_ is unconnected and L_ = GND. For V
DD
= +5V, the wiper
terminal is driven with a source current of 400µA for the 10kΩ configuration, 80µA for the 50kΩ configuration, and 40µA for
the 100kΩ configuration. For V
DD
= +1.7V, the wiper terminal is driven with a source current of 150µA for the 10kΩ configu-
ration, 30µA for the 50kΩ configuration, and 15µA for the 100kΩ configuration.
Note 4:
The wiper resistance is the value measured by injecting the currents given in Note 3 into W_ with L_ = GND.
R
W_
= (V
W_
- V
H_
)/I
W_
.
Note 5:
Drive HA with a 1kHz GND to V
DD
amplitude tone. LA = LB = GND. No load. WB is at midscale with a 10pF load. Measure
WB.
Note 6:
The wiper-settling time is the worst-case 0 to 50% rise time, measured between tap 0 and tap 127. H_ = V
DD
, L_ = GND,
and the wiper terminal is loaded with 10pF capacitance to ground.
Note 7:
Digital timing is guaranteed by design and characterization, not production tested.
www.maximintegrated.com
Maxim Integrated │
3
MAX5391/MAX5393
Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
H
N.C.
W
W
L
L
Figure 1. Voltage-Divider and Variable Resistor Configurations
stm32/stm8
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