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
= +2.6V to +5.5V, V
H_
= V
DD
, V
L_
= 0V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
DD
= +5V,
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
MAX5389L
Code = FFH
MAX5389M
MAX5389N
MAX5389L
Zero-Scale Error
Code = 00H
MAX5389M
MAX5389N
DC PERFORMANCE (Variable-Resistor Mode) (Note 3)
MAX5389L
V
DD
> +2.6V
Integral Nonlinearity
R-INL
V
DD
> +4.75V
Differential Nonlinearity
R-DNL
V
DD
≥ 2.6V
V
DD
> 2.6V
V
DD
> 4.75V
Measured to GND
Measured to GND
No load
Wiper not connected
-25
MAX5389M
MAX5389N
MAX5389L
MAX5389M
MAX5389N
-0.5
250
150
10
50
35
+25
DC PERFORMANCE (Resistor Characteristics)
Wiper Resistance (Note 4)
Terminal Capacitance
Wiper Capacitance
End-to-End Resistor Tempco
End-to-End Resistor Tolerance
R
WL
C
H_
, C
L_
C
W_
TC
R
ΔR
HL
600
200
Ω
pF
pF
ppm/°C
%
±1.0
±0.5
±0.25
±0.4
±0.3
±0.25
±2.5
±1.0
±0.8
±1.5
±0.75
±0.5
+0.5
LSB
LSB
-3
-1
-0.5
CONDITIONS
MIN
256
-0.5
-0.5
-0.5
+5
-2.5
-0.5
-0.25
+2.5
+0.5
+0.25
+3
+1.0
+0.5
LSB
LSB
+0.5
+0.5
+0.5
TYP
MAX
UNITS
Taps
LSB
LSB
LSB
LSB
DC PERFORMANCE (Voltage-Divider Mode)
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Maxim Integrated
│
2
MAX5389
Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometer
Electrical Characteristics (continued)
(V
DD
= +2.6V to +5.5V, V
H_
= V
DD
, V
L_
= 0V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
DD
= +5V,
T
A
= +25°C.) (Note 1)
PARAMETER
AC PERFORMANCE
Crosstalk
-3dB Bandwidth
Total Harmonic Distortion Plus
Noise
Wiper Settling Time (Note 6)
POWER SUPPLIES
Supply Voltage Range
Standby Current
DIGITAL INPUTS
Minimum Input High Voltage
Maximum Input Low Voltage
Input Leakage Current
Input Capacitance
TIMING CHARACTERISTICS (Note 7)
Maximum
INC_
Frequency
CS
to
INC_
Setup Time
CS
to
INC_
Hold Time
INC_
Low Period
INC_
High Period
UD_ to
INC_
Setup Time
UD_ to
INC_
Hold Time
f
MAX
t
CI
t
IC
t
IL
t
IH
t
DI
t
ID
25
0
25
25
50
0
10
MHz
ns
ns
ns
ns
ns
ns
V
IH
V
IL
-1
5
70
30
+1
% x V
DD
% x V
DD
µA
pF
V
DD
Digital inputs = V
DD
or GND
2.6
1
5.5
V
µA
BW
(Note 5)
MAX5389L
Code = 80H, 10pF load,
MAX5389M
V
DD
= +2.6V
MAX5389N
Measured at W, V
H_
= 1V
RMS
at 1kHz
MAX5389L
t
S
MAX5389M
MAX5389N
-90
600
150
75
0.015
300
1000
2000
ns
%
kHz
dB
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
THD+N
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 potentiometer configured as a variable resistor. H_ is unconnected and L_ = GND. For V
DD
= +5V, the wiper ter-
minal 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
= +2.6V, the wiper terminal is driven with a source current of 200μA for the 10kΩ configuration,
40μA for the 50kΩ configuration, and 20μA for the 100kΩ configuration.
Note 4:
The wiper resistance is the worst 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
MAX5389
Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometer
H
N.C.
W
W
L
L
Figure 1. Voltage-Divider and Variable Resistor Configurations
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