MAX5393NAUD+ Maxim Integrated Products, MAX5393NAUD+ Datasheet - Page 10
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MAX5393NAUD+
Manufacturer Part Number
MAX5393NAUD+
Description
IC POT DGTL DUAL 256TAP 14TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5391LATET.pdf
(14 pages)
Specifications of MAX5393NAUD+
Taps
256
Resistance (ohms)
100K
Number Of Circuits
2
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Volatile
Interface
SPI, 3-Wire Serial
Voltage - Supply
1.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
100K
Number Of Pots
Dual
Taps Per Pot
256
Resistance
200 Ohms
Wiper Memory
Volatile
Digital Interface
Serial (3-Wire, SPI)
Operating Supply Voltage
1.7 V to 5.5 V
Supply Current
27 uA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Description/function
Dual Volatile Low Voltage Linear Taper Digital Potentiometer
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.7 V
Tolerance
25 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
Figure 3. SPI Timing Diagram
REG A: The data byte writes to register A, and the wiper
of potentiometer A moves to the appropriate position at
the rising edge of CS. D[7:0] indicates the position of the
wiper. D[7:0] = 00h moves the wiper to the position clos-
est to LA. D[7:0] = FFh moves the wiper closest to HA.
D[7:0] is 80h following power-on.
REG B: The data byte writes to register B, and the wiper
of potentiometer B moves to the appropriate position at
the rising edge of CS. D[7:0] indicates the position of the
wiper. D[7:0] = 00h moves the wiper to the position clos-
est to LB. D[7:0] = FFh moves the wiper to the position
closest to HB. D[7:0] is 80h following power-on.
REG A and B: The data byte writes to registers A and
B, and the wipers of potentiometers A and B move to the
appropriate position. D[7:0] indicates the position of the
wiper. D[7:0] = 00h moves the wiper to the position clos-
est to L_. D[7:0] = FFh moves the wiper to the position
closest to H_. D[7:0] is 80h following power-on.
10
DIN
SCLK
_____________________________________________________________________________________
CS
t
CSO
t
CSS
t
DS
t
DH
t
CL
t
CH
Figure 4 shows a potentiometer adjusting the gain of a
noninverting amplifier. Figure 5 shows a potentiometer
adjusting the gain of an inverting amplifier.
Figure 6 shows an adjustable dual linear regulator using
a dual potentiometer as two variable resistors.
Figure 7 shows an adjustable voltage reference circuit
using a potentiometer as a voltage divider.
t
CP
Applications Information
Adjustable Voltage Reference
Adjustable Dual Regulator
Variable Gain Amplifier
t
CSH
t
CS1
t
CSW