MAX5393NAUD+ Maxim Integrated Products, MAX5393NAUD+ Datasheet - Page 10

• Manufacturer Part Number: MAX5393NAUD+
• Description: IC POT DGTL DUAL 256TAP 14TSSOP
• Manufacturer: Maxim Integrated Products

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