MAX5483EUD+ Maxim Integrated Products, MAX5483EUD+ Datasheet - Page 12

• Manufacturer Part Number: MAX5483EUD+
• Description: IC DGTL POT 10BIT NV 14-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5483EUD+

• Taps: 1024
• Resistance (ohms): 10K
• Number Of Circuits: 1
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.25 V, ±2.5 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP
• Resistance In Ohms: 10K
• Number Of Pots: Single
• Taps Per Pot: 1024
• Resistance: 10 KOhms
• Wiper Memory: Non Volatile
• Buffered Wiper: Buffered
• Digital Interface: 3-Wire (SPI)
• Operating Supply Voltage: 2.7 V to 5.25 V
• Supply Current: 400 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: 1024-Tap 10k Nonvolatile Linear-Taper Digital Potentiometer (Variable Resistor)
• 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

The MAX5481/MAX5482 linear programmable voltage-
dividers and the MAX5483/MAX5484 variable resistors
feature 1024 tap points (10-bit resolution) (see the
Functional Diagrams ). These devices consist of multi-
ple strings of equal resistor segments with a wiper con-
tact that moves among the 1024 points through a
pin-selectable 3-wire SPI-compatible serial interface or
up/down interface. The MAX5481/MAX5483 provide a
total end-to-end resistance of 10kΩ, and the
MAX5482/MAX5484 have an end-to-end resistance of
50kΩ. The MAX5481/MAX5482 allow access to the
high, low, and wiper terminals for a standard voltage-
divider configuration.
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
12
______________________________________________________________________________________
SCLK(INC)
DIN(U/D)
GND
CS
V
V
DD
SS
Detailed Description
INTERFACE
INTERFACE
UP/DOWN
SPI
MEMORY
10-BIT
NV
POR
10-BIT
LATCH
MUX
The MAX5481/MAX5482 programmable voltage-
dividers provide a weighted average of the voltage
between the H and L inputs at the W output. Both
devices feature 10-bit resolution and provide up to
1024 tap points between the H and L voltages. Ideally,
the V
data bits are zero and the V
wiper terminal when all data bits are one. The step size
(1 LSB) voltage is equal to the voltage applied across
terminals H and L divided by 2
voltage V
Functional Diagrams (continued)
10
V
L
W
voltage occurs at the wiper terminal (W) when all
( ) =
D
DECODER
W
MAX5481/MAX5482 Programmable
as follows:
D
⎡
⎢
⎢
⎢
⎣
MAX5483
MAX5484
V
HL
10
−
(
⏐
V
FSE
1023
⏐ ⏐
+
V
H
ZSE
10
voltage occurs at the
. Calculate the wiper
Voltage-Dividers
⏐
)
⎤
⎥
⎥
⎥
⎦
+
L
H
V
SPI/UD
L
+
⏐
V
ZSE
⏐