MAX5403 Maxim, MAX5403 Datasheet
MAX5403
Manufacturer Part Number
MAX5403
Description
Dual 256-Tap / Low-Drift / Digital Potentiometers in 10-MAX
Manufacturer
Maxim
Datasheet
1.MAX5403.pdf
(10 pages)
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The MAX5403/MAX5404/MAX5405 is a family of dual
linear taper digital potentiometers. Each device has one
3-terminal potentiometer and one 2-terminal variable
resistor (Figure 1). The MAX5403/MAX5404/MAX5405
operate from +2.7V to +5.5V single-supply voltages
and use an ultra-low supply current of 0.1µA. These
devices also provide glitchless switching between
resistors taps as well as a convenient power-on reset
(POR) that sets the wiper to the midscale position at
power-up. The potentiometer consists of a fixed resistor
with a wiper contact that is digitally controlled through a
3-wire serial interface and has 256-tap points. It per-
forms the same function as a discrete potentiometer or
variable resistor.
These parts are ideal for applications requiring digitally
controlled resistors. Three resistance values are avail-
able: 10kΩ (MAX5403), 50kΩ (MAX5404), and 100kΩ
(MAX5405). A nominal resistor-temperature coefficient
of 35ppm/°C end-to-end and 5ppm/°C ratiometric make
the MAX5403/MAX5404/MAX5405 ideal for applications
requiring low temperature-coefficient variable resistors,
such as adjustable-gain circuit configurations.
The MAX5403/MAX5404/MAX5405 are available in a 10-
pin µMAX package. Each device is guaranteed over the
extended industrial temperature range (-40°C to +85°C).
19-1934; Rev 1; 4/01
SPI is a registered trademark of Motorola, Inc.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Mechanical Potentiometer Replacement
Low-Drift Programmable Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage Reference
Programmable Filters, Delays, Time Constant
Impedance Matching
________________________________________________________________ Maxim Integrated Products
General Description
Digital Potentiometers in 10-µMAX
Applications
Dual 256-Tap, Low-Drift,
o 10-Pin µMAX Small Footprint Package
o 256-Tap Positions
o Ultra Low 0.1µA Supply Current
o +2.7V to +5.5V Single-Supply Operation
o Low End-To-End Temperature Coefficient:
o Low Ratiometric Temperature Coefficient:
o Power-On Reset: Wiper Goes to Midscale
o Glitchless Switching Between Resistor Taps
o 3-Wire SPI™ -Interface Compatible
o 10kΩ/50kΩ/100kΩ Resistor Values
MAX5403EUB
MAX5404EUB
MAX5405EUB
(Position 128)
TOP VIEW
35ppm/°C
5ppm/°C
PART
GND
W
CS
H
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
L
TEMP RANGE
B
B
B
1
2
3
4
5
Ordering Information
MAX5403
MAX5404
MAX5405
µMAX
Pin Configuration
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
10
9
8
7
6
L
W
V
SCLK
DIN
A
DD
A
Features
R (kΩ)
100
10
50
1
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