max5405eubt Maxim Integrated Products, Inc., max5405eubt Datasheet

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max5405eubt

Manufacturer Part Number
max5405eubt
Description
Dual, 256-tap, Low-drift, Digital Potentiometers In 10-?max
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
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: 10k
(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
extended industrial temperature range (-40°C to +85°C).
19-1934; Rev 2; 11/05
SPI is a registered trademark of Motorola, Inc.
µMAX is a registered trademark of Maxim Integrated
Products, 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
®
package. Each device is guaranteed over the
(MAX5403), 50k
________________________________________________________________ Maxim Integrated Products
General Description
(MAX5404), and 100k
Digital Potentiometers in 10-µMAX
Applications
Dual 256-Tap, Low-Drift,
♦ 10-Pin µMAX Small Footprint Package
♦ 256-Tap Positions
♦ Ultra Low 0.1µA Supply Current
♦ +2.7V to +5.5V Single-Supply Operation
♦ Low End-To-End Temperature Coefficient:
♦ Low Ratiometric Temperature Coefficient:
♦ Power-On Reset: Wiper Goes to Midscale
♦ Glitchless Switching Between Resistor Taps
♦ 3-Wire SPI™ -Interface Compatible
♦ 10k /50k /100k Resistor Values
Note: All devices operate over the -40°C to +85°C temperature
range.
MAX5403EUB
MAX5404EUB
MAX5405EUB
(Position 128)
TOP VIEW
35ppm/°C
5ppm/°C
PART
GND
W
CS
H
L
B
B
B
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
1
2
3
4
5
Ordering Information
MAX5403
MAX5404
MAX5405
MAX
Pin Configuration
10
9
8
7
6
(k )
100
L
W
V
SCLK
DIN
10
50
R
A
DD
A
Features
U10C-4
U10C-4
U10C-4
CODE
PKG
1

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max5405eubt Summary of contents

Page 1

Rev 2; 11/05 Digital Potentiometers in 10-µMAX General Description 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 ...

Page 2

Dual 256-Tap, Low-Drift, Digital Potentiometers in 10-µMAX ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD DIN, SCLK, CS .........................................................-0. GND .......................................-0. Maximum Continuous Current Into ...

Page 3

Digital Potentiometers in 10-µMAX ELECTRICAL CHARACTERISTICS (continued +5V, unless otherwise noted unless otherwise noted.) PARAMETER SYMBOL End-to-End Resistance DIGITAL INPUTS Input High Voltage Input Low Voltage Input Leakage Current Input Capacitance TIMING CHARACTERISTICS (ANALOG) Wiper-Settling Time ...

Page 4

Dual 256-Tap, Low-Drift, Digital Potentiometers in 10-µMAX (V = +5.0V +25°C, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE (50k ) 380 360 340 320 V = +3V DD 300 280 V = +5V DD 260 ...

Page 5

Digital Potentiometers in 10-µMAX (V = +5.0V +25°C, unless otherwise noted VARIABLE RESISTOR INL vs. INPUT CODE (50k ) 0.04 0.02 0.00 -0.02 -0.04 -0.06 -0.08 -0.10 -0.12 -0.14 -0. 128 160 ...

Page 6

Dual 256-Tap, Low-Drift, Digital Potentiometers in 10-µMAX (V = +5.0V +25°C, unless otherwise noted SUPPLY CURRENT vs. LOGIC INPUT VOLTAGE 10 1 0.1 0. +3V DD 0.001 0.0001 0 0.5 1.0 1.5 2.0 2.5 ...

Page 7

Digital Potentiometers in 10-µMAX PIN NAME 1 GND Ground 2 L Low Terminal of Resistor High Terminal of Resistor Wiper Terminal of Resistor SPI Chip Select 6 DIN ...

Page 8

Dual 256-Tap, Low-Drift, Digital Potentiometers in 10-µMAX CS SCLK 1ST CLOCK PULSE DIN TIME Figure 2. Potentiometer Serial Data Timing Circuit CSO CSS SCLK DIN Figure 3. Detailed Serial Interface Timing Diagram of ...

Page 9

Digital Potentiometers in 10-µMAX ADDRESS B0 (A0) B1 (D7) B2 (D6) (MSB) First Bit In Figure 4. Serial Data Format R3 W MAX5403 MAX5404 MAX5405 + ...

Page 10

... Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products BOTTOM VIEW E2 GAGE PLANE SIDE VIEW Printed USA is a registered trademark of Maxim Integrated Products, Inc. Package Information INCHES MILLIMETERS MAX MAX DIM MIN MIN A - 0.043 - 1. ...

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