MAX5413 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP

19-1943; Rev 0; 1/01
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOP
General Description
The MAX5413/MAX5414/MAX5415 is a family of dual
linear taper digital potentiometers. Each device has two
3-terminal potentiometers. The MAX5413/MAX5414/
MAX5415 operate from +2.7V to +5.5V single-supply
voltages and use an ultra-low 0.1µA supply current.
These devices also provide glitchless switching
between resistor taps, as well as a convenient power-
on reset (POR) that sets the wiper to the midscale posi-
tion at power-up. Each 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 performs the same function as a discrete potentiome-
ter or variable resistor.
These parts are ideal for applications requiring digitally
controlled resistors. Three resistance values are avail-
able: 10kΩ (MAX5413), 50kΩ (MAX5414), and 100kΩ
(MAX5415). A nominal resistor temperature coefficient
of 35ppm/°C end-to-end and 5ppm/°C ratiometric make
the MAX5413/MAX5414/MAX5415 ideal for applications
requiring low temperature-coefficient variable resistors,
such as adjustable-gain circuit configurations.
The MAX5413/MAX5414/MAX5415 are available in a 14-
pin TSSOP package. Each device is guaranteed over the
extended industrial temperature range (-40°C to +85°C).
Applications
Mechanical Potentiometer Replacement
Low-Drift Programmable Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage Reference
Programmable Filters, Delays, Time Constant
Impedance Matching
Features
o 14-Pin TSSOP Small-Footprint Package
o 256 Tap Positions
o Ultra-Low 0.1µA Supply Current
o +2.7V to +5.5V Single-Supply Operation
o Two Independent Potentiometers in a Package
o Low End-to-End Temperature Coefficient
35ppm/°C
o Low Ratiometric Temperature Coefficient
5ppm/°C
o Power-On Reset: Wiper Goes to Midscale
(Position 128)
o Glitchless Switching Between Resistor Taps
o 3-Wire SPI™-Interface Compatible
o 10kΩ/50kΩ/100kΩ Resistor Values
Ordering Information
PART
MAX5413EUD
MAX5414EUD
MAX5415EUD
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 TSSOP
14 TSSOP
14 TSSOP
R (kΩ)
10
50
100
Pin Configuration
SPI is a trademark of Motorola, Inc.
TOP VIEW
GND 1
L_B 2
H_B 3
W_B 4
N.C. 5
N.C. 6
CS 7
MAX5413
MAX5414
MAX5415
14 L_A
13 H_A
12 W_A
11 V_DD
10 N.C.
9 SCLK
8 DIN
TSSOP
________________________________________________________________ Maxim Integrated Products 1
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