MAX5413 MAXIM [Maxim Integrated Products], MAX5413 Datasheet

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MAX5413

Manufacturer Part Number
MAX5413
Description
Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

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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).
19-1943; Rev 0; 1/01
Dual, 256-Tap, Low-Drift, Digital Potentiometers
SPI is a trademark of Motorola, Inc.
For price, delivery, and to place orders, please contact Maxim Distribution 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
Applications
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
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
MAX5413EUD
MAX5414EUD
MAX5415EUD
(Position 128)
35ppm/°C
5ppm/°C
PART
TOP VIEW
GND
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
N.C.
N.C.
in 14-Pin TSSOP
W
CS
H
L
B
B
B
1
2
3
4
5
6
7
Ordering Information
MAX5413
MAX5414
MAX5415
TSSOP
Pin Configuration
PIN-PACKAGE
14 TSSOP
14 TSSOP
14 TSSOP
14
13
12
11
10
8
9
L
H
W
V
N.C.
SCLK
DIN
A
DD
A
A
Features
R (kΩ)
100
10
50
1

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MAX5413 Summary of contents

Page 1

... 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 ...

Page 2

... MAX5415 MAX5413 MAX5414 MAX5415 +5V DD MAX5413 V = +3V MAX5414 DD MAX5415 +3V DD MAX5413 W MAX5414/MAX5415 MAX5413 MAX5414 HL MAX5415 . Typical values are +5V MIN TYP MAX 8 ±1/2 ±1 -1.6 0.8 +8 +1.6 +0.8 8 ±1 ±3 ±1.5 ±1.5 ±1/2 275 550 ...

Page 3

... At V respectively. Note 4: The wiper resistance is the worst value measured by injecting into W Note 5: Digital timing is guaranteed by design. _______________________________________________________________________________________ = MIN MAX CONDITIONS MAX5413 t MAX5414 S MAX5415 CSS t CSH CS0 ...

Page 4

Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP (V = +5.0V +25°C, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE (10kΩ) 300 280 V = +3V 260 DD 240 220 V = +5V 200 DD 180 ...

Page 5

Dual, 256-Tap, Low-Drift, Digital Potentiometers (V = +5.0V +25°C, unless otherwise noted VARIABLE RESISTOR INL vs. INPUT CODE (50kΩ) 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 14-Pin TSSOP (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 ...

Page 7

... GND 9-BIT DIN SHIFT REGISTER SCLK DECODE CS Figure 1. MAX5413/MAX5414/MAX5415 Functional Diagram: Dual 3-Terminal Potentiometers in 14-Pin TSSOP Configuration Detailed Description Each potentiometer consists of 255 fixed resistors in series between pins H and L (Figure 1). The poten tiometer wiper (pin W ) can be programmed to access X any one of the 256 different tap points on the resistor string ...

Page 8

... In Figure 6a, connect the MAX5413/ MAX5414/MAX5415 as a variable resistor in series with a resistor to ground to form the adjustable gain control of a noninverting amplifier. Similarly, Figure 6b shows how to use the MAX5413/ MAX5414/MAX5415 as a 3-terminal potentiometer. In this application, the MAX5413/MAX5414/MAX5415 low 5ppm/°C ratiometric tempco allows for a very stable adjustable gain configuration over temperature ...

Page 9

... OUT pin of the MAX6160, the L X MAX5414/MAX5415 is connected to GND, and the W pin of the MAX5413/MAX5414/MAX5415 is connected to the ADJ pin of the MAX6160. The MAX5413/ MAX5414/MAX5415 allow precise setting of the voltage reference output. A low 5ppm/°C ratiometric tempco allows a very stable adjustable voltage overtemperature. ...

Page 10

... H X MAX5413 W X MAX5414 ADJ MAX5415 GND L X Ω / (100kΩ V REF = 12.3kV ✕ ✕ 255) FOR MAX5413 O Ω / (50kΩ V REF = 61.5kV ✕ ✕ 255) FOR MAX5414 O Ω / (100kΩ V REF = 123kV ✕ ✕ 255) FOR MAX5415 O WHERE C IS ANY CODE BEING WRITTEN TO A DEVICE. ...

Page 11

Dual, 256-Tap, Low-Drift, Digital Potentiometers Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without ...

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