MAX5414EUD+ Maxim Integrated Products, MAX5414EUD+ Datasheet

IC DGTL POT DUAL 256-TAP 14TSSOP

MAX5414EUD+

Manufacturer Part Number
MAX5414EUD+
Description
IC DGTL POT DUAL 256-TAP 14TSSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5414EUD+

Taps
256
Resistance (ohms)
50K
Number Of Circuits
2
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Volatile
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
50K
Number Of Pots
Dual
Taps Per Pot
256
Resistance
275 Ohms
Wiper Memory
Volatile
Digital Interface
Serial (3-Wire, SPI)
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
5 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
Dual 256-Tap, Low Drift, Digital Potentiometers in 14-TSSOP
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Tolerance
25 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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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MAX5414EUD+ Summary of contents

Page 1

... Adjustable Voltage Reference Programmable Filters, Delays, Time Constant Impedance Matching SPI is a trademark of Motorola, Inc. ________________________________________________________________ Maxim Integrated Products 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. o 14-Pin TSSOP Small-Footprint Package o 256 Tap Positions o Ultra-Low 0.1µ ...

Page 2

Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD DIN, SCLK, CS .........................................................-0. GND ........................................-0. Maximum Continuous Current ...

Page 3

Dual, 256-Tap, Low-Drift, Digital Potentiometers ELECTRICAL CHARACTERISTICS (continued +5V, unless otherwise noted unless otherwise noted.) PARAMETER SYMBOL DIGITAL INPUTS Input High Voltage Input Low Voltage Input Leakage Current Input Capacitance TIMING CHARACTERISTICS (ANALOG) Wiper-Settling Time TIMING ...

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

Dual, 256-Tap, Low-Drift, Digital Potentiometers PIN NAME 1 GND Ground 2 L Low Terminal of Resistor High Terminal of Resistor Wiper Terminal of Resistor N.C. No Connection ...

Page 8

Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP 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 ...

Page 9

Dual, 256-Tap, Low-Drift, Digital Potentiometers ADDRESS B0 (A0) B1 (D7) B2 (D6) (MSB) First Bit In Figure 4. Serial Data Format +5V MAX4250 ...

Page 10

Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP +5V VIN OUT H X MAX5413 W X MAX5414 ADJ MAX5415 GND L X Ω / (100kΩ V REF = 12.3kV ✕ ✕ 255) FOR MAX5413 O Ω / (50kΩ ...

Page 11

... 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 notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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