MAX5429EUA+ Maxim Integrated Products, MAX5429EUA+ Datasheet

IC DGTL POT 1TIME PROGR 8-UMAX

MAX5429EUA+

Manufacturer Part Number
MAX5429EUA+
Description
IC DGTL POT 1TIME PROGR 8-UMAX
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5429EUA+

Taps
32
Resistance (ohms)
10K
Number Of Circuits
1
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Resistance In Ohms
10K
Number Of Pots
Single
Taps Per Pot
32
Resistance
10 KOhms
Wiper Memory
Non Volatile
Digital Interface
Up/Down
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
1.5 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
10k One-Time-Programmable Digital Potentiometer
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 MAX5427/MAX5428/MAX5429 linear-taper digital
potentiometers function as mechanical potentiometers,
but replace the mechanics with a simple 2-wire digital
interface. These digital potentiometers are unique in that
they have an optional one-time programmable feature
that either sets the wiper’s power-on reset (POR) posi-
tion to a user-defined value, or the wiper can be set and
the interface disabled to prevent further adjustment.
The MAX5427 has an end-to-end resistance of 100k ,
the MAX5428 a resistance of 50k , and the MAX5429 a
resistance of 10k . All these devices have 32 wiper
positions, operate from a single 2.7V to 5.5V supply, and
use less than 1.5µA (max) static supply current.
The MAX5427/MAX5428/MAX5429 are available in
8-pin thin QFN and µMAX
guaranteed over the extended temperature range of
-40°C to +85°C.
19-2462; Rev 2; 3/05
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
Products Using One-Time Factory Calibration
TOP VIEW
________________________________________________________________ Maxim Integrated Products
GND
GND
V
V
CS
CS
DD
DD
W
W
*EXPOSED PADDLE. CONNECTED TO GND.
One-Time Programmable, Linear-Taper
General Description
1
2
4
3
1
2
4
3
Pin Configurations
®
packages. Each device is
MAX5427
MAX5428
MAX5429
MAX5427
MAX5428
MAX5429
QFN
MAX
*
*
Applications
6
6
8
7
5
8
7
5
H
L
U/D
V
H
L
U/D
V
PP
PP
♦ Wiper Position Stored After One-Time Fuse
♦ User-Defined Power-On Reset Position
♦ 35ppm/°C End-to-End Temperature Coefficient
♦ 32 Tap Positions
♦ Tiny 8-Pin Thin QFN and µMAX Packages
♦ Ultra-Low 1.5µA (max) Static Supply Current
♦ 2.7V to 5.5V Single-Supply Operation
♦ Wiper Position Programmed Through Simple
♦ 10k , 50k , and 100k End-to-End Resistances
*EP = Exposed paddle.
Digital Potentiometers
MAX5427EUA
MAX5427ETA
MAX5428EUA
MAX5428ETA
MAX5429EUA
MAX5429ETA
GND
V
U/D
V
CS
DD
PP
Programming
and 5ppm/°C Ratiometric Temperature Coefficient
2-Wire Serial Interface
PART
3
4
2
6
5
MAX5427
MAX5428
MAX5429
Functional Block Diagram
UP/DOWN
ONE-TIME
PROGRAM
COUNTER
BLOCK
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
POSITION
DECODER
32-
PIN-PACKAGE
8 µMAX
8 Thin QFN-EP*
8 µMAX
8 Thin QFN-EP*
8 µMAX
8 Thin QFN-EP*
7
8
H
L
R
R
R
R
31
30
2
1
Features
S
S
S
S
S
S
32
31
30
3
2
1
R
W
R (k )
100
100
1
50
50
10
10
W
1

Related parts for MAX5429EUA+

MAX5429EUA+ Summary of contents

Page 1

... GND 4 * QFN *EXPOSED PADDLE. CONNECTED TO GND. µMax is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 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. Digital Potentiometers ♦ Wiper Position Stored After One-Time Fuse Programming ♦ ...

Page 2

One-Time Programmable, Linear-Taper Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6. GND..........................................................-0.3V to +12.0V PP All Other Pins to GND.................................-0. Input and Output Latchup Immunity...............................±200mA Maximum Continuous Current into H, L, and ...

Page 3

One-Time Programmable, Linear-Taper ELECTRICAL CHARACTERISTICS (continued 2.7V to 5.5V GND 5.0V +25°C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL U/D Step High Time Wiper Switching Time Rising ...

Page 4

One-Time Programmable, Linear-Taper Digital Potentiometers (V = 5.0V +25°C, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE 160 140 V = 3.3V DD 120 100 WIPER ...

Page 5

One-Time Programmable, Linear-Taper (V = 5.0V +25°C, unless otherwise noted R-INL ERROR vs. INPUT CODE (MAX5428) 0.10 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0. INPUT CODE (DECIMAL) ...

Page 6

One-Time Programmable, Linear-Taper Digital Potentiometers U Figure 2. Increment Mode Serial Interface Timing Diagram U Figure 3. Decrement Mode Serial Interface Timing Diagram ...

Page 7

One-Time Programmable, Linear-Taper U/D 11V Figure 4. One-Time Program Mode Serial Interface Timing Diagram It is recommended that the user either use six CS puls- es (convert to a fixed voltage-divider) or five pulses ...

Page 8

One-Time Programmable, Linear-Taper Digital Potentiometers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) D PIN 1 INDEX AREA -DRAWING NOT TO SCALE- 8 _______________________________________________________________________________________ A2 ...

Page 9

One-Time Programmable, Linear-Taper (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) COMMON DIMENSIONS MIN. MAX. SYMBOL A 0.70 0.80 D 2.90 3.10 E 2.90 3.10 ...

Page 10

... 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. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...

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