MAX5418LETA+T Maxim Integrated Products, MAX5418LETA+T Datasheet

IC POT DGTL 256-TAP I2C 8-TDFN

MAX5418LETA+T

Manufacturer Part Number
MAX5418LETA+T
Description
IC POT DGTL 256-TAP I2C 8-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5418LETA+T

Taps
256
Resistance (ohms)
100K
Number Of Circuits
1
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.25 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Resistance In Ohms
100K
Number Of Pots
Single
Taps Per Pot
256
Resistance
100 KOhms
Wiper Memory
Non Volatile
Digital Interface
Serial (2-Wire, I2C)
Operating Supply Voltage
5 V
Supply Current
0.001 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
100kOhm, 256-Tap, Nonvolatile, I2C-Interface Digital Potentiometer
Mounting Style
SMD/SMT
Supply Voltage (max)
5.25 V
Supply Voltage (min)
2.7 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MAX5418LETA+T
The MAX5417/MAX5418/MAX5419 nonvolatile, linear-
taper, digital potentiometers perform the function of a
mechanical potentiometer by replacing the mechanics
with a simple 2-wire digital interface, allowing communi-
cation with multiple devices. Each device performs the
same function as a discrete potentiometer or variable
resistor and has 256 tap points.
The devices feature an internal, nonvolatile EEPROM
used to store the wiper position for initialization during
power-up. The fast-mode I
allows communication at data rates up to 400kbps, mini-
mizing board space and reducing interconnection com-
plexity in many applications. Each device is available with
one of four factory-preset addresses (see the Selector
Guide ) and features an address input for a total of eight
unique address combinations.
The MAX5417/MAX5418/MAX5419 provide three nomi-
nal resistance values: 50kΩ (MAX5417), 100kΩ
(MAX5418), or 200kΩ (MAX5419). The nominal resistor
temperature coefficient is 35ppm/°C end-to-end, and
only 5ppm/°C ratiometric. This makes the devices ideal
for applications requiring a low-temperature-coefficient
variable resistor, such as low-drift, programmable gain-
amplifier circuit configurations.
The MAX5417/MAX5418/MAX5419 are available in a
3mm x 3mm 8-pin TDFN package, and are specified
over the extended -40°C to +85°C temperature range.
19-3185; Rev 4; 4/10
+ Denotes a lead(Pb)-free/RoHS-compliant package.
** Exposed pad.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX5417LETA+
MAX5417META+
MAX5417NETA+
MAX5417PETA+
MAX5418LETA+
MAX5418META+
MAX5418NETA+
MAX5418PETA+
MAX5419LETA+
MAX5419META+
MAX5419NETA+
MAX5419PETA+
Mechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifiers
Volume Control
Liquid-Crystal Display (LCD) Contrast Control
PART
________________________________________________________________ Maxim Integrated Products
General Description
2
-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
-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
C-compatible serial interface
256-Tap, Nonvolatile, I
Applications
I
2
C ADDRESS
010100A
010101A
010110A
010111A
010100A
010101A
010110A
010111A
010100A
010101A
010110A
010111A
Ordering Information/Selector Guide
0
0
0
0
0
0
0
0
0
0
0
0
o Power-On Recall of Wiper Position from
o Tiny 3mm x 3mm 8-Pin TDFN Package
o 35ppm/°C End-to-End Resistance Temperature
o 5ppm/°C Ratiometric Temperature Coefficient
o 50kΩ/100kΩ/200kΩ Resistor Values
o Fast I
o 500nA (typ) Static Supply Current
o Single-Supply Operation: +2.7V to +5.25V
o 256 Tap Positions
o ±0.5 LSB DNL in Voltage-Divider Mode
o ±0.5 LSB INL in Voltage-Divider Mode
Pin Configuration appears at end of data sheet.
Digital Potentiometers
GND
Nonvolatile Memory
Coefficient
SDA
SCL
V
DD
A
0
2
C-Compatible Serial Interface
R (kΩ)
INTERFACE
REGISTER
100
100
100
100
200
200
200
200
50
50
50
50
SHIFT
8-BIT
I
2
C
8
POR
PIN-PACKAGE
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
8 TDFN-EP**
MEMORY
LATCH
2
Functional Diagram
8-BIT
8-BIT
NV
C-Interface,
8
DECODER
POSITION
MAX5417
MAX5418
MAX5419
256-
256
Features
TOP MARK
ALW
AMA
ALU
ALS
ALT
ALV
ALX
ALY
ALZ
AIC
AID
AIB
H
W
L
1

Related parts for MAX5418LETA+T

MAX5418LETA+T Summary of contents

Page 1

... MAX5419PETA+ -40°C to +85°C + Denotes a lead(Pb)-free/RoHS-compliant package. ** Exposed pad. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Digital Potentiometers o Power-On Recall of Wiper Position from ...

Page 2

Nonvolatile, I Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6.0V DD All Other Pins to GND.................................-0. Maximum Continuous Current into H, L, and W MAX5417......................................................................±1.3mA MAX5418......................................................................±0.6mA MAX5419......................................................................±0.3mA Stresses beyond those listed under “Absolute Maximum ...

Page 3

Nonvolatile, I ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V GND DIGITAL INPUTS Input High Voltage (Note 4) Input Low Voltage Low-Level Output Voltage Input Leakage Current Input Capacitance DYNAMIC ...

Page 4

Nonvolatile, I Digital Potentiometers TIMING CHARACTERISTICS (continued +2.7V to +5.25V GND +25°C. See Figures 1 and 2.) (Note 7) PARAMETER SYMBOL Data Setup Time t Data Hold Time ...

Page 5

Nonvolatile +5V +25°C, unless otherwise noted DNL vs. TAP POSITION 0.25 VOLTAGE-DIVIDER MODE 0.20 0.15 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -0. 128 160 192 224 TAP ...

Page 6

Nonvolatile, I Digital Potentiometers (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. DIGITAL INPUT VOLTAGE 600 500 400 300 200 100 DIGITAL INPUT VOLTAGE (V) INL vs. ...

Page 7

Nonvolatile +5V +25°C, unless otherwise noted DNL vs. TAP POSITION (MAX5419) 0.3 VARIABLE-RESISTOR MODE V = 2. 10µA SRC 0.1 0 -0.1 -0.2 -0 ...

Page 8

Nonvolatile, I Digital Potentiometers PIN NAME 1 V Power-Supply Input. 2.7V to 5.25V voltage range. Bypass with a 0.1µF capacitor from SCL I C-Interface Clock Input 2 3 SDA I C-Interface Data Input 4 A ...

Page 9

Nonvolatile, I The MAX5417/MAX5418/MAX5419 consist of a resistor array with 255 resistive elements; 256 tap points are accessible to the wiper, W, along the resistor string between H and L. The wiper tap point is selected by programming the ...

Page 10

Nonvolatile, I Digital Potentiometers Table 1. MAX5417/MAX5418/MAX5419 Address Codes PART SUFFIX The acknowledge bit is a clocked 9th bit that the recipient ...

Page 11

Nonvolatile, I CONTROL BYTE IS STORED ON RECEIPT OF STOP CONDITION MAX5417/MAX5418/MAX5419 S SLAVE ADDRESS Figure 7. Command Byte Received HOW CONTROL BYTE AND DATA BYTE MAP INTO MAX5417/MAX5418/MAX5419 REGISTERS ACKNOWLEDGE FROM MAX5417/MAX5418/MAX5419 S SLAVE ADDRESS 0 NOP/W Figure ...

Page 12

Nonvolatile, I Digital Potentiometers Table 2. Command Byte Summary ADDRESS BYTE SCL CYCLE S NUMBER VREG NVREG 0 1 ...

Page 13

Nonvolatile MAX5417 R2 MAX5418 W MAX5419 L Figure 11. Programmable Filter + OUT MAX6160 W ADJ GND MAX5417 MAX5418 MAX5419 Figure 12. Adjustable Voltage Reference Adjustable Voltage Reference ...

Page 14

... 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products ...

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