max5392miniqu Maxim Integrated Products, Inc., max5392miniqu Datasheet

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max5392miniqu

Manufacturer Part Number
max5392miniqu
Description
Dual, 256-tap, Volatile, Low-voltage, Linear Taper Digital Potentiometer
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
19-5122; Rev 0; 1/10
The MAX5392 dual, 256-tap, volatile, low-voltage, lin-
ear taper digital potentiometer offers three end-to-end
resistance values of 10kI, 50kI, and 100kI. Operating
from a single +1.7V to +5.5V power supply, the device
provides a low 35ppm/NC end-to-end temperature coef-
ficient. The device features an I
The small package size, low supply operating voltage,
low supply current, and automotive temperature range
of the MAX5392 makes the device uniquely suited for
the portable consumer market, battery-backup industrial
applications, and the automotive market.
The MAX5392 is specified over the automotive -40NC to
+125NC temperature range and is available in a 16-pin
TSSOP package.
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.
Low-Voltage Battery Applications
Portable Electronics
Mechanical Potentiometer Replacement
Offset and Gain Control
Adjustable Voltage References/Linear Regulators
Automotive Electronics
_______________________________________________________________ Maxim Integrated Products 1
General Description
Dual, 256-Tap, Volatile, Low-Voltage,
Linear Taper Digital Potentiometer
2
C interface.
Applications
S
S
S
S
S
S
S
Note: All devices are specified over the -40°C to +125NC oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX5392LAUE+
MAX5392MAUE+
MAX5392NAUE+
Dual, 256-Tap Linear Taper Positions
Single +1.7V to +5.5V Supply Operation
Low 12
10kI, 50kI, 100kI End-to-End Resistance Values
I
Wiper Set to Midscale on Power-Up
-40NC to +125NC Operating Temperature Range
SDA
2
SCL
A0
A1
A2
C-Compatible Interface
PART
µ
CHARGE
PUMP
A Quiescent Supply Current
V
I
DD
2
C
BYP
16 TSSOP
16 TSSOP
16 TSSOP
PIN-PACKAGE
LATCH
LATCH
Ordering Information
POR
Functional Diagram
HA
GND
256 DECODER
256 DECODER
MAX5392
WA
RESISTANCE (kI)
END-TO-END
Features
100
LA
10
50
HB
WB
LB

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max5392miniqu Summary of contents

Page 1

Rev 0; 1/10 Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer General Description The MAX5392 dual, 256-tap, volatile, low-voltage, lin- ear taper digital potentiometer offers three end-to-end resistance values of 10kI, 50kI, and 100kI. Operating from a single +1.7V ...

Page 2

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6V DD H_, W_ GND ......................................-0.3V to the lower of All Other Pins to GND .............................................-0.3V to +6V Continuous Current in to ...

Page 3

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer ELECTRICAL CHARACTERISTICS (continued +1.7V to +5.5V +25NC.) (Note 1) A PARAMETER SYMBOL AC PERFORMANCE Crosstalk -3dB Bandwidth Total Harmonic ...

Page 4

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer ELECTRICAL CHARACTERISTICS (continued +1.7V to +5.5V +25NC.) (Note 1) A PARAMETER SYMBOL Data Setup Time t Data Hold Time ...

Page 5

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer (V = 1.8V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 2. 1.8V DD ...

Page 6

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer (V = 1.8V +25°C, unless otherwise noted VARIABLE RESISTOR DNL vs. TAP POSITION (50kI) 0.10 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0. 30µA WIPER ...

Page 7

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer (V = 1.8V +25°C, unless otherwise noted VOLTAGE-DIVIDER INL vs. TAP POSITION (50kI) 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0 102 153 ...

Page 8

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer (V = 1.8V +25°C, unless otherwise noted MIDSCALE FREQUENCY RESPONSE (10kI - 1. P-P ...

Page 9

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer TOP VIEW PIN NAME Resistor A High Terminal. The voltage at HA can be higher or lower than the voltage at LA. Current 1 HA can flow into or out of HA. ...

Page 10

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer Detailed Description The MAX5392 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three end-to-end resis- tance values of 10kI, 50kI, and 100kI. The potenti- ometer consists of 255 fixed resistors in ...

Page 11

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer Each transmission consists of a START (S) condition sent by a master, followed by a 7-bit slave address plus a NOP/W bit. See Figures 3, 4, and 7. START and STOP Conditions ...

Page 12

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer START CONDITION SCL 1 SDA Figure 6. Acknowledge HOW CONTROL BYTE AND DATA BYTE MAP INTO DEVICE REGISTERS ACKNOWLEDGE S SLAVE ADDRESS NOP/W Figure 7. Command and Single Data Byte Received The ...

Page 13

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer 2 Table Command Byte Summary ADDRESS BYTE SCL CYCLE NUMBER REG ...

Page 14

Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer Adjustable Voltage Reference Figure 11 shows an adjustable voltage reference circuit using a potentiometer as a voltage-divider. Variable Gain Current to Voltage Converter Figure 12 shows a variable gain current to voltage ...

Page 15

... 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 2010 Maxim Integrated Products © V OUT R1 Figure 16. Offset Voltage Adjustment Circuit PACKAGE CODE U16+2 Maxim is a registered trademark of Maxim Integrated Products, Inc. 1. OUT Package Information DOCUMENT NO ...

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