max5389laud Maxim Integrated Products, Inc., max5389laud Datasheet

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max5389laud

Manufacturer Part Number
max5389laud
Description
Dual, 256-tap, Volatile, Low-voltage Linear Taper Digital Potentiometer
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

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Part Number:
max5389laud+
Manufacturer:
Maxim
Quantity:
20 000
19-5141; Rev 0; 1/10
The MAX5389 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 +2.6V to +5.5V power supply, the device
provides a low 35ppm/NC end-to-end temperature coef-
ficient. The MAX5389 features an up/down interface.
The small package size, low supply operating voltage,
low supply current, and automotive temperature range
of the MAX5389 make the device uniquely suited for the
portable consumer market, battery backup industrial
applications, and the automotive market.
The MAX5389 is specified over the automotive -40NC to
+125NC temperature range and is available in a 14-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.
Audio Mixing
Mechanical Potentiometer Replacement
Low-Drift Programmable Filters and Amplifiers
Adjustable Voltage References/Linear Regulators
Programmable Delays and Time Constants
Automotive Electronics
Low-Voltage Battery Applications
_______________________________________________________________ Maxim Integrated Products 1
General Description
Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometer
Applications
S
S
S
S
S
S
S
Note: All devices are specified over the -40NC to +125NC oper-
ating temperature range
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX5389LAUD+
MAX5389MAUD+
MAX5389NAUD+
Dual, 256-Tap Linear Taper Positions
Single +2.6V to +5.5V Supply Operation
Low (< 1µA) Quiescent Supply Current
10kI, 50kI, 100kI End-to-End Resistance Values
Up/Down Interface
Power-On Sets Wiper to Midscale
-40°C to +125NC Operating Temperature Range
INCA
INCB
UDA
UDB
CSA
CSB
PART
V
U/D
DD
MAX5389
PIN-PACKAGE
LATCH
LATCH
POR
Ordering Information
14 TSSOP
14 TSSOP
14 TSSOP
Functional Diagram
GND
HA
256 DECODER
256 DECODER
WA
RESISTANCE (kI)
END-TO-END
LA
Features
100
10
50
HB
WB
LB

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max5389laud Summary of contents

Page 1

... End-to-End Resistance Values S Up/Down Interface S Power-On Sets Wiper to Midscale S -40°C to +125NC Operating Temperature Range S PART MAX5389LAUD+ MAX5389MAUD+ Applications MAX5389NAUD+ Note: All devices are specified over the -40NC to +125NC oper- ating temperature range +Denotes a lead(Pb)-free/RoHS-compliant package. CSA UDA ...

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 into H_, ...

Page 3

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer ELECTRICAL CHARACTERISTICS (continued +2.6V to +5.5V H__ DD L__ T = +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 Figure 1. Voltage-Divider and Variable Resistor Configurations ( V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 1.0 0.9 0 0.7 0.6 ...

Page 5

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer ( V = +5V +25°C, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE (10kI) 210 V = 2.6V 190 DD 170 150 130 DD 110 ...

Page 6

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer ( V = +5V +25°C, unless otherwise noted VOLTAGE-DIVIDER DNL vs. TAP POSITION (50kI) 0.10 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0. 102 ...

Page 7

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer ( V = +5V +25°C, unless otherwise noted TAP-TO-TAP SWITCHING TRANSIENT (CODE 127 TO 128) 50kI MAX5389 toc22 V W-L 20mV/div INC 5V/div 400ns/div MIDSCALE FREQUENCY RESPONSE 10 ...

Page 8

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer PIN NAME 1 CSA Active-Low Register A Chip-Select Input. Drive CSA low to change wiper position WA through INCA and UDA. Register A Up/Down Control Input. With UDA low, a high-to-low transition ...

Page 9

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Detailed Description The MAX5389 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 10

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Applications Information Variable Gain Amplifier Figure 3 shows a potentiometer adjusting the gain of a noninverting amplifier. Figure 4 shows a potentiometer adjusting the gain of an inverting amplifier ...

Page 11

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Variable Gain Current to Voltage Converter Figure 7 shows a variable gain current to voltage con- verter using a potentiometer as a variable resistor. LCD Bias Control Figure 8 shows a positive ...

Page 12

... RoHS status only. Package drawings may show a different suf- fix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE 14 TSSOP Maxim is a registered trademark of Maxim Integrated Products, Inc. Process Information Package Information PACKAGE CODE DOCUMENT NO. U14+1 ...

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