MAX5407EKA+T Maxim Integrated Products, MAX5407EKA+T Datasheet

IC POT DIG AUDIO 32TAP SOT23-8

MAX5407EKA+T

Manufacturer Part Number
MAX5407EKA+T
Description
IC POT DIG AUDIO 32TAP SOT23-8
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5407EKAT.pdf (7 pages)

Specifications of MAX5407EKA+T

Taps
32
Resistance (ohms)
20K
Number Of Circuits
1
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Volatile
Interface
Up/Down
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-8
Resistance In Ohms
20K
Number Of Pots
Single
Taps Per Pot
32
Resistance
20 KOhms
Wiper Memory
Volatile
Digital Interface
Serial (2-Wire)
Operating Supply Voltage
5 V
Supply Current
0.1 mA (Typ)
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
32-Tap Audio 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
Other names
MAX5407EKA+T
The MAX5407 SOT-PoT™ is a logarithmic taper digital
potentiometer with 32 tap points that has 1dB steps
between taps. This device is ideal for audio applica-
tions, such as volume control and fading/balancing
audio signals.
The MAX5407 consists of a resistor string and CMOS
switches that are digitally controlled through a simple 2-
wire serial interface. This device performs the same
function as a mechanical potentiometer. The device
has a fixed end-to-end resistance of 20kΩ and features
zero-crossing detection to minimize the audible noise
generated by the wiper transitions.
This device has nominal resistor temperature coefficients
of 35ppm/°C end-to-end and 5ppm/°C ratiometric. The
MAX5407 is available in a space saving 8-pin SOT23
package and is guaranteed from -40°C to +85°C.
19-2196; Rev 0; 10/01
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.
SOT-PoT is a trademark of Maxim Integrated Products, Inc.
ZCEN
GND
V
U/D
CS
DD
Audio Volume Control
Fading/Balancing Audio Signals
Mechanical Potentiometer Replacement
UP/DOWN
COUNTER
MAX5407
________________________________________________________________ Maxim Integrated Products
General Description
32-POSITION
Functional Diagram
DECODER
Applications
H
L
32-Tap Audio Logarithmic Taper
W
o Miniature 3mm x 3mm 8-Pin SOT23 Package
o Logarithmic Taper with 1dB Steps Between Taps
o 32 Tap Positions
o Low 0.35µA Supply Current
o +2.7V to +5.5V Single-Supply Operation
o Zero-Crossing Detection to Minimize Audible
o Simple Up/Down 2-Wire Serial Data Interface
o Power-On Reset
o 20kΩ End-to-End Resistance
MAX5407EKA
Clicks During Wiper Transitions
Wiper Goes To Maximum Attenuation
(Lowest Tap Position)
Digital Potentiometer
PART
TOP VIEW
TEMP. RANGE
-40°C to +85°C
GND
W
H
L
1
2
3
4
Ordering Information
MAX5407
SOT23
Pin Configuration
PACKAGE
8 SOT23
PIN-
7
5
8
6
ZCEN
V
CS
U/D
DD
Features
TOP MARK
AAID
1

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MAX5407EKA+T Summary of contents

Page 1

... UP/DOWN 32-POSITION U/D COUNTER DECODER ZCEN SOT-PoT is a 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. 32-Tap Audio Logarithmic Taper Digital Potentiometer o Miniature 3mm x 3mm 8-Pin SOT23 Package ...

Page 2

Audio Logarithmic Taper Digital Potentiometer ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0. CS, ZCEN, and U/D to GND .........-0. Input and Output Latchup Immunity...............................±200mA Maximum Continuous Current into H, L, and ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V (Note 1) PARAMETER SYMBOL POWER SUPPLIES Supply Voltage Supply Current Note 1: All devices are 100% production tested at T ...

Page 4

Audio Logarithmic Taper 32-Tap Audio Logarithmic Taper Digital Potentiometer Digital Potentiometer (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 0.50 0.45 0. +5V DD 0.35 0.30 0.25 0. ...

Page 5

U/D W NOTE NOT A DIGITAL SIGNAL. IT REPRESENTS THE WIPER TRANSITIONING. Figure 1. Serial Interface Timing Diagram, Increment Mode U/D W NOTE NOT A DIGITAL SIGNAL. IT REPRESENTS THE ...

Page 6

Audio Logarithmic Taper Digital Potentiometer Power-On Reset The power-on reset feature sets the wiper to the maxi- mum attenuation (tap position 31, -31dB) at power-up initially high, the MAX5407 is in the increment mode by default. ...

Page 7

... 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 _____________________ 7 © 2001 Maxim Integrated Products ...

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