DS1806-100 Maxim Integrated Products, DS1806-100 Datasheet

IC POT DIG SEXTET 100K 20-DIP

DS1806-100

Manufacturer Part Number
DS1806-100
Description
IC POT DIG SEXTET 100K 20-DIP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS1806-100

Taps
64
Resistance (ohms)
100K
Number Of Circuits
6
Temperature Coefficient
750 ppm/°C Typical
Memory Type
Volatile
Interface
3-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Resistance In Ohms
100K
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FEATURES
§ Six digitally controlled 64-position
§ 3-wire serial port provides for reading and
§ Devices can be cascaded for single processor
§ Standard resistance values:
§ Operating Temperature Range:
PIN DESCIPTION
V
D
CLK
C
H1 - H6
W1 - W6
GND
L1-3
L4-6
DESCRIPTION
The DS1806 Digital Sextet Potentiometer is a six-channel, digitally controlled, solid-state linear
potentiometer. Each potentiometer is comprised of 63 equiresistive sections as illustrated in the block
diagram of Figure 1. Each potentiometer has three terminals accessible to the user. These include the high
side terminals, H
through 3 share the same low-end terminal L1-3; likewise, potentiometers 4 through 6 share the low-end
terminal L4-6.
Each wiper’ s position is selected via an 8-bit register value. Communication and control of the device is
accomplished via a 3-wire serial port interface. This interface in conjunction with a cascade output allows
the value of the device wiper settings to be read.
www.dalsemi.com
RST
OUT
CC
IN
potentiometers
setting each potentiometer
multi-device control
-
-
-
-
DS1806-010
DS1806-050
DS1806-100
Industrial temperature: -40 C to +85 C
- 3V or 5V Supply
- Serial Port Reset Input
- Serial Port Data Input
- Serial Port Clock Input
- Cascade Data Output
- High End terminal of Pot
- Wiper Terminal of Pot
- Ground
- Low Terminal Pots 1 through 3
- Low Terminal Pots 4 through 6
X
, the wiper terminals, W
10 k
50 k
100 k
X
, and the low-end terminals, L1-3 and L4-6. Potentiometers 1
1 of 8
Digital Sextet Potentiometer
PIN ASSIGNMENT
DS1806E 20-Pin TSSOP (173-mil)
GND
DS1806S 20-Pin SOIC (300-mil)
L1-3
L4-6
CLK
RST
DS1806 20-Pin DIP (300-mil)
W1
W2
W3
W4
W6
See Mech. Drawings Section
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
H1
H2
H3
H4
H5
W5
H6
D
C
OUT
CC
IN
DS1806
102199

Related parts for DS1806-100

DS1806-100 Summary of contents

Page 1

... Devices can be cascaded for single processor multi-device control § Standard resistance values: - DS1806-010 DS1806-050 DS1806-100 100 k § Operating Temperature Range: - Industrial temperature: - +85 C PIN DESCIPTION Supply CC - Serial Port Reset Input RST D ...

Page 2

... Packages for the device include 20-lead DIPs, SOICs, and TSSOPs. OPERATION A block diagram of the device is provided in Figure 1. As shown, the DS1806 contains six 64-position potentiometers whose wiper positions are set by an 8-bit value. The DS1806 contains a 48-bit I/O shift register which is used to store the respective wiper position data for each of the six potentiometers. ...

Page 3

... All communication transactions should provide the total 48 bits of information when writing or reading from the part. This is especially true for applications using all six potentiometers complete set of 48 bits is not transmitted to the part, undesired wiper position settings may occur. DS1806 BLOCK DIAGRAM Figure 1 WIPER REGISTER CONFIGURATION Figure 2 48-BIT I/O SHIFT REGISTER Figure 3 ...

Page 4

... CASCADE OPERATION A feature of the DS1806 is the ability to control multiple devices from a single processor. Multiple DS1806s can be linked or daisy chained as shown in Figure data bit is entered into the I/O shift register of the DS1806, a bit will appear at the C The LSB of potentiometer-1 will always be the first out of the part at the beginning of a transaction. ...

Page 5

... TYPICAL APPLICATION CONFIGURATIONS Figure 6 shows the typical application configuration of the DS1806 as a fixed gain attenuator. In this configuration, the DS1806 adjusts the attenuation level of the incoming signal. Variations in wiper resistance are minimized by connecting the wiper terminal of the part to a high impedance load. ...

Page 6

... SYMBOL MIN TYP V +2 SYMBOL MIN TYP I 1 400 2 -0 STBY GND-0 (- +85 C) MAX UNITS 5.5 V =2.7 to 5.5V) CC MAX UNITS µA 1000 +0 +0 µ µA V +0.5 µA CC DS1806 NOTES 1 NOTES 1 1 102199 ...

Page 7

... SYMBOL MIN TYP -20 -0.5 -0.25 I CUTOFF 750 SYMBOL MIN TYP OUT (- +85 C;V SYMBOL MIN TYP f DC CLK CDH t PLH HLT t 125 RLT DS1806 =2.7 to 5.5V) CC MAX UNITS NOTES + +0.5 LSB 7 LSB +0. ppm = MAX UNITS NOTES =2.7 to 5.5V) CC MAX UNITS NOTES 10 MHz ...

Page 8

... DS1806 depend on potentiometer total resistance: DS1806-010; 1 MHz; DS1806-050; 200 kHz, DS1806-100; 100 kHz. 5. See Figure 4. 6. For 10% maximum Absolute linearity is to used measure expected wiper voltage versus measured wiper voltage as determined by wiper position. The DS1806 is specified to provide an absolute linearity of 0.5 LSB. ...

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