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DS1805 PDF даташит

Спецификация DS1805 изготовлена ​​​​«Maxim Integrated» и имеет функцию, называемую «Addressable Digital Potentiometer».

Детали детали

Номер произв DS1805
Описание Addressable Digital Potentiometer
Производители Maxim Integrated
логотип Maxim Integrated логотип 

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DS1805 Даташит, Описание, Даташиты
Rev 1; 9/06
Addressable Digital Potentiometer
General Description
The DS1805 addressable digital potentiometer contains
a single 256-position digitally controlled potentiometer.
Device control is achieved through a 2-wire serial inter-
face. Device addressing is provided through three
address inputs that allow up to eight devices on a sin-
gle 2-wire bus. The exact wiper position of the poten-
tiometer can be written or read. The DS1805 is
available in 16-pin SO and 14-pin TSSOP packages.
The device is available in three standard resistance val-
ues: 10k, 50k, and 100k. The DS1805 is specified
over the industrial temperature range. The DS1805
provides a low-cost alternative for designs based on
the DS1803, but require only a single potentiometer.
Applications
CCFL Inverters
PDAs and Cell Phones
Portable Electronics
Multimedia Products
Instrumentation and Industrial Controls
Features
o 3V or 5V Operation
o Low Power Consumption
o One Digitally Controlled, 256-Position
Potentiometer
o Compatible with DS1803-Based Designs
o 14-Pin TSSOP (173mil) and 16-Pin SO (150mil)
Available for Surface-Mount Applications
o Three Address Inputs
o Serial 2-Wire Bus
o Operating Temperature Range
Industrial: -40°C to +85°C
o Standard Resistance Values
DS1805-010: 10k
DS1805-050*: 50k
DS1805-100*: 100k
TOP VIEW
Pin Configurations
H1 1
L1 2
W1 3
A2 4
A1 5
A0 6
GND 7
DS1805E
14 VCC
13 N.C.
12 N.C.
11 N.C.
10 N.C.
9 SDA
8 SCL
14 TSSOP (173mil)
H1 1
N.C. 2
L1 3
W1 4
A2 5
A1 6
A0 7
GND 8
DS1805Z
16 VCC
15 N.C.
14 N.C.
13 N.C.
12 N.C.
11 N.C.
10 SDA
9 SCL
16 SO (150mil)
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
RESISTANCE
(K)
DS1805E-010 -40°C to +85°C 14 TSSOP (173mil)
10
DS1805E-050* -40°C to +85°C 14 TSSOP (173mil)
50
DS1805E-100* -40°C to +85°C 14 TSSOP (173mil)
100
DS1805Z-010 -40°C to +85°C 16 SO (150mil)
10
DS1805Z-050* -40°C to +85°C 16 SO (150mil)
50
DS1805Z-100* -40°C to +85°C 16 SO (150mil)
100
Add “/T&R” for tape-and-reel orders.
*Future product.
______________________________________________ Maxim Integrated Products 1
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.









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DS1805 Даташит, Описание, Даташиты
Addressable Digital Potentiometer
ABSOLUTE MAXIMUM RATINGS
Voltage on Any Pin Relative to Ground .................-0.5V to +6.0V
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature............................................See IPC/JEDEC
J-STD-020A Specification
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(TA = -40°C to +85°C)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
VCC (Note 1)
Resistor Inputs
L, H, W (Note 1)
MIN TYP MAX UNITS
2.7 5.5 V
-0.3
VCC +
V
0.3
DC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V to 5.5V, TA = -40°C to +85°C.)
PARAMETER
Supply Current Active
Input Leakage
Wiper Resistance
Wiper Current
SYMBOL
ICC
IIL
RW
IW
(Note 2)
Input Logic 1
VIH
CONDITIONS
Input Logic 0
VIL
Input Logic Levels A0, A1, A2
(Note 3)
Input Current each I/O Pin
(Note 4)
Standby Current
Low-Level Output Voltage
I/O Capacitance
Pulse Width of Spikes that Must
be Suppressed by the Input Filter
Input logic 1
Input logic 0
ISTBY
VOL1
VOL2
CI/0
tSP
0.4V < VI/O < 0.9VCC
(Note 5)
3mA sink current
6mA sink current
Fast mode
MIN
-1
0.7VCC
GND -
0.3
0.7VCC
GND -
0.3
TYP MAX UNITS
200 µA
+1 µA
400 1000
1 mA
VCC +
0.3
V
0.3VCC
V
VCC +
0.3
0.25VCC
V
-10 +10 µA
20 40
µA
0 0.4 V
0 0.6 V
10 pF
0 50 ns
2 _____________________________________________________________________









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DS1805 Даташит, Описание, Даташиты
Addressable Digital Potentiometer
ANALOG RESISTOR CHARACTERISTICS
(VCC = 2.7V to 5.5V, TA = -40°C to +85°C)
PARAMETER
SYMBOL
End-to-End Resistor Tolerance
(Note 6)
Absolute Linearity
(Note 7)
Relative Linearity
(Note 8)
-3dB Cutoff Frequency
fCUTOFF (Note 9)
Ratiometric Temperature Coefficient
End-to-End Temperature Coefficient
Capacitance
CI
CONDITIONS
MIN
-20
-0.75
-0.3
TYP
8
550
MAX
+20
+0.75
+0.3
5
UNITS
%
LSB
LSB
Hz
ppm/°C
ppm/°C
pF
AC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V to 5.5V, TA = -40°C to +85°C)
PARAMETER
SCL Clock Frequency (Note 10)
Bus Free Time Between STOP
and START Condition (Note 10)
Hold Time (Repeated) START
Condition (Notes 10, 11)
Low Period of SCL Clock
(Note 10)
High Period of SCL Clock
(Note 10)
Data Hold Time
(Notes 10, 12, 13)
Data Setup Time
(Note 10)
Rise Time of Both SDA and SCL
Signals (Notes 10, 14)
Fall Time of Both SDA and SCL
Signals (Notes 10, 14)
Setup Time for STOP Condition
(Note 10)
Capacitive Load for Each Bus
Line (Note 14)
SYMBOL
fSCL
tBUF
tHD:STA
tLOW
tHIGH
tHD:DAT
tSU:DAT
tR
tF
tSU:STO
CONDITIONS
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
CB
MIN
0
0
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0
0
100
250
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
20 + 0.1CB
0.6
4.0
TYP
MAX
400
100
0.9
0.9
300
1000
300
300
400
UNITS
kHz
µs
µs
µs
µs
µs
ns
ns
ns
µs
pF
_____________________________________________________________________ 3










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