參數(shù)資料
型號(hào): DS1803
廠(chǎng)商: DALLAS SEMICONDUCTOR
元件分類(lèi): 數(shù)字電位計(jì)
英文描述: Addressable Dual Digital Potentiometer(可尋址雙路數(shù)字電位器)
中文描述: DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDIP16
封裝: PLASTIC, DIP-16
文件頁(yè)數(shù): 6/10頁(yè)
文件大小: 74K
代理商: DS1803
DS1803
022698 6/10
ANALOG RESISTOR CHARACTERISTICS
(–40
°
C to+85
°
C; V
CC
=2.7V to 5.5V)
MAX
UNITS
PARAMETER
SYMBOL
MIN
TYP
NOTES
End–to–End Resistor Tolerance
–20
+20
%
Absolute Linearity
±
0.75
LSB
13
Relative Linearity
±
0.3
LSB
14
–3 dB Cutoff Frequency
f
cutoff
Hz
11
Temperature Coefficient
650
ppm/C
Capacitance
C
I
5
pF
AC ELECTRICAL CHARACTERISTICS
(–40
°
C to+85
°
C; V
CC
=2.7V to 5.5V)
MAX
UNITS
PARAMETER
SYMBOL
MIN
TYP
NOTES
SCL Clock Frequency
f
SCI
0
0
400
100
KHz
16
17
Bus Free Time Between STOP
and START Condition
t
BUF
1.3
4.7
μ
s
16
17
Hold Time (Repeated) START
Condition
t
HD:STA
0.6
4.0
μ
s
5
Low Period of SCL Clock
t
LOW
1.3
4.7
μ
s
High Period of SCL Clock
t
HIGH
0.6
4.0
μ
s
Data Hold Time
t
HD:DAT
0
0
0.9
μ
s
6, 7
Data Setup Time
t
SU:DAT
100
250
ns
8
Rise Time of both SDA and SCL
Signals
t
R
20+0.1C
B
300
1000
ns
9
Fall Time of both SDA and SCL
Signals
t
F
20+0.1C
B
300
300
ns
9
Setup Time for STOP Condition
t
SU:STO
0.6
4.0
μ
s
Capacitive Load for each Bus
Line
C
B
400
pF
NOTES:
1. All voltages are referenced to ground.
2. I/O pins of fast mode devices must not obstruct the SDA and SCL lines if V
DD
is switched off.
3. I
CC
specified with SDA pin open SCL = 400 KHz clock rate.
4. I
CC
specified with V
CC
at 5.0V and SDA, SCL = 5.0V, –40
°
C to +85
°
C.
5. After this period, the first clock pulse is generated.
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DS1803-010 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:Addressable Dual Digital Potentiometer