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DS3908 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. DS3908
Description  Dual, 64-Position Nonvolatile Digital Potentiometer with Buffered Outputs
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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DS3908 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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Dual, 64-Position Nonvolatile Digital
Potentiometer with Buffered Outputs
_____________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +5.5V, TA = -40°C to +85°C.) (See Figure 2.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SCL Clock Frequency
fSCL
(Note 6)
400
kHz
Bus Free Time between STOP
and START Conditions
tBUF
1.3
µs
Hold Time (Repeated) START
Condition
tHD:STA
0.6
µs
Low Period of SCL
tLOW
1.3
µs
High Period of SCL
tHIGH
0.6
µs
Data Hold Time
tHD:DAT
0
0.9
µs
Data Setup Time
tSU:DAT
100
ns
Start Setup Time
tSU:STA
0.6
µs
SDA and SCL Rise Time
tR
(Note 7)
20 + 0.1CB
300
ns
SDA and SCL Fall Time
tF
(Note 7)
20 + 0.1CB
300
ns
STOP Setup Time
tSU:STO
0.6
µs
SDA and SCL Capacitance
CB
(Note 7)
400
pF
EEPROM Write Time
tW
(Note 8)
10
17
ms
Startup Time
tST
VCC = 3.0V
40
µs
PROGRAMMABLE-GAIN AMPLIFIER CHARACTERISTICS
(VCC = +3.0V to +5.5V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Common-Mode Input Voltage
CMVIN
0
VCC - 1.5
V
RL
≥ 2kΩ, G = 1V/V
0.975
1
1.025
RL
≥ 2kΩ, G = 2V/V
1.925
2
2.05
Gain
G
RL
≥ 2kΩ, G = 4V/V
3.850
4
4.10
V/V
Output Voltage Range
VOUT
RL = 2k
Ω, -1mA < IOUT < 1mA
0.3
VCC - 0.3
V
Power-Supply Rejection Ratio
PSRR
60
90
dB
Output Source Current
IOUT:SOURCE
VOUT = 0V, Hx = Lx = 1V
-15
mA
Output Sink Current
IOUT:SINK
VOUT = 1V, Hx = Lx = 0V
15
mA
Unity-Gain Frequency
fT
Gain = 1V/V, position 3Fh
3.5
MHz
Amplifier Capacitive Loading
CL
100
pF
Input Offset Voltage
VOS
-9
+9
mV
Load Regulation
-1mA < IOUT < 1mA
800
2200
µV/mA
Output-Voltage Slew Rate
RL = 10k
Ω, CL = 10pF
270
840
V/ms


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