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MAX5477-MAX5479 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX5477-MAX5479
Description  Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
Download  15 Pages
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX5477-MAX5479 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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Dual, 256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +5.25V, H_ = VDD, L_ = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5V, TA =
+25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DIGITAL INPUTS
VDD = 3.4V to 5.25V
2.4
Input High Voltage (Note 5)
VIH
VDD < 3.4V
0.7 x VDD
V
Input Low Voltage
VIL
(Note 5)
0.8
V
Output Low Voltage
VOL
ISINK = 3mA
0.4
V
WP Pullup Resistance
IWP
255
k
Input Leakage Current
ILEAK
±1
µA
Input Capacitance
5pF
DYNAMIC CHARACTERISTICS
Crosstalk
HA = 1kHz (0 to VDD), LA = GND,
LB = GND, measure WB
-80
dB
MAX5478
100
3dB Bandwidth (Note 6)
MAX5479
50
kHz
Total Harmonic Distortion Plus
Noise
THD+N
H_ = 1VRMS, f = 1kHz, L_ = GND,
measure W_
0.003
%
NONVOLATILE MEMORY RELIABILITY
Data Retention
TA = +85°C
50
Years
TA = +25°C
200,000
Endurance
TA = +85°C
50,000
Stores
POWER SUPPLY
Power-Supply Voltage
VDD
2.70
5.25
V
Writing to EEPROM, digital inputs at
GND or VDD (Note 7)
250
400
WP = GND
15
20.6
Supply Current
IDD
Normal operation, digital
inputs at GND or VDD
WP = VDD
0.5
1
µA
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SECTION
MAX5478
500
Wiper Settling Time (Note 10)
tWS
MAX5479
1000
ns
DIGITAL SECTION
SCL Clock Frequency
fSCL
400
kHz
Setup Time for START Condition
tSU:STA
0.6
µs
Hold Time for START Condition
tHD:STA
0.6
µs
TIMING CHARACTERISTICS
(VDD = +2.7V to +5.25V, H_ = VDD, L_ = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5V,
TA = +25°C. See Figure 1.) (Notes 8 and 9)


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