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DS3908 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part No. DS3908
Description  Dual, 64-Position Nonvolatile Digital Potentiometer with Buffered Outputs
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS3908 Datasheet(HTML) 5 Page - Maxim Integrated Products

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Dual, 64-Position Nonvolatile Digital
Potentiometer with Buffered Outputs
_____________________________________________________________________
5
-1.0
-0.4
-0.6
-0.8
-0.2
0
0.2
0.4
0.6
0.8
1.0
-40
10
-15
356085
NORMALIZED POT END-END RESISTANCE
vs. TEMPERATURE
TEMPERATURE (
°C)
VCC = 5V
-1.25
-0.10
-0.15
-0.20
-0.05
0
0.05
0.10
0.15
0.20
0.25
0
10
20
30405060
POT INL vs. SETTING
POT0 SETTING (DEC)
GAIN = 1V/V
-1.25
-0.10
-0.15
-0.20
-0.05
0
0.05
0.10
0.15
0.20
0.25
0
10
20
30405060
POT DNL vs. SETTING
POT0 SETTING (DEC)
GAIN = 1V/V
-0.5
0.6
-0.2
-0.4
-0.3
0.1
0
-0.1
0.5
0.4
0.3
0.2
0.3
1.5
1.9
0.7
1.1
2.3
2.7
3.1
3.5
TYPICAL PGA OFFSET
vs. COMMON-MODE INPUT VOLTAGE
COMMON-MODE INPUT VOLTAGE (V)
GAIN = 1V/V
DATA OFFSET TO SHOW 0 AT 2V CMVIN
+85
°C
+25
°C
-40
°C
-0.2
-0.1
-0.15
0.05
0
-0.05
0.2
0.15
0.1
0.25
-40
10
-15
35
60
85
TYPICAL PGA OFFSET
vs. TEMPERATURE
TEMPERATURE (
°C)
CMVIN = 0.3V
CMVIN = 2.0V
CMVIN = 3.5V
Pin Description
TDFN PIN
NAME
FUNCTION
1
SDA
I2C Serial Data. Input/output for I2C data.
2
SCL
I2C Serial Clock. Input for I2C clock.
3, 4, 5
A0, A1, A2
Address-Select Inputs. Determines I2C address. Device address is 1010A2A1A0. (See the I2C Slave
Address and Address Pins section for more details.)
6WP
Write-Protect Input. Must be grounded to write to the registers. An internal pullup will lock the register
values if this pin is not connected.
7
GND
Ground Terminal
8, 11
L0, L1
Potentiometer Low Terminals. Voltages on these pins should remain between GND and VCC.
9, 12
V0, V1
Amplifier Outputs
10, 13
H0, H1
Potentiometer High Terminals. Voltages on these pins should remain between GND and VCC.
14
VCC
Supply Voltage Terminal
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)


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