ds3908nt-r Maxim Integrated Products, Inc., ds3908nt-r Datasheet - Page 4

• Manufacturer Part Number: ds3908nt-r
• Description: Ds3908 Dual 64-position Nonvolatile Digital Potentiometer With Buffered Output
• Manufacturer: Maxim Integrated Products, Inc.

Dual, 64-Position Nonvolatile Digital
Potentiometer with Buffered Outputs
NONVOLATILE MEMORY CHARACTERISTICS
(V
Note 1: All voltages are referenced to ground.
Note 2: I
Note 3: Absolute linearity is used to measure expected wiper voltage as determined by wiper position in a voltage-divider
Note 4: This specification only refers to the potentiometers, and does not include the gain and offset error due to the PGA.
Note 5: Relative linearity is used to determine the change of wiper voltage between two adjacent wiper positions in a voltage-
Note 6: I
Note 7: C
Note 8: EEPROM write begins after a stop condition occurs.
(T
4
1.10000
1.00000
1.90000
1.80000
1.70000
1.60000
1.50000
1.40000
1.30000
EEPROM Write Cycles
CC
A
= +25°C, unless otherwise noted.)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
_____________________________________________________________________
0
= +3.0V to +5.5V.)
3.0
0
GAIN = 1V/V
Hx = 1V
Lx = 0.3V
Hx = V
A0 TO A2 = V
SDA, SCL = V
POT AT 1Dh
GAIN = 2V/V
NO LOAD
OUTPUT VOLTAGE vs. POT SETTING
PARAMETER
connected to V
SDA and SCL connected to V
configuration.
divider configuration.
dard-mode timing.
STBY
2
B
C interface timing shown is for fast-mode (400kHz) operation. This device is also backward-compatible with I
10
STANDBY SUPPLY CURRENT
—total capacitance of one bus line in picofarads, timing referenced to 0.9 x V
CC
3.5
, Lx = GND
vs. SUPPLY VOLTAGE
specified assuming control pins are connected as follows: WP must be disconnected or connected high. H terminal
CC
20
POT SETTING (DEC)
CC
4.0
+85°C
30
V
CC
CC
4.5
40
, L terminal connected to GND, potentiometer position 1Dh, PGA is at 2V/V, A0 to A2 connected to V
+25°C
-40°C
50
5.0
SYMBOL
60
CC
5.5
, with no load.
0.001
0.01
0.1
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
1
0
0.001
-40
At +70°C
+85°C +25°C
STANDBY SUPPLY CURRENT
0.01
-15
vs. TEMPERATURE
CONDITIONS
V
TEMPERATURE (°C)
OL
I
-40°C
0.1
OUT:SINK
10
vs. I
5.5V
OUT:SINK
(mA)
Typical Operating Characteristics
35
1
4.0V
3.3V
10
60
100
85
CC
50,000
1.16400
1.16200
1.16000
1.15800
1.15600
1.15400
1.15200
1.15000
MIN
0.001
and 0.1 x V
0.01
0.1
10
1
0.001
1
+85°C +25°C
STANDBY SUPPLY CURRENT
0.01
V
CC
CC
vs. SCL FREQUENCY
.
- V
SCL FREQUENCY (Hz)
100
I
OUT:SOURCE
MAX
OH
-40°C
0.1
vs. I
OUT:SOURCE
(mA)
1
10,000
10
UNITS
2
C stan-
1,000,000
CC
100
,