MAX5395 Datasheet PDF - Maxim Integrated
Part Number | MAX5395 | |
Description | Low-Voltage Linear Taper Digital Potentiometer | |
Manufacturers | Maxim Integrated | |
Logo | ||
There is a preview and MAX5395 download ( pdf file ) link at the bottom of this page. Total 17 Pages |
Preview 1 page No Preview Available ! MAX5395
Single, 256-Tap Volatile, I2C, Low-Voltage Linear
Taper Digital Potentiometer
General Description
The MAX5395 single, 256-tap volatile, low-voltage
linear taper digital potentiometer offers three end-to-
end resistance values of 10kΩ, 50kΩ, and 100kΩ.
Potentiometer terminals are independent of supply for
voltages up to 5.25V with single-supply operation from
1.7V to 5.5V (charge pump enabled). User-controlled
shutdown modes allow the H, W, or L terminal to be
opened with the wiper position set to zero-code, mid-
code, full-code, or the value contained in the wiper
register. Ultra-low-quiescent supply current (< 1µA) can
be achieved for supply voltages between 2.6V and 5.5V
by disabling the internal charge pump and not allowing
potentiometer terminals to exceed the supply voltage by
more than 0.3V. The MAX5395 provides a low 50ppm/°C
end-to-end temperature coefficient and features an I2C
serial interface.
The small package size, low operating supply voltage,
low supply current, and automotive temperature range
of the MAX5395 make the device uniquely suited for the
portable consumer market, battery-backup industrial
applications, and automotive market.
The MAX5395 is available in a lead-free, 8-pin TDFN
(2mm x 2mm) package. The device operates over the
-40°C to +125°C automotive temperature range.
Ordering Information appears at end of data sheet.
Features
S Single Linear Taper 256-Tap Positions
S 10kI, 50kI, and 100kI End-to-End Resistance
S 1.7V to 5.5V Extended Single Supply
S 0 to 5.25V H, W, L Operating Voltage Independent
of VDD
S 1µA (typ) Supply Current in Low-Power Mode
S ±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy
S Power-On Sets Wiper to Midscale
S 50ppm/NC End-to-End Temperature Coefficient
S 5ppm/NC Ratiometric Temperature Coefficient
S -40NC to +125NC Operating Temperature Range
S 2mm x 2mm, 8-Pin TDFN Package
S I2C-Compatible Serial Interface
Applications
Portable Electronics
System Calibration
Battery-Powered Systems
Automotive Electronics
Mechanical Potentiometer Replacement
Typical Operating Circuit
ADDR0
SDA
SCL
VDD 1.7V TO 5.5V
(CHARGE PUMP ENABLED) H
MAX5395
I2C
INTERFACE
W
+5V
VS
MAX4250
VO
GND L
R1
VO/ VS = 1 + RMAX5395/R1
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX5395.related
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6393; Rev 1; 9/12
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MAX5395
Single, 256-Tap Volatile, I2C, Low-Voltage Linear
Taper Digital Potentiometer
Typical Operating Characteristics
(TVADD==+215.8°VC,, TuAnl=es+s2o5tNhCe,rwuinsleesnsootethde.)rwise noted.)
SUPPLY CURRENT
SUPPLY CURRENT vs. TEMPERATURE
vs. DIGITAL INPUT VOLTAGE
40
VDD = 1.8V
35
30
25
20
15
10
5
2600
2400
2200 VDD = 3.3V
2000 (LOW-HIGH)
1800
1600
1400
1200
1000 VDD = 1.8V
800 (HIGH-LOW)
600
400
200
VDD = 5V
(LOW-HIGH)
VDD = 5V
(HIGH-LOW)
VDD = 3.3V
(HIGH-LOW)
VDD = 1.8V
(LOW-HIGH)
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
01234
TEMPERATURE (°C)
DIGITAL INPUT VOLTAGE (V)
5
SUPPLY CURRENT vs. INPUT VOLTAGE
40
35 TA = +125°C
30
TA = +25°C
25
20
15
10 TA = -40°C
5
0
1.70
2.65 3.60 4.55
INPUT VOLTAGE (V)
5.50
RESISTANCE (W-TO-L)
vs. TAP POSITION (10kI)
10
9
8
7
6
5
4
3
2
1
0
0 32 64 96 128 160 192 224 256
TAP POSITION
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
0
WIPER RESISTANCE
vs. WIPER VOLTAGE
VDD = 2.6V, QP OFF
VDD = 5V, QP OFF
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
WIPER VOLTAGE (V)
RESISTANCE (W-TO-L)
vs. TAP POSITION (50kI)
50
45
40
35
30
25
20
15
10
5
0
0 32 64 96 128 160 192 224 256
TAP POSITION
WIPER RESISTANCE
vs. WIPER VOLTAGE
40
35 VDD = 1.8V, QP ON
30
25
20
15
10
5
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
WIPER VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
0
RESISTANCE (W-TO-L)
vs. TAP POSITION (100kI)
32 64 96 128 160 192 224 256
TAP POSITION
END-TO-END RESISTANCE PERCENTAGE
CHANGE vs. TEMPERATURE
0.8
0.6
0.4 100kI
0.2
50kI
0
10kI
-0.2
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Maxim Integrated
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MAX5395 electronic component. |
Information | Total 17 Pages | |
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