MAX5160LEUA+ Maxim Integrated Products, MAX5160LEUA+ Datasheet - Page 6
![IC POT DGTL LO PWR 32 TAP 8-UMAX](/photos/1/39/13936/406-8-msop_sml.jpg)
MAX5160LEUA+
Manufacturer Part Number
MAX5160LEUA+
Description
IC POT DGTL LO PWR 32 TAP 8-UMAX
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5161LEZTT.pdf
(9 pages)
Specifications of MAX5160LEUA+
Taps
32
Resistance (ohms)
50K
Number Of Circuits
1
Temperature Coefficient
50 ppm/°C Typical
Memory Type
Volatile
Interface
3-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Resistance In Ohms
50K
Number Of Pots
Single
Taps Per Pot
32
Resistance
400 Ohms
Wiper Memory
Volatile
Digital Interface
Serial (3-Wire)
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
10 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
Low-Power, 32-Tap Digital Potentiometer in 8-Pin æMAX
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Tolerance
25 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Alternatively, use an op amp to provide buffering and
gain to the output of the MAX5160/MAX5161. Connect
the MAX5160 to the positive input of a noninverting op
amp (Figure 3) to select a portion of the input signal by
digitally controlling the wiper terminal. Figure 4 shows a
similar circuit for the MAX5161.
Low-Power Digital Potentiometers
Figure 3. MAX5160 Positive LCD Bias Control
Figure 5. Adjustable Gain Circuit: a) MAX5161; b) MAX5160
6
_______________________________________________________________________________________
GND
U/D
INC
CS
a)
H
+5V
+5V
L
MAX5160
U/D
V
INC
W
V
GND
DD
DD
V
IN
H
+5V
L
Alternative Positive
LCD Bias Control
GAIN 6
MAX5161
V
30V
CC
V
V
OUT
OUT
Figure 5 shows how to use the MAX5161 to digitally
adjust the gain of a noninverting op amp configuration.
Connect the MAX5161 in series with a resistor to ground
to form the adjustable gain control of a noninverting
amplifier. The MAX5160/MAX5161 have a low 5ppm/°C
ratiometric tempco that allows for a very stable adjust-
able gain configuration over temperature.
Figure 6 is the serial-interface timing diagram.
Figure 4. MAX5161 Positive LCD Bias Control
+5V
b)
INC
U/D
V
GND
DD
L
V
+5V
IN
H
L
W
MAX5160
MAX5161
H
V
CC
Adjustable Gain
Serial Interface
GAIN 6
30V
V
OUT
V
OUT