Datasheet MAX5160 (Maxim)

19-1435; Rev 2a; 2/01
Low-Power Digital Potentiometers MAX5160/MAX5161 General Description Features
The MAX5160/MAX5161 linear-taper digital potentiome- ♦
32 Tap Positions
ters perform the same function as a mechanical poten- tiometer or a variable resistor. They consist of a fixed ♦
50k
Ω
, 100k
Ω
, and 200k
Ω
Resistance Values
resistor and a wiper contact with 32 tap points that are ♦
400
Ω
Wiper Resistance
digitally controlled by three lines for the 8-pin MAX5160 or by two lines for the 6-pin MAX5161. ♦
±25% Resistance Tolerance
These parts are ideal for applications requiring digitally ♦
3-Wire Serial Data Input
controlled resistors. Three resistance values are avail- ♦
±1LSB DNL
able for each part type: 50kΩ, 100kΩ, and 200kΩ. A nominal resistor temperature coefficient of 50ppm/°C ♦
±0.5LSB INL
end-to-end and only 5ppm/°C ratiometric makes the ♦
100nA Supply Current
MAX5160 ideal for applications requiring a low-temper- ature-coefficient variable resistor, such as low-tempco, ♦
+2.7V to +5.5V Single-Supply Operation
adjustable-gain circuit configurations. ♦
Power-On Reset: Wiper Goes to Midscale
The MAX5160 is available in an 8-pin µMAX package,
(position 16)
and the MAX5161 is available in a 6-pin SOT23 pack- age. Both devices are guaranteed over the extended- ♦
±2kV ESD Protection
industrial temperature range (-40°C to +85°C). ♦
Small-Footprint Packages Applications 6-Pin SOT23 (MAX5161) 8-Pin µMAX (MAX5160)
LCD Screen Adjustment ♦
Glitchless Switching Between the Resistor Taps
Volume Control Mechanical Potentiometer Replacement
Ordering Information Selector Guide PIN- R PART TEMP. RANGE PACKAGE (k
Ω
) TOP R PART MAX5160
NEUA -40°C to +85°C 8 µMAX 200
MARK (k
Ω
)
MAX5160MEUA -40°C to +85°C 8 µMAX 100
MAX5160
NEUA — 200 MAX5160LEUA -40°C to +85°C 8 µMAX 50 MAX5160MEUA — 100
MAX5161
NEZT -40°C to +85°C 6 SOT23 200 MAX5160LEUA — 50 MAX5161MEZT -40°C to +85°C 6 SOT23 100
MAX5161
NEZT AAAC 200 MAX5161LEZT -40°C to +85°C 6 SOT23 50 MAX5161MEZT AAAB 100 MAX5161LEZT AAAA 50
Functional Diagram Pin Configurations
H TOP VIEW VDD GND MAX5160 MAX5161 L 1 6 VDD INC 1 8 VDD CS U/D 2 7 CS MAX5161 UP/DN POSITION MAX5160 H 2 5 INC INC W H 3 6 L COUNTER DECODER U/D GND 4 5 W GND 3 4 U/D µ
MAX SOT23-6
L
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