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WMS7140

Features: • Drop-in replacement for many popular parts• Single linear-taper channel• 16 taps• 10K, 50K and 100K end-to-end resistance• VSS to VDD terminal voltages• Automatic recall of wiper position when power-on• Potentiometer control through Up/Down (3-...

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SeekIC No. : 004546296 Detail

WMS7140: Features: • Drop-in replacement for many popular parts• Single linear-taper channel• 16 taps• 10K, 50K and 100K end-to-end resistance• VSS to VDD terminal voltages̶...

WMS7140 Data Sheet

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Part Number:
WMS7140
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/20

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Product Details

Description



Features:

• Drop-in replacement for many popular parts
• Single linear-taper channel
• 16 taps
• 10K, 50K and 100K end-to-end resistance
• VSS to VDD terminal voltages
• Automatic recall of wiper position when power-on
• Potentiometer control through Up/Down (3-wire) serial interface
• Endurance 100,000 cycles
• Data retention 100 years
• Package options:
- 8-pin PDIP, SOIC or MSOP
• Industrial temperature range: -40° to 85°C
• Single supply operation : 2.7V to 5.5V


Pinout

Connection Diagram


Specifications

Conditions Values
Junction temperature 150
Storage temperature -65º to +150
Voltage applied to any pad (Vss 0.3V) to (VDD + 0.3V)
Lead temperature (soldering 10 seconds) 300
VSS VDD -0.3 to 7.0V



Description

The WMS7140/7141 is a single channel 16-tap non-volatile linear digital potentiometer available in 10K, 50K and 100K resistance. The device consists of Up/Down serial interface, tap register, decoder, resistor array, wiper switches, NV memory and control logics.

The WMS7140 device can be configured as a two-terminal variable resistor or a three-terminal voltage divider without an output buffer, but the WMS7141 device, which has a built-in output buffer, can only be configured as a three-terminal voltage divider. Both devices can be used in a wide variety of applications.

The output of the potentiometer of the WMS7140 is determined by its wiper position, which varies linearly between its end terminals, RA/VA and RB/VB. The wiper position, Rw/Vw, is controlled by Up/Down serial interface (CS, INC and U/D) through the Tap Register (TR). In addition, the wiper position can also be stored into a non-volatile memory location (NVMEM0), which is then automatically recalled upon power up.




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