TPL0202 Datasheet, PDF (1/35 Pages) Texas Instruments – Dual Channel Digital Potentiometer

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TPL0202
SLIS135D – DECEMBER 2010 – REVISED OCTOBER 2015
TPL0202 256-Taps Dual Channel Digital Potentiometer With SPI and Non-Volatile Memory
1 Features
•1 Two Potentiometers With 256-Position Resolution
• Non-Volatile Memory Stores Wiper Settings
• 10-kΩ End-to-End Resistance (TPL0202-10)
• Fast Power-up Response Time: <100 µs
• ±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider
Mode)
• 12 ppm/°C Ratiometric Temperature Coefficient
• SPI Serial Interface
• 2.7 to 5.5 V Single-Supply Operation
• Operating Temperature Range From –40°C to
105°C
3 Description
The TPL0202 has two linear-taper digital
potentiometers (DPOTs) with 256 wiper positions.
Each potentiometer can be used as a three-terminal
potentiometer or as a two-terminal rheostat. The
TPL0202-10 has an end-to-end resistance of 10 kΩ.
This DPOT can be used as a mechanical
potentiometer replacement, allowing the user (or
software) to digitally control and adjust resistance.
The TPL0202 has non-volatile memory (EEPROM)
which can be used to store the wiper position for
automatic recall upon power-up. The internal
registers of the TPL0202 can be accessed using a
SPI-compatible digital interface.
2 Applications
• Adjustable Gain Amplifiers and Offset Trimming
• Adjustable Power Supplies
• Precision Calibration of Set Point Thresholds
• Sensor Trimming and Calibration
• Mechanical Potentiometer Replacement
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPL0202
WQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VDD
HA HB
SCLK
DIN
SPI INTERFACE
VOLATILE
WA
REGISTERS
CS
NON-VOLATILE
REGISTERS
GND
WB
LA
LB
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.