SPI INTERFACE

VOLATILE

REGISTERS

NON-VOLATILE

REGISTERS

HA

LA

HB

LB

WA

WB

VDD

GND

SCLK

DIN

CS

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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

3 Description

The

TPL0202

has

two

linear-taper

digital

1

•

Two Potentiometers With 256-Position Resolution

potentiometers (DPOTs) with 256 wiper positions.

•

Non-Volatile Memory Stores Wiper Settings

Each potentiometer can be used as a three-terminal

•

10-k

Ω End-to-End Resistance (TPL0202-10)

potentiometer or as a two-terminal rheostat. The

TPL0202-10 has an end-to-end resistance of 10 k

Ω.

•

Fast Power-up Response Time: <100 µs

•

±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider

This

DPOT

can

be

used

as

a

mechanical

Mode)

potentiometer replacement, allowing the user (or

software) to digitally control and adjust resistance.

•

12 ppm/°C Ratiometric Temperature Coefficient

The TPL0202 has non-volatile memory (EEPROM)

•

SPI Serial Interface

which can be used to store the wiper position for

•

2.7 to 5.5 V Single-Supply Operation

automatic

recall

upon

power-up.

The

internal

•

Operating Temperature Range From –40°C to

registers of the TPL0202 can be accessed using a

105°C

SPI-compatible digital interface.

2 Applications

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Adjustable Gain Amplifiers and Offset Trimming

TPL0202

WQFN (16)

3.00 mm × 3.00 mm

•

Adjustable Power Supplies

(1) For all available packages, see the orderable addendum at

•

Precision Calibration of Set Point Thresholds

the end of the data sheet.

•

Sensor Trimming and Calibration

•

Mechanical Potentiometer Replacement

Simplified Schematic

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.