Rainbow-electronics DS3501 Bedienungsanleitung PDF herunterladen

General Description

The DS3501 is a 7-bit, nonvolatile (NV) digital poten-

tiometer featuring an output voltage range of up to 15.5V.

Programming is accomplished by an I

C-compatible

interface, which can operate at speeds of up to 400kHz.

External voltages are applied at the RL and RH inputs to

define the lowest and highest potentiometer outputs.

The DS3501 contains an on-chip temperature sensor

and associated analog-to-digital converter (ADC). The

ADC output addresses a 36-word NV lookup table

(LUT). The LUT output can drive the pot directly or be

added to an NV initial-value register (IVR) to drive the

pot. This flexible LUT-based architecture allows the

DS3501 to provide a temperature-compensated poten-

tiometer output with arbitrary slope.

Applications

TFT-LCD V

COM

Calibration

Linear and Nonlinear Compensation

Instrumentation and Industrial Controls

Mechanical POT Replacement

Optical Transceivers

Features

♦ 128 Wiper Tap Points

♦ Full-Scale Resistance: 10kΩ

♦ On-Chip Temperature Sensor and ADC

♦ 36-Byte Lookup Table (LUT)

♦ I

C-Compatible Serial Interface

♦ Address Pins Allow Up to Four DS3501s to Share

the Same I

C Bus

♦ Digital Operating Voltage: 2.7V to 5.5V

♦ Analog Operating Voltage: 4.5V to 15.5V

♦ Operating Temperature: -40°C to +100°C

♦ Pin and Software Compatible with ISL95311

(Default Mode)

♦ 10-Pin μSOP Package

DS3501

High-Voltage, NV, I

C POT with Temp Sensor

and Lookup Table

______________________________________________

Maxim Integrated Products

Rev 0; 1/07

Denotes a lead-free package.

T&R denotes tape-and-reel.

Ordering Information

PART TEMP RANGE PIN-PACKAGE

DS3501U+ -40°C to +100°C 10 µSOP

DS3501U+T&R -40°C to +100°C 10 µSOP

VOLATILE

WIPER REGISTER

NV IVR

36-BYTE

LUT

MEMORY

CONTROL

CIRCUITRY

AND ADDRESS

DECODE

TEMP

SENSOR

AND ADC

SDA

SCL

∑

DECODER

LEVEL

SHIFTER

127

126

125

DS3501

Functional Diagram

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

1 2 3 4 5 6 ... 13 14

Inhaltsverzeichnis

Seite 1 - C POT with Temp Sensor

General DescriptionThe DS3501 is a 7-bit, nonvolatile (NV) digital poten-tiometer featuring an output voltage range of up to 15.5V.Programming is acco

Seite 2

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table10 ____________________________________________________________________Standby Mode an

Seite 3

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table____________________________________________________________________ 11Slave devices:

Seite 4

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table12 ____________________________________________________________________minate communic

Seite 5

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table____________________________________________________________________ 13Reading multipl

Seite 6

VCC2.7VGNDRLRWV+RHSCLI2CCLCDVCOMR1G1B1GATE 1GATE 2GATE 3CSTORTFTA1A015.0VSDADS3501Typical Operating Circuit10987612345SCLV+RLRWA1VCCGNDSDATOP VIEWRHA0

Seite 7

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table2 _____________________________________________________________________ABSOLUTE MAXIMU

Seite 8

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table_____________________________________________________________________ 3ANALOG VOLTAGE

Seite 9

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table4 _____________________________________________________________________NONVOLATILE MEM

Seite 10

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table_____________________________________________________________________5Typical Operatin

Seite 11

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table6 _____________________________________________________________________I2CINTERFACEWIP

Seite 12

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table_____________________________________________________________________ 7Detailed Descri

Seite 13

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table8 _____________________________________________________________________LUT ModeLUT Mod

Seite 14

DS3501High-Voltage, NV, I2C POT with Temp Sensorand Lookup Table_____________________________________________________________________ 9falls on the bo

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Inhaltsverzeichnis

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