Rainbow-electronics DS3501 Manual de usuario

Busca en linea o descarga Manual de usuario para Hardware De La Computadora Rainbow-electronics DS3501. Rainbow Electronics DS3501 User Manual Manual de usuario

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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
2
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
2
C-Compatible Serial Interface
Address Pins Allow Up to Four DS3501s to Share
the Same I
2
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
2
C POT with Temp Sensor
and Lookup Table
______________________________________________
Maxim Integrated Products
1
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
NV
MEMORY
CONTROL
CIRCUITRY
AND ADDRESS
DECODE
TEMP
SENSOR
AND ADC
A1
A0
SDA
SCL
DECODER
LEVEL
SHIFTER
127
126
125
2
1
0
RH
RL
RW
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.
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Indice de contenidos

Pagina 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

Pagina 2

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

Pagina 3

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

Pagina 4

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

Pagina 5

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

Pagina 6

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

Pagina 7

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

Pagina 8

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

Pagina 9

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

Pagina 10

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

Pagina 11

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

Pagina 12

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

Pagina 13

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

Pagina 14

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

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