DS3501UR 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

DS3501UR

High-Voltage, NV, I2C POT with Temp Sensor and Lookup Table

Maxim Integrated 

Rev 0; 1/07

High-Voltage, NV, I2C POT with Temp Sensor

and Lookup Table

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 I2C-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 VCOM Calibration

Linear and Nonlinear Compensation

Instrumentation and Industrial Controls

Mechanical POT Replacement

Optical Transceivers

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

Features

♦ 128 Wiper Tap Points

♦ Full-Scale Resistance: 10kΩ

♦ On-Chip Temperature Sensor and ADC

♦ 36-Byte Lookup Table (LUT)

♦ I2C-Compatible Serial Interface

♦ Address Pins Allow Up to Four DS3501s to Share

the Same I2C 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

Ordering Information

PART

TEMP RANGE

DS3501U+

-40°C to +100°C

DS3501U+T&R

-40°C to +100°C

+Denotes a lead-free package.

T&R denotes tape-and-reel.

PIN-PACKAGE

10 µSOP

10 µSOP

Functional Diagram

RH

127

SDA

VOLATILE

SCL

WIPER REGISTER

126

∑

DS3501

NV IVR

36-BYTE

LUT

NV

MEMORY

125

DECODER

LEVEL

SHIFTER

2

1

CONTROL

CIRCUITRY

A1

AND ADDRESS

A0

DECODE

TEMP

SENSOR

AND ADC

0

RL

RW

______________________________________________ Maxim Integrated Products 1

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.

Share Link: