DS3501

更新时间： 2024-01-26 10:29:14

品牌	Logo	应用领域
美信 - MAXIM		传感器温度传感器高压
页数	文件大小	规格书
14页	231K
描述
High-Voltage, NV, I2C POT with Temp Sensor and Lookup Table

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数据手册

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DS3501 数据手册

Rev 0; 1/07

High-Voltage, NV, I C POT with Temp Sensor

and Lookup Table

DS3501

General Description

Features

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

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

♦ 128 Wiper Tap Points

♦ Full-Scale Resistance: 10kΩ

Programming is accomplished by an I C-compatible

♦ On-Chip Temperature Sensor and ADC

♦ 36-Byte Lookup Table (LUT)

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.

♦ I C-Compatible Serial Interface

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.

♦ 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)

Applications

♦ 10-Pin μSOP Package

TFT-LCD V

Calibration

COM

Ordering Information

Linear and Nonlinear Compensation

Instrumentation and Industrial Controls

Mechanical POT Replacement

Optical Transceivers

PART

TEMP RANGE

-40°C to +100°C

PIN-PACKAGE

10 µSOP

DS3501U+

DS3501U+T&R

10 µSOP

+Denotes a lead-free package.

T&R denotes tape-and-reel.

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

Functional Diagram

127

126

125

SDA

VOLATILE

WIPER REGISTER

SCL

∑

DS3501

DECODER

LEVEL

SHIFTER

36-BYTE

LUT

NV IVR

MEMORY

CONTROL

CIRCUITRY

AND ADDRESS

DECODE

TEMP

SENSOR

AND ADC

______________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...14

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