Datasheet > ISL22317

ISL22317

更新时间： 2023-12-20 18:45:51

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
15页	936K
描述
Precision Single Digitally Controlled Potentiometer (XDCP?) Low Noise, Low Power, I2C? Bus, 128 Taps

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数据手册

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ISL22317 数据手册

DATASHEET

ISL22317

FN6912

Rev 1.00

April 15, 2010

Precision Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low

Power, I C™ Bus, 128 Taps

The digitally controlled potentiometer is implemented with a

Features

combination of resistor elements and CMOS switches. The

• Precision Digitally Controlled Potentiometer

position of the wiper is controlled by the user through the I C

- 99% Typical Accuracy Of Resistance Over Operational

Conditions

bus interface. The potentiometer has an associated volatile

Wiper Register (WR) and a non-volatile Initial Value Register

(IVR) that can be directly written to and read by the user. The

contents of the WR control the position of the wiper. At

power up, the device recalls the contents of the DCP’s IVR

to the WR.

- Zero-Compensated Wiper Resistance

• Integrated Digitally Controlled Potentiometer

- 128-Tap Positions

- I C Serial Interface

- Pin Selectable Slave Address

The highly precise ISL22317 features a low end-to-end

temperature coefficient of TC_Ref ±10ppm/°C and precise

resistance selection. It maintains less than ±1% typical

variance from the ideal resistance at each wiper position

providing 99% accuracy of selected resistance value. This

highly accurate DCP eliminates the need for complex

algorithms to guarantee precision. The ISL22317 allows the

user to dial in an accurate resistance and the EEPROM

memory stores the set value for life, or until changed by the

user.

- 10k50kand 100kTotal Resistance

- Monotonic Over-Temperature

- Non-Volatile EEPROM Storage of Wiper Position

- 0 to VCC Terminal Voltage

• Single 2.7V to 5.5V Supply

• High Reliability

- 50 Years Retention @  +55°C

- 15 Years Retention @ +125°C

- 1,000,000 Cycles Endurance

An external 0.5% or better reference resistor must be

attached to the ISL22317. The ISL22317 will mirror both the

precise resistance and temperature coefficient of the

external resistor.

• 3mmx3mm Thin DFN Package – 0.75mm Max Thickness,

0.65mm Pitch

• Pb-Free (RoHS Compliant)

The DCP can be used as a three-terminal potentiometer or

as a two-terminal variable resistor in a wide variety of

applications including control, parameter adjustments, and

signal processing.

Applications

• Setting Precise Current Values for DC Margining and

Backlight Control

Pinout

• Replaces Complex Compensation Circuitry That Stores

Values in Look-up Tables Needed for Precise Resistor

Setting

ISL22317

(10 LD TDFN)

TOP VIEW

• Setting Precise Resistance Values for Test and

Measurement Circuits

SCL

VCC

• Adjust Specific Resistances in Analog Circuits

• Precise Calibration and Fine Tune-Up

SDA

REF_A

REF_B

GND

FN6912 Rev 1.00

April 15, 2010

Page 1 of 15

12 3 4 5 6 7...15

中文翻译

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与ISL22317相关器件

型号	品牌	获取价格	描述	数据表
ISL22317_10	INTERSIL	获取价格	Precision Single Digitally Controlled Potenti
ISL22317TFRTZ	INTERSIL	获取价格	Precision Single Digitally Controlled Potenti
ISL22317UFRTZ	INTERSIL	获取价格	Precision Single Digitally Controlled Potenti
ISL22317UFRTZ	RENESAS	获取价格	Precision Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power
ISL22317UFRTZ-TK	RENESAS	获取价格	Precision Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power
ISL22317WFRTZ	INTERSIL	获取价格	Precision Single Digitally Controlled Potenti
ISL22317WFRTZ-TK	RENESAS	获取价格	Precision Single Digitally Controlled Potentiometer; Low Noise, Low Power, I<sup>2&l
ISL22319	INTERSIL	获取价格	Low Noise, Low Power, I2C Bus, 128 Taps, Wiper Only
ISL22319UFU8Z	INTERSIL	获取价格	Low Noise, Low Power, I2C Bus, 128 Taps, Wiper Only
ISL22319UFU8Z	RENESAS	获取价格	50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO8, ROHS COM

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