Datasheet > ISL23415

ISL23415

更新时间： 2024-09-15 11:11:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电位器
页数	文件大小	规格书
19页	935K
描述
Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)

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ISL23415 数据手册

Single, Low Voltage Digitally Controlled Potentiometer

(XDCP™)

ISL23415

The ISL23415 is a volatile, low voltage, low noise, low power,

SPI™ bus, 256 taps, single digitally controlled potentiometer

(DCP), which integrates DCP core, wiper switches and control

logic on a monolithic CMOS integrated circuit.

Features

• 256 resistor taps

• SPI serial interface

- No additional level translator for low bus supply

- Daisy Chaining of multiple DCP

The digitally controlled potentiometer is implemented with a

combination of resistor elements and CMOS switches. The

position of the wipers are controlled by the user through the

SPI bus interface. The potentiometer has an associated

volatile Wiper Register (WR) that can be directly written to and

read by the user. The contents of the WR controls the position

of the wiper. When powered on, the ISL23415’s wiper will

always commence at mid-scale (128 tap position).

• Wiper resistance: 70Ω typical @ V = 3.3V

• Shutdown Mode - forces the DCP into an end-to-end open

circuit and RW is shorted to RL internally

• Power-on preset to mid-scale (128 tap position)

• Standby current <2.5µA max

• Shutdown current <2µA

• Power supply

The low voltage, low power consumption, and small package

of the ISL23415 make it an ideal choice for use in battery

- V = 1.7V to 5.5V analog power supply

operated equipment. In addition, the ISL23415 has a V

LOGIC

- V

LOGIC

= 1.2V to 5.5V SPI bus/logic power supply

pin allowing down to 1.2V bus operation, independent from the

value. This allows for low logic levels to be connected

• DCP terminal voltage from 0V to V

directly to the ISL23415 without passing through a voltage

level shifter.

• 10kΩ, 50kΩ or 100kΩ total resistance

• Extended industrial temperature range: -40°C to +125°C

• 10 Ld MSOP or 10 Ld µTQFN packages

• 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

• Power supply margining

• RF power amplifier bias compensation

• LCD bias compensation

• Gain adjustment in battery powered instruments

• Portable medical equipment calibration

10000

8000

6000

4000

2000

V_REF

V_{REF_M}

ISL23415

ISL28114

100

150

200

250

TAP POSITION (DECIMAL)

FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP

POSITION, 10k

FIGURE 2. V

ADJUSTMENT

REF

December 15, 2010

FN7780.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) and XDCP are trademarks owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...19

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与ISL23415相关器件

型号	品牌	获取价格	描述	数据表
ISL23415_11	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415TFRUZ-T7A	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415TFRUZ-TK	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415TFUZ	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415TFUZ-T	RENESAS	获取价格	100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10, ROHS C
ISL23415UFRUZ-T7A	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415UFRUZ-TK	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415UFUZ	INTERSIL	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP?)
ISL23415UFUZ	RENESAS	获取价格	Single, Low Voltage Digitally Controlled Potentiometer (XDCP™); MSOP10, uTQFN10;
ISL23415UFUZ-T	RENESAS	获取价格	50K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10, ROHS CO

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