Datasheet > ISL23318TFRUZ-T7A

ISL23318TFRUZ-T7A

更新时间： 2024-02-11 02:42:02

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
19页	1010K
描述
Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCPâ¢)

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DATASHEET

ISL23318

FN7887

Rev 0.00

July 26, 2011

Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCP™)

The ISL23318 is a volatile, low voltage, low noise, low power,

I C Bus™, 128 Taps, single digitally controlled potentiometer

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

logic on a monolithic CMOS integrated circuit.

Features

• 128 resistor taps

• I C serial interface

- No additional level translator for low bus supply

- Two address pins allow up to four devices per bus

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

• Power supply

I C bus interface. The potentiometer has an associated

- V = 1.7V to 5.5V analog power supply

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 ISL23318’s wiper will

always commence at mid-scale (64 tap position).

- V

LOGIC

= 1.2V to 5.5V I C bus/logic power supply

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

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

The low voltage, low power consumption, and small package

of the ISL23318 make it an ideal choice for use in battery

circuit and R is shorted to R internally

• Power-on preset to mid-scale (64 tap position)

• Shutdown and standby current <2.8µA max

operated equipment. In addition, the ISL23318 has a V

LOGIC

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 ISL23318 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 UTQFN 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

• Gain adjustment in battery powered instruments

• Trimming sensor circuits

• Power supply margining

• RF power amplifier bias compensation

10000

8000

6000

4000

V_REF

V_{REF_M}

ISL23318

ISL28114

2000

128

TAP POSITION (DECIMAL)

FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP

POSITION, 10k DCP

FIGURE 2. V

ADJUSTMENT

REF

FN7887 Rev 0.00

July 26, 2011

Page 1 of 19

12 3 4 5 6 7...19

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与ISL23318TFRUZ-T7A相关器件

型号	品牌	获取价格	描述	数据表
ISL23318TFRUZ-TK	RENESAS	获取价格	Single, 128-taps Low Voltage Digitally Contro
ISL23318TFRUZ-TK	INTERSIL	获取价格	Single, 128-taps Low Voltage Digitally Contro
ISL23318TFUZ	RENESAS	获取价格	Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCP™); MSOP10,
ISL23318TFUZ	INTERSIL	获取价格	Single, 128-taps Low Voltage Digitally Contro
ISL23318TFUZ-T7A	RENESAS	获取价格	Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCP™); MSOP10,
ISL23318UFRUZ-T7A	INTERSIL	获取价格	Single, 128-taps Low Voltage Digitally Contro
ISL23318UFRUZ-T7A	RENESAS	获取价格	Single, 128-taps Low Voltage Digitally Contro
ISL23318UFRUZ-TK	INTERSIL	获取价格	Single, 128-taps Low Voltage Digitally Contro
ISL23318UFRUZ-TK	RENESAS	获取价格	Single, 128-taps Low Voltage Digitally Controlled Potentiometer (XDCP™); MSOP10,
ISL23318UFUZ	INTERSIL	获取价格	Single, 128-taps Low Voltage Digitally Contro

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