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23425WFVZ-TK PDF预览

23425WFVZ-TK

更新时间: 2024-01-20 23:12:32
品牌 Logo 应用领域
英特矽尔 - INTERSIL 电位器
页数 文件大小 规格书
21页 637K
描述
Dual, 128-Tap, Low Voltage Digitally Controlled Potentiometer (XDCP?)

23425WFVZ-TK 技术参数

生命周期:Transferred零件包装代码:TSSOP
包装说明:,针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.8
转换器类型:DIGITAL POTENTIOMETERJESD-30 代码:R-PDSO-G14
JESD-609代码:e3端子数量:14
封装主体材料:PLASTIC/EPOXY封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
表面贴装:YES端子面层:MATTE TIN
端子形式:GULL WING端子位置:DUAL
Base Number Matches:1

23425WFVZ-TK 数据手册

 浏览型号23425WFVZ-TK的Datasheet PDF文件第2页浏览型号23425WFVZ-TK的Datasheet PDF文件第3页浏览型号23425WFVZ-TK的Datasheet PDF文件第4页浏览型号23425WFVZ-TK的Datasheet PDF文件第5页浏览型号23425WFVZ-TK的Datasheet PDF文件第6页浏览型号23425WFVZ-TK的Datasheet PDF文件第7页 
Dual, 128-Tap, Low Voltage Digitally Controlled  
Potentiometer (XDCP™)  
ISL23428  
The ISL23428 is a volatile, low voltage, low noise, low power,  
128-tap, dual digitally controlled potentiometer (DCP) with an  
SPI Bus™ interface. It integrates two DCP cores, wiper switches  
and control logic on a monolithic CMOS integrated circuit.  
Features  
• Two potentiometers per package  
• 128 resistor taps  
• 10k 50kor 100ktotal resistance  
• SPI serial interface  
Each 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. Each potentiometer has an associated  
volatile Wiper Register (WRi, i = 0, 1) that can be directly written  
to and read by the user. The contents of the WRi controls the  
position of the wiper. When powered on, the wiper of each DCP  
will always commence at mid-scale (64 tap position).  
- No additional level translator for low bus supply  
- Daisy Chaining of multiple DCPs  
• Power supply  
- V = 1.7V to 5.5V analog power supply  
CC  
- V  
LOGIC  
= 1.2V to 5.5V SPI bus/logic power supply  
• Maximum supply current without serial bus activity  
(standby)  
The low voltage, low power consumption, and small package  
of the ISL23428 make it an ideal choice for use in battery  
- 4µA @ V and V  
CC LOGIC  
- 1.7µA @ V and V  
CC  
= 5V  
= 1.7V  
operated equipment. In addition, the ISL23428 has a V  
LOGIC  
LOGIC  
pin allowing down to 1.2V bus operation, independent from the  
• Shutdown Mode  
V
value. This allows for low logic levels to be connected  
CC  
- Forces the DCP into an end-to-end open circuit and RWi is  
connected to RLi internally  
directly to the ISL23428 without passing through a voltage  
level shifter.  
- Reduces power consumption by disconnecting the DCP  
resistor from the circuit  
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.  
• Wiper resistance: 70typical @ V = 3.3V  
CC  
• Power-on preset to mid-scale (64 tap position)  
• Extended industrial temperature range: -40°C to +125°C  
• 14 Ld TSSOP or 16 Ld UTQFN packages  
• Pb-free (RoHS compliant)  
Applications  
• Power supply margining  
• Trimming sensor circuits  
• Gain adjustment in battery powered instruments  
• RF power amplifier bias compensation  
10000  
8000  
6000  
4000  
VREF  
RH  
-
VREF_M  
RW  
ISL23428  
+
2000  
0
ISL28114  
RL  
0
32  
64  
96  
128  
TAP POSITION (DECIMAL)  
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP  
FIGURE 2. V  
ADJUSTMENT  
REF  
POSITION, 10kDCP  
August 25, 2011  
FN7904.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved  
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  
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