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| 型号： | ISL23325WFRUZ-TK |
| 厂商： | Intersil |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 256POS 10K 16UTQFN |
| 标准包装： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 256 |
| 电阻（欧姆）： | 10k |
| 电路数： | 2 |
| 温度系数： | 标准值 125 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.2 V ~ 5.5 V，1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
1
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
Dual, 256-Tap, Low Voltage Digitally Controlled
Potentiometer (XDCP)
ISL23325
The ISL23325 is a volatile, low voltage, low noise, low power,
256-Tap, dual digitally controlled potentiometer (DCP) with an
I2C Bus interface. It integrates two DCP cores, wiper switches
and control logic on a monolithic CMOS integrated circuit.
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 I2C
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 (128 tap position).
The low voltage, low power consumption, and small package
of the ISL23325 make it an ideal choice for use in battery
operated equipment. In addition, the ISL23325 has a VLOGIC
pin allowing down to 1.2V bus operation, independent from the
VCC value. This allows for low logic levels to be connected
directly to the ISL23325 without passing through a voltage
level shifter.
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.
Power supply margining
Trimming sensor circuits
Gain adjustment in battery powered instruments
RF power amplifier bias compensation
Features
Two potentiometers per package
256 resistor taps
10k 50k or 100k total resistance
I2C serial interface
- No additional level translator for low bus supply
- Three address pins allow up to eight devices per bus
Maximum supply current without serial bus activity
(standby)
- 3A @ VCC and VLOGIC = 5V
- 1.7A @ VCCand VLOGIC = 1.7V
Shutdown Mode
- Forces the DCP into an end-to-end open circuit and RWi is
connected to RLi internally
- Reduces power consumption by disconnecting the DCP
resistor from the circuit
Power supply
-VCC = 1.7V to 5.5V analog power supply
-VLOGIC = 1.2V to 5.5V I2C bus/logic power supply
Wiper resistance: 70 typical @ VCC = 3.3V
Power-on preset to mid-scale (128 tap position)
Extended industrial temperature range: -40°C to +125°C
14 Ld TSSOP or 16 Ld TQFN packages
Pb-free (RoHS Compliant)
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP
POSITION, 10k DCP
FIGURE 2. VREF ADJUSTMENT
0
2000
4000
6000
8000
10000
TAP POSITION (DECIMAL)
R
E
SISTANCE
(
)
0
64
128
192
256
VREF_M
ISL28114
1 DCP
OF
ISL23325
+
-
VREF
RL1
RW1
RH1
June 21, 2011
FN7870.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL23325WFVZ | 功能描述:数字电位计 IC 256 TAP VOLATILE I2C DL FL RNG DCP 14LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23325WFVZ-T7A | 功能描述:数字电位计 IC 256 TAPVOLATILE I2C DUAL FL RNG IND 14LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23325WFVZ-TK | 功能描述:数字电位计 IC 256 TAP VOLATILE I2C DL FL RNG DCP 14LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| ISL23328 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual, 128-Tap, Low Voltage Digitally Controlled Potentiometer (XDCPa?￠) |
| ISL23328TFRUZ-T7A | 功能描述:数字电位计 IC 128 TAPVOLATILE I2C DUAL RNG IND 16LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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