- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17647 > ISL23425WFVZ (Intersil)IC DGTL POT 256POS 10K 14TSSOP PDF資料下載
參數(shù)資料
| 型號： | ISL23425WFVZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 256POS 10K 14TSSOP |
| 標準包裝： | 960 |
| 系列： | XDCP™ |
| 接片： | 256 |
| 電阻（歐姆）： | 10k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標準值 125 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | 4 線 SPI（芯片選擇） |
| 電源電壓： | 1.2 V ~ 5.5 V，1.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | * |
| 封裝/外殼： | * |
| 供應商設備封裝： | * |
| 包裝： | * |
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)
ISL23425
The ISL23425 is a volatile, low voltage, low noise, low power,
256-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.
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 (128 tap position).
The low voltage, low power consumption, and small package
of the ISL23425 make it an ideal choice for use in battery
operated equipment. In addition, the ISL23425 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 ISL23425 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
Ω, 50kΩ or 100kΩ total resistance
SPI serial interface
- No additional level translator for low bus supply
- Daisy Chaining of multiple DCPs
Maximum supply current without serial bus activity
(standby)
- 4A @ VCC and VLOGIC = 5V
- 1.7A @ VCC and 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 SPI bus/logic power supply
Wiper resistance: 70
Ω 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 20, 2011
FN7873.0
相關PDF資料 |
PDF描述 |
|---|---|
| LB15SKW01-12-GJ | SWITCH PUSHBUTTON SPDT 3A 125V |
| FOXSDLF/040 | CRYSTAL 4.0 MHZ 20PF SMD |
| ISL23425UFVZ | IC DGTL POT 256POS 50K 14TSSOP |
| LB15SKW01-05-GJ | SWITCH PUSHBUTTON SPDT 3A 125V |
| ISL23425TFVZ | IC DGTL POT 256POS 100K 14TSSOP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL23425WFVZ-T7A | 功能描述:數(shù)字電位計 IC 256 TAPVOLATILE SPI DUAL FL RNG IND 14LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL23425WFVZ-TK | 功能描述:數(shù)字電位計 IC 256 TAP VOLATILE SPI DL FL RNG DCP 14LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL23428 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual, 128-Tap, Low Voltage Digitally Controlled Potentiometer (XDCP?) |
| ISL23428TFRUZ-T7A | 功能描述:數(shù)字電位計 IC 128 TAPVOLATILE SPI DUAL RNG IND 16LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| ISL23428TFRUZ-TK | 功能描述:數(shù)字電位計 IC 128 TAP VOLATILE SPI DL FL RNG DCP 16LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。