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參數(shù)資料
| 型號： | ISL23348UFRZ-TK |
| 廠商： | Intersil |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 4CH 50K 20QFN |
| 標準包裝： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 128 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 4 |
| 溫度系數(shù)： | 標準值 65 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | I²C（設備位址） |
| 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： | 表面貼裝 |
| 封裝/外殼： | 20-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 20-QFN（3x4） |
| 包裝： | 帶卷 (TR) |
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
Quad, 128 Tap, Low Voltage Digitally Controlled
Potentiometer (XDCP)
ISL23348
The ISL23348 is a volatile, low voltage, low noise, low power,
128 tap, quad digitally controlled potentiometer (DCP) with an
I2C Bus interface. It integrates four 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, 2, 3) 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).
The low voltage, low power consumption, and small package
of the ISL23348 make it an ideal choice for use in battery
operated equipment. In addition, the ISL23348 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 ISL23348 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
Four potentiometers per package
128 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)
- 5A @ VCC and VLOGIC = 5V
- 2A @ 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 I2C bus/logic power supply
Wiper resistance: 70 typical @ VCC = 3.3V
Power-on preset to mid-scale (64 tap position)
Extended industrial temperature range: -40°C to +125°C
20 Ld TSSOP or 20 QFN 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
032
64
96
128
TAP POSITION (DECIMAL)
RES
IS
T
ANCE
(
)
VREF_M
ISL28114
1 DCP
OF
ISL23348
+
-
VREF
RL1
RW1
RH1
August 24, 2011
FN7903.1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL23348UFVZ | 功能描述:數(shù)字電位計 IC 128 TAP VOLATILE I2C QD FL RNG DCP 20LD 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 |
| ISL23348UFVZ-T7A | 功能描述:數(shù)字電位計 IC 128 TAPVOLATILE I2C QUAD RNG IND 20LD 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 |
| ISL23348UFVZ-TK | 功能描述:數(shù)字電位計 IC 128 TAP VOLATILE I2C QD FL RNG DCP 20LD 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 |
| ISL23348WFRZ | 功能描述:數(shù)字電位計 IC 128 TAP VOLATILE I2C QD FL RNG DCP 20LD 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 |
| ISL23348WFRZ-T7A | 功能描述:數(shù)字電位計 IC 128 TAPVOLATILE I2C QUAD RNG IND 20LD 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 |
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