參數資料
| 型號： | ISL23328WFVZ-T7A |
| 廠商： | Intersil |
| 文件頁數： | 1/20頁 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 2CH 10K 14TSSOP |
| 標準包裝： | 1 |
| 系列： | XDCP™ |
| 接片： | 128 |
| 電阻（歐姆）： | 10k |
| 電路數： | 2 |
| 溫度系數： | 標準值 125 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： | 14-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 14-TSSOP |
| 包裝： | 標準包裝 |
| 其它名稱： | ISL23328WFVZ-T7ADKR |
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, 128-Tap, Low Voltage Digitally Controlled
Potentiometer (XDCP)
ISL23328
The ISL23328 is a volatile, low voltage, low noise, low power,
128-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 (64 tap position).
The low voltage, low power consumption, and small package
of the ISL23328 make it an ideal choice for use in battery
operated equipment. In addition, the ISL23328 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 ISL23328 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
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
Power supply
-VCC = 1.7V to 5.5V analog power supply
-VLOGIC = 1.2V to 5.5V I2C bus/logic power supply
Maximum supply current without serial bus activity
(standby)
- 3A @ 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
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
14 Ld TSSOP or 16 Ld UTQFN 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
ISTANCE
(
)
VREF_M
ISL28114
1 DCP
OF
ISL23328
+
-
VREF
RL1
RW1
RH1
August 19, 2011
FN7902.0
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL23328WFVZ-TK | 功能描述:數字電位計 IC 128 TAP VOLATILE I2C DL FL RNG DCP 14LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 |
| ISL23345 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad, 256 Tap, Low Voltage Digitally Controlled Potentiometer (XDCPa?￠) |
| ISL23345TFRZ | 功能描述:數字電位計 IC 256 TAP VOLATILE I2C QD FL RNG DCP 20LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 |
| ISL23345TFRZ-T7A | 功能描述:數字電位計 IC 256 TAPVOLATILE I2C QUAD FL RNG IND 20LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 |
| ISL23345TFRZ-TK | 功能描述:數字電位計 IC 256 TAP VOLATILE I2C QD FL RNG DCP 20LD RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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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