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參數(shù)資料
| 型號： | ISL90461WIH627Z-TK |
| 廠商： | Intersil |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC XDCP 32-TAP 10KOHM SOT23-6 |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 32 |
| 電阻（歐姆）： | 10k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 ±35 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | 2 線串行（芯片選擇，增/減） |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-6 |
| 包裝： | 帶卷 (TR) |
5
FN8229.3
October 14, 2005
Pin Descriptions
RH and RL
The ISL90461 contains a digital potentiometer configured as
a variable resistor. The wiper of the potentiometer is tied to
one end of the potentiometer at terminal RH, and the RL pin
is the other terminal of the potentiometer. The resistance
from the RH pin to the RL pin will vary with the potentiometer
setting. At the highest setting the resistance will be
maximum (Rtot) and at the lowest setting it will be minimum.
As the wiper position is incremented, the wiper will move
from the Low terminal to the High terminal.
Up/Down (U/D)
The U/D input controls the direction of the wiper movement
and whether the counter is incremented or decremented.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in volatile memory when CS
is returned HIGH. When CS is high, the device is placed in
low power standby mode.
Principles of Operation
There are two sections of the ISL90461: the input control,
counter and decode section; and the resistor array. The input
control section operates just like an up/down counter. The
output of this counter is decoded to turn on a single
electronic switch connecting a point on the resistor array to
the wiper output. The resistor array is comprised of 31
individual resistors connected in series. At either end of the
array and between each resistor is an electronic switch that
transfers the connection at that point to the wiper. The wiper
is connected to the RH terminal, forming a variable resistor
from RH to RL.
The direction of the wiper movement is defined when the
device is selected. If during CS transition from High to Low
the U/D input is LOW, the wiper will move down on each
rising edge of U/D toggling. Similarly, the wiper will move up
on each rising edge of U/D toggling if, during CS transition
from High to Low, the U/D input is High.
The wiper, when at either fixed terminal, acts like its
mechanical equivalent and does not move beyond the last
position. That is, the counter does not wrap around when
clocked to either extreme.
If the wiper is moved several positions, multiple taps are
connected to the wiper for tSETTLE (U/D to RH change). The
2-terminal resistance value for the device can temporarily
change by a significant amount if the wiper is moved several
positions.
CS
U/D
RH - RL
tCU
tCI
tIL
tIH
tIC
tSETTLE
FIGURE 2. SERIAL INTERFACE TIMING DIAGRAM, DECREMENT
ISL90461
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| ISL90461UIH627Z-TK | IC XDCP 32-TAP 50KOHM SOT23-6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL90462 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digitally Controlled Potentiometer (XDCP) |
| ISL90462TIE627 | 制造商:Intersil Corporation 功能描述: |
| ISL90462TIE627-TK | 功能描述:IC XDCP 32-TAP 100KOHM SC70-6 RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲(chǔ)器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| ISL90462TIE627Z-TK | 功能描述:IC XDCP 32-TAP 100KOHM SC70-6 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| ISL90462TIH627-TK | 功能描述:IC XDCP 32-TAP 100KOHM SOT23-6 RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲(chǔ)器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
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