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參數(shù)資料
| 型號： | CAT5132ZI-50-GT3 |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 0K |
| 描述： | IC POT DPP 15V 128TAP I2C 10MSOP |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 接片： | 128 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 300 ppm/°C |
| 存儲器類型： | 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： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-MSOP |
| 包裝： | 帶卷 (TR) |
CAT5132
http://onsemi.com
11
POTENTIOMETER OPERATION
Power-On
The CAT5132 is a 128-position, digital controlled
potentiometer. When applying power to the CAT5132, VCC
must be supplied prior to or simultaneously with V+. At the
same time, the signals on RH, RW and RL terminals should
not exceed V+. If V+ is applied before VCC, the electronic
switches are powered in the absence of the switch control
signals, that could result in multiple switches being turned
on. This causes unexpected wiper settings and possible
current overload of the potentiometer. When VCC is applied
the device turns on at the mid-point wiper location (64) until
the wiper register can be loaded with the nonvolatile
memory location previously stored in the device. After the
nonvolatile memory data is loaded into the wiper register the
wiper location will change to the previously stored wiper
position.
At power-down, it is recommended to turn-off first the
signals on RH, RW and RL, followed by V+ and, after that,
VCC, in order to avoid unexpected transmissions of the
wiper and uncontrolled current overload of the
potentiometer.
The end-to-end nominal resistance of the potentiometer
has 128 contact points linearly distributed across the total
resistor. Each of these contact points is addressed by the 7 bit
wiper register which is decoded to select one of these 128
contact points.
Each contact point generates a linear resistive value
between the 0 position and the 127 position. These values
can be determined by dividing the end-to-end value of the
potentiometer by 127. In the case of the 10 k
W potentiometer
~79
W is the resistance between each wiper position.
However in addition to the ~79
W for each resistive segment
of the potentiometer, a wiper resistance offset must be
considered. Table 19 shows the effect of this value and how
it would appear on the wiper terminal.
This offset will appear in each of the CAT5132 end-to-end
resistance values in the same way as the 10 k
W example.
However resistance between each wiper position for the
50 k
W version will be ~395 W and for the 100 kW version
will be ~790
W.
Table 19. POTENTIOMETER RESISTANCE AND
WIPER RESISTANCE OFFSET EFFECTS
Position
Typical RW to RL Resistance for 10 kW
Digital POT
00
70 W or
0 W + 70 W
01
149 W or
79 W + 70 W
63
5,047 W or
4,977 W + 70 W
127
10,070 W or
10,000 W + 70 W
Position
Typical RW to RH Resistance for 10 kW
Digital POT
00
10,070 W or
10,000 W + 70 W
64
5,047 W or
4,977 W + 70 W
126
149 W or
79 W + 70 W
127
70 W or
0 W + 70 W
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參數(shù)描述 |
|---|---|
| CAT5133ZGI-10 | 制造商:Catalyst Semiconductor 功能描述: |
| CAT5133ZI-10-G | 功能描述:數(shù)字電位計(jì) IC Ind Temp 10K 2-Wire 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5133ZI-10-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP, 15V, 128 taps Up/Down 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5136SDI-50GT3 | 功能描述:IC DPP I2C 128TAP VOL 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:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:易失 接口:6 線串行（芯片選擇，遞增，增/減） 電源電壓:2.6 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(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| CAT5137SDI-00GT3 | 功能描述:IC DPP I2C 128TAP VOL 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:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):2 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:易失 接口:6 線串行（芯片選擇，遞增，增/減） 電源電壓:2.6 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(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
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