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參數(shù)資料
| 型號(hào)： | CAT5137SDI-00GT3 |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 9/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DPP I2C 128TAP VOL SC70-6 |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 接片： | 128 |
| 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： | 易失 |
| 接口： | I²C |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | * |
| 封裝/外殼： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 包裝： | * |
CAT5136, CAT5137, CAT5138
http://onsemi.com
8
Table 12. READ OPERATION
CAT5136 and CAT5137
ST
AR
T
1st byte
ACK
2nd byte
ACK
ST
AR
T
3rd byte
ACK
4th byte
NoACK
ST
OP
SLAVE
ADDRESS
Wb
ADDRESS
BYTE
SLAVE ADDRESS
R
OUTPUT DATA BYTE
S 0 1 0 1 1 1 0 0 A 0 0 0 0 0 0 0 0 A S 0
1
0
1
0
1 A 0 D6 D5 D4 D3 D2 D1 D0 NA P
CAT5138
ST
AR
T
1st byte
ACK
2nd byte
ACK
ST
AR
T
3rd byte
ACK
4th byte
NoACK
ST
OP
SLAVE
ADDRESS
Wb
ADDRESS
BYTE
SLAVE ADDRESS
R
OUTPUT DATA BYTE
S 0 1 1 1 1 1 0 0 A 0 0 0 0 0 0 0 0 A S 0
1
0
1 A 0 D6 D5 D4 D3 D2 D1 D0 NA P
POTENTIOMETER OPERATION
CAT5136, CAT5137, CAT5138 are a family of a
128-position, digital controlled potentiometers. When VDD
is applied, the device automatically turns on at the mid-point
wiper location (64).
At power-down, it is recommended to turn-off first the
signals on RH, RW and RL, followed by VDD, in order to
avoid unexpected transitions 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 50 k
W
potentiometer ~390
W is the resistance between each wiper
position. However in addition to the ~390
W for each
resistive segment of the potentiometer, a wiper resistance
offset must be considered. Table 13 shows the effect of this
value and how it would appear on the wiper terminal.
Table 13. POTENTIOMETER RESISTANCE AND WIPER RESISTANCE OFFSET EFFECTS
Position
Typical RW to RL Resistance for 50 kW Digital Potentiometer
00
70 W or
0 W + 70 W
01
460 W or
390 W + 70 W
63
24,870 W or
24,800 W + 70 W
127
50,070 W or
50,000 W + 70 W
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參數(shù)描述 |
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| CAT5137SDI-10GT3 | 制造商:ON Semiconductor 功能描述:DPP IIC 128 TAPS VOLATILE - Tape and Reel |
| CAT5138SDI-10GT3 | 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(chǔ)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) |
| CAT5140ZI-00-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP NONVOL SGL 256TAP I2C 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(chǔ)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 |
| CAT5140ZI-50-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP NONVOL SGL 256TAP I2C 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(chǔ)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 |
| CAT5171TBI-00GT3 | 功能描述:數(shù)字電位計(jì) IC Linear Single 256 Taps Non Buffer 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(chǔ)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 |
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