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參數(shù)資料
| 型號： | DS3903E |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC POT NV TRIPLE 128POS 20-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 74 |
| 接片： | 128 |
| 電阻（歐姆）： | 10k，10k，90k |
| 電路數(shù)： | 3 |
| 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： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 管件 |
DS3903
Triple 128-Position Nonvolatile
Digital Potentiometer
4
______________________________________________________________________
Note 1:
All voltages are referenced to ground.
Note 2:
ISTBY specified for VCC equal to 3.0V and 5.0V while control port logic pins are driven to the appropriate
logic levels. Appropriate logic levels specify that logic inputs are within a 0.5V of ground or VCC for the
corresponding inactive state. WP must be disconnected or connected high.
Note 3:
I/O pins of fast mode devices must not obstruct the SDA and SCL lines if VCC is switched off.
Note 4:
A fast mode device can be used in a standard mode system, but the requirement tSU:DAT > 250ns must
then be met. This is automatically the case if the device does not stretch the low period of the SCL signal.
If such a device does stretch the low period of the SCL signal, it must output the next data bit to the SDA
line tRMAX + tSU:DAT = 1000ns + 250ns = 1250ns before the SCL line is released.
Note 5:
After this period, the first clock pulse is generated.
Note 6:
The maximum tHD:DAT has only to be met if the device does not stretch the low period (tLOW) of the
SCL signal.
Note 7:
A device must internally provide a hold time of at least 300ns for the SDA signal (referred to the VIN MIN of
the SCL signal) in order to bridge the undefined region of the falling edge of SCL.
Note 8:
CB—total capacitance of one bus line in picofarads, timing referenced to 0.9 x VCC and 0.1 x VCC.
Note 9:
EEPROM write begins after a stop condition occurs.
Note 10:
Absolute linearity is used to measure expected wiper voltage as determined by wiper position in a
voltage-divider configuration.
Note 11:
Relative linearity is used to determine the change of wiper voltage between two adjacent wiper positions
in a voltage-divider configuration.
Typical Operating Characteristics
(VCC = 5.0V, 10k
plots apply to both pot0 and pot2, TA = +25°C unless otherwise noted.)
10
20
30
40
50
60
70
80
90
100
0
W-L RESISTANCE
vs. WIPER SETTING (90k
)
DS3903
toc03
WIPER SETTING
W-L
RESISTANCE
(k
)
125
100
75
50
25
0
W-L RESISTANCE
vs. WIPER SETTING (10k
)
DS3903
toc02
WIPER SETTING
W-L
RESISTANCE
(k
)
125
100
75
50
25
0
2
4
6
8
10
0
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
DS3903
toc01
TEMPERATURE (
°C)
SUPPLY
CURRENT
(
A)
50
40
-30 -20 -10
10 20
030
20
40
60
80
100
120
140
160
0
-40
60 70 80
VCC = 5V
VCC = 3V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS3903E+ | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 128POS 10.5KOHM/90KOHM TRIPLE 20TSSOP - Rail/Tube |
| DS3903E-020 | 功能描述:數(shù)字電位計(jì) IC 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 |
| DS3903E-020/R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Triple 128-Position Nonvolatile Digital Potentiometer |
| DS3903E-020/T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Triple 128-Position Nonvolatile Digital Potentiometer |
| DS3903E-020/T&R | 制造商:Maxim Integrated Products 功能描述:TRIPLE NV POTENTIOMETER T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT NV TRIPLE 128POS 20-TSSOP |
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