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参数资料
| 型号： | DS3903E |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC POT NV TRIPLE 128POS 20-TSSOP |
| 标准包装： | 74 |
| 接片： | 128 |
| 电阻（欧姆）： | 10k，10k，90k |
| 电路数： | 3 |
| 温度系数： | 标准值 ±300 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS3903E-020/R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Triple 128-Position Nonvolatile Digital Potentiometer |
| DS3903E-020/T | 制造商:MAXIM 制造商全称: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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