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| 型号： | MAX5435NEZT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/19页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 32POS 100K SOT23-6 |
| 产品培训模块： | Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 32 |
| 电阻（欧姆）： | 100k |
| 电路数： | 1 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 带卷 (TR) |
MAX5432–MAX5435
32-Tap, Nonvolatile, I2C, Linear, Digital
Potentiometers
12
______________________________________________________________________________________
Applications Information
Use the MAX5432–MAX5435 in applications requiring
digitally controlled adjustable resistance, such as LCD
contrast control (where voltage biasing adjusts the dis-
play contrast), or for programmable filters with
adjustable gain and/or cutoff frequency.
Positive LCD Bias Control
Figures 9 and 10 show an application where the volt-
age-divider or variable resistor is used to make an
adjustable, positive LCD bias voltage. The op-amp pro-
vides buffering and gain to the resistor-divider network
made by the potentiometer (Figure 9) or to a fixed
resistor and a variable resistor (Figure 10).
Programmable Filter
Figure 11 shows the configuration for a 1st-order pro-
grammable filter. The gain of the filter is adjusted by
R2, and the cutoff frequency is adjusted by R3. Use the
following equations to calculate the gain (G) and the
3dB cutoff frequency (fC).
Adjustable Voltage Reference
Figure 12 shows the MAX5432/MAX5433 used as the
feedback resistors in an adjustable voltage reference
application. Independently adjust the output voltages of
the MAX6160 from 1.23V to (VIN - 0.2V) by changing
the wiper position of the MAX5432/MAX5433.
G
R
f
RC
C
=+
=
××
1
2
1
23
π
VOUT
30V
5V
W
H
L
MAX5432
MAX5433
Figure 9. Positive LCD Bias Control Using a Voltage-Divider
VOUT
30V
5V
W
H
L
MAX5432–
MAX5435
Figure 10. Positive LCD Bias Control Using a Variable Resistor
VOUT
R1
W
H
L
R2
VIN
R3
H
W
L
C
MAX5432–
MAX5435
Figure 11. Programmable Filter
W
H
L
+5V
GND
VIN
OUT
ADJ
V0 REF
V0 = 1.23V
100k
FOR THE MAX5433
50k
FOR THE MAX5432
R1
R2
MAX6160
MAX5432
MAX5433
R2(k
)
R2(k
)
Figure 12. Adjustable Voltage Reference
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5435PEKT-T | 制造商:Maxim Integrated Products 功能描述:32-TAP, NONVOLATILE, I2C, LINEAR, DIGITAL POT - Tape and Reel |
| MAX5435PEZT | 制造商:Maxim Integrated Products 功能描述:32-TAP NONVOLATILE I2C LINEAR D - Rail/Tube |
| MAX5435PEZT+ | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 32POS 100KOHM SGL 6PIN TSOT-23 - Rail/Tube |
| MAX5435PEZT+T | 功能描述:数字电位计 IC 32-Tap Nonvolatile Linear Digital Pot 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 |
| MAX5435PEZT-T | 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 |
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