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參數(shù)資料
| 型號： | MAX5498ETE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 0K |
| 描述： | IC DIG POT 10BIT 16-TQFN-EP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 接片： | 1024 |
| 電阻（歐姆）： | 10k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標準值 35 ppm/°C |
| 存儲器類型： | 非易失 |
| 接口： | 3 線串行（芯片選擇） |
| 電源電壓： | 2.5 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WQFN 裸露焊盤 |
| 供應商設備封裝： | 16-TQFN-EP（5x5） |
| 包裝： | 帶卷 (TR) |
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
12
______________________________________________________________________________________
CODE (DECIMAL)
R
W_H_
(k
)
896
768
512 640
256 384
128
2
4
6
8
10
12
14
16
18
0
1024
50k SCALES BY A FACTOR OF FIVE
Figure 4. Resistance from W_ to H_ vs. Code (10k Voltage-
Divider)
CODE (DECIMAL)
R
W_L_
(k
)
896
768
512 640
256 384
128
2
4
6
8
10
12
14
16
18
0
1024
50k SCALES BY A FACTOR OF FIVE
Figure 5. Resistance from W_ to L_ vs. Code (10k Voltage-
Divider)
Detailed Description
The MAX5494–MAX5499 dual, nonvolatile, linear-taper,
programmable voltage-dividers and variable resistors
feature 1024 tap points (10-bit resolution) (see the
Functional Diagrams). These devices consist of multi-
ple strings of equal resistor segments with a wiper con-
tact that moves among the 1024 effective tap points by
a 3-wire SPI-compatible serial interface. The
MAX5494/MAX5496/MAX5498 provide a total 10k
end-to-end resistance, and the MAX5495/MAX5497/
MAX5499 feature a 50k end-to-end resistance. The
MAX5494/MAX5495/MAX5498/MAX5499 allow access
to the high, low, and wiper terminals for a standard volt-
age-divider configuration. Ensure that the terminal volt-
ages fall between VSS and VDD.
MAX5494/MAX5495/MAX5498/MAX5499
Programmable Voltage-Dividers
The MAX5494/MAX5495/MAX5498/MAX5499 program-
mable voltage-dividers provide a weighted average of
the voltage between the H_ and L_ inputs at the W_
output.
The MAX5494/MAX5495/MAX5498/MAX5499 program-
mable voltage-divider network provides up to 1024
division ratios between the H_ and L_ voltage. Ideally,
the VL voltage occurs at the wiper terminal when all
data bits are zeros and the VH voltage occurs at the
wiper terminal when all data bits are one (see the wiper
voltage equation). The step-size voltage (1 LSB) is
equal to the voltage applied across terminals H and L
divided by 210. Calculate the wiper voltage VW as fol-
lows:
where D is the decimal equivalent of the 10 data bits
written (0 to 1023), VHL is the voltage difference between
the H_ and L_ terminals, and:
The MAX5494/MAX5498 provide a 10k end-to-end
resistance value, while the MAX5495/MAX5499 feature a
50k end-to-end resistance value. Note that the pro-
grammable voltage-divider is not intended to be used
as a variable resistor. Wiper current creates a nonlinear
voltage drop in series with the wiper. To ensure tempera-
ture drift remains within specifications, do not pull current
through the voltage-divider wiper. Connect the wiper to a
high-impedance node. Figures 4 and 5 show the behav-
ior of the programmable voltage-divider resistance from
W_ to H_ and W_ to L_, respectively. This does not apply
to the variable-resistor devices.
MAX5496–MAX5499 Variable Resistors
The MAX5496–MAX5499 provide a programmable resis-
tance from W_ to L_. The MAX5496/MAX5498 provide a
10k end-to-end resistance value, while the
MAX5497/MAX5499 feature a 50k end-to-end resis-
tance value. The programmable resolution of this
V
FSE
V
ZSE
V
FSE
HL
ZSE
HL
=
=
1024
D
VV
V
VV
HL
FSE
ZSE
L
ZSE
+
()
++
||
|
||
1023
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參數(shù)描述 |
|---|---|
| MAX5498EVKIT+ | 功能描述:其他開發(fā)工具 MAX5494-99 Eval Kit RoHS:否 制造商:Parallax 產(chǎn)品:ELEV-8 Hex Upgrade Kits 類型:Robotics 工具用于評估:ELEV-8 Quadcopter 工作電源電壓: |
| MAX5499ETE | 功能描述:數(shù)字電位計 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5499ETE+ | 功能描述:數(shù)字電位計 IC 10-Bit Dual NV Linear-Taper 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5499ETE+T | 功能描述:數(shù)字電位計 IC 10-Bit Dual NV Linear-Taper 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5499ETE-T | 功能描述:數(shù)字電位計 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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