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參數(shù)資料
| 型號(hào)： | MAX5402EUA |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/9頁 |
| 文件大小： | 0K |
| 描述： | IC POT DIGITAL 256-TAP 8-UMAX |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 系列： | µPoT |
| 接片： | 256 |
| 電阻（歐姆）： | 10k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 35 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | 3 線串行（芯片選擇） |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 管件 |
MAX5402
256-Tap, PoT, Low-Drift,
Digital Potentiometer
________________________________________________________________________________________
7
Applications Information
The MAX5402 is intended for a variety of circuits where
accurate, fine-tuned adjustable resistance is required,
such as in adjustable voltage or adjustable gain circuit
configurations. The MAX5402 is used in either a poten-
tiometer divider or a variable resistor configuration.
Adjustable Current to Voltage Converter
Figure 4 shows the MAX5402 used with a MAX4250
low-noise op amp to precisely tune a current-to-voltage
converter. Pins H and W of the MAX5402 are connect-
ed to the node between R3 and R2, and pin L is con-
nected to ground.
Adjustable Gain Amplifier
The MAX5402 is used again with the MAX4250 to make
a digitally adjustable gain circuit as shown in Figure 5.
The normal feedback resistor is replaced with the
MAX5402 in a variable resistor configuration, so that
the gain of the circuit can be digitally controlled.
Adjustable Voltage Reference
In Figure 6, the MAX5402 is shown with the MAX6160
to make an adjustable voltage reference. In this circuit,
the H pin of the MAX5402 is connected to the OUT pin
of the MAX6160, the L pin of the MAX5402 is connect-
ed to GND, and the W pin of the MAX5402 is connect-
ed to the ADJ pin of the MAX6160. The MAX5402
allows precise tuning of the voltage reference output. A
low 5ppm/°C ratiometric tempco allows a very stable
adjustable voltage overtemperature.
+5V
R3
VO / IS = R3(1 + R2 / R1) + R2
R2
R1
MAX4250
VO
W
H
L
MAX5402
Figure 4. I to V Converter
+5V
VS
VO
R2
VO / VS = 1 + R2 / R1
R1
W
H
L
MAX4250
MAX5402
Figure 5. Noninverting Amplifier
Data Word
B0 (D7)
B1 (D6)
B2 (D5)
B3 (D4)
B4 (D3)
B5 (D2)
B6 (D1)
B7 (D0)
(MSB)
First Bit In
(LSB)
Last Bit In
Figure 3. Serial Data Format
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5402EUA/GG8 | 制造商:Maxim Integrated Products 功能描述:256-TAP UPOT LOW DRIFT DIGITAL POTENTIOMETER. - Rail/Tube |
| MAX5402EUA+ | 功能描述:數(shù)字電位計(jì) IC 256-Tap Low-Drift 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 |
| MAX5402EUA+T | 功能描述:數(shù)字電位計(jì) IC 256-Tap Low-Drift 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 |
| MAX5402EUA-T | 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(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 |
| MAX5403EUB | 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(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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