- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1944 > MAX5394NATA+T (Maxim Integrated Products)IC DGTL POT 256POS 100KOHM 8TDFN PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX5394NATA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 3/15頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 256POS 100KOHM 8TDFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 接片： | 256 |
| 電阻（歐姆）： | 100k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 50 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | 3 線 SPI（芯片選擇） |
| 電源電壓： | 1.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | * |
| 封裝/外殼： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 包裝： | * |
第1頁(yè)第2頁(yè)當(dāng)前第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)
MAX5394
Single, 256-Tap Volatile, SPI, Low-Voltage Linear
Taper Digital Potentiometer
11
Maxim Integrated
Functional Diagram
Detailed Description
The MAX5394 single, 256-tap volatile, low-voltage
linear taper digital potentiometer offers three end-to-
end resistance values of 10k
, 50k, and 100k.
Potentiometer terminals are independent of supply for
voltages up to +5.25V with single-supply operation from
1.7V to 5.5V (charge pump enabled). User-controlled
shutdown modes allow the H, W, or L terminals to
be opened with the wiper position set to zero-code,
midcode, full-code, or the value contained in the wiper
register. Ultra-low-quiescent supply current (< 1A) can
be achieved for supply voltages between 2.6V and 5.5V
by disabling the internal charge pump and not allowing
potentiometer terminals to exceed the supply voltage by
more than 0.3V. The MAX5394 provides a low 50ppm/°C
end-to-end temperature coefficient and features a SPI
serial interface.
The small package size, low supply operating voltage,
low supply current, and automotive temperature range
of the MAX5394 make the device uniquely suited for the
portable consumer market, battery-backup industrial
applications, and automotive market.
Charge Pump
The MAX5394 contains an internal charge pump that
guarantees the maximum wiper resistance, RWL, to be
less than 50
(25 typ) for supply voltages down to
1.7V and allows pins H, W, and L to be driven between
GND and 5.25V independent of VDD. Minimal charge-
pump feedthrough is present at the terminal outputs
and is illustrated by the Charge-Pump Feedthrough
at W vs. Frequency graph in the Typical Operating
Characteristics. The charge pump is on by default but
can be disabled with QP_OFF and enabled with the
QP_ON commands (Table 1). The MAX5394 minimum
supply voltage with charge pump disabled is limited
to 2.6V and terminal voltage cannot exceed -0.3V to
(VDD + 0.3V).
SPI Interface
The digital interface is powered from VDD, not the internal
charge-pump voltage. Therefore the VIH and VIL logic
Characteristics table.
The SPI digital interface uses a 3-wire serial data interface
to control the wiper tap position. This write-only interface
contains three inputs: Chip Select (CS), Data In (DIN),
and Data Clock (SCLK). When CS is taken low, data
from the DIN pin is synchronously loaded into the serial
shift register on each falling edge of each SCLK pulse
(Figure 3). After all the data bits have been shifted in,
they are latched into the potentiometer control register.
Data written to a memory register immediately updates
the wiper position.
Keep CS low during the entire data stream to prevent
the data from being terminated. The power-on default
position of the wiper is midscale (D[7:0] = 80H).
Figure 3. SPI Digital Interface Format
H
L
CS
GND
DIN
W
VDD
SCLK
MAX5394
SPI
INTERFACE
C7
DIN
SCLK
C6
C5
C4
C3
C2
C1
C0
D7
D6
D5
D4
D3
WIPER REGISTER
LOADED
D2
D1
D0
CS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5395NATA+T | IC DGTL POT 256POS 100KOHM 8TDFN |
| MAX5401EKA-T | IC DIGITAL POT 256-TAP SOT23-8 |
| MAX5402EUA | IC POT DIGITAL 256-TAP 8-UMAX |
| MAX5405EUB | IC POT DUAL DGTL 256TAP 10-UMAX |
| MAX5407EKA+T | IC POT DIG AUDIO 32TAP SOT23-8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5395LATA+T | 功能描述:數(shù)字電位計(jì) IC Sgl 256-tap Volatile DigiPot w/SPI 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 |
| MAX5395MATA+T | 功能描述:數(shù)字電位計(jì) IC Sgl 256-tap Volatile DigiPot w/SPI 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 |
| MAX5395NATA+T | 功能描述:數(shù)字電位計(jì) IC Sgl 256-tap Volatile DigiPot w/SPI 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 |
| MAX539ACPA | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX539ACPA+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。