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| 型号： | MAX5392NAUE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 256POS 100K 16TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 256 |
| 电阻（欧姆）： | 100k |
| 电路数： | 2 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
Dual, 256-Tap, Volatile, Low-Voltage,
Linear Taper Digital Potentiometer
MAX5392
10 _____________________________________________________________________________________
Detailed Description
The MAX5392 dual, 256-tap, volatile, low-voltage linear
taper digital potentiometer offers three end-to-end resis-
tance values of 10kI, 50kI, and 100kI. The potenti-
ometer consists of 255 fixed resistors in series between
terminals H_ and L_. The potentiometer wiper, W_, is
programmable to access any one of the 256 tap points
on the resistor string.
The potentiometers are programmable independently of
each other. The MAX5392 features an I2C interface.
Charge Pump
TThe MAX5392 contains an internal charge pump that
guarantees the maximum wiper resistance, RWL, to be
less than 200 for supply voltages down to 1.7V. Pins
H_, W_, and L_ are still required to be less than VDD +
0.3V. A bypass input, BYP, is provided to allow addi-
tional filtering of the charge-pump output, further reduc-
ing clock feedthrough that can occur on H_, W_, or L_.
The nominal clock rate of the charge pump is 600kHz.
BYP should remain resistively unloaded as any addi-
tional load would increase clock feedthrough. See the
Charge-Pump Feedthrough at W_ vs. CBYP graph in the
Typical Operating Characteristics for CBYP sizing guide-
lines with respect to clock feedthrough to the wiper. The
value of CBYP does affect the startup time of the charge
pump; however, CBYP does not impact the ability to
communicate with the device, nor is there a minimum
CBYP requirement. The maximum wiper impedance
specification is not guaranteed until the charge pump is
fully settled. See the BYP Ramp Time vs. CBYP graph in
the Typical Operating Characteristics for CBYP impact on
charge-pump settling time.
I2C Digital Interface
The I2C interface contains a shift register that decodes
the command and address bytes, routing the data to the
appropriate control registers. Data written to a control
register immediately updates the wiper position. The
wipers A and B power up in midposition, D[7:0] = 80h.
Serial Addressing
The MAX5392 operates as a slave device that receives
data through an I2C/SMBusK-compatible 2-wire serial
interface. The interface uses a serial-data access line
(SDA) and a serial-clock line (SCL) to achieve bidirec-
tional communication between master(s) and slave(s).
A master, typically a microcontroller, initiates all data
transfers to the port and generates the SCL clock that
synchronizes the data transfer. See Figure 2. Connect a
pullup resistor, typically 4.7kI, between each of the SDA
and SCL lines to a voltage between VDD and 5.5V.
SMBus is a trademark of Intel Corp.
Figure 2. I2C Serial-Interface Timing Diagram
SDA
SCL
START
CONDITION
(S)
tLOW
tBUF
tHIGH
tHD:STA
tSU:DAT
tR
tF
tSU:STD
REPEATD
START CONDITION
(Sr)
ACKNOWLEDGE (A)
STOP CONDITION
(P)
START CONDITION
(S)
tHD:DAT
tSU:DTA
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5393EVKIT+ | 功能描述:其他开发工具 Dl 256-Tap Volatile Linear Taper RoHS:否 制造商:Parallax 产品:ELEV-8 Hex Upgrade Kits 类型:Robotics 工具用于评估:ELEV-8 Quadcopter 工作电源电压: |
| MAX5393EVMINIQU+ | 功能描述:数字电位计开发工具 MAX5393 Eval Kit RoHS:否 制造商:Arduino 产品:TinkerKit Rotary Potentiometers 工具用于评估:TinkerKit 电阻:4.7 kOhms 工作电源电压:0 V to 5 V |
| MAX5393LAUD+ | 功能描述:数字电位计 IC Dl 256-Tap Volatile Linear Taper 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 |
| MAX5393LAUD+T | 功能描述:数字电位计 IC Dl 256-Tap Volatile Linear Taper 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 |
| MAX5393MAUD+ | 功能描述:数字电位计 IC Dl 256-Tap Volatile Linear Taper 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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