参数资料
| 型号： | MCP42050-E/P |
| 厂商： | Microchip Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 50K 2CH SPI 14DIP |
| 标准包装： | 30 |
| 接片： | 256 |
| 电阻（欧姆）： | 50k |
| 电路数： | 2 |
| 温度系数： | 标准值 800 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 3 线串行（芯片选择） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 14-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-PDIP |
| 包装： | 管件 |
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2003 Microchip Technology Inc.
DS11195C-page 1
M
MCP41XXX/42XXX
Features
256 taps for each potentiometer
Potentiometer values for 10 k
, 50 k and
100 k
Single and dual versions
SPI serial interface (mode 0,0 and 1,1)
±1 LSB max INL & DNL
Low power CMOS technology
1 A maximum supply current in static operation
Multiple devices can be daisy-chained together
(MCP42XXX only)
Shutdown feature open circuits of all resistors for
maximum power savings
Hardware shutdown pin available on MCP42XXX
only
Single supply operation (2.7V - 5.5V)
Industrial temperature range: -40°C to +85°C
Extended temperature range: -40°C to +125°C
Block Diagram
Description
The MCP41XXX and MCP42XXX devices are 256-
position, digital potentiometers available in 10 k
,
50 k
and 100 k resistance versions. The
MCP41XXX is a single-channel device and is offered in
an 8-pin PDIP or SOIC package. The MCP42XXX con-
tains two independent channels in a 14-pin PDIP, SOIC
or TSSOP package. The wiper position of the
MCP41XXX/42XXX varies linearly and is controlled via
an industry-standard SPI interface. The devices con-
sume <1 A during static operation. A software shut-
down feature is provided that disconnects the “A”
terminal from the resistor stack and simultaneously con-
nects the wiper to the “B” terminal. In addition, the dual
MCP42XXX has a SHDN pin that performs the same
function in hardware. During shutdown mode, the con-
tents of the wiper register can be changed and the
potentiometer returns from shutdown to the new value.
The wiper is reset to the mid-scale position (80h) upon
power-up. The RS (reset) pin implements a hardware
reset and also returns the wiper to mid-scale. The
MCP42XXX SPI interface includes both the SI and SO
pins, allowing daisy-chaining of multiple devices. Chan-
nel-to-channel resistance matching on the MCP42XXX
varies by less than 1%. These devices operate from a
single 2.7 - 5.5V supply and are specified over the
extended and industrial temperature ranges.
Package Types
16-Bit
Shift
V
DD
V
SS
SI
SCK
RS SHDN
PB1
PA1
PW1
Resistor
Array 1*
Wiper
Register
PB0
PW0
PA0
Resistor
Array 0
Wiper
Register
S0
Control
Logic
CS
*Potentiometer P1 is only available on the dual
MCP42XXX version.
MCP42XXX
1
2
3
4
11
12
13
14
8
9
10
5
6
7
PDIP/SOIC/TSSOP
PB1
PA1
PW1
SHDN
SO
RS
PW0
PB0
CS
PA0
SCK
SI
V
SS
V
DD
M
C
P
4
1XXX
1
2
3
4
5
6
7
8
PDIP/SOIC
PB0
PA0
V
DD
PW0
V
SS
CS
SCK
SI
Single/Dual Digital Potentiometer with SPI Interface
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP42050-I/P | 功能描述:数字电位计 IC 256 Step SPI 50kOhm 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 |
| MCP42050-I/P | 制造商:Microchip Technology Inc 功能描述:Digital Potentiometer (Pots) IC |
| MCP42050-I/SL | 功能描述:数字电位计 IC 256 Step SPI 50kOhm 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 |
| MCP42050-I/ST | 功能描述:数字电位计 IC 256 Step SPI 50kOhm 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 |
| MCP42050T-E/SL | 功能描述:数字电位计 IC 256 Step SPI 50kOhm 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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