參數(shù)資料
型號： DS1844
元件分類： 數(shù)字電位計
英文描述： Quad Digital Potentiometer
文件頁數(shù)： 1/14頁
文件大小： 289K
代理商： DS1844
1 of 14
101999
FEATURES
§
Four independent, digitally controlled 64-
position potentiometers
§
Two interface control options
-
5-wire serial
-
2-wire addressable
§
Standard resistance values
-
DS1844-010 10 k
-
DS1844-050 50 k
-
DS1844-100 100 k
§
Mixed resistor value combinations (contact
factory for availability)
§
Operating Temperature Range
- Industrial: -40°C to +85°C
PIN ASSIGNMENT
PIN DESCRIPTION
V
CC
PS
A0, A1, A2 - Device Select Pins (2-Wire)
SDA
- Serial Data I/O (2-Wire)
SCL
- Serial Clock (2-Wire)
R/
W
- Read/Write enable (5-Wire)
- Serial Port Reset Input (5-Wire)
D
IN
- Serial Port Data Input (5-Wire)
CLK
- Serial Port Clock Input (5-Wire)
D
OUT
- Cascade Data Output (5-Wire)
H
0
-H
3
- High-end Terminal of Pot
L
0
-L
3
- Low-end Terminal of Pot
W
0
-W
3
- Wiper Terminal of Pot
GND
- Ground
- 2.7V to 5.5V
- Port Select
RST
DESCRIPTION
The DS1844 Quad Digital Potentiometer is a four-channel, digitally controlled linear potentiometer. Each
potentiometer is comprised of 63 equi-resistive sections and has three terminals accessible to the user.
These include the high side terminals, H
X
, the wiper terminals, W
X
, and the low-side terminals, L
X.
The
wiper position on the resistor ladder is selected via an 8-bit register value. Communication and control of
the device are supported by two types of serial interface. These include a 5-wire I/O shift register
interface and a 2-wire addressable interface.
DS1844
Quad Digital Potentiometer
www.dalsemi.com
20-Pin SOIC (300-mil)
20-Pin TSSOP (173-mil)
PS
H2
H3
W3
L3
L2
W2
R/W, A0
A2, RST
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
H1
H0
W0
L0
L1
W1
SCL, CLK
SDA, D
IN
A1, D
OUT
GND
20-Pin DIP (300-mil)
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相關代理商/技術參數(shù)
參數(shù)描述
DS1844_05 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad Digital Potentiometer
DS1844-010 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
DS1844-010+ 功能描述:數(shù)字電位計 IC Quad 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
DS1844-050 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
DS1844-050+ 功能描述:數(shù)字電位計 IC Quad 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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