参数资料
| 型号： | ISL22449WFV14Z-TK |
| 厂商： | Intersil |
| 文件页数： | 12/13页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 128TP LN LP 14-TSSOP |
| 标准包装： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 128 |
| 电阻（欧姆）： | 10k |
| 电路数： | 4 |
| 温度系数： | 标准值 ±50 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 4 线 SPI（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： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 带卷 (TR) |
8
FN6333.3
July 17, 2009
Pin Description
Potentiometers Pins
RWI (I = 0, 1, 2, 3)
RWi is the wiper terminal and is equivalent to the movable
terminal of a mechanical potentiometer. The position of the
wiper within the array is determined by the WRi register.
SHDN
The SHDN pin forces the resistors to end-to-end open circuit
condition and shorts all RWs to GND. When SHDN is
returned to logic high, the previous latch settings put RWi at
the same resistance setting prior to shutdown. This pin is
logically ANDed with the SHDN bit in the ACR register. SPI
interface is still available in shutdown mode and all registers
are accessible. This pin must remain HIGH for normal
operation.
Bus Interface Pins
SERIAL CLOCK (SCK)
This is the serial clock input of the SPI serial interface.
SERIAL DATA OUTPUT (SDO)
The SDO is an open drain serial data output pin. During a
read cycle, the data bits are shifted out at the falling edge of
the serial clock SCK, while the CS input is low.
SDO requires an external pull-up resistor for proper operation.
FIGURE 7. END TO END RTOTAL % CHANGE vs
TEMPERATURE
FIGURE 8. TC FOR VOLTAGE DIVIDER MODE IN ppm
FIGURE 9. MIDSCALE GLITCH, CODE 80h TO 7Fh
FIGURE 10. LARGE SIGNAL SETTLING TIME
Typical Performance Curves (Continued)
-1.0
-0.5
0.0
0.5
1.0
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (C)
END
T
O
E
N
D
R
TO
T
A
L
CHANGE
(%)
50k
10k
VCC = 5.5V
VCC = 2.7V
0
15
30
45
60
75
90
105
16
36
56
76
96
TAP POSITION (DECIMAL)
TCv
(pp
m
/°
C)
50k
10k
SIGNAL AT WIPER
(WIPER UNLOADED)
SIGNAL AT WIPER
(WIPER UNLOADED MOVEMENT
FROM 7Fh TO 00h)
SCL
RW
FIGURE 11. DCP CONNECTION IN SHUTDOWN MODE
ISL22449
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL22511 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Noise, Low Power, 32 Taps, Push Button Controlled Potentiometer Single Push Button Controlled Potentiometer XDCP |
| ISL22511UFB8Z | 功能描述:数字电位计 IC DCP 8LD 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 |
| ISL22511UFB8Z-TK | 功能描述:数字电位计 IC DCP 8LD 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 |
| ISL22511UFRU10Z-TK | 功能描述:数字电位计 IC DCP 2 1 X 1 6 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 |
| ISL22511WFB8Z | 功能描述:数字电位计 IC DCP 8LD 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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