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| 型号： | MAX4947ETG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/13页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH TRIPLE DPDT 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 开关 |
| 电路： | 3 x DPDT |
| 导通状态电阻： | 5.5 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V |
| 电流 - 电源： | 5µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
MAX4947/MAX4948
Hex SPDT Data Switch
8
_______________________________________________________________________________________
Timing Circuits/Timing Diagrams
tr < 5ns
tf < 5ns
50%
0V
LOGIC
INPUT
RL
COM_
GND
CB_
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
VOUT = VN_
(
RL
)
RL + RON
VN_
VCC
tOFF
0V
NO_
OR NC_
0.9 x V0UT
0.9 x VOUT
tON
VOUT
SWITCH
OUTPUT
LOGIC
INPUT
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
VCC
CL
VCC
VOUT
MAX4947/
MAX4948
50%
Figure 1. Switching Time
Detailed Description
The MAX4947 triple DPDT and the MAX4948 hex SPDT
analog switches operate from a single +1.8V to
+5.5V supply. These devices are fully specified for +3V
applications.
The MAX4947/MAX4948 have a guaranteed 4
Ω (typ) on-
resistance and a low 30pF (typ) capacitance that makes
the switch ideal for data switching applications. The
MAX4947 has three logic inputs to control two switches in
pairs and the MAX4948 has one logic control input and
an enable input (
EN) to disable the switches.
Applications Information
Digital Control Inputs
The MAX4947/MAX4948 provide a digital control logic
input, CB_. CB_ controls the position of the switches as
shown in the
Pin Configurations/Truth Tables. Driving
CB_ rail-to-rail minimizes power consumption.
The MAX4948 features an
EN input to turn all switches
on or off. When
EN is driven high, CB is disabled, and
the analog inputs enter a high-impedance state. Drive
EN low to turn the switches on and enable CB.
Analog Signal Levels
The on-resistance of the MAX4947/MAX4948 is very low
and stable as the analog input signals are swept
from ground to VCC (see the Typical Operating
Characteristics). These switches are bidirectional, allow-
ing NO_, NC_, and COM_ to be configured as either
inputs or outputs.
Power-Supply Biasing
Power-supply bypassing improves noise margin and
prevents switching noise to propagate from VCC supply
to other components. A 0.1F capacitor connected
from V+ to GND is adequate for most applications.
Power-Supply Sequencing
CMOS devices require proper power-supply sequencing.
Always apply VCC before the analog signals, especially
if the input signal is not current limited.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile, as well as the latest infor-
mation on reliability testing results, go to the Maxim
website at www.maxim-ic.com/ucsp for the Application
Note:
UCSP-A Wafer-Level Chip-Scale Package.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4948EBA+T | 功能描述:模拟开关 IC Hex SPDT Data Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4948ERA+ | 制造商:Maxim Integrated Products 功能描述:HEX SPDT DATA SWITCH - Rail/Tube |
| MAX4948ERA+T | 制造商:Maxim Integrated Products 功能描述:HEX SPDT DATA SWITCH - Tape and Reel |
| MAX4948ETG+ | 功能描述:模拟开关 IC Hex SPDT Data Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4948ETG+T | 功能描述:模拟开关 IC Hex SPDT Data Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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