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参数资料
| 型号： | MAX14802CCM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH SPST 48LQFP |
| 应用说明： | Ultrasound Imaging Systems Application Note |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 功能： | 开关 |
| 电路： | 单刀单掷 |
| 导通状态电阻： | 48 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 5µA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 带卷 (TR) |
MAX14802/MAX14803/MAX14803A
Low-Charge Injection, 16-Channel,
High-Voltage Analog Switches
13
Maxim Integrated
Applications Information
For medical ultrasound applications, see Figures 4, 5,
and 6.
Logic Levels
The MAX14802/MAX14803/MAX14803A digital inter-
face inputs CLK, DIN, LE, and CLR operate on the VDD
supply voltage.
Daisy-Chaining Multiple Devices
Digital output DOUT is provided to allow the connection
of multiple MAX14802/MAX14803/MAX14803A devices
by daisy-chaining (Figure 3). Connect each DOUT to the
DIN of the subsequent device in the chain. Connect CLK,
LE, and CLR inputs of all devices, and drive LE logic-low
to update all devices simultaneously. Drive CLR high to
open all the switches simultaneously. Additional shift reg-
isters can be included anywhere in series with the
MAX14802/MAX14803/MAX14803A data chain.
Supply Sequencing and Bypassing
The MAX14802/MAX14803/MAX14803A do not require
special sequencing of the VDD, VPP, and VNN supply
voltages; however, analog switch inputs must be
unconnected, or satisfy VNN ≤ (VCOM_, VNO_) ≤ VPP
during power-up and power-down. Bypass VDD, VPP,
and VNN to GND with a 0.1μF ceramic capacitor as
close as possible to the device.
Application Diagrams
MAX14802
MAX14803
MAX14803A
MAX14802
MAX14803
MAX14803A
MAX14802
MAX14803
MAX14803A
MAX14802
MAX14803
MAX14803A
MAX14802
MAX14803
MAX14803A
MAX14802
MAX14803
MAX14803A
CLK
DIN
CLK
LE
CLR
U10
U11
U1n
U20
U21
U2n
DOUT
DIN1
LE
CLR
DIN2
DIN
CLK
LE
CLR
DOUT
DIN
CLK
LE
CLR
DOUT
DIN
CLK
LE
CLR
DOUT
DIN
CLK
LE
CLR
DOUT
DIN
CLK
LE
CLR
DOUT
Figure 3. Interfacing Multiple Devices by Daisy-Chaining
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