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| 型号： | MAX14805CCM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC MUX DUAL 8CH HV 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： | 250 |
| 功能： | 开关 |
| 电路： | 8 x SPST - NO，8 x SPST - NC |
| 导通状态电阻： | 23 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°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： | 托盘 |
10 _____________________________________________________________________________________
MAX14805/MAX14806
16-Channel (Two Banks of 8-Channel),
High-Voltage Analog Switches
Detailed Description
The MAX14805/MAX14806 provide high-voltage switch-
ing on 16 channels for ultrasonic imaging. Both devices
are ideal for the following applications: bank selection in
biplane or triplane ultrasound probes and relays replace-
ment in medical ultrasound systems. The devices utilize
200V process technology to provide 16 high-voltage,
low-charge injection SPST switches, controlled by a
digital interface.
The MAX14805/MAX14806’s output switches are con-
figured as two sets of eight SPST analog switches. The
switches are controlled by two input logic controls, DIN1
and DIN2 (respectively for switch 0 to 7 and switch 8
to 15). The MAX14806 features integrated 40kI bleed
resistors on each switch terminal that help to reduce
voltage buildup in capacitive loads such as piezoelectric
elements.
The MAX14805/MAX14806 operate with a wide range of
high-voltage supplies, including VPP/VNN = +100V/-100V,
+200V/0V, and +40V/-160V. The digital interface oper-
ates from a separate VDD supply from +2.7V to +5.5V.
Digital inputs DIN1, DIN2, and LE operate on the VDD
supply voltage.
The MAX14805CCM+ is a drop-in replacement for the
Supertex HV2631. The MAX14806CCM+ is a drop-in
replacement for the Supertex HV2731.
Analog Switch
The MAX14805/MAX14806 allow a peak-to-peak analog
signal range from VNN to (VPP - 10V). During power-up
and power-down, all analog switch inputs (SW_) must be
unconnected or satisfy VNN P VSW_ P VPP.
High-Voltage Supplies
The MAX14805/MAX14806 allow a wide range of high-
voltage supplies. The devices operate with VNN from
-160V to 0V and VPP from +40V to (VNN + 220V). When
VNN is connected to GND (single-supply applications),
the devices operate with VPP up to +200V. The VPP and
VNN high-voltage supplies are not required to be sym-
metrical, but the voltage difference (VPP - VNN) must not
exceed 230V.
Bleed Resistors (MAX14806)
The MAX14806 features integrated 40kI bleed resis-
tors to discharge capacitive loads such as piezoelectric
transducers. Each analog switch terminal is connected
to GND with a bleed resistor.
Data Input (DIN1/DIN2)
DIN1/DIN2 control the on/off state of the analog switches.
DIN1 controls SW0–SW7 and DIN2 controls SW8–SW15
(see Table 1 and Figure 2). DIN1 and DIN2 operate on
the VDD supply voltage.
Latch Enable (LE)
Drive LE logic-low to latch DIN1/DIN2 data input (see
Figure 2). Drive LE logic-high to hold data. The LE input
operates on the VDD supply voltage.
Applications Information
For medical ultrasound applications, see Figures 3 and 4.
Supply Sequencing and Bypassing
The MAX14805/MAX14806 do not require special
sequencing of the VDD, VPP, and VNN supply voltages;
however, analog switch inputs must be unconnected or
satisfy VNN P VSW_ P VPP during power-up and power-
down. Bypass VDD, VPP, and VNN to GND with a 0.1FF
ceramic capacitor as close as possible to the device.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX14805CCM+ | 功能描述:模拟开关 IC 8:1 2Ch High Voltage Analog 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 |
| MAX14805CCM+T | 功能描述:模拟开关 IC 8:1 2Ch High Voltage Analog 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 |
| MAX14805ECM+ | 功能描述:模拟开关 IC 8:1 2Ch High Voltage Analog 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 |
| MAX14806CCM+ | 功能描述:模拟开关 IC 8:1 2Ch High Voltage Analog 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 |
| MAX14806CCM+T | 功能描述:模拟开关 IC 8:1 2Ch High Voltage A Switch w/Bleed Res 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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