参数资料
| 型号： | MAX14801CCM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH SPST 48LQFP |
| 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
10
Maxim Integrated
Detailed Description
The MAX14802/MAX14803/MAX14803A provide high-
voltage switching on 16 channels for ultrasound imag-
ing and printer applications. The devices utilize
HVCMOS process technology to provide 16 high-volt-
age low-charge-injection SPST switches, controlled by
a digital interface. Data is clocked into an internal 16-
bit shift register and retained by a programmable latch
with enable and clear inputs. A power-on-reset function
ensures that all switches are open on power-up.
The MAX14802/MAX14803/MAX14803A operate with a
wide range of high-voltage supplies including: VPP/VNN
= +100V/-100V, +200V/0V, or +40V/-160V. The digital
interface operates from a separate +2.7V to +5.5V VDD
supply. Digital inputs DIN, CLK, LE, and CLR operate
on the VDD supply voltage. The MAX14803/MAX14803A
provide integrated 35k
Ω bleed resistors on each switch
terminal to discharge capacitive loads. The MAX14802/
MAX14803/MAX14803A feature clamping diodes (at
the COM_). These clamping diodes provide overvolt-
age protection against positive overshoot.
Analog Switch
The MAX14802/MAX14803/MAX14803A allow a peak-to-
peak analog signal range from VNN to the minimum of
either VNN + 200V or (VPP - 10V). Analog switch inputs
must be unconnected, or satisfy VNN ≤ (VCOM_, VNO_) ≤
VPP during power-up and power-down.
High-Voltage Supplies
The MAX14802/MAX14803/MAX14803A allow a wide
range of high-voltage supplies. The devices operate
with VNN from -160V to 0 and VPP from +40V to VNN +
250V. 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 symmetrical, but the voltage difference
(VPP - VNN) must not exceed 250V.
Bleed Resistors (MAX14803/MAX14803A)
The MAX14803/MAX14803A feature integrated 35k
Ω
bleed resistors to discharge capacitive loads such as
piezoelectric transducers. Each analog switch terminal
is connected to GND with a bleed resistor.
Overvoltage Protection
The MAX14802/MAX14803/MAX14803A feature clamp-
ing diodes (at the COM_). These clamping diodes pro-
vide overvoltage protection against positive overshoot.
Serial Interface
The MAX14802/MAX14803/MAX14803A are controlled
by a serial interface with a 16-bit serial shift register
and transparent latch. Each of the 16 data bits controls
a single analog switch (Table 1). Data on DIN is
clocked with the most significant bit (MSB) first into the
shift register on the rising edge of CLK. Data is clocked
out of the shift register onto DOUT on the rising edge of
CLK. DOUT reflects the status of DIN, delayed by 16
clock cycles (Figures 1 and 2).
Latch Enable (
LE)
Drive LE logic-low to change the contents of the latch
and update the state of the high-voltage switches
(Figure 2). Drive LE logic-high to freeze the contents of
the latch and prevent changes to the switch states. To
reduce noise due to clock feedthrough, drive LE logic-
high while data is clocked into the shift register. After
the data shift register is loaded with valid data, pulse
LE logic-low to load the contents of the shift register
into the latch.
Latch Clear (CLR)
The MAX14802/MAX14803/MAX14803A feature a latch
clear input. Drive CLR logic-high to reset the contents
of the latch to zero and open all switches. CLR does
not affect the contents of the data shift register. Pulse
LE logic-low to reload the contents of the shift register
into the latch.
Power-On Reset
The MAX14802/MAX14803/MAX14803A feature a
power-on-reset circuit to ensure all switches are open
at power-on. The internal 16-bit serial shift register and
latch are set to zero on power-up.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX14802CCM+ | 功能描述:模拟开关 IC 16Ch Low Charge Inj High V A 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 |
| MAX14802CCM+T | 功能描述:模拟开关 IC 16Ch Low Charge Inj High V A 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 |
| MAX14803AEWZ+ | 制造商:Maxim Integrated Products 功能描述:16 CHANNEL HIGH VOLTAGE SWITCH IN WLP PACKAGE - Rail/Tube |
| MAX14803AEWZ+T | 功能描述:模拟开关 IC 16Ch Low Charge Inj High V A 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 |
| MAX14803CCM+ | 功能描述:模拟开关 IC 16Ch Low Charge Inj High V A 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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