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| 型号： | MAX4802CTM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH OCTAL SPST 48TQFN |
| 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： | 8 x SPST - NO |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 13.2 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
MAX4800/MAX4801/MAX4802
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
10
______________________________________________________________________________________
When VNN is connected to GND (single-supply applica-
tions), 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 200V.
Bleed Resistors (MAX4802)
The MAX4802 features integrated 35k
Ω bleed resistors
to discharge capacitive loads such as piezoelectric
transducers. Each analog switch terminal is connected
to RGND with a bleed resistor.
Serial Interface
The MAX4800/MAX4801/MAX4802 are controlled by a
serial interface with an 8-bit serial shift register and
transparent latch. Each of the eight data bits controls a
single analog switch (see 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 eight
clock cycles (see 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 MAX4800/MAX4801/MAX4802 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 MAX4800/MAX4801/MAX4802 feature a power-on
reset circuit to ensure all switches are open at power-
on. The internal 8-bit serial shift register and latch are
set to zero on power-up.
LE
CLK
DOUT
DATA FROM PREVIOUS DATA BYTE POWER-UP DEFAULT: D7-D0 = 0
D7
D6
D5
D4
D3
D2
D1
D0
D7
DIN
D7
D6
D5
D4
D3
D2
D1
D0
MSB
LSB
Figure 2. Latch Enable Interface Timing
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4802CXZ | 功能描述:模拟开关 IC 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 |
| MAX4802CXZ+ | 功能描述:模拟开关 IC 8Ch SPST 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 |
| MAX4802CXZ+T | 功能描述:模拟开关 IC 8Ch SPST 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 |
| MAX4802CXZ-T | 功能描述:模拟开关 IC 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 |
| MAX4803ETN+ | 功能描述:模拟开关 IC MultiCh 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 |
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