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| 型号： | ADG4612BRUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH QUAD SPST 16TSSOP |
| 设计资源： | Power off protected data acquisition signal chain using ADG4612 , AD711, and AD7476 (CN0165) |
| 标准包装： | 96 |
| 功能： | 开关 |
| 电路： | 4 x SPST - NO |
| 导通状态电阻： | 5.1 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 12 V，±3 V ~ 5.5 V |
| 电流 - 电源： | 600µA |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
ADG4612/ADG4613
Rev. 0 | Page 17 of 24
THEORY OF OPERATION
The ADG4612/ADG4613 contain four independent single-
pole/single-throw (SPST) switches. Each switch is rail-to-rail
and conducts equally well in both directions when on.
The ADG4612/ADG4613 has two modes of operation: normal
mode and isolation mode.
The operation modes are made possible by a special detection
circuitry that monitors the voltage levels at the source or drain
terminals and VDD relative to ground. Depending on these
voltage levels, the device operates in normal mode or isolation
mode accordingly.
Isolation mode is a useful feature that isolates the inputs from
the outputs where input signals may be present before supplies
or during positive fault conditions that can occur in applications.
Normal Mode
In normal mode, the switch functions as a normal 4 × SPST
switch, whereby the switch is controlled by the logic input pins,
IN1 to IN4.
The following three conditions need to be satisfied for the
switch to be in the on condition;
VDD ≥ 2.7 V; and
Input signal, VS, VD < VDD + VT ; and
Logic input, INx set to on level
When the switch is in the on condition, if the signal range is
from VDD to 5.5 V, the signals present on the switch inputs are
passed through to the switch output. If the analog input exceeds
VDD by a threshold voltage, VT, the switch turns off and is in
isolation mode.
If the analog input signal exceeds the negative supply, VSS, when
the switch is off, the switch blocks a signal up to 5.5 V. If the
switch is on, the switch remains on, and this signal is passed to
the output. See the Negative Fault Condition; Negative Signal
Handling section for more details.
Isolation Mode
In isolation mode, all switches are in the off condition. The
switch inputs are isolated from the switch outputs. The switch
inputs are high impedance inputs with greater than 475 kΩ
impedance to VDD ground and across the switch. This prevents
any current from flowing that can damage the switch. This is
very useful in applications where analog signals may be present
at the switch inputs before power is present or where the user
has no control over the power supply sequence.
The switch is in isolation mode when
No power supplies are present, that is, when VDD is floating
or VDD ≤ 1 V; or
Input signal, VS, VD > VDD + VT
The negative supply rail, VSS, can be floating or 0 V to 5.5 V.
The ground pin must be connected to the ground potential.
Table 11. Switch Operation Mode
VDD
VSS1
GND
VS, VD
(Input Voltage, Sx or Dx)
Switch Condition
Switch
Mode
Floating
X
0 V
5.5 V to +10.5 V
All switches off
Isolation
0 V to 16 V
Inputs isolated from outputs
0 V to 0.8 V
X
0 V
5.5 V to +10.5 V
All switches off
Isolation
0 V to 16 V
Inputs isolated from outputs
VDD ≥ 2.7 V
X
0 V
VS, VD > VDD + VT
All switches off
Isolation
Inputs isolated from outputs
VDD ≥ 2.7 V to 16 V
0 V to 5.5 V
0 V
VDD to VDD – 16 V
Switch state is determined by logic
levels, INx
Normal
1 X = don’t care; for example, floating, 0 V to 5.5 V.
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| ADG4612BRUZ-REEL7 | 功能描述:模拟开关 IC 5V 4 x SPST Known Power Off 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 |
| ADG4613BCPZ-REEL7 | 功能描述:IC SWITCH QUAD SPST 16LFCSP RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:1,000 系列:- 功能:多路复用器 电路:1 x 4:1 导通状态电阻:- 电压电源:双电源 电压 - 电源，单路/双路(±):±5V 电流 - 电源:7mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| ADG4613BRUZ | 功能描述:IC SWITCH QUAD SPST 16TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 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 系列:- 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:托盘 |
| ADG4613BRUZ-REEL7 | 功能描述:模拟开关 IC 5V 4 x SPST Known Power Off 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 |
| ADG465 | 制造商:AD 制造商全称:Analog Devices 功能描述:Single Channel Protector in an SOT-23 Package |
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