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| 型号： | ADG452BR-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH QUAD SPST 16SOIC |
| 产品培训模块： | Switch Fundamentals |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 1,000 |
| 系列： | LC²MOS |
| 功能： | 开关 |
| 电路： | 4 x SPST - NO |
| 导通状态电阻： | 8 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 12V，±15V |
| 电流 - 电源： | 100pA |
| 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) |
ADG451/ADG452/ADG453
Rev. C | Page 12 of 16
APPLICATIONS
Figure 15 illustrates a precise, fast, sample-and-hold circuit. An
AD845 is used as the input buffer, and the output operational
amplifier is an AD711. During track mode, SW1 is closed, and
the output, VOUT, follows the input signal, VIN. In hold mode,
SW1 is opened, and the signal is held by the hold capacitor, CH.
SD
VOUT
SD
–15V
+15V
+5V
CC
1000pF
2200pF
RC
75
12
13
4
5
SW1
ADG451/
ADG452/
ADG453
–15V
+15V
VIN
AD845
–15V
+15V
AD711
SW2
CH
2200pF
05
23
9-
0
13
Figure 15. Fast, Accurate Sample-and-Hold Circuit
Due to switch and capacitor leakage, the voltage on the hold
capacitor decreases with time. The ADG451/ADG452/ADG453
minimize this droop due to their low leakage specifications. The
droop rate is further minimized by the use of a polystyrene
hold capacitor. The droop rate for the circuit shown is typically
30 μV/μs.
A second switch, SW2, which operates in parallel with SW1, is
included in this circuit to reduce pedestal error. Because both
switches are at the same potential, they have a differential effect
on the op amp, AD711, which minimizes charge injection
effects. Pedestal error is also reduced by the compensation
network, RC and CC. This compensation network reduces the
hold time glitch while optimizing the acquisition time. Using
the illustrated op amps and component values, the pedestal
error has a maximum value of 5 mV over the ±10 V input
range. Both the acquisition and settling times are 850 ns.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADG452BRUZ | 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:LC²MOS 特色产品:MicroPak? 标准包装:1 系列:- 功能:开关 电路:2 x SPST - NC 导通状态电阻:500 毫欧 电压电源:单电源 电压 - 电源，单路/双路(±):1.4 V ~ 4.3 V 电流 - 电源:150nA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-XFDFN 供应商设备封装:8-XSON，SOT833-1 （1.95x1） 包装:Digi-Reel® 其它名称:568-5557-6 |
| ADG452BRUZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS 5 ?? RON SPST Switches |
| ADG452BRUZ-REEL | 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:LC²MOS 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) |
| ADG452BRUZ-REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS 5 ?? RON SPST Switches |
| ADG452BRUZ-REEL7 | 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:LC²MOS 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) |
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