参数资料
| 型号： | ADG467BR |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC CHAN PROTECTOR OCTAL 18-SOIC |
| 标准包装： | 41 |
| 系列： | ADG467 |
| 电压 - 箝位： | ±40V |
| 技术： | 混合技术 |
| 电路数： | 8 |
| 应用： | 通用 |
| 封装/外壳： | 18-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 18-SOIC |
| 包装： | 管件 |
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FEATURES
Fault and Overvoltage Protection up to
40 V
Triple and Octal
Channel Protectors
ADG466/ADG467
FUNCTIONAL BLOCK DIAGRAMS
Signal Paths Open Circuit with Power Off
V DD
V SS
V DD
V SS
Signal Path Resistance of R ON with Power On
44 V Supply Maximum Ratings
V D1
V S1
V D1
V S1
Low On Resistance
ADG466/ADG467 60
typ
V D2
V S2
V D2
V S2
1 nA Max Path Current Leakage @ +25 C
Low R ON Match (5 max)
Low Power Dissipation 0.8 W typ
V D3
ADG466
V S3
V D3
V S3
Latch-Up Proof Construction
APPLICATIONS
ATE Equipment
V IN
V IN
V D8
ADG467
V S8
V OUT
V OUT
Sensitive Measurement Equipment
Hot-Insertion Rack Systems
GENERAL DESCRIPTION
The ADG466 and ADG467 are triple and octal channel pro-
tectors, respectively. The channel protector is placed in series
with the signal path. The channel protector will protect sensitive
components from voltage transience in the signal path whether
V DD
V DD
OUTPUT CLAMPED
@ V DD – 1.5V
the power supplies are present or not. Because the channel
protection works whether the supplies are present or not, the
channel protectors are ideal for use in applications where
correct power sequencing can’t always be guaranteed (e.g., hot-
insertion rack systems) to protect analog inputs. This is dis-
cussed further, and some example circuits are given in the
Applications section of this data sheet.
Each channel protector has an independent operation and con-
sists of an n-channel MOSFET, a p-channel MOSFET and an
n-channel MOSFET, connected in series. The channel protec-
tor behaves just like a series resistor during normal operation,
i.e., (V SS + 2 V) < V IN < (V DD – 1.5 V). When a channel’s ana-
log input exceeds the power supplies (including V DD and V SS =
0 V), one of the MOSFETs will switch off, clamping the output
to either V SS + 2 V or V DD – 1.5 V. Circuitry and signal source
protection is provided in the event of an overvoltage or power
loss. The channel protectors can withstand overvoltage inputs
from –40 V to +40 V. See the Circuit Information section of
this data sheet.
The ADG466 and ADG467 can operate off both bipolar and
unipolar supplies. The channels are normally on when power is
connected and open circuit when power is disconnected. With
power supplies of ± 15 V, the on-resistance of the ADG466 and
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
ADG467 is 60 ? typ with a leakage current of ± 1 nA max.
When power is disconnected, the input leakage current is ap-
proximately ± 5 nA typ.
The ADG466 is available in 8-lead DIP, SOIC and μ SOIC
packages. The ADG467 is available in an 18-lead SOIC package
and a 20-lead SSOP package.
PRODUCT HIGHLIGHTS
1. Fault Protection.
The ADG466 and ADG467 can withstand continuous volt-
age inputs from –40 V to +40 V. When a fault occurs due to
the power supplies being turned off or due to an overvoltage
being applied to the ADG466 and ADG467, the output is
clamped. When power is turned off, current is limited to the
microampere level.
2. Low Power Dissipation.
3. Low R ON .
ADG466/ADG467 60 ? typ.
4. Trench Isolation Latch-Up Proof Construction.
A dielectric trench separates the p- and n-channel MOSFETs
thereby preventing latch-up.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 ? Analog Devices, Inc., 1998
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADG467BR-REEL | 功能描述:IC OCTAL PROTECTOR 18SOIC RoHS:否 类别:过电压，电流，温度装置 >> TVS - 其它复合 系列:ADG467 标准包装:1 系列:- 电压 - 工作:120V 电压 - 箝位:- 技术:混合技术 功率（瓦特）:- 电路数:1 应用:通用 封装/外壳:模块 供应商设备封装:- 包装:散装 其它名称:UAK 2-PE/S-X-120AC-STUAK2-PE/S-X-120AC-ST |
| ADG467BR-REEL7 | 功能描述:IC OCTAL PROTECTOR 18SOIC RoHS:否 类别:过电压，电流，温度装置 >> TVS - 其它复合 系列:ADG467 标准包装:1 系列:- 电压 - 工作:120V 电压 - 箝位:- 技术:混合技术 功率（瓦特）:- 电路数:1 应用:通用 封装/外壳:模块 供应商设备封装:- 包装:散装 其它名称:UAK 2-PE/S-X-120AC-STUAK2-PE/S-X-120AC-ST |
| ADG467BRS | 功能描述:IC CHAN PROTECTOR OCTAL 20-SSOP RoHS:否 类别:过电压，电流，温度装置 >> TVS - 其它复合 系列:ADG467 标准包装:1 系列:- 电压 - 工作:120V 电压 - 箝位:- 技术:混合技术 功率（瓦特）:- 电路数:1 应用:通用 封装/外壳:模块 供应商设备封装:- 包装:散装 其它名称:UAK 2-PE/S-X-120AC-STUAK2-PE/S-X-120AC-ST |
| ADG467BRS-REEL | 功能描述:IC OCTAL PROTECTOR 20SSOP RoHS:否 类别:过电压，电流，温度装置 >> TVS - 其它复合 系列:ADG467 标准包装:1 系列:- 电压 - 工作:120V 电压 - 箝位:- 技术:混合技术 功率（瓦特）:- 电路数:1 应用:通用 封装/外壳:模块 供应商设备封装:- 包装:散装 其它名称:UAK 2-PE/S-X-120AC-STUAK2-PE/S-X-120AC-ST |
| ADG467BRSZ | 功能描述:IC CHAN PROTECTOR OCTAL 20-SSOP RoHS:是 类别:过电压，电流，温度装置 >> TVS - 其它复合 系列:ADG467 标准包装:1 系列:- 电压 - 工作:120V 电压 - 箝位:- 技术:混合技术 功率（瓦特）:- 电路数:1 应用:通用 封装/外壳:模块 供应商设备封装:- 包装:散装 其它名称:UAK 2-PE/S-X-120AC-STUAK2-PE/S-X-120AC-ST |
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