參數(shù)資料
型號: AS1752V-T
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: 數(shù)據(jù)轉(zhuǎn)換
英文描述: Quad 0.9Ω SPST Switch; Package Type: TQFN(3x3)-16
中文描述: 高速,低電壓,單電源,0.9ヘ,四路SPST模擬開關(guān)
封裝: TQFN(3x3)-16
文件頁數(shù): 9/16頁
文件大?。?/td> 517K
代理商: AS1752V-T
www.austriamicrosystems.com
Revision 1.41
9 - 16
AS1751/AS1752/AS1753
Data Sheet
- Application Information
9 Application Information
Power Supply Sequencing
Proper power-supply sequencing is critical for proper switch operation. The power supplies should be started up in the
following sequence:
1. V+
2. NO
x,
NC
x,
COM
x
Note:
Do not exceed the absolute maximum ratings
(see page 2)
.
Overvoltage Protection
ON-resistance increases slightly at lower supply voltages.
Figure 12. Overvoltage Protection using 2 External Blocking Diodes
Adding diode D2 to the circuit shown in
Figure 12
causes the logic threshold to be shifted relative to GND. Diodes D1
and D2 also protect against overvoltage conditions.
For example, in the circuit shown in
Figure 12
, if the supply voltage goes below the absolute maximum rating, and if a
fault voltage up to the absolute maximum rating is applied to an analog signal pin, no damage will result.
Power Supply Bypass
Power supply connections to the devices must maintain a low impedance to ground. This can be done using a bypass
capacitor, which will also improve noise margin and prevent switching noise propagation from the V+ supply to other
components.
A 0.1μF bypass capacitor, connected from V+ to GND
(see Figure 18 on page 11)
, is adequate for most applications.
Logic Inputs
Driving IN
x
Rail-to-Rail will help minimize power consumption.
Layout Considerations
High-speed switches require proper layout and design procedures for optimum performance.
!
Short, wide traces should be used to reduce stray inductance and capacitance.
!
Bypass capacitors should be as close to the device as possible.
!
Large ground planes should be used wherever possible.
AS1751/AS1752/AS1753
D1
V+
GND
V
GEN
COM
x
D2
V+
NO
x
相關(guān)PDF資料
PDF描述
AS1753S-T Quad 0.9Ω SPST Switch; Package Type: TSSOP-14
AS1753V-T Quad 0.9Ω SPST Switch; Package Type: TQFN(3x3)-16
AS1901C23 230nA, push-pull Active-Low; Package Type: SOT23-3; Reset Type: Active-Low; Timeout Period: 100,00; Supervised Voltages (IN1): 2,32
AS1901C22-T 230nA, push-pull Active-Low; Package Type: SOT23-3; Reset Type: Active-Low; Timeout Period: 100,00; Supervised Voltages (IN1): 2,20
AS1901C26-T 230nA, push-pull Active-Low; Package Type: SOT23-3; Reset Type: Active-Low; Timeout Period: 100,00; Supervised Voltages (IN1): 2,63
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