- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98061 > PS4532EAP (PERICOM SEMICONDUCTOR CORP) TRIPLE 2-CHANNEL, SGL ENDED MULTIPLEXER, PDSO20 PDF資料下載
參數(shù)資料
| 型號(hào)： | PS4532EAP |
| 廠商： | PERICOM SEMICONDUCTOR CORP |
| 元件分類： | 多路復(fù)用及模擬開關(guān) |
| 英文描述： | TRIPLE 2-CHANNEL, SGL ENDED MULTIPLEXER, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大?。?/td> | 254K |
| 代理商： | PS4532EAP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)
9
PS8591C
11/14/02
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS4530/PS4531/PS4532
Precision 8-Ch, 2-Ch, Latched Analog Multiplexers/Switches
Applications Information
Power-Supply Considerations
Overview
The PS4530/PS4531/PS4532 construction is typical of most CMOS
analog Switches. They have three supply pins: V+, V, and GND. V+
and V- drive the the internal CMOS switches and set the limits of
the analog voltage on any switch. Reverse ESD-protection diodes
are internally connected between each analog-signal pin and both
V+ and V-. One of these diodes conducts if any signal exceeds V+
or V-. During normal operation, these and other reverse-biased
ESD diodes leak, forming the only current drawn from V+ or V–.
Virtually all of the analog leakage current comes from the ESD
diodes. Although the ESD diodes on a given signal pine are iden-
tical and therefore fairly well balanced, they are reverse biased
differently. Each is biased by either V+ or V- and the analog signal.
This means their leakages vary as the signal varies. The difference
in the two diode leakages to the V+ and V– pins constitutes the
analog-signal-path leakage current. All analog leakage current flows
between each pin and one of the supply terminals, not to the other
switch terminal. For this reason, both sides of a given switch can
show leakage currents of either the same or opposite polarity.
The signal paths and GND are not connected.
V+ and GND power the internal logic and logic-level translators,
and set both the input and output logic limits. The logic level
translators convert the logic levels into switched V+ and V- sig-
nals to drive the analog signals’ gates. This drive signal is the only
connection between the logic supplies and signals and the analog
supplies. V+ and V- have ESD-protection diodes to GND.
The logic-level thresholds are TTL/CMOS compatible when
V+ = +5V. As V+ rises, the threshold increases slightly, so when
V+ reaches +12V, the threshold is about 3.1V – above the TTL
guaranteed, high-level minimum of 2.8V, but still compatible with
CMOS outputs.
Bipolar Supplies
The PS4530/PS4531/PS4532 operate with bipolar supplies between
±2.0V and ±6V. The V+ and V- supplies need not be symmetrical,
but their sum cannot exceed the +13V absolute maximum rating.
Single Supply
The PS4530/PS4531/PS4532 operate from a single supply between
+2V and 12V when V- is connected to GND. All of the bipolar
precautions must be observed. At room temperature, they actually
work with a single supply at, near, or below +1.7V, although as
supply voltage decreases, switch on-resistance and switching times
become very high.
High-Frequency Performance
In 50Ohm systerns, signal response is reasonably flat up to 50MHz
(see Typical Operating Characteristics). Above 20MHz, the on
response has several minor peaks that are highly layout depen-
dent. The problem is not in turning the switch on, but in turning it
off. The off-state switch acts lilke a capacitor and passes higher
frequencies with less attenuation. At 10MHz, off isolation is about
–65dB in 50Ohm systems, becoming worse (approximately 21dB
per decade) as frequency increases. Higher circuit impedances
also make off isolation worse. Adjacent channel attenuation is
about 3dB above that of a bare IC socket, and is due entirely to
capacitive coupling.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PS4532CWP | TRIPLE 2-CHANNEL, SGL ENDED MULTIPLEXER, PDSO20 |
| PSC159-2IR | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PT4567N | 1-OUTPUT 14.4 W DC-DC REG PWR SUPPLY MODULE |
| PT4585N | 1-OUTPUT 14.4 W DC-DC REG PWR SUPPLY MODULE |
| PT4585A | 1-OUTPUT 14.4 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PS4532EWP | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:Precision 8-Ch, 2-Ch, Latched Analog Multiplexers/Switches |
| PS-45-48 | 功能描述:線性和開關(guān)式電源 48W 48V 1A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
| PS-45-5 | 功能描述:線性和開關(guān)式電源 40W 5V 8A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
| PS4-563K | 制造商:Ohmite Mfg Co 功能描述: |
| PS-45-7.5 | 功能描述:線性和開關(guān)式電源 40.5W 7.5V 5.4A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。