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參數(shù)資料
| 型號(hào)： | ISL84715 |
| 廠商： | Intersil Corporation |
| 英文描述： | Ultra Low ON-Resistance, Low Voltage, Single Supply, SPST Analog Switches |
| 中文描述： | 超低導(dǎo)通電阻，低電壓，單電源，SPST模擬開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 338K |
| 代理商： | ISL84715 |
7
supply voltage provides plenty of room for the 10% tolerance
of 3.6V supplies, as well as room for overshoot and noise
spikes.
The minimum recommended supply voltage is 3.6V but the
part will operate with a supply below 1.5V. It is important to
note that the input signal range, switching times, and on-
resistance degrade at lower supply voltages. Refer to the
electrical specification tables and
Typical Performance
curves for details.
V+ and GND also power the internal logic and level shiftier.
The level shiftier converts the input logic levels to switched
V+ and GND signals to drive the analog switch gate
terminals.
This family of switches cannot be operated with bipolar
supplies, because the input switching point becomes
negative in this configuration.
Logic-Level Thresholds
This switch family is 1.8V CMOS compatible (0.5V and 1.4V)
over a supply range of 2V to 3.6V (see Figure 13). At 3.6V
the V
IH
level is about 1.1V. This is still below the 1.8V CMOS
guaranteed high output minimum level of 1.4V, but noise
margin is reduced.
The digital input stages draw supply current whenever the
digital input voltage is not at one of the supply rails. Driving
the digital input signals from GND to V+ with a fast transition
time minimizes power dissipation.
High-Frequency Performance
In 50
systems, signal response is reasonably flat even past
100MHz (see Figure 14). The frequency response is very
consistent over a wide V+ range, and for varying analog
signal levels.
An OFF switch acts like a capacitor and passes higher
frequencies with less attenuation, resulting in signal
feedthrough from a switch’s input to its output. Off Isolation is
the resistance to this feedthrough. Figure 15 details the high
Off Isolation rejection provided by this family. At 1MHz, Off
Isolation is about 45dB in 50
systems, decreasing
approximately 20dB per decade as frequency increases.
Higher load impedances decrease Off Isolation and
Crosstalk rejection due to the voltage divider action of the
switch OFF impedance and the load impedance.
Leakage Considerations
Reverse ESD protection diodes are internally connected
between each analog-signal pin and both V+ and GND. One of
these diodes conducts if any analog signal exceeds V+ or
GND.
Virtually all the analog leakage current comes from the ESD
diodes to V+ or GND. Although the ESD diodes on a given
signal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by either
V+ or GND and the analog signal. This means their leakages
will vary as the signal varies. The difference in the two diode
leakages to the V+ and GND 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. This is why both sides of a given
switch can show leakage currents of the same or opposite
polarity. There is no connection between the analog signal
paths and V+ or GND.
Typical Performance Curves
T
A
= 25
°
C, Unless Otherwise Specified
FIGURE 7. ON RESISTANCE vs SUPPLY VOLTAGE vs
SWITCH VOLTAGE
FIGURE 8. ON RESISTANCE vs SWITCH VOLTAGE
R
O
)
V
COM
(V)
0
1
2
3
4
0.2
0.3
0.4
0.5
0.6
0.7
V+ = 2.7V
V+ = 1.8V
V+ = 1.5V
V+ = 3.6V
V+ = 3V
I
COM
= 100mA
R
O
)
V
COM
(V)
0
0.5
1
1.5
2
2.5
3
V+ = 2.7V
I
COM
= 100mA
0.15
0.2
0.25
0.3
0.35
0.4
25°C
85°C
-40°C
ISL84715, ISL84716
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL84762IUZ | Aluminum Electrolytic Capacitor; Capacitor Type:General Purpose; Voltage Rating:35VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Body Diameter:8mm; Body Length:10.2mm RoHS Compliant: No |
| ISL84762IR-T | Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch |
| ISL84762IU-T | Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch |
| ISL84762 | Ultra Low ON-Resistance, Low Voltage, Single Supply, Dual SPDT Analog Switch |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL84715_0411 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Ultra Low ON-Resistance, Low Voltage, Single Supply, SPST Analog Switches |
| ISL84715IH-T | 功能描述:模擬開(kāi)關(guān) IC SPST NO RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| ISL84715IHZ-T | 功能描述:IC SWITCH SPST SC70-5 RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:視頻交叉點(diǎn)開(kāi)關(guān) 電路:1 x 8:6 導(dǎo)通狀態(tài)電阻:- 電壓電源:單電源 電壓 - 電源，單路/雙路(±):3.135 V ~ 5.25 V 電流 - 電源:55mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:24-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁(yè)面:1214 (CN2011-ZH PDF) 其它名稱:FMS6502MTC24XTR |
| ISL84716 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Ultra Low ON-Resistance, Low Voltage, Single Supply, SPST Analog Switches |
| ISL84716IH-T | 功能描述:模擬開(kāi)關(guān) IC SPST NC RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
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