ISL54504 [INTERSIL]

+1.8V to +5.5V, 2.5ヘ, Single SPST Analog Switches; + 1.8V至+ 5.5V , 2.5Ω ,单SPST模拟开关
ISL54504
型号: ISL54504
厂家: Intersil    Intersil
描述:

+1.8V to +5.5V, 2.5ヘ, Single SPST Analog Switches
+ 1.8V至+ 5.5V , 2.5Ω ,单SPST模拟开关

开关
文件: 总11页 (文件大小:278K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
ISL54504, ISL54505  
®
Data Sheet  
August 29, 2007  
FN6552.1  
+1.8V to +5.5V, 2.5Ω, Single SPST Analog  
Switches  
Features  
• ON-resistance (r  
)
ON  
The Intersil ISL54504 and ISL54505 devices are low  
ON-resistance, low voltage, bidirectional, single pole/single  
throw (SPST) analog switches designed to operate from a  
single +1.8V to +5.5V supply. Targeted applications include  
- V  
- V  
- V  
= +5.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5Ω  
= +3.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0Ω  
= +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0Ω  
CC  
CC  
CC  
• r  
ON  
flatness (+4.5V Supply) . . . . . . . . . . . . . . . . . . . . . . 0.6Ω  
battery powered equipment that benefit from low r  
ON  
resistance (2.5Ω), excellent r  
switching speeds (t  
ON  
input is 1.8V CMOS compatible when using a single +3V  
supply.  
flatness (0.6Ω), and fast  
= 25ns, t = 15ns). The digital logic  
OFF  
• Single supply operation . . . . . . . . . . . . . . . . . +1.8V to +5.5V  
• Fast switching action (+4.5V Supply)  
ON  
- t  
- t  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25ns  
ON  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns  
OFF  
Cell phones, for example, often face ASIC functionality  
limitations. The number of analog input or GPIO pins may be  
limited and digital geometries are not well suited to analog  
switch performance. This family of parts may be used to  
switch in additional functionality while reducing ASIC design  
risk. The ISL54054, ISL54055 are offered in a 6 Ld  
1.2mmx1.0mmx0.4mm pitch µTDFN package, alleviating  
board space limitations.  
• ESD HBM rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV  
• 1.8V CMOS logic compatible (+3V supply)  
• Available in 6 Ld µTDFN Package  
• Pb-free available (RoHS compliant)  
Applications  
• Battery powered, handheld, and portable equipment  
- Cellular/mobile phones  
The ISL54504 has one normally open (NO) switch and  
ISL54505 has one normally closed (NC) switch.  
- Pagers  
TABLE 1. FEATURES AT A GLANCE  
- Laptops, notebooks, palmtops  
ISL54504  
1
ISL54505  
1
• Portable Test and Measurement  
• Medical Equipment  
Number of Switches  
SW  
NO  
NC  
• Audio and video switching  
1.8V r  
ON  
6Ω  
6Ω  
Related Literature  
Technical Brief TB363 “Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
(SMDs)”  
1.8V t /t  
ON OFF  
65ns/40ns  
4Ω  
65ns/40ns  
4Ω  
3V r  
ON  
3V t /t  
30ns/20ns  
2.5Ω  
30ns/20ns  
2.5Ω  
ON OFF  
5V r  
ON  
5V t /t  
25ns/15ns  
25ns/15ns  
ON OFF  
Package  
6 Ld µTDFN  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2007. All Rights Reserved  
All other trademarks mentioned are the property of their respective owners.  
ISL54504, ISL54505  
Ordering Information  
PART NUMBER  
(Note)  
PART  
MARKING  
TEMP. RANGE  
(°C)  
PACKAGE  
(Pb-Free)  
PKG. DWG. #  
ISL54504IRUZ-T*  
ISL54505IRUZ-T*  
4
5
-40 to +85  
-40 to +85  
6 Ld μTDFN (Tape and Reel) L6.1.2x1.0A  
6 Ld μTDFN (Tape and Reel) L6.1.2x1.0A  
*Please refer to TB347 for details on reel specifications.  
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and  
NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free  
products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.  
Pinouts (Note 1)  
ISL54504  
(6 LD μTDFN)  
TOP VIEW  
ISL54505  
(6 LD μTDFN)  
TOP VIEW  
1
6
5
4
IN  
1
6
5
4
NO  
GND  
N.C.  
IN  
N.C.  
2
3
GND  
2
3
V+  
V+  
COM  
COM  
NC  
NOTE:  
1. Switches Shown for Logic “0” Input.  
Truth Table  
Pin Descriptions  
LOGIC  
ISL54504  
Off  
ISL54505  
On  
PIN  
NAME  
FUNCTION  
0
1
V+  
GND  
IN  
System Power Supply Input (+1.8V to +5.5V)  
Ground Connection  
On  
Off  
NOTE: Logic “0” 0.5V. Logic “1” 1.4V with a 3V supply.  
Digital Control Input  
COM  
NO  
Analog Switch Common Pin  
Analog Switch Normally Open Pin  
Analog Switch Normally Closed Pin  
No Connect  
NC  
N.C.  
FN6552.1  
August 29, 2007  
2
ISL54504, ISL54505  
Absolute Maximum Ratings  
Thermal Information  
V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6.5V  
Input Voltages  
Thermal Resistance (Typical, Notes 3, 4)  
6 Ld µTDFN Package . . . . . . . . . . . . .  
θ
(°C/W)  
θ
(°C/W)  
JA  
239.2  
JC  
111.6  
NO, NC, IN (Note 2). . . . . . . . . . . . . . . . . . . . -0.5V to ((V+) + 0.5V)  
Output Voltages  
COM (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to ((V+) + 0.5V)  
Continuous Current NO, NC, or COM . . . . . . . . . . . . . . . . . ±300mA  
Peak Current NO, NC, or COM  
Maximum Junction Temperature (Plastic Package). . . . . . . +150°C  
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to +150°C  
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below  
http://www.intersil.com/pbfree/Pb-FreeReflow.asp  
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . . . . ± 600mA  
ESD Rating  
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>6kV  
Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>300V  
Charged Device Model. . . . . . . . . . . . . . . . . . . . . . . . . . . .>1400V  
Operating Conditions  
V+ (Positive DC Supply Voltage) . . . . . . . . . . . . . . . . . 1.8V to 5.5V  
Analog Signal Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to V+  
V
(Digital Logic Input Voltage (IN) . . . . . . . . . . . . . . . . . 0V to V+  
IN  
Temperature Range  
ISL54504IRUZ, ISL54505IRUZ . . . . . . . . . . . . . . -40°C to +85°C  
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and  
result in failures not covered by warranty.  
NOTES:  
2. Signals on NC, NO, IN, or COM exceeding V+ or GND are clamped by internal diodes. Limit forward diode current to maximum current ratings.  
3. θ is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See  
JA  
Tech Brief TB379.  
4. For θ , the “case temp” location is the center of the exposed metal pad on the package underside.  
JC  
Electrical Specifications - 5V Supply  
Test Conditions: V+ = +4.5V to +5.5V, GND = 0V, V  
Unless Otherwise Specified  
= 2.0V, V  
= 0.8V (Note 5),  
INL  
INH  
TEMP  
(°C)  
MIN  
(Notes 6, 7)  
MAX  
PARAMETER  
TEST CONDITIONS  
TYP  
(Notes 6, 7) UNITS  
ANALOG SWITCH CHARACTERISTICS  
Analog Signal Range, V  
ANALOG  
Full  
25  
0
-
-
2.2  
-
V+  
2.5  
3
V
Ω
ON-Resistance, r  
V+ = 4.5V, I  
COM  
(Note 9, See Figure 4)  
= 100mA, V  
or V  
or V  
= 0V to V+,  
= 0V to V+,  
ON  
NO  
NO  
NC  
NC  
Full  
25  
-
Ω
r
Flatness, r  
V+ = 4.5V, I = 100mA, V  
COM  
-
0.6  
-
0.65  
0.7  
25  
Ω
ON  
FLAT(ON)  
(Notes 8, 9)  
Full  
25  
-
Ω
NO or NC OFF Leakage Current, V+ = 5.5V, V  
= 0.3V, 5V, V  
NO  
or V  
NC  
= 5V, 0.3V  
-25  
-150  
-30  
-300  
1.5  
-
nA  
nA  
nA  
nA  
COM  
COM  
I
or I  
NC(OFF)  
NO(OFF)  
Full  
25  
150  
30  
COM ON Leakage Current,  
V+ = 5.5V, V  
or Floating  
= 0.3V, 5V, or V  
NO  
or V  
= 0.3V, 5V,  
2.8  
-
NC  
I
COM(ON)  
DYNAMIC CHARACTERISTICS  
Turn-ON Time, t  
Full  
300  
V+ = 4.5V, V  
or V  
= 3.0V, R = 50Ω, C = 35pF  
25  
Full  
25  
-
-
-
-
-
25  
25  
15  
16  
15  
-
-
-
-
-
ns  
ns  
ns  
ns  
ns  
ON  
NO  
NC  
L
L
(See Figure 1, Note 9)  
Turn-OFF Time, t  
OFF  
V+ = 4.5V, V  
or V  
= 3.0V, R = 50Ω, C = 35pF  
NC L L  
NO  
(See Figure 1, Note 9)  
Full  
Full  
Break-Before-Make Time Delay, t V+ = 5.5V, V  
or V  
= 3.0V, R = 50Ω, C = 35pF  
NC L L  
D
NO  
(See Figure 3, Note 9)  
Charge Injection, Q  
OFF Isolation  
V
= 0V, R = 0Ω, C = 1.0nF (See Figure 2)  
25  
25  
-
-
24  
70  
-
-
pC  
dB  
G
G
L
R
= 50Ω, C = 5pF, f = 1MHz, V  
COM  
= 1V  
P-P  
L
L
(See Figure 3)  
Total Harmonic Distortion  
Total Harmonic Distortion  
-3dB Bandwidth  
f = 20Hz to 20kHz, V  
f = 20Hz to 20kHz, V  
= 2V , R = 32Ω  
P-P  
25  
25  
25  
25  
-
-
-
-
0.15  
0.014  
250  
7
-
-
-
-
%
%
COM  
L
= 2V , R = 600Ω  
COM  
P-P  
L
Signal = 0dBm, R = 50Ω  
MHz  
pF  
L
NO or NC OFF Capacitance,  
V+ = 4.5V, f = 1MHz, V  
(See Figure 5)  
or V  
or V  
= V  
= V  
= 0V  
= 0V  
NO  
NC  
NC  
COM  
COM  
C
OFF  
COM ON Capacitance,  
V+ = 4.5V, f = 1MHz, V  
(See Figure 5)  
25  
-
18  
-
pF  
NO  
C
COM(ON)  
FN6552.1  
August 29, 2007  
3
ISL54504, ISL54505  
Electrical Specifications - 5V Supply  
Test Conditions: V+ = +4.5V to +5.5V, GND = 0V, V  
Unless Otherwise Specified (Continued)  
= 2.0V, V  
= 0.8V (Note 5),  
INL  
INH  
TEMP  
(°C)  
MIN  
(Notes 6, 7)  
MAX  
PARAMETER  
TEST CONDITIONS  
TYP  
(Notes 6, 7) UNITS  
POWER SUPPLY CHARACTERISTICS  
Power Supply Range  
Full  
25  
1.8  
-
5.5  
0.1  
2.5  
V
Positive Supply Current, I+  
V+ = 5.5V, V = 0V or V+  
IN  
-
-
0.028  
1.1  
μA  
μA  
Full  
DIGITAL INPUT CHARACTERISTICS  
Input Voltage Low, V  
Full  
Full  
Full  
-
-
-
0.8  
-
V
V
INL  
Input Voltage High, V  
2.4  
-0.1  
INH  
Input Current, I  
, I  
INH INL  
V+ = 5.5V, V = 0V or V+  
IN  
0.053  
0.1  
μA  
Electrical Specifications - 3V Supply  
Test Conditions: V+ = +2.7V to +3.6V, GND = 0V, V  
Unless Otherwise Specified  
= 1.4V, V  
= 0.5V (Note 5),  
INL  
INH  
TEMP  
(°C)  
MIN  
(Notes 6, 7)  
MAX  
PARAMETER  
TEST CONDITIONS  
TYP  
(Notes 6, 7) UNITS  
ANALOG SWITCH CHARACTERISTICS  
Analog Signal Range, V  
ANALOG  
Full  
25  
0
-
-
3.3  
-
V+  
3.5  
4.5  
1.1  
1.2  
V
Ω
Ω
Ω
Ω
ON-Resistance, r  
V+ = 2.7V, I  
COM  
(Note 9, See Figure 4)  
= 100mA, V  
or V  
or V  
= 0V to V+,  
= 0V to V+,  
ON  
NO  
NO  
NC  
NC  
Full  
25  
-
r
Flatness, r  
V+ = 2.7V, I = 100mA, V  
COM  
-
1
ON  
FLAT(ON)  
(Notes 7, 9)  
Full  
-
-
DYNAMIC CHARACTERISTICS  
Turn-ON Time, t  
V+ = 2.7V, V  
(See Figure 1, Note 9)  
or V  
= 1.5V, R = 50Ω, C = 35pF  
25  
Full  
25  
-
-
-
-
-
-
30  
30  
20  
20  
16  
-70  
-
-
-
-
-
-
ns  
ns  
ns  
ns  
pC  
dB  
ON  
NO  
NC  
L
L
Turn-OFF Time, t  
V+ = 2.7V, V  
or V  
= 1.5V, R = 50Ω, C = 35pF  
NC L L  
OFF  
NO  
(See Figure 1, Note 9)  
Full  
25  
Charge Injection, Q  
OFF Isolation  
V = 0V, R = 0Ω,C = 1.0nF (See Figure 2)  
G G L  
R
= 50Ω, C = 5pF, f = 1MHz, V  
COM  
= 1V  
P-P  
25  
L
L
(See Figure 3)  
Total Harmonic Distortion  
Total Harmonic Distortion  
-3dB Bandwidth  
f = 20Hz to 20kHz, V  
f = 20Hz to 20kHz, V  
= 2V , R = 32Ω  
P-P  
25  
25  
25  
25  
-
-
-
-
0.36  
0.03  
250  
6
-
-
-
-
%
%
COM  
L
= 2V , R = 600Ω  
P-P  
COM  
L
Signal = 0dBm, R = 50Ω  
MHz  
pF  
L
NO or NC OFF Capacitance,  
f = 1MHz, V  
f = 1MHz, V  
f = 1MHz, V  
or V  
or V  
or V  
= V  
= V  
= V  
= 0V (See Figure 5)  
= 0V (See Figure 5)  
= 0V (See Figure 5)  
NO  
NO  
NO  
NC  
NC  
NC  
COM  
COM  
COM  
C
OFF  
COM OFF Capacitance,  
25  
25  
-
-
15  
18  
-
-
pF  
pF  
C
COM(OFF)  
COM ON Capacitance,  
C
COM(ON)  
POWER SUPPLY CHARACTERISTICS  
Positive Supply Current, I+ V+ = 3.6V, V = 0V or V+  
25  
-
-
0.013  
0.7  
-
-
μA  
μA  
IN  
Full  
DIGITAL INPUT CHARACTERISTICS  
Input Voltage Low, V  
Full  
Full  
Full  
-
-
-
0.5  
-
V
V
INL  
Input Voltage High, V  
1.4  
-0.1  
INH  
Input Current, I  
, I  
INH INL  
V+ = 3.6V, V = 0V or V+  
IN  
0.058  
0.1  
μA  
FN6552.1  
August 29, 2007  
4
ISL54504, ISL54505  
Electrical Specifications - 1.8V Supply  
Test Conditions: V+ = +1.8V, GND = 0V, V  
Unless Otherwise Specified  
= 1V, V  
= 0.4V (Note 5),  
INL  
INH  
TEMP  
(°C)  
MIN  
(Notes 6, 7)  
MAX  
(Notes 6, 7) UNITS  
PARAMETER  
TEST CONDITIONS  
TYP  
ANALOG SWITCH CHARACTERISTICS  
Analog Signal Range, V  
ANALOG  
Full  
25  
0
-
-
6
-
V+  
6.5  
7
V
Ω
Ω
ON-Resistance, r  
V+ = 1.8V, I  
= 10mA, V  
NO  
or V = 0V to V+  
NC  
ON  
COM  
(Note 9, See Figure 4)  
Full  
-
DYNAMIC CHARACTERISTICS  
Turn-ON Time, t  
V+ = 1.8V, V  
(See Figure 1, Note 9)  
or V  
= 1.5V, R = 50Ω, C = 35pF  
25  
Full  
25  
-
-
-
-
-
65  
95  
40  
65  
8.2  
-
-
-
-
-
ns  
ns  
ns  
ns  
pC  
ON  
NO  
NC  
L
L
Turn-OFF Time, t  
V+ = 1.8V, V  
or V  
= 1.5V, R = 50Ω, C = 35pF  
NC L L  
OFF  
NO  
(See Figure 1, Note 9)  
Full  
25  
Charge Injection, Q  
DIGITAL INPUT CHARACTERISTICS  
Input Voltage Low, V  
V = V+/2, R = 0Ω, C = 1.0nF (See Figure 2)  
G G L  
Full  
Full  
-
-
-
0.4  
-
V
V
INL  
Input Voltage High, V  
NOTES:  
1
INH  
5. V = input voltage to perform proper function.  
IN  
6. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.  
7. Parts are 100% tested at +25°C. Over-temperature limits established by characterization and are not production tested.  
8. Flatness is defined as the difference between maximum and minimum value of on-resistance over the specified analog signal range.  
9. Limits established by characterization and are not production tested.  
Test Circuits and Waveforms  
V+  
V+  
t < 20ns  
r
t < 20ns  
f
C
LOGIC  
INPUT  
50%  
0V  
t
V
OFF  
OUT  
NO OR NC  
IN  
SWITCH  
INPUT  
COM  
SWITCH  
INPUT  
V
NO  
0V  
V
OUT  
90%  
90%  
R
50Ω  
C
L
35pF  
LOGIC  
INPUT  
L
GND  
SWITCH  
OUTPUT  
t
ON  
Logic input waveform is inverted for switches that have the opposite  
logic sense.  
Repeat test for all switches. C includes fixture and stray  
L
capacitance.  
R
L
----------------------------  
V
= V  
OUT  
(NO or NC)  
R
+ r  
(ON)  
L
FIGURE 1A. MEASUREMENT POINTS  
FIGURE 1B. TEST CIRCUIT  
FIGURE 1. SWITCHING TIMES  
FN6552.1  
August 29, 2007  
5
ISL54504, ISL54505  
Test Circuits and Waveforms (Continued)  
V+  
C
SWITCH  
OUTPUT  
ΔV  
V
R
OUT  
OUT  
G
COM  
NO OR NC  
GND  
V
OUT  
V
INH  
ON  
ON  
LOGIC  
INPUT  
V
G
IN  
OFF  
C
L
V
INL  
LOGIC  
INPUT  
Q = ΔV  
x C  
L
OUT  
FIGURE 2A. MEASUREMENT POINTS  
FIGURE 2B. TEST CIRCUIT  
FIGURE 2. CHARGE INJECTION  
V+  
C
V+  
C
*
r
= V /I  
1
ON  
1
NO OR NC  
SIGNAL  
GENERATOR  
NO OR NC  
V
NX  
V
OR V  
INH  
INL  
IN  
V
1
I
1
IN  
0V OR V+  
100mA  
COM  
GND  
COM  
ANALYZER  
GND  
R
L
*
I
= 10mA AT V+ = 1.8V  
1
FIGURE 3. OFF ISOLATION TEST CIRCUIT  
FIGURE 4. r  
TEST CIRCUIT  
ON  
V+  
C
V
NO OR NC  
OR V  
INH  
IN  
INL  
IMPEDANCE  
ANALYZER  
COM  
GND  
FIGURE 5. CAPACITANCE TEST CIRCUIT  
FN6552.1  
August 29, 2007  
6
ISL54504, ISL54505  
Supply Sequencing And Overvoltage Protection  
Detailed Description  
With any CMOS device, proper power supply sequencing is  
required to protect the device from excessive input currents,  
which might permanently damage the IC. All I/O pins contain  
ESD protection diodes from the pin to V+ and to GND (see  
Figure 7). To prevent forward biasing these diodes, V+ must  
be applied before any input signals, and the input signal  
voltages must remain between V+ and GND.  
The ISL54504 and ISL54505 are bidirectional, single  
pole/single throw (SPST) analog switches. They offer  
precise switching capability from a single 1.8V to 5.5V  
supply with low ON-resistance (2.5Ω) and high speed  
operation (t  
= 25ns, t = 15ns). The devices are  
ON  
OFF  
especially well suited for portable battery powered  
equipment due to their low operating supply voltage (1.8V),  
low power consumption (0.15µW), low leakage currents  
(300nA max) and tiny µTDFN package.  
If these conditions cannot be guaranteed then precautions  
must be implemented to prohibit the current and voltage at  
the logic pin and signal pins from exceeding the maximum  
ratings of the switch. The following two methods can be used  
to provide additional protection to limit the current in the  
event that the voltage at a signal pin or logic pin goes below  
ground or above the V+ rail.  
The ISL54504 is a single normally open (NO) SPST analog  
switch. The ISL54505 is a single normally closed (NC) SPST  
analog switch.  
External V+ Series Resistor  
For improved ESD and latch-up immunity, Intersil  
recommends adding a 100Ω resistor in series with the V+  
power supply pin of the ISL54050 IC (see Figure 6).  
Logic inputs can easily be protected by adding a 1kΩ  
resistor in series with the input (see Figure 7). The resistor  
limits the input current below the threshold that produces  
permanent damage and the sub-microamp input current  
produces an insignificant voltage drop during normal  
operation.  
During an overvoltage transient event (such as occurs  
during system level IEC 61000 ESD testing), substrate  
currents can be generated in the IC that can trigger parasitic  
SCR structures to turn ON, creating a low impedance path  
from the V+ power supply to ground. This will result in a  
significant amount of current flow in the IC, which can  
potentially create a latch-up state or permanently damage  
the IC. The external V+ resistor limits the current during this  
over-stress situation and has been found to prevent latch-up  
or destructive damage for many overvoltage transient  
events.  
This method is not acceptable for the signal path inputs.  
Adding a series resistor to the switch input defeats the  
purpose of using a low r  
switch. Connecting Schottky  
ON  
diodes to the signal pins (as shown in Figure 7) will shunt the  
fault current to the supply or to ground, thereby protecting  
the switch. These Schottky diodes must be sized to handle  
the expected fault current.  
OPTIONAL  
SCHOTTKY  
DIODE  
Under normal operation the sub-microamp I  
current of the  
DD  
IC produces an insignificant voltage drop across the 100Ω  
series resistor resulting in no impact to switch operation or  
performance.  
V+  
OPTIONAL  
PROTECTION  
RESISTOR  
IN  
V
X
V+  
C
V
NX  
COM  
OPTIONAL  
PROTECTION  
RESISTOR  
100Ω  
GND  
NO  
NC  
OPTIONAL  
SCHOTTKY  
DIODE  
COM  
IN  
FIGURE 7. OVERVOLTAGE PROTECTION  
GND  
Power-Supply Considerations  
The ISL54504/ISL54505 construction is typical of most  
single supply CMOS analog switches in that they have two  
supply pins: V+ and GND. V+ and GND drive the internal  
CMOS switches and set their analog voltage limits. Unlike  
switches with a 4V maximum supply voltage, the  
FIGURE 6. V+ SERIES RESISTOR FOR ENHANCED ESD AND  
LATCH-UP IMMUNITY  
ISL54504/ISL54505 5.5V maximum supply voltage provides  
plenty of room for the 10% tolerance of 3.6V supplies, as  
well as room for overshoot and noise spikes.  
FN6552.1  
August 29, 2007  
7
ISL54504, ISL54505  
The minimum recommended supply voltage is 1.8V but the  
An OFF switch behaves like a capacitor and passes higher  
frequencies with less attenuation, resulting in signal  
feedthrough from a switch’s input to output. Off isolation is  
the resistance of this signal feedthrough. Figure 16 details  
the high off isolation provided by the ISL54504/ISL54505. At  
1MHz, off isolation is about 70dB in 50Ω systems,  
decreasing approximately 20dB per decade as frequency  
increases. Higher load impedances decrease off isolation  
due to the voltage divider action of the switch OFF  
impedance and the load impedance.  
part will operate with a supply below 1.8V. It is important to  
note that the input signal range, switching times, and  
ON-resistance degrade at lower supply voltages. Refer to  
the “Electrical Specifications” tables starting on page 3 and  
the Typical Performance Curves” starting on page 8 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.  
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.  
This family of switches cannot be operated with bipolar  
supplies because the input switching point becomes  
negative in this configuration.  
Logic-Level Thresholds  
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.  
This switch family is 1.8V CMOS compatible (0.5V and 1.4V)  
over a supply range of 2V to 3.6V (see Figure 14). At 3.6V  
the V level is about 0.95V. This is still below the 1.8V  
IH  
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 50Ω systems, the ISL54504/ISL54505 has a -3dB  
bandwidth of 250MHz (see Figure 15). The frequency  
response is very consistent over a wide V+ range and for  
varying analog signal levels.  
Typical Performance Curves T = +25°C, Unless Otherwise Specified.  
A
3.0  
2.5  
2.0  
1.5  
1.0  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
I
= 100mA  
COM  
V+ = 2.7V  
+85°C  
+25°C  
-40°C  
V+ = 3V  
V+ = 4.5V  
V+ = 5V  
V+ = 4.5V  
= 100mA  
0.5  
0.0  
I
COM  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
0
1
2
3
4
5
V
(V)  
V
(V)  
COM  
COM  
FIGURE 8. ON-RESISTANCE vs SUPPLY VOLTAGE vs  
SWITCH VOLTAGE  
FIGURE 9. ON-RESISTANCE vs SWITCH VOLTAGE  
FN6552.1  
August 29, 2007  
8
ISL54504, ISL54505  
Typical Performance Curves T = +25°C, Unless Otherwise Specified. (Continued)  
A
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
8
7
6
5
4
3
2
1
V+ = 1.8V  
= 10mA  
COM  
V+ = 2.7V  
= 100mA  
I
I
COM  
+85°C  
+85°C  
+25°C  
-40°C  
+25°C  
-40°C  
0
0.5  
1.0  
1.5  
(V)  
2.0  
2.5  
0
0.2 0.4 0.6 0.8  
1.0 1.2 1.4 1.6 1.8  
(V)  
2.0  
V
V
COM  
COM  
FIGURE 10. ON-RESISTANCE vs SWITCH VOLTAGE  
FIGURE 11. ON-RESISTANCE vs SWITCH VOLTAGE  
100  
70  
-40°C  
-40°C  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
60  
50  
40  
30  
20  
10  
0
+25°C  
+85°C  
+25°C  
+85°C  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
6.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
6.0  
V+ (V)  
V+ (V)  
FIGURE 12. TURN-ON TIME vs SUPPLY VOLTAGE  
FIGURE 13. TURN-OFF TIME vs SUPPLY VOLTAGE  
1.4  
0
-1  
-2  
-3  
-4  
-5  
V+ = 1.8V TO 5.5V  
= 1V  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
V
COM  
P-P  
V
INH  
-6  
-7  
-8  
V
INL  
-9  
-10  
-11  
-12  
-13  
1.5  
2.0  
2.5  
3.0  
3.5  
V+ (V)  
4.0  
4.5  
5.0  
5.5  
100k  
1M  
10M  
FREQUENCY (Hz)  
100M  
1G  
FIGURE 14. DIGITAL SWITCHING POINT vs SUPPLY VOLTAGE  
FIGURE 15. FREQUENCY RESPONSE  
FN6552.1  
August 29, 2007  
9
ISL54504, ISL54505  
Typical Performance Curves T = +25°C, Unless Otherwise Specified. (Continued)  
A
-20  
-30  
-40  
-50  
25  
20  
15  
10  
5
V+ = 1.8V TO 5.5V  
-60  
-70  
-80  
0
V+ = 5V  
-5  
-90  
V+ = 1.8V  
V+ = 3.3V  
-10  
-15  
-20  
-100  
-110  
-120  
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0  
(V)  
1k  
10k  
100k  
1M  
10M  
100M  
1G  
V
COM  
FREQUENCY (Hz)  
FIGURE 16. OFF ISOLATION  
FIGURE 17. CHARGE INJECTION vs SWITCH VOLTAGE  
Die Characteristics  
SUBSTRATE POTENTIAL (POWERED UP):  
GND  
TRANSISTOR COUNT:  
PROCESS:  
Submicron CMOS  
FN6552.1  
August 29, 2007  
10  
ISL54504, ISL54505  
Ultra Thin Dual Flat No-Lead Plastic Package (UTDFN)  
L6.1.2x1.0A  
A
E
B
6 LEAD ULTRA THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE  
MILLIMETERS  
PIN 1  
REFERENCE  
D
SYMBOL  
MIN  
0.45  
-
NOMINAL  
MAX  
0.55  
0.05  
NOTES  
2X  
0.10 C  
A
A1  
A3  
b
0.50  
-
-
-
2X  
0.10 C  
0.127 REF  
-
TOP VIEW  
0.15  
0.95  
1.15  
0.20  
0.25  
1.05  
1.25  
5
DETAIL A  
0.10 C  
0.08 C  
D
1.00  
-
A
E
1.20  
-
7X  
e
0.40 BSC  
-
C
A1 A3  
L
0.30  
0.40  
0.35  
0.40  
0.50  
-
SEATING  
PLANE  
SIDE VIEW  
L1  
N
0.45  
-
4X  
e
DETAIL B  
6
3
-
2
5X  
L
Ne  
θ
3
1
3
0
12  
4
L1  
Rev. 2 8/06  
NOTES:  
1. Dimensioning and tolerancing conform to ASME Y14.5-1994.  
2. N is the number of terminals.  
6
4
b 6X  
0.10 C A B  
3. Ne refers to the number of terminals on E side.  
4. All dimensions are in millimeters. Angles are in degrees.  
0.05 C  
NOTE 3  
BOTTOM VIEW  
5. Dimension b applies to the metallized terminal and is measured  
between 0.15mm and 0.30mm from the terminal tip.  
0.1x45°  
CHAMFER  
6. The configuration of the pin #1 identifier is optional, but must be  
located within the zone indicated. The pin #1 identifier may be  
either a mold or mark feature.  
7. Maximum package warpage is 0.05mm.  
8. Maximum allowable burrs is 0.076mm in all directions.  
9. JEDEC Reference MO-255.  
A3  
A1  
10. For additional information, to assist with the PCB Land Pattern  
Design effort, see Intersil Technical Brief TB389.  
DETAIL A  
DETAIL B PIN 1 LEAD  
1.00  
1.40  
0.20  
0.30  
0.35  
0.45  
0.20  
0.40  
10  
LAND PATTERN  
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.  
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality  
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without  
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and  
reliable. However, no responsibility is assumed by Intersil or its subsidiaries 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 Intersil or its subsidiaries.  
For information regarding Intersil Corporation and its products, see www.intersil.com  
FN6552.1  
August 29, 2007  
11  

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