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ISL84780 の電気的特性と機能

ISL84780のメーカーはIntersil Corporationです、この部品の機能は「Quad 2:1 Analog Multiplexer」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL84780
部品説明 Quad 2:1 Analog Multiplexer
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL84780 Datasheet, ISL84780 PDF,ピン配置, 機能
®
Data Sheet
December 27, 2004
ISL84780
FN6099.1
Ultra Low ON-Resistance, Low Voltage,
Single Supply, Quad 2:1 Analog
Multiplexer
The Intersil ISL84780 device is a low ON-resistance, low
voltage, bidirectional, Quad SPDT (Dual DPDT) analog
switch designed to operate from a single +1.6V to +3.6V
supply. Targeted applications include battery-powered
equipment that benefit from low on-resistance, and fast
switching speeds (tON = 12ns, tOFF = 8ns). The digital logic
input is 1.8V logic-compatible when using a single +3V supply.
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
“mux-in” additional functionality while reducing ASIC design
risk. The ISL84780 is offered in small form factor packages,
alleviating board space limitations.
The ISL84780 is a committed Quad SPDT that consists of
four normally open (NO) and four normally closed (NC)
switches. This configuration can also be used as a diff dual 2-
to-1 multiplexer/demultiplexer or a quad 2-to1
multiplexer/demultiplexer. The ISL84780 is pin compatible
withwww.DataSheet4U.com the MAX4780.
TABLE 1. FEATURES AT A GLANCE
ISL84780
Number of Switches
4
SW Quad SPDT (Dual DPDT)
3.0V RON
3.0V tON/tOFF
1.8V RON
1.8V tON/tOFF
Packages
0.36
12ns/8ns
0.54
19ns/11ns
16Ld 3x3 TQFN, 16Ld TSSOP
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Features
• Pin Compatible Replacement for the MAX4780
• ON Resistance (RON)
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.36
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.54
• RON Matching between Channels . . . . . . . . . . . . . . . . .0.13
• RON Flatness Across Signal Range . . . . . . . . . . . . . . .0.05
• Single Supply Operation. . . . . . . . . . . . . . . . . +1.6V to +3.6V
• Low Power Consumption (PD). . . . . . . . . . . . . . . . . . <0.2µW
• Fast Switching Action
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8ns
• Guaranteed Break-Before-Make
• 1.8V Logic Compatible (+3V supply)
• Available in 16 lead 3x3 thin QFN and 16 lead TSSOP
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV
• Pb-Free Available (RoHS Compliant)
Applications
• Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
• Portable Test and Measurement
• Medical Equipment
• Audio and Video Switching
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL84780 pdf, ピン配列
ISL84780
Absolute Maximum Ratings
V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 4.7V
Input Voltages
NO, NC, IN (Note 2) . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)
Output Voltages
COM (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)
Continuous Current NO, NC, or COM . . . . . . . . . . . . . . . . . ±300mA
Peak Current NO, NC, or COM
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . ±500mA
ESD Rating:
HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>6kV
MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>300V
CDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>1kV
Thermal Information
Thermal Resistance (Typical, Note 3)
θJA (°C/W)
16 Ld 3x3 TQFN Package . . . . . . . . . . . . . . . . . . . .
75
16 Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . .
150
Maximum Junction Temperature (Plastic Package). . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(Lead Tips Only)
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
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. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications - 3V Supply
Test Conditions: V+ = +2.7V to +3.3V, GND = 0V, VINH = 1.4V, VINL = 0.5V (Notes 4, 6),
Unless Otherwise Specified
PARAMETER
TEST CONDITIONS
TEMP (NOTE 5)
(°C) MIN
TYP
(NOTE 5)
MAX UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
Full 0
- V+ V
ON Resistance, RON
V+ = 2.7V, ICOM = 100mA, VNO or VNC = 0V to V+,
(See Figure 5)
25
Full
-
-
0.4 0.6
- 0.7
RON Matching Between Channels, V+ = 2.7V, ICOM = 100mA, VNO or VNC = Voltage at
25
-
0.13 0.2
RON
max RON, (Note 9)
Full -
- 0.2
RON Flatness, RFLAT(ON)
V+ = 2.7V, ICOM = 100mA, VNO or VNC = 0V to V+
25
-
0.05 0.15
(Note 7)
Full -
- 0.15
NO or NC OFF Leakage Current, V+ = 3.3V, VCOM = 0.3V, 3V, VNO or VNC = 3V, 0.3V
25
-3
-
3 nA
INO(OFF) or INC(OFF)
Full -20
-
20 nA
COM ON Leakage Current,
ICOM(ON)
V+ = 3.3V, VCOM = 0.3V, 3V, or VNO or VNC = 0.3V, 3V,
or Floating
25
Full
-4
-30
-
-
4 nA
30 nA
DYNAMIC CHARACTERISTICS
Turn-ON Time, tON
V+ = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF,
(See Figure 1, Note 8)
25
Full
-
-
12 20 ns
- 25 ns
Turn-OFF Time, tOFF
V+ = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF,
(See Figure 1, Note 8)
25
Full
-
-
8 14 ns
- 17 ns
Break-Before-Make Time Delay, tD V+ = 3.3V, VNO or VNC = 1.5V, RL = 50, CL = 35pF, Full
1
3
- ns
(See Figure 3, Note 8)
Charge Injection, Q
OFF Isolation
CL = 1.0nF, VG = 0V, RG = 0, (See Figure 2)
25 - -97 - pC
RL = 50, CL = 5pF, f = 100kHz, VCOM = 1VRMS, 25 - 68 - dB
(See Figure 4)
Crosstalk (Channel-to-Channel)
RL = 50, CL = 5pF, f = 100kHz, VCOM = 1VRMS,
25
-
-98
- dB
(See Figure 6)
Total Harmonic Distortion
f = 20Hz to 20kHz, VCOM = 2VP-P, RL = 32
NO or NC OFF Capacitance, COFF f = 1MHz, VNO or VNC = VCOM = 0V, (See Figure 7)
COM ON Capacitance, CCOM(ON) f = 1MHz, VNO or VNC = VCOM = 0V, (See Figure 7)
25
25
25
- 0.002 -
%
- 62 - pF
- 125 - pF
3 FN6099.1
December 27, 2004


3Pages


ISL84780 電子部品, 半導体
ISL84780
Test Circuits and Waveforms (Continued)
V+
C
SIGNAL
GENERATOR
NO or NC
IN 0V or V+
RON = V1/1mA
VNX
NO or NC
1mA
V1
V+
C
IN 0V or V+
ANALYZER
RL
COM
GND
COM
GND
FIGURE 4. OFF ISOLATION TEST CIRCUIT
FIGURE 5. RON TEST CIRCUIT
SIGNAL
GENERATOR
NO or NC
0V or V+
IN1
V+
C
COM
50
ANALYZER
RL
COM
NC or NO
GND
FIGURE 6. CROSSTALK TEST CIRCUIT
N.C.
Detailed Description
The ISL84780 is a bidirectional, quad single pole/double
throw (SPDT) analog switch that offers precise switching
capability from a single 1.6V to 3.6V supply with low on-
resistance (0.36) and high speed operation (tON = 12ns,
tOFF = 8ns). The device is especially well suited for portable
battery-powered equipment due to its low operating supply
voltage (1.6V), low power consumption (5.4µW max), low
leakage currents (30nA max), and the tiny TQFN and TSSOP
packages. The ultra low on-resistance and Ron flatness
provide very low insertion loss and distortion to applications
that require signal reproduction.
Supply Sequencing and Overvoltage Protection
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 8). To prevent forward biasing these diodes, V+ must
be applied before any input signals, and the input signal
6
IMPEDANCE
ANALYZER
NO or NC
V+
C
IN 0V or V+
COM
GND
FIGURE 7. CAPACITANCE TEST CIRCUIT
voltages must remain between V+ and GND. If these
conditions cannot be guaranteed, then one of the following
two protection methods should be employed.
Logic inputs can easily be protected by adding a 1kresistor
in series with the input (See Figure 8). 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.
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 RON switch, so two small signal
diodes can be added in series with the supply pins to provide
overvoltage protection for all pins (See Figure 8). These
additional diodes limit the analog signal from 1V below V+ to
1V above GND. The low leakage current performance is
unaffected by this approach, but the switch signal range is
reduced and the resistance may increase, especially at low
supply voltages.
FN6099.1
December 27, 2004

6 Page



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共有リンク

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部品番号部品説明メーカ
ISL84780

Quad 2:1 Analog Multiplexer

Intersil Corporation
Intersil Corporation
ISL84781

8 to 1 Analog Multiplexer

Intersil Corporation
Intersil Corporation
ISL84782

Differential 4 to 1 Analog Multiplexer

Intersil Corporation
Intersil Corporation


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