1
®
FN6128.5
ISL8484
Ultra Low ON-Resistance, +1.65V to +4.5V,
Single Supply, Dual SPDT Analog Switch
The Intersil ISL8484 device is a low ON-resistance, low
voltage, bidirectional, dual single-pole/double-throw (SPDT)
analog switch designed to operate from a single +1.65V to
+4.5V supply. Targeted applications include battery powered
equipment that benefit from low r
ON
(0.29Ω) and fast
switching speeds (t
ON
= 40ns, t
OFF
= 20ns). The digital logic
input is 1.8V logic-compatible when using a single +3V supply.
With a supply voltage of 4.2V and logic high voltage of 2.85V
at both logic inputs, the part draws only 12µA max of I+
current.
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 part may be used to “mux-in”
additional functionality while reducing ASIC design risk. The
ISL8484 is offered in small form factor packages, alleviating
board space limitations.
The ISL8484 is a committed dual single-pole/double-throw
(SPDT) that consist of two normally open (NO) and two
normally closed (NC) switches. This configuration can be
used as a dual 2-to-1 multi-plexer. The ISL8484 is pin
compatible with the MAX4684 and MAX4685.
Features
Pin Compatible Replacement for the MAX4684 and
MAX4685
ON-Resistance (r
ON
)
- V+ = +4.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.29Ω
- V+ = +3.0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.33Ω
- V+ = +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55Ω
•r
ON
Matching Between Channels . . . . . . . . . . . . . . . . .0.06Ω
•r
ON
Flatness Across Signal Range. . . . . . . . . . . . . . . . 0.03Ω
Single Supply Operation . . . . . . . . . . . . . . . +1.65V to +4.5V
Low Power Consumption (P
D
). . . . . . . . . . . . . . . <0.45µW
Fast Switching Action (V+ = +4.3V)
-t
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
-t
OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns
ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>8kV
Guaranteed Break-Before-Make
1.8V Logic Compatible (+3V supply)
Low I+ Current when V
IN
H is not at the V+ Rail
Available in 10 Ld 3x3 TDFN and 10 Ld MSOP
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
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”
TABLE 1. FEATURES AT A GLANCE
ISL8484
NUMBER OF SWITCHES 2
SW SPDT or 2-1 MUX
4.3V r
ON
0.29Ω
4.3V t
ON
/t
OFF
40ns/20ns
3V r
ON
0.33Ω
3V t
ON
/t
OFF
50ns/27ns
1.8V r
ON
0.55Ω
1.8V t
ON
/t
OFF
70ns/54ns
Packages 10 Ld 3x3 Thin DFN, 10 Ld MSOP
Data Sheet May 12, 2008
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006-2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN6128.5
May 12, 2008
Pinout (Note 1)
ISL8484
(10 LD TDFN, MSOP)
TOP VIEW
NOTE:
1. Switches Shown for Logic “0” Input.
V+
NO1
COM1
IN1
NC1
NO2
COM2
IN2
NC2
GND
1
2
3
4
5
10
9
8
7
6
Truth Table
LOGIC NC1 and NC2 NO1 and NO2
0ONOFF
1OFFON
NOTE: Logic “0” 0.5V. Logic “1” 1.4V with a 3V supply.
Pin Descriptions
PIN FUNCTION
V+ System Power Supply Input (+1.65V to +4.5V)
GND Ground Connection
INx Digital Control Input
COMx Analog Switch Common Pin
NOx Analog Switch Normally Open Pin
NCx Analog Switch Normally Closed Pin
Ordering Information
PART NUMBER PART MARKING
TEMP. RANGE
(°C) PACKAGE
PKG.
DWG. #
ISL8484IR* 484 -40 to +85 10 Ld 3x3 TDFN L10.3x3A
ISL8484IU* 8484 -40 to +85 10 Ld MSOP M10.118
ISL8484IRZ*
(Note)
484Z -40 to +85 10 Ld 3x3 TDFN
(Pb-free)
L10.3x3A
ISL8484IUZ*
(Note)
8484Z -40 to +85 10 Ld MSOP
(Pb-free)
M10.118
*Add “-T” suffix for tape and reel. 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 100%
matte tin plate PLUS ANNEAL - e3 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.
ISL8484
3
FN6128.5
May 12, 2008
Absolute Maximum Ratings Thermal Information
V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to 5.5V
Input Voltages
NO, NC, IN (Note 2). . . . . . . . . . . . . . . . . . . . . -0.5 to ((V+) + 0.5V)
Output Voltages
COM (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to ((V+) + 0.5V)
Continuous Current NO, NC, or COM . . . . . . . . . . . . . . . . . ±300mA
Peak Current NO, NC, or COM
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . . . ±500mA
ESD Rating:
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>8kV
Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>500V
Charged Device Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . >1.4kV
Thermal Resistance (Typical) θ
JA
(°C/W) θ
JC
(°C/W)
10 Ld 3x3 TDFN Package (Notes 3, 4) 52 11
10 Ld MSOP Package (Note 5) . . . . . . 140 N/A
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
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . -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
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
4. For θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
5. θ
JA
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 - 4.3V Supply Test Conditions: V+ = +3.9V to +4.5V, GND = 0V, V
INH
= 1.4V, V
INL
= 0.5V (Note 6),
Unless otherwise specified.
PARAMETER TEST CONDITIONS
TEMP
(°C)
MIN
(Notes 7, 11) TYP
MAX
(Notes 7, 11) UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, V
ANALOG
Full 0 - V+ V
ON-Resistance, r
ON
V+ = 3.9V, I
COM
= 100mA, V
NO
or V
NC
= 0V to V+
(Figure 5, Note 9)
25 - 0.30 0.5 Ω
Full - 0.35 0.7 Ω
r
ON
Matching Between Channels,
Δr
ON
V+ = 3.9V, I
COM
= 100mA, V
NO
or V
NC
= Voltage
at max R
ON
(Note 9, 10)
25 - 0.06 0.07 Ω
Full - 0.08 0.08 Ω
r
ON
Flatness, r
FLAT(ON)
V+ = 3.9V, I
COM
= 100mA, V
NO
or V
NC
= 0V to V+
(Note 8, 9)
25 - 0.03 0.15 Ω
Full - 0.04 0.15 Ω
NO or NC OFF Leakage Current,
I
NO(OFF)
or I
NC(OFF)
V+ = 4.5V, V
COM
= 0.3V, 3V, V
NO
or V
NC
= 3V, 0.3V 25 -100 - 100 nA
Full -195 - 195 nA
COM ON Leakage Current,
I
COM(ON)
V+ = 4.5V, V
COM
= 0.3V, 3V, or V
NO
or V
NC
= 0.3V,
3V, or Floating
25 -100 - 100 nA
Full -195 - 195 nA
DYNAMIC CHARACTERISTICS
Turn-ON Time, t
ON
V+ = 3.9V, V
NO
or V
NC
= 3.0V, R
L
= 50Ω, C
L
= 35pF
(Figure 1)
25 - 40 - ns
Full - 50 - ns
Turn-OFF Time, t
OFF
V+ = 3.9V, V
NO
or V
NC
= 3.0V, R
L
= 50Ω, C
L
= 35pF
(Figure 1)
25 - 20 - ns
Full - 30 - ns
Break-Before-Make Time Delay, t
D
V+ = 4.5V, V
NO
or V
NC
= 3.0V, R
L
= 50Ω, C
L
= 35pF
(Figure 3)
Full - 8 - ns
Charge Injection, Q C
L
= 1.0nF, V
G
= 0V, R
G
= 0Ω (Figure 2) 25 - 170 - pC
OFF Isolation R
L
= 50Ω, C
L
= 5pF, f = 100kHz, V
COM
= 1V
RMS
(Figure 4)
25 - 62 - dB
Crosstalk (Channel-to-Channel) R
L
= 50Ω, C
L
= 5pF, f = 100kHz, V
COM
= 1V
RMS
(Figure 6)
25 - -85 - dB
ISL8484

ISL8484IRZ-T

Mfr. #:
Manufacturer:
Renesas / Intersil
Description:
Analog Switch ICs SWITCH DL SPDT 0 4OHM S 1 65V 4 5V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet