廬
ISL8499
Data Sheet
January 27, 2005
FN6111.0
Ultra Low ON-Resistance, +1.65V to +4.5V,
Single Supply, Quad SPDT (Dual DPDT)
Analog Switch
The Intersil ISL8499 device is a low ON-resistance, low
voltage, bidirectional, Quad SPDT (Dual DPDT) 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
(0.24鈩? and fast
switching speeds (t
ON
= 15ns, t
OFF
= 13ns). 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 10碌A(chǔ) max of
ICC 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 鈥渕ux-in鈥?/div>
additional functionality while reducing ASIC design risk. The
ISL8499 is offered in small form factor packages, alleviating
board space limitations.
The ISL8499 consists of four SPDT switches. It is configured
as a dual double-pole/double-throw (DPDT) device with two
logic control inputs that control two SPDT switches each. The
configuration can be used as a dual differential 2-to-1
multiplexer/demultiplexer. The ISL8499 is pin compatible with
the STG3699 and DG2799.
TABLE 1. FEATURES AT A GLANCE
ISL8499
Number of Switches
SW
4.3V R
ON
4.3V t
ON
/t
OFF
3.0V R
ON
3.0V t
ON
/t
OFF
1.8V R
ON
1.8V t
ON
/t
OFF
Packages
4
Quad SPDT (Dual DPDT)
0.24鈩?/div>
15ns/13ns
0.26鈩?/div>
21ns/17ns
0.45鈩?/div>
51ns/43ns
16 Ld 3x3 QFN, 16 Ld TSSOP
Features
鈥?Drop in Replacement for the STG3699 and DG2799
鈥?ON Resistance (R
ON
)
- V+ = +4.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.24鈩?/div>
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.26鈩?/div>
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45鈩?/div>
鈥?R
ON
Matching between Channels . . . . . . . . . . . . . . . . 0.04鈩?/div>
鈥?R
ON
Flatness Across Signal Range . . . . . . . . . . . . . . . 0.05鈩?/div>
鈥?Single Supply Operation . . . . . . . . . . . . . . . +1.65V to +4.5V
鈥?Low Power Consumption (PD) . . . . . . . . . . . . . . . . . <0.2碌W
鈥?Fast Switching Action (V+ = +4.3V)
- t
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
- t
OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13ns
鈥?Guaranteed Break-Before-Make
鈥?1.8V Logic Compatible (+3V supply)
鈥?Low ICC Current when VinH is not at the V+ Rail
鈥?Available in 16 lead 3x3 QFN and 16 lead TSSOP
鈥?ESD HBM Rating
- COM Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9kV
- All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4kV
鈥?/div>
Pb-Free Available as an Option (RoHS Compliant)
(see Ordering Info)
Applications
鈥?Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
鈥?Portable Test and Measurement
鈥?Medical Equipment
鈥?Audio and Video Switching
Related Literature
鈥?Technical Brief TB363 鈥淕uidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)鈥?/div>
鈥?Application Note AN557 鈥淩ecommended Test Procedures
for Analog Switches鈥?/div>
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. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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