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Part: ISL5121
Category:
Analog & Mixed-Signal Processing
Description: Low-Voltage, Single Supply, Dual Spst, SPDT Analog Switches
Company: Intersil Corporation
Datasheet: Download ISL5121 datasheet File size : 416 kB
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ISL5120, ISL5121, ISL5122, ISL5123
Da ta Sheet F eb ru ar y 2003 FN6022.5
Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches
The Intersil ISL5120ISL5123 devices are precision, bidirectional, dual analog switches designed to operate from a single +2.7V to +12V supply. Targeted applications include battery powered equipment that benefit from the devices' low power consumption (5µW), low leakage currents (100pA max), and fast switching speeds (tON = 28ns, tOFF = 20ns). 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 "muxin" additional functionality while reducing ASIC design risk. Some of the smallest packages are available, alleviating board space limitations, and making Intersil's newest line of low-voltage switches an ideal solution. The ISL5120/ISL5121/ISL5122 are dual single-pole/singlethrow (SPST) devices. The ISL5120 has two normally open (NO) switches; the ISL5121 has two normally closed (NC) switches; the ISL5122 has one NO and one NC switch and can be used as an SPDT. The ISL5123 is a committed SPDT, which is perfect for use in 2-to-1 multiplexer applications.
TABLE 1. FEATURES AT A GLANCE ISL5120 Number of Switches SW 1 / SW 2 3.3V RON 3.3V tON / tOFF 5V RON 5V tON / tOFF 12V RON 12V tON / tOFF Pack ages 8 Ld SOIC, 8 Ld SOT-23, 8 Ld MSOP 11 25ns / 17ns 19 28ns / 20ns 2 NO / NO 32 40ns /20ns ISL 5121 2 NC / NC 32 40ns /20ns 19 28ns / 20ns 11 25ns / 17ns ISL 5122 2 NO / NC 32 40ns /20ns 19 28ns / 20ns 11 25ns / 17ns ISL512 3 1 SPDT 32 40ns /20ns 19 28ns / 20ns 11 25ns / 17ns 8 Ld SOIC, 6 Ld SOT-23
Features
· Improved (lower RON, faster switching), pin compatible replacements for ISL8454144 · Fully specified at 3.3V, 5V, and 12V supplies · ON resistance (RON) . . . . . . . . . . . . . . . . . . . . . . . . . 19 · RON matching between channels . . . . . . . . . . . . . . . . . 1 · Low charge injection . . . . . . . . . . . . . . . . . . . . . . . 5pC (Max) · Single supply operation . . . . . . . . . . . . . . . . . +2.7V to +12V · Low power consumption (PD). . . . . . . . . . . . . . . . . . . . < 5µW · Low leakage current . . . . . . . . . . . . . . . . . . . . . . . . . 10nA · Fast switching action - tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28ns - tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns · Guaranteed break-before-make (ISL5122/ISL5123 only) · Minimum 2000V ESD protection per method 3015.7 · TTL, CMOS compatible · Available in SOT-23 packaging
Applications
· Battery powered, handheld, and portable equipment - Cellular/mobile phones - Pagers - Laptops, notebooks, palmtops · Communications systems - Militar y radios - PBX, PABX · Test equipment - Ultrasound - Electrocardiograph · Heads-up displays · Audio and video switching · Various circuits - +3V/+5V DACs and ADCs - Sample and hold circuits - Digital filters - Operational amplifier gain switching networks - High frequency analog switching - High speed multiplexing - Integrator reset circuits
8 Ld SOIC, 8 Ld SOT-23
Related Literature
· Technical Brief TB363 "Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)"
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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. 2003. All Rights Reserved
ISL5120 Pinouts
(Note 1) ISL5120 (SOIC, MSOP) TOP VIEW
NO 1 1 C O M1 2 I N2 3 GND 4 8 V+ 7 IN1 6 COM2 5 NO 2
ISL5120 (SOT-23) TOP VIEW
NO 1 1 V+ 2 IN2 3 COM2 4 8 COM1 7 IN1 6 GND 5 NO2
ISL5121 (SOIC) TOP VIEW
ISL5121 (SOT-23) TOP VIEW
NC1 1 COM1 2 IN2 3 GND 4
8 V+ 7 IN1 6 COM2 5 NC2
NC1 1 V+ 2 IN2 3 C O M2 4
8 C O M1 7 IN1 6 GND 5 NC2
ISL5122 (SOIC) TOP VIEW
NO1 1 COM1 2 IN2 3 GND 4 8 V+ 7 I N1 6 C O M2 5 NC 2
ISL5122 (SOT-23) TOP VIEW
NO1 1 V+ 2 IN2 3 COM2 4 8 COM1 7 IN1 6 GND 5 NC2
ISL5123 (SOIC) TOP VIEW
NO 1 COM 2 NC 3 GND 4 8 V+ 7 IN 6 N.C. 5 N.C.
ISL5123 (SOT-23) TOP VIEW
IN 1 V+ 2 GND 3
6 NO 5 COM 4 NC
NOTE: 1. Switches Shown for Logic "0" Input.
Truth Table
ISL512 0 LOGIC 0 1 NOTE: SW 1,2 OFF ON IS L 5 1 2 1 SW 1,2 ON OFF ISL 5122 SW 1 OFF ON SW 2 ON OFF ISL5 123 PIN NC PIN NO ON OFF OFF ON
Pin Descriptions
PIN V+ GND IN COM NO NC N.C. FUNCTION System Power Supply Input (+2.7V to +12V) Ground Connection Digital Control Input Analog Switch Common Pin Analog Switch Normally Open Pin Analog Switch Normally Closed Pin No Internal Connection
Logic "0" 0.8V. Logic "1" 2.4V.
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ISL5120 Ordering Information
PART NO. (BRAND) (NOTE 2) ISL5120 CB ISL5120 CU * (120C) ISL5120 IB ISL5120IH-T (120I) ISL5121 CB ISL5121 IB ISL5121IH-T (121I) ISL5122 CB ISL5122 IB ISL5122IH-T (122I) ISL5123 CB ISL5123 IB ISL5123IH-T (123I) NOTES: 2. Most surface mount devices are available on tape and reel; add "-T" to suffix. * In Development. TEMP. RANGE (oC) 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 -40 to 85 0 to 70 -40 to 85 -40 to 85 PACKAGE 8 Ld SOIC 8 Ld MSOP 8 Ld SOIC 8 Ld SOT-23 8 Ld SOIC 8 Ld SOIC 8 Ld SOT-23 8 Ld SOIC 8 Ld SOIC 8 Ld SOT-23 8 Ld SOIC 8 Ld SOIC 6 Ld SOT-23 PKG. NO. M8.15 M8.11 8 M8.15 P8.064 M8.15 M8.15 P8.064 M8.15 M8.15 P8.064 M8.15 M8.15 P6.064
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