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| STG3157 Low voltage low on-resistance SPDT switch with break-before-make feature Features High speed: - tPD = 0.3 ns (max) at VCC = 4.5 V - tPD = 0.8 ns (max) at VCC = 3.0 V - tPD = 1.2 ns (max) at VCC = 2.3 V Ultra low power dissipation: - ICC = 1 A (max) at TA = 85 C Low on-resistance; at VIN = 0 V: - RON = 7 (max TA = 85 C) at VCC = 4.5 V - RON = 9 (max TA = 85 C) at VCC = 3.0 V Wide operating voltage range: - VCC (OPR) = 1.65 V to 5.5 V single supply TTL threshold ON control input at VCC = 2.7 to 3.6 V Pin and function compatible with 74 series 3157 Latch-up performance exceeds 150 mA (JESD 17) SOT323-6L (connected to common port D) when the IN input is held high, and OFF (a high impedance state exists between the two ports) when IN is held low. Switch S2 is ON (connected to common port D) when the IN input is held low and OFF (a high impedance state exists between the two ports) when IN is held high. Additional key features are fast switching speed, break-before-make delay time, and very low power consumption. All inputs and outputs are equipped with protection circuits to protect against static discharge, giving them immunity from ESD and transient excess voltage. Description The STG3157 is a high-speed CMOS analog SPDT (single-pole double-throw) switch or 2:1 multiplexer/demultiplexer bus switch manufactured using silicon gate C2MOS technology. It is designed to operate from a 1.65 V to 5.5 V supply, making the device ideal for portable applications. The STG3157 features very low on-resistance (< 9 ) at VCC = 3.0 V. The IN input is provided to control the SPDT switch, and is compatible with standard CMOS output. Switch S1 is ON Table 1. Device summary Order code STG3157CTR Package SOT323-6L Packing Tape and reel April 2010 Doc ID 9007 Rev 2 1/18 www.st.com 18 Contents STG3157 Contents 1 2 3 Pin connections and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 3.2 3.3 DC Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 AC Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Analog switch characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 5 6 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2/18 Doc ID 9007 Rev 2 STG3157 Pin connections and functions 1 Pin connections and functions Figure 1. Pin connections and IEC logic symbols Table 2. Truth table IN H L Switch S1 ON OFF (1) Switch S2 OFF (1) ON 1. High impedance Table 3. Pin descriptions Pin N 1, 3 4 6 5 2 Symbol S1, S2 D IN VCC GND Name and function Independent channels Common channels Control Positive supply voltage Ground (0 V) Figure 2. Input equivalent circuit Doc ID 9007 Rev 2 3/18 Electrical ratings STG3157 2 Electrical ratings Stressing the device above the ratings listed in the "Absolute maximum ratings" table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4. Symbol VCC VI VIC VO IIKC IIK IOK IO ICC or IGND Tstg TL Supply voltage DC input voltage DC control input voltage DC output voltage DC input diode current on control pin (VIN < 0V) DC input diode current (VIN < 0V) DC output diode current DC output current DC VCC or ground current Storage temperature Lead temperature (10 s) Absolute maximum ratings Parameter Value -0.5 to +7.0 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 50 50 20 +128 100 -65 to 150 300 Unit V V V V mA mA mA mA mA C C Table 5. Symbol VCC VI VIC VO Top dt/dv Recommended operating conditions Parameter Supply voltage (1) Input voltage Control input voltage Output voltage Operating temperature Input rise and fall time control input VCC = 1.65V to 2.7V VCC = 3.0 to 4.5V Value 1.65 to 4.5 0 to VCC 0 to 5.5 0 to VCC -55 to 125 0 to 20 ns/V 0 to 10 Unit V V V V C 1. Truth table guaranteed: 1.2 V to 6.0 V 4/18 Doc ID 9007 Rev 2 STG3157 Electrical characteristics 3 3.1 Table 6. Electrical characteristics DC Electrical characteristics DC specifications Test conditions Value TA = 25C Vcc (V) Min. High level input voltage Low level input voltage 1.65-1.95 2.3-2.5 2.7-3.6 1.65-1.95 2.3-2.5 2.7-3.6 VS = 0V IS = 30mA 4.5 VS = 2.4V IS = 30mA VS = 4.5V IS = 30mA VS = 0V IS = 100mA VS = 3V IS = 24mA VS = 0V IS = 8mA VS = 2.3V IS = 8mA VS = 0V IS = 4mA VS = 1.65V IS = 4mA 4.5 Onresistance match between channels 3.0 2.3 1.65 VS = 3.15V IS = 30mA VS = 2.1V IS = 24mA VS = 1.6V IS = 8mA VS = 1.15V IS = 4mA 4.4 4.9 6.1 5.2 7.8 6.5 9.6 9.0 14 0.10 0.10 0.20 0.35 0.75VCC 0.7VCC 2 0.25VCC 0.3VCC 0.8 7 12 15 9 20 12 30 20 50 Typ. Max. Min. 0.75VCC 0.7VCC 2 0.25VCC 0.3VCC 0.8 7 12 15 9 20 12 30 20 50 Max. Min. 0.75VCC 0.7VCC 2 0.25VCC 0.3VCC 0.8 9 14.5 18 11 24 14.5 36 24 60 V V Max. -40 to 85C -55 to 125C Unit Symbol Parameter VIH VIL 3.0 RON Switch onresistance 2.3 1.65 RON Doc ID 9007 Rev 2 5/18 Electrical characteristics Table 6. DC specifications (continued) Test conditions Symbol Parameter Vcc (V) Min. VS = 0V to VCC IS = 30mA VS = 0V to VCC IS = 24mA VS = 0V to VCC IS = 8mA VS = 0V to VCC IS = 4mA VS = 0 to VCC VIN = 0 to 5.5V VIN = VCC or GND Typ. Max. Min. Max. Min. TA = 25C Value -40 to 85C STG3157 -55 to 125C Max. Unit 5.0 3 3.3 RFLAT Onresistance flatness 2.5 6 14 1.8 OFF state leakage current Input leakage current Quiescent supply current 80 IOFF 1.65-195 0.05 0.1 1 10 A IIN 0 - 5.5 0.05 0.1 1 10 A ICC 1.65 - 4.3 1 1 10 A 6/18 Doc ID 9007 Rev 2 STG3157 Electrical characteristics 3.2 AC Electrical characteristics CL = 50 pF, RL = 500 Table 7. AC specification Test conditions Value TA = 25C Vcc (V) Min. 1.65-1.95 Typ. Max. Min. Max. Min. Max. -40 to 85C -55 to 125C Unit Symbol Parameter tLH, tHL Propagation delay 2.3-2.7 3.0-3.3 4.5-5.5 1.65-1.95 7 3.5 2.5 1.7 3 2 1.5 1.7 0.5 23 VI = Open 1.2 0.8 0.3 15 11 7 5.2 10 7 5 3.5 7 3.5 2.5 1.7 3 2 1.5 1.7 0.5 1.2 0.8 0.3 20 14 7.6 5.7 13 7.5 5.3 3.8 7 3.5 2.5 1.7 3 2 1.5 1.7 0.5 1.8 ns 1.2 0.5 27 17 ns 9 7 16 9 ns 6.5 5 ns tPZH, tPZL Output enable time (D to Sn) 2.3-2.7 3.0-3.3 4.5-5.5 1.65-1.95 tPLZ, tPHZ Output disable time (D to Sn) 2.3-2.7 3.0-3.3 4.5-5.5 tD Q Break-beforemake time delay Charge injection 1.65-5.5 5 3.3 pC 19 Doc ID 9007 Rev 2 7/18 Electrical characteristics STG3157 3.3 Analog switch characteristics CL = 5 pF, RL = 50 , TA = 25 C Table 8. Analog switch characteristics Test conditions Value TA = 25C Vcc (V) Min. Typ. -57 -54 250 Max. Min. Max. Min. Max. dB dB MHz RL = 50 f = 10MHz RL = 50 f = 10MHz RL = 50 -40 to 85C -55 to 125C Unit Symbol Parameter OIRR Xtalk BW Off isolation Crosstalk -3dB bandwidth Control pin input capacitance Sn port capacitance D port capacitance when switch is enabled 1.65-5.5 1.65-5.5 1.65-5.5 CIN 5 CSn 5.0 f = 1MHz 13 pF CD 5.0 f = 1MHz 21 8/18 Doc ID 9007 Rev 2 STG3157 Test circuits 4 Figure 3. Test circuits On-resistance Figure 4. Bandwidth Figure 5. OFF leakage Figure 6. Channel-to-channel crosstalk Figure 7. OFF isolation Figure 8. ON leakage Doc ID 9007 Rev 2 9/18 Test circuits STG3157 Figure 9. Test circuit Table 9. Test circuit Test tPLH, tPHL tPZL, tPLZ tPZH, tPHZ Switch Open VCC GND Note: CL = 5/35 pF or equivalent: (includes jig capacitance) RL = 50 or equivalent RT = ZOUT of pulse generator (typically 50 ) Figure 10. Break-before-make time delay 10/18 Doc ID 9007 Rev 2 STG3157 Figure 11. Switching time and charge injection Test circuits Figure 12. Charge injection (VGEN = 0 V, RGEN = 0 , RL = 1 M, CL = 100 pF) Doc ID 9007 Rev 2 11/18 Package information STG3157 5 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 12/18 Doc ID 9007 Rev 2 STG3157 Table 10. Dim. Min. A 0.80 Typ. Max. 1.10 Min. 31.5 SOT323-6L mechanical data mm. Package information inch Typ. Max. 43.3 A1 A2 b 0.00 0.80 0.15 0.10 1.00 0.30 0.0 31.5 5.9 3.9 39.4 11.8 C D E E1 e e1 L 0.10 1.80 1.80 1.15 0.65 1.3 0.10 0.18 2.20 2.40 1.35 3.9 70.9 70.9 45.3 25.6 51.2 7.1 86.6 94.5 53.1 0.30 3.9 11.8 Figure 13. Package dimensions Doc ID 9007 Rev 2 13/18 Package information STG3157 Table 11. SOT323-6L footprint recommendation Dim. A B C D E F mm. 2.88 0.78 0.36 0.65 1.05 1.65 inch 0.113 0.031 0.014 0.026 0.041 0.065 Figure 14. SOT323-6L footprint recommendation 14/18 Doc ID 9007 Rev 2 STG3157 Package information Table 12. SOT323-6L tape information Dim D E Po T max. D1 min. F K max. P2 R W P1 Ao, Bo, Ko mm. 1.50 +0.1/0 1.75 0.1 4.00 0.1 0.40 1 3.5 0.05 2.40 2.00 0.05 25 8.00 0.30 4.00 0.05 min to 0.50 max inch 0.059 +0.004/0 0.069 0.004 0.157 0.004 0.016 0.039 0.138 0.002 0.094 0.079 0.002 0.984 0.315 0.012 0.157 0.002 min to 0.020 max Figure 15. SOT323-6L tape information Doc ID 9007 Rev 2 15/18 Package information STG3157 Table 13. SOT323-6L reel information Dim Tape size A max. B min. C D min. N min. G T max. mm. 8.0 0.30 180.0 1.5 13.0 0.20 20.2 60 8.4 +2/-0 14.4 inch 0.315 0.012 7.086 0.059 0.512 0.008 0.795 2.362 0.319 +0.079/-0 0.567 Figure 16. SOT323-6L reel information 16/18 Doc ID 9007 Rev 2 STG3157 Revision history 6 Revision history Table 14. Date 02-Sep-2002 Document revision history Revision 1 Initial release. Document reformatted. In the Features list on the coverpage, updated the "Latch-up performance exceeds" value from 300 mA to 150 mA. Minor text changes throughout the document. Replaced Order codes table on the coverpage with Table 1: Device summary. Added ECOPACK(R) statement in Section 5: Package information. Changes 19-Apr-2010 2 Doc ID 9007 Rev 2 17/18 STG3157 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. (c) 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 18/18 Doc ID 9007 Rev 2 |
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