STG3157_10 STMICROELECTRONICS [STMicroelectronics], STG3157_10 Datasheet

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STG3157_10

Manufacturer Part Number
STG3157_10
Description
Low voltage low on-resistance SPDT switch with break-before-make feature
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
Features
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 C
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 Ω) at V
control the SPDT switch, and is compatible with
standard CMOS output. Switch S1 is ON
Table 1.
April 2010
High speed:
– t
– t
– t
Ultra low power dissipation:
– I
Low on-resistance; at V
– R
– R
Wide operating voltage range:
– V
TTL threshold ON control input at
V
Pin and function compatible with 74 series
3157
Latch-up performance exceeds
150 mA (JESD 17)
CC
PD
PD
PD
CC
CC
= 2.7 to 3.6 V
ON
ON
= 0.3 ns (max) at V
= 0.8 ns (max) at V
= 1.2 ns (max) at V
= 1 µA (max) at T
STG3157CTR
(OPR) = 1.65 V to 5.5 V single supply
= 7 Ω (max T
= 9 Ω (max T
CC
Order code
Device summary
= 3.0 V. The IN input is provided to
A
A
= 85 °C) at V
= 85 °C) at V
IN
A
= 0 V:
CC
CC
CC
= 85 °C
= 4.5 V
= 3.0 V
= 2.3 V
2
MOS
Low voltage low on-resistance SPDT switch
CC
CC
= 4.5 V
= 3.0 V
Doc ID 9007 Rev 2
SOT323-6L
Package
(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.
with break-before-make feature
SOT323-6L
Tape and reel
Packing
STG3157
www.st.com
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STG3157_10 Summary of contents

Page 1

Features ■ High speed: – 0.3 ns (max – 0.8 ns (max – 1.2 ns (max ■ Ultra low power dissipation: – ...

Page 2

Contents Contents 1 Pin connections and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ...

Page 3

STG3157 1 Pin connections and functions Figure 1. Pin connections and IEC logic symbols Table 2. Truth table High impedance Table 3. Pin descriptions Pin Nº Figure 2. Input equivalent ...

Page 4

Electrical ratings 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 ...

Page 5

STG3157 3 Electrical characteristics 3.1 DC Electrical characteristics Table 6. DC specifications Test conditions Symbol Parameter Vcc (V) 1.65-1.95 High level V input 2.3-2.5 IH voltage 2.7-3.6 1.65-1.95 Low level V input 2.3-2.5 IL voltage 2.7-3.6 4.5 3.0 Switch on- ...

Page 6

Electrical characteristics Table 6. DC specifications (continued) Test conditions Symbol Parameter Vcc (V) 5.0 3.3 On- R resistance FLAT flatness 2.5 1.8 OFF state I leakage 1.65-195 OFF current Input I leakage 0 - 5.5 IN current Quiescent I supply ...

Page 7

STG3157 3.2 AC Electrical characteristics = 500 Ω pF Table 7. AC specification Symbol Parameter Vcc (V) 1.65-1.95 2.3-2.7 Propagation delay 3.0-3.3 4.5-5.5 1.65-1.95 2.3-2.7 Output enable t , ...

Page 8

Electrical characteristics 3.3 Analog switch characteristics = 50 Ω pF Table 8. Analog switch characteristics Test conditions Symbol Parameter Vcc (V) OIRR Off isolation 1.65-5.5 Xtalk Crosstalk 1.65-5.5 -3dB BW 1.65-5.5 bandwidth Control ...

Page 9

STG3157 4 Test circuits Figure 3. On-resistance Figure 5. OFF leakage Figure 7. OFF isolation Figure 4. Bandwidth Figure 6. Channel-to-channel crosstalk Figure 8. ON leakage Doc ID 9007 Rev 2 Test circuits 9/18 ...

Page 10

Test circuits Figure 9. Test circuit Table 9. Test circuit Note 5/ equivalent: (includes jig capacitance Ω or equivalent pulse generator (typically 50 Ω OUT Figure ...

Page 11

STG3157 Figure 11. Switching time and charge injection Figure 12. Charge injection ( Ω MΩ, C GEN GEN L Doc ID 9007 Rev 2 Test circuits = 100 pF) L 11/18 ...

Page 12

Package information 5 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...

Page 13

STG3157 Table 10. SOT323-6L Dim Figure 13. Package dimensions mechanical data mm. Min. Typ. Max. 0.80 1.10 0.00 0.10 0.80 1.00 0.15 0.30 0.10 0.18 1.80 2.20 1.80 2.40 ...

Page 14

Package information Table 11. SOT323-6L footprint recommendation Dim Figure 14. SOT323-6L footprint recommendation 14/18 mm. 2.88 0.78 0.36 0.65 1.05 1.65 Doc ID 9007 Rev 2 STG3157 inch 0.113 0.031 0.014 0.026 0.041 0.065 ...

Page 15

STG3157 Table 12. SOT323-6L tape information Dim max. D1 min max Ao, Bo, Ko Figure 15. SOT323-6L tape information mm. 1.50 +0.1/0 1.75 ±0.1 4.00 ±0.1 0.40 1 3.5 ±0.05 ...

Page 16

Package information Table 13. SOT323-6L reel information Dim Tape size A max. B min min. N min max. Figure 16. SOT323-6L reel information 16/18 mm. 8.0 ±0.30 180.0 1.5 13.0 ±0.20 20.2 60 8.4 +2/-0 14.4 ...

Page 17

STG3157 6 Revision history Table 14. Document revision history Date 02-Sep-2002 19-Apr-2010 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 ...

Page 18

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 ...

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