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NC7SB3157 TinyLogic Low Voltage UHS Analog Switch 2-Channel Multiplexer/Demultiplexer
January 2000 Revised June 2000
NC7SB3157 TinyLogic Low Voltage UHS Analog Switch 2-Channel Multiplexer/Demultiplexer
General Description
The NC7SB3157 is a high performance, Analog Switch 2channel CMOS multiplexer/demultiplexer from Fairchild's Ultra High Speed Series of TinyLogic. The device is fabricated with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low on resistance. The break before make select circuitry prevents disruption of signals on the B Port due to both switches temporarily being enabled during select pin switching. The device is specified to operate over the 1.65 to 5.5V VCC operating range. The control input tolerates voltages up to 5.5V independent of the VCC operating range.
Features
s Useful in both analog and digital applications s Space saving SC70 6-lead surface mount package s Low on resistance; < 10 on typ @ 3.3V VCC s Broad VCC operating range; 1.65V to 5.5V s Power down high impedance control input s Overvoltage tolerance of control input to 7.0V s Break before make enable circuitry
Ordering Code:
Order Number NC7SB3157P6X Package Number MAA06A Product Code Top Mark B7A Package Description 6-Lead SC70, EIAJ SC88, 1.25mm Wide Supplied As 3k Units on Tape and Reel
Logic Symbol
Connection Diagrams
Pin Descriptions
Pin Names A, B0, B1 SEL Description Data Ports Control Input
(Top View) Pin One Orientation Diagram
Function Table
Input (SEL) L H
H = HIGH Logic Level L = LOW Logic Level
Function B0 Connected to A B1 Connected to A
AAA = Product Code Top Mark - see ordering code. Note: Orientation of Top Mark determines Pin One location. Read the top product code mark left to right, Pin One is the lower left pin (see diagram).
TinyLogic is a trademark of Fairchild Semiconductor Corporation.
(c) 2000 Fairchild Semiconductor Corporation
DS500326
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NC7SB3157
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Switch Voltage (VS) (Note 2) DC Input Voltage (VIN) (Note 2) DC Input Diode Current (IIK) @ (IIK) VIN < 0V DC Output Current (IOUT) DC VCC or Ground Current (ICC/IGND) Storage Temperature Range (TSTG) Junction Temperature under Bias (TJ) Junction Lead Temperature (TL) (Soldering, 10 seconds) Power Dissipation (PD) @ +85C 260C 180 mW
-0.5V to +7.0V -0.5V to VCC +0.5V -0.5V to +7.0V -50 mA
128 mA
Recommended Operating Conditions (Note 3)
Supply Voltage Operating (VCC) Control Input Voltage (VIN) Switch Input Voltage (VIN) Output Voltage (VOUT) Operating Temperature (TA) Input Rise and Fall Time (tr, tf) Control Input VCC = 2.3V - 3.6V Control Input VCC = 4.5V - 5.5V Thermal Resistance (JA) 0 ns/V to 10 ns/V 0 ns/V to 5 ns/V 350C/W 1.65V to 5.5V 0V to VCC 0V to VCC 0V to VCC
-40C to +85C
100 mA -65C to +150C
150C
Note 1: Absolute maximum ratings are DC values beyond which the device may be damaged or have its useful life impaired. The datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifications. Note 2: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 3: Control input must be held HIGH or LOW, it must not float.
DC Electrical Characteristics
Symbol VIH VIL IIN IOFF RON Parameter HIGH Level Input Voltage LOW Level Input Voltage Input Leakage Current Switch ON Resistance (Note 4) 3.0 2.3 1.65 ICC Quiescent Supply Current All Channels ON or OFF Analog Signal Range RRANGE ON Resistance Over Signal Range (Note 4)(Note 8) RON ON Resistance Match Between Channels (Note 4)(Note 5)(Note 6) VCC (V) 2.3 - 5.5 1.65 - 1.95 2.3 - 5.5 0 - 5.5 4.5 3 5 7 4 10 5 13 6.5 17 5.5 VCC 4.5 3.0 2.3 1.65 4.5 3.0 2.3 1.65 0.15 0.2 0.5 0.5 0 Min 0.7 VCC 0.25 VCC 0.3 VCC 0.1 0.1 7 12 15 9 20 12 30 20 50 1 VCC 0 1.65 - 1.95 0.75 VCC TA = +25C Typ Max TA = -40C to +85C Min 0.75 VCC 0.7 VCC 0.25 VCC 0.3 VCC 1 1 7 12 15 9 20 12 30 20 50 10 VCC 25 50 100 300 Max V V A A A V IA = -30 mA, 0 VBn VCC IA = -24 mA, 0 VBn VCC IA = -8 mA, 0 VBn VCC IA = -4 mA, 0 VBn VCC IA = -30 mA, VBn = 3.15 IA = -24 mA, VBn 2.1 IA = -8 mA, VBn = 1.6 IA = -4 mA, VBn = 1.15 0 VIN 5.5V 0 A, B VCC VIN = 0V, IO = 30 mA VIN = 2.4V, IO = -30 mA VIN = 4.5V, IO = -30 mA VIN = 0V, IO = 24 mA VIN = 3V, IO = -24 mA VIN = 0V, IO = 8 mA VIN = 2.3V, IO = -8 mA VIN = 0V, IO = 4 mA VIN = 1.65V, IO = -4 mA VIN = VCC or GND IOUT = 0 Units Conditions
OFF State Leakage Current 1.65 - 5.5
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NC7SB3157
DC Electrical Characteristics
Symbol Rflat Parameter On Resistance Flatness (Note 4)(Note 5)(Note 7) VCC (V) 5.0 3.3 2.5 1.8
(Continued)
TA = +25C TA = -40C to +85C Max Min Max IA = -30 mA, 0 VBn VCC IA = -24 mA, 0 VBn VCC IA = -8 mA, 0 VBn VCC IA = -4 mA, 0 VBn VCC
Units
Conditions
Min
Typ 6 12 28 125
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B Ports). Note 5: Parameter is characterized but not tested in production. Note 6: RON = RON max - RON min measured at identical VCC, temperature and voltage levels. Note 7: Flatness is defined as the difference between the maximum and minimum value of on resistance over the specified range of conditions. Note 8: Guaranteed by Design.
AC Electrical Characteristics
Symbol tPHL tPLH Parameter Propagation Delay Bus to Bus (Note 10) tPZL tPZH Output Enable Time Turn on Time (A to Bn) tPLZ tPHZ Output Disable Time Turn Off Time (A Port to B Port) tB-M VCC (V) 1.65 - 1.95 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 1.65 - 1.95 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 1.65 - 1.95 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 Break Before Make Time 1.65 - 1.95 (Note 9) 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 Q OIRR Xtalk BW Charge Injection (Note 9) Off Isolation (Note 11) Crosstalk -3dB Bandwidth 5.0 3.3 1.65 - 5.5 1.65 - 5.5 1.65 - 5.5 7 3.5 2.5 1.7 3 2 1.5 0.8 0.5 0.5 0.5 0.5 7 3 -57 -54 250 1.2 0.8 0.3 23 13 6.9 5.2 12.5 7 5 3.5 7 3.5 2.5 1.7 3 2 1.5 0.8 0.5 0.5 0.5 0.5 pC dB dB MHz CL = 0.1 nF, VGEN = 0V RGEN = 0 RL = 50 f = 10MHz RL = 50 f = 10MHz RL = 50 Figure 4 Figure 5 Figure 6 Figure 9 ns Figure 3 1.2 0.8 0.3 24 14 7.6 5.7 13 7.5 5.3 3.8 ns VI = 2 x VCC for tPLZ VI = 0V for tPHZ Figures 1, 2 ns VI = 2 x VCC for tPZL VI = 0V for tPZH Figures 1, 2 ns VI = OPEN Figures 1, 2 Min TA = +25C Typ Max TA = -40C to +85C Min Max Units Conditions Fig. No.
Note 9: Guaranteed by Design. Note 10: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the on resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). Note 11: Off Isolation = 20 log10 [VA / VBn]
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NC7SB3157
Capacitance
Symbol CIN CIO-B CIOA-ON
(Note 12)
Parameter Typ 2.3 6.5 18.5 Max Units pF pF pF Conditions VCC = 0V VCC = 5.0V VCC = 5.0V Figure 7 Figure 8 Figures
Control Pin Input Capacitance B Port Off Capacitance A Port Capacitance when switch is enabled
Note 12: TA = +25C, f = 1 MHz, Capacitance is characterized but not tested in production.
AC Loading and Waveforms
Note: Input driven by 50 source terminated in 50 Note: CL includes load and stray capacitance Note: Input PRR = 1.0 MHz; tW = 500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
FIGURE 3. Break Before Make Interval Timing
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NC7SB3157
AC Loading and Waveforms
(Continued)
FIGURE 4. Charge Injection Test
FIGURE 5. Off Isolation
FIGURE 6. Crosstalk
FIGURE 7. Channel Off Capacitance
FIGURE 8. Channel On Capacitance
FIGURE 9. Bandwidth
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NC7SB3157
Tape and Reel Specification
TAPE FORMAT Package Designator P6X Carrier Trailer (Hub End) TAPE DIMENSIONS inches (millimeters) Tape Section Leader (Start End) Number Cavities 125 (typ) 3000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed
Package SC70-6
Tape Size 8 mm
DIM A 0.093 (2.35)
DIM B 0.096 (2.45)
DIM F (3.5 0.10)
DIM Ko (1.35 0.10)
DIM P1 0.157 (4)
DIM W 0.315 0.004 (8 0.1)
0.138 0.004 0.053 0.004
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NC7SB3157
Tape and Reel Specification
REEL DIMENSIONS inches (millimeters)
(Continued)
Tape Size 8 mm
A 7.0 (177.8)
B 0.059 (1.50)
C 0.512 (13.00)
D 0.795 (20.20)
N 2.165 (55.00)
W1 0.331 + 0.059/-0.000 (8.40 + 1.50/-0.00)
W2 0.567 (14.40)
W3 W1 + 0.078/-0.039 (W1 + 2.00/-1.00)
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NC7SB3157 TinyLogic Low Voltage UHS Analog Switch 2-Channel Multiplexer/Demultiplexer
Physical Dimensions inches (millimeters) unless otherwise noted
6-Lead SC70, EIAJ SC88, 1.25mm Wide Package Number MAA06A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 8 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com

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