Revised December 2005 NC7SBU3157 • FSAU3157 Low Voltage SPDT Analog Switch with 2V Undershoot Protection General Description The NC7SBU3157 or FSAU3157 is a high performance, singlepole/double-throw (SPDT) Analog Switch or 2:1 Multiplexer/ Demultiplexer Bus Switch. 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. Fairchild’s integrated Undershoot Hardened Circuit (UHC¥ ) senses undershoot at the I/Os, and responds by preventing voltage differentials from developing and turning the switch on. Features O Useful in both analog and digital applications O Space saving SC70 6-lead surface mount package O Low On Resistance: 10: on typ @ 3.3V VCC O Broad VCC operating range: 1.65V to 5.5V O Rail-to-Rail signal handling O Power down high impedance control input O Overvoltage tolerance of control input to 7.0V O Break before make enable circuitry O 250 MHz - 3dB bandwidth O Available in Lead (Pb) Free packaging Ordering Code: Package Number Product Code Top Mark NC7SBU3157P6X MAA06A U7A 6-Lead SC70, EIAJ SC88, 1.25mm Wide NC7SBU3157P6X_NL MAA06A U7A Pb-Free 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel FSAU3157P6X MAA06A U7A 6-Lead SC70, EIAJ SC88, 1.25mm Wide Order Number Package Description Supplied As 3k Units on Tape and Reel 3k Units on Tape and Reel Pb-Free package per JEDEC J-STD-020B. © 2005 Fairchild Semiconductor Corporation DS500618 www.fairchildsemi.com NC7SBU3157 • FSAU3157 Low Voltage SPDT Analog Switch with 2V Undershoot Protection April 2002 NC7SBU3157 • FSAU3157 Logic Symbol Connection Diagrams (Top View) Analog Symbol Pin One Orientation Diagram 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). Pin Descriptions Function Table Input (S) Function Pin Names L B0 Connected to A A, B0, B1 Data Ports H B1 Connected to A S Control Input H HIGH Logic Level L LOW Logic Level www.fairchildsemi.com 2 Description Recommended Operating Conditions (Note 3) 0.5V to 7.0V 0.5V to VCC 0.5V 0.5V to 7.0V Supply Voltage (VCC) DC Switch Voltage (VS) (Note 2) DC Input Voltage (VIN) (Note 2) DC Input Diode Current (IIK) @ (IIK) VIN 0V Supply Voltage Operating (VCC) 50 mA DC Output Current (IOUT) 128 mA DC VCC or Ground Current (ICC/IGND) Storage Temperature Range (TSTG) Junction Temperature under Bias (TJ) Power Dissipation (PD) @ 85qC 0V to VCC Output Voltage (VOUT) 0V to VCC 40qC to 85qC Input Rise and Fall Time (tr, tf) Control Input VCC 2.3V - 3.6V 0 ns/V to 10 ns/V Control Input VCC 4.5V - 5.5V 0 ns/V to 5 ns/V Thermal Resistance (TJA) 260qC (Soldering, 10 seconds) 0V to VCC Switch Input Voltage (VIN) Operating Temperature (TA) r100 mA 65qC to 150qC 150qC Junction Lead Temperature (TL) 1.65V to 5.5V Control Input Voltage (VIN) 350qC/W 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. 180 mW 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 Parameter HIGH Level Input Voltage VIL LOW Level Input Voltage IIN Input Leakage Current IOZ OFF State Leakage Current RON Switch On Resistance (Note 4) VCC TA (V) Min 1.65 1.95 0.75 VCC 2.3 5.5 0.7 VCC Analog Signal Range RRANGE 'RON Units Conditions Max V 0.7 VCC 0.25 VCC V 0.3 VCC 0.3 VCC 0 5.5 r0.05 r0.1 r1 PA 0 d VIN d 5.5V 1.65 5.5 r0.05 r0.1 r1 PA 0 d A, B d VCC 3.0 15.0 15.0 : VIN 0V, IO 4.5 5.0 15.0 15.0 : VIN 2.4V, IO 7.0 15.0 15.0 : VIN 4.5V, IO 4.0 20.0 20.0 : VIN 0V, IO 24 mA 10.0 20.0 20.0 : VIN 3V, IO 24 mA 5.0 30.0 30.0 : VIN 0V, IO 8 mA 13.0 30.0 30.0 : VIN 2.3V, IO 6.5 50.0 50.0 : VIN 0V, IO 17.0 50.0 50.0 : VIN 1.65V, IO VIN VCC or GND 1.65 All Channels ON or OFF Min 0.25 VCC 2.3 5.5 2.3 Quiescent Supply Current 40qC to 85qC TA Max 0.75 VCC 1.65 1.95 3.0 ICC 25qC Typ 5.5 VCC 1.0 0 VCC 0 10.0 PA VCC V IOUT 30 mA 30 mA 30 mA 8 mA 4 mA 4 mA 0 On Resistance 4.5 25.0 IA 30 mA, 0 d VBn d VCC Over Signal Range 3.0 50.0 IA 24 mA, 0 d VBn d VCC (Note 4)(Note 8) 2.3 100 IA 8 mA, 0 d VBn d VCC 1.65 300 IA 4 mA, 0 d VBn d VCC : On Resistance Match 4.5 0.15 IA 30 mA, VBn Between Channels 3.0 0.2 IA 24 mA, VBn 2.1 (Note 4)(Note 5)(Note 6) 2.3 0.5 IA 8 mA, VBn 1.6 1.65 0.5 IA 4 mA, VBn 1.15 : 2.0 5.5 V 3.15 0.0 mA t IIN t 50 mA, OE 5.5V VIKU Voltage Undershoot Rflat On Resistance Flatness 5.0 6.0 IA 30 mA, 0 d VBn d VCC (Note 4)(Note 5)(Note 7) 3.3 12.0 IA 24 mA, 0 d VBn d VCC 2.5 28.0 IA 8 mA, 0 d VBn d VCC 1.8 125 IA 4 mA, 0 d VBn d VCC : 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. 3 www.fairchildsemi.com NC7SBU3157 • FSAU3157 Absolute Maximum Ratings(Note 1) NC7SBU3157 • FSAU3157 DC Electrical Characteristics (Continued) 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 Parameter VCC (V) TA Min 25qC TA Typ Max 40qC to 85qC Min Propagation Delay Bus to Bus 2.3 2.7 1.2 1.2 (Note 10) 3.0 3.6 0.8 0.8 4.5 5.5 7.0 23.0 Turn on Time 2.3 2.7 3.5 (A to Bn) 3.0 3.6 2.5 tPZH 14.0 2.5 7.6 5.2 1.7 5.7 12.5 3.0 13.0 Turn Off Time 2.3 2.7 2.0 7.0 2.0 7.5 (A Port to B Port) 3.0 3.6 1.5 5.0 1.5 5.3 0.8 3.5 0.8 3.8 Break Before Make Time 1.65 1.95 (Note 9) Xtalk 3.5 6.9 1.7 4.5 5.5 OIRR 13.0 3.0 tPHZ Q 24.0 4.5 5.5 Output Disable Time Charge Injection (Note 9) Off Isolation (Note 11) Crosstalk BW 3dB Bandwidth THD Total Harmonic Distortion (Note 9) Number 0.5 0.5 2.3 2.7 0.5 0.5 3.0 3.6 0.5 0.5 4.5 5.5 0.5 VI OPEN VI 2 x VCC for tPZL VI 0V for tPZH VI 2 x VCC for tPLZ VI 0V for tPHZ Figures 2, 3 ns ns Figures 2, 3 Figures 2, 3 ns Figure 4 0.5 5.0 7.0 3.3 3.0 1.65 5.5 57.0 1.65 5.5 ns 0.3 7.0 1.65 1.95 tPLZ tB-M 0.3 1.65 1.95 Output Enable Time Figure Conditions 1.65 1.95 tPHL tPLH tPZL Units Max pC dB 54.0 dB 1.65 5.5 250 MHz 5 0.011 % CL 0.1 nF, VGEN RGEN RL f RL f 0: 50: 10MHz 50: 10MHz RL 50: RL 600 : 0V Figure 5 Figure 6 Figure 7 Figure 10 0.5 VP-P f 20 Hz to 20 KHz 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 www.fairchildsemi.com 20 log10 [VA / VBn] 4 Symbol (Note 12) Parameter Typ Max Units Figure Conditions CIN Control Pin Input Capacitance 2.3 pF CIO-B B Port Off Capacitance 6.5 pF VCC 5.0V Figure 8 CIOA-ON A Port Capacitance When Switch Is Enabled 18.5 pF VCC 5.0V Figure 9 25qC, f Note 12: TA VCC Number 0V 1 MHz, Capacitance is characterized but not tested in production. Undershoot Characteristic (Note 13) Symbol Parameter VOUTU Output Voltage During Undershoot Min Typ 2.5 VOH - 0.3 Max Units Conditions V Figure 1 Note 13: This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage undershoot event. FIGURE 1. Device Test Conditions Parameter Value VIN see Waveform V 100K : VTRI 7.0 V VCC 5.5 V R1 R2 Transient Input Voltage (VIN) Waveform Units 5 www.fairchildsemi.com NC7SBU3157 • FSAU3157 Capacitance NC7SBU3157 • FSAU3157 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 2. AC Test Circuit FIGURE 3. AC Waveforms FIGURE 4. Break Before Make Interval Timing www.fairchildsemi.com 6 NC7SBU3157 • FSAU3157 AC Loading and Waveforms (Continued) FIGURE 5. Charge Injection Test FIGURE 6. Off Isolation FIGURE 7. Crosstalk FIGURE 8. Channel Off Capacitance FIGURE 9. Channel On Capacitance FIGURE 10. Bandwidth 7 www.fairchildsemi.com NC7SBU3157 • FSAU3157 Tape and Reel Specification TAPE FORMAT Package Designator P6X Tape Section Number Cavities Cavity Status Cover Tape Status Leader (Start End) 125 (typ) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed TAPE DIMENSIONS inches (millimeters) Package SC70-6 www.fairchildsemi.com Tape Size 8 mm DIM A DIM B DIM F 0.093 0.096 0.138 r 0.004 (2.35) (2.45) (3.5 r 0.10) 8 DIM Ko 0.053 r 0.004 (1.35 r 0.10) DIM P1 DIM W 0.157 0.315 r 0.004 (4) (8 r 0.1) NC7SBU3157 • FSAU3157 REEL DIMENSIONS inches (millimeters) Tape Size 8 mm A B C D N 7.0 0.059 0.512 0.795 2.165 (177.8) (1.50) (13.00) (20.20) (55.00) 9 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) www.fairchildsemi.com NC7SBU3157 • FSAU3157 Physical Dimensions inches (millimeters) unless otherwise noted 6-Lead SC70, EIAJ SC88, 1.25mm Wide Package Number MAA06A www.fairchildsemi.com 10 FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 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 FAIRCHILD SEMICONDUCTOR CORPORATION As used herein: provided in the labeling, can be reasonably expected to result in significant injury to the user. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or 2. A critical component is any component of a life support (b) support or sustain life, or (c) whose failure to perform device or system whose failure to perform can be reasonwhen properly used in accordance with instructions for use ably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. PRODUCT STATUS DEFINITIONS Definition of terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. 11 www.fairchildsemi.com NC7SBU3157 • FSAU3157 Low Voltage SPDT Analog Switch with 2V Undershoot Protection DISCLAIMER