NC7SBU3157, FSAU3157 Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch Features General Description ■ Analog and digital applications The NC7SBU3157 / FSAU3157 is a high-performance, single-pole / double-throw (SPDT) analog switch or 2:1 multiplexer / de-multiplexer bus switch. ■ Space-saving, SC70 6-lead, surface-mount package ■ Low on resistance: <10Ω on typical at 3.3V VCC ■ Broad VCC operating range: 1.65V to 5.5V ■ Rail-to-rail signal handling ■ Power-down, high-impedance control input ■ Over-voltage tolerance of control input to 7.0V ■ Break-before-make enable circuitry ■ 250 MHz, 3dB bandwidth The device is fabricated with advanced sub-micron CMOS technology to achieve high-speed enable and disable times and low on resistance. The break-beforemake 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. Ordering Information Part Number Top Mark Operating Temperature Range Package Description NC7SBU3157P6X B7A -40 to +85°C 6-Lead, SC70, EIAJ SC88, 1.25mm Wide Package 3000 Units Tape and Reel FSAU3157P6X B7A -40 to +85°C 6-Lead, SC70, EIAJ SC88, 1.25mm Wide Package 3000 Units Tape and Reel Packing Method All packages are lead free per JEDEC: J-STD-020B standard. MicroPak™ is a trademark of Fairchild Semiconductor Corporation. UHC® is a registered trademark of Fairchild Semiconductor Corporation. ©2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch April 2008 Connection Diagrams B1 S A B0 2. Pin Assignments SC70 Figure 1. Logic Symbol Analog Symbol B1 S VCC GND B0 A Figure 4. Pin One Orientation Figure 3. Analog Symbol Note: Orientation of top mark determines pin one location. Read the top mark left to right and pin one is the lower left pin (see Figure 4). Function Table Input (S) Function Logic Level Low B0 Connected to A Logic Level High B1 Connected to A Pin Descriptions Pin Names Description A, B0, B1 Data Ports S Control Input © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 2 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch Logic Symbol Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only Symbol VCC VS Parameter Min. Max. Units Supply Voltage –0.5 +7.0 V DC Switch Voltage(1) –0.5 VCC +0.5 V –0.5 +7.0 V (1) VIN DC Input Voltage IIK DC Input Diode Current at VIN < 0V DC Output Current –50 mA 128 mA DC VCC or Ground Current ±100 mA +150 °C °C IOUT ICC/IGND TSTG Storage Temperature Range –65 TJ Junction Temperature Under Bias +150 TL Junction Lead Temperature (Soldering, 10 seconds) +260 °C PD Power Dissipation at +85°C 180 mW Note: 1. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol VCC VIN VIN Parameter Min. Max Units 1.65 5.50 V Control Input Voltage(2) 0 VCC V Switch Input Voltage(2) V Supply Voltage Operating 0 VCC Voltage(2) 0 VCC V TA Operating Temperature –40 +85 °C tr, tf Input Rise and Fall Time Control Input VCC=2.3V–3.6V 0 10 ns/V Control Input VCC=4.5V–5.5V 0 5 ns/V θJA Thermal Resistance 350 °C/W VOUT Output Note: 2. Control input must be held HIGH or LOW; it must not float. © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 3 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch Absolute Maximum Ratings Symbol Parameter Conditions TA = –40°C to +85°C TA = +25°C VCC (V) Min. Typ. Max. Min. VIH High Level Input Voltage 1.65 to 1.95 0.75 VCC VIL Low Level Input Voltage 1.65 to 1.95 0.25 VCC 0.25 VCC 2.3 to 5.5 0.3 VCC 0.3 VCC IIN Input Leakage Current IOFF 2.3 to 5.5 0 ≤ VIN ≤ 5.5V ±0.1 ±1 µA 1.65 to 5.5 ±0.05 ±0.1 ±1 µA 4.5 3.0 15.0 15.0 VIN=2.4V, IO=–30mA 5.0 15.0 15.0 VIN=4.5V, IO=–30mA 7.0 15.0 15.0 4.0 20.0 20.0 10.0 20.0 20.0 VIN=0V, IO=24mA 3.0 VIN=3V, IO=–24mA VIN=0V, IO=8mA 2.3 VIN=2.3V, IO=–8mA VIN=0V, IO=4mA 1.65 VIN=1.65V, IO=–4mA ICC RRANGE ΔRON VIKU Rflat Quiescent Supply Current; V =V or GND IOUT=0 All Channels On or IN CC Off 5.5 Analog Signal Range VCC IA=–30mA, 0 ≤ VBn ≤ VCC On Resistance IA=–24mA, 0 ≤ VBn ≤ VCC Over Signal Range (3, 7) IA=–8mA, 0 ≤ VBn ≤ VCC On Resistance Match BetweenChannels(3, 4, 5) Voltage Undershoot On Resistance Flatness(3, 4, 6) V ±0.05 Off State Leakage 0 ≤ A, B ≤ VCC Current Switch On Resistance(3) V 0.7 VCC 0 to 5.5 VIN=0V, IO=30mA RON 0.75 VCC 0.7 VCC Units Max. 5.0 30.0 30.0 13.0 30.0 30.0 Ω 6.5 50.0 50.0 17.0 50.0 50.0 1 10 µA VCC V 0 VCC 0 4.5 25.0 3.0 50.0 2.3 100 IA=–4mA, 0 ≤ VBn ≤ VCC 1.65 300 IA=–30mA, VBn=3.15 4.5 0.15 IA=–24mA, VBn 2.1 3.0 0.2 IA=–8mA, VBn=1.6 2.3 0.5 IA=–4mA, VBn=1.15 1.65 0.5 0.0mA ≤ IIN ≤–50, OE 5.5v 5.5 IA=–30mA, 0 ≤ VBn ≤ VCC 5.0 6.0 IA=–24mA, 0 ≤ VBn ≤ VCC 3.3 12.0 IA=–8mA, 0 ≤ VBn ≤ VCC 2.5 28.0 IA=–4mA, 0 ≤ VBn ≤ VCC 1.8 125 Ω Ω –2 V Ω Notes: 3. 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). 4. Parameter is characterized, but not tested in production. 5. ΔRON = RON max – RON minimum measured at identical VCC, temperature, and voltage levels. 6. Flatness is defined as the difference between the maximum and minimum value of on resistance over the specified range of conditions. 7. Guaranteed by design. © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 4 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch DC Electrical Characteristics Symbol Parameter Conditions VCC (V) TA = –40°C to +85°C Units Figure Min. Typ. Max. Min. Max. TA = +25°C 1.65 to 1.95 tPHL, tPLH Propagation Delay Bus-to-Bus(8) VI = OPEN 2.3 to 2.7 1.2 1.2 3.0 to 3.6 0.8 0.8 4.5 to 5.5 tPZL, tPZH tPLZ, tPHZ tBBM Q OIRR Output Enable Time Turn-On Time (A to Bn) Output Disable Time Turn-Off Time (A Port to B Port) VI = 2 x VCC for tPZL VI = 0V for tPZH VI = 2 x VCC for tPLZ VI = 0V for tPHZ Break-Before-Make Time(9) Charge Injection(9) 0.3 Figure 7 Figure 8 ns Figure 7 Figure 8 ns Figure 7 Figure 8 ns Figure 9 pC Figure 10 dB Figure 11 dB Figure 12 0.3 1.65 to 1.95 7.0 23.0 7.0 24.0 2.3 to 2.7 3.5 13.0 3.5 14.0 3.0 to 3.6 2.5 6.9 2.5 7.6 4.5 to 5.5 1.7 5.2 1.7 5.7 1.65 to 1.95 3.0 12.5 3.0 13.0 2.3 to 2.7 2.0 7.0 2.0 7.5 3.0 to 3.6 1.5 5.0 1.5 5.3 3.5 0.8 3.8 4.5 to 5.5 0.8 1.65 to 1.95 0.5 0.5 2.3 to 2.7 0.5 0.5 3.0 to 3.6 0.5 0.5 4.5 to 5.5 0.5 0.5 CL = 0.1nF, VGEN = 0V, 5.0 7.0 RGEN = 0Ω 3.3 3.0 Off Isolation(10) RL = 50Ω, f = 10MHz 1.65 to 5.5 –57.0 Crosstalk RL = 50Ω, f = 10MHz 1.65 to 5.5 –54.0 BW –3dB Bandwidth RL = 50Ω 1.65 to 5.5 250 THD Total Harmonic Distortion(9) RL = 600Ω, 0.5VPP, f = 20Hz to 20KHz 5.0 .011 Xtalk ns MHz Figure 15 % Notes: 8. 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 50pF load capacitance, when driven by an ideal voltage source (zero output impedance). 9. Guaranteed by design. 10. Off Isolation = 20 log10 [VA / VBn]. Capacitance TA = +25°C, f = 1MHz. Capacitance is characterized, but not tested in production. Symbol CIN CIO-B CIOA-ON Parameter Conditions Control Pin Input Capacitance Typ. Max. Units Figure VCC = 0V 2.3 pF B Port Off Capacitance VCC = 5.0V 6.5 pF Figure 13 A Port Capacitance When Switch Is Enabled VCC = 5.0V 18.5 pF Figure 14 © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 5 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch AC Electrical Characteristics Symbol VOUTU Parameter Output Voltage During Undershoot Min. Typ. Units Figure 2.5 VOH - 0.3 V Figure 5 Note: 11. This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage undershoot event. Figure 5. Output Voltage During Undershoot Device Test Conditions Parameter Value Units VIN see Figure 6 V R1 = R2 100 KΩ VTRI 7.0 V VCC 5.5 V Transient Input Voltage (VIN) Waveform Figure 6. Transient Input Voltage Waveform © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 6 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch Undershoot Characteristic Notes: Input driven by 50Ω source terminated in 50Ω. CL includes load and stray capacitance. Input PRR=1.0MHz; tw = 500ns. Figure 7. AC Test Circuit tr = 2.5ns tr = 2.5ns 90% Switch Input 90% 50% Control Input tr = 2.5ns VCC tr = 2.5ns 50% 10% 10% tPZL GND Output tPHL 50% VOH Output 50% GND tPLZ VTRI 10% tW tPLH 50% 10% 50% VCC 90% 90% VOL tPHZ VOH tPZH 50% VOL Output VOL+0.3V 50% VOH–0.3V VTRI Figure 8. AC Waveforms Figure 9. Break-Before-Make Interval Timing © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 7 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch AC Loading and Waveforms RGEN A BN Logic Input VOUT OFF ON OFF VGE S RL 1MΩ CL 100pF ΔVOUT VOUT Logic Input Q = (ΔVOUT)(CL) Figure 10. Charge Injection Test 10nF 10nF 50Ω Signal Generator 0dBm VCC A Logic Input 0V or VIH S BN Analyzer 50Ω B0 VCC A 50Ω B1 S Analyzer GND 50Ω GND Figure 11. Off Isolation Figure 12. Crosstalk 10nF 10nF A Capacitance Meter f = 1MHz Capacitance Meter VCC S Logic Input 0V or VCC A VCC f = 1MHz S Logic Input 0V or VCC BN BN GND GND Figure 14. Channel On Capacitance Figure 13. Channel Off Capacitance 10nF Signal Generator 0dBm BN VCC A 50Ω S Logic Input 0V or VCC GND Figure 15. Bandwidth © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 8 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch AC Loading and Waveforms (continued) Figure 16. 6-Lead, SC70, EIAJ SC88, 1.25mm Wide Package Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ For SC70 Tape and Reel Specifications, please visit: http://www.fairchildsemi.com/products/analog/pdf/sc70-6_tr.pdf © 2005 Fairchild Semiconductor Corporation NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com 9 NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch Physical Dimensions NC7SBU3157, FSAU3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch 10 NC7SBU3157, FSAU3157 Rev. 1.0.4 www.fairchildsemi.com © 2005 Fairchild Semiconductor Corporation