Revised January 2003 NC7SBU3157 • FSAU3157 TinyLogic Low Voltage UHS SPDT Analog Switch with −2V Undershoot Protection General Description Features The NC7SBU3157 or FSAU3157 is a high performance, single-pole/double-throw (SPDT) Analog Switch or 2:1 Multiplexer/Demultiplexer Bus Switch 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. ■ Useful in both analog and digital applications ■ Space saving SC70 6-lead surface mount package ■ Low On Resistance: < 10Ω on typ @ 3.3V VCC ■ Broad VCC operating range: 1.65V to 5.5V ■ Rail-to-Rail signal handling ■ Power down high impedance control input ■ Overvoltage tolerance of control input to 7.0V ■ Break before make enable circuitry ■ 250 MHz - 3dB bandwidth 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 Code: Order Number Package Number Product Code Top Mark Package Description Supplied As NC7SBU3157P6X MAA06A U7A 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 3k Units on Tape and Reel TinyLogic is a registered trademark and UHC is a trademark of Fairchild Semiconductor Corporation. © 2003 Fairchild Semiconductor Corporation DS500618 www.fairchildsemi.com NC7SBU3157 • FSAU3157 TinyLogic Low Voltage UHS SPDT Analog Switch with −2V Undershoot Protection April 2002 NC7SBU3157 • FSAU3157 Logic Symbol Connection Diagrams Analog Symbol (Top View) 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). Function Table Pin Descriptions 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 www.fairchildsemi.com L = LOW Logic Level 2 Description Recommended Operating Conditions (Note 3) −0.5V to +7.0V Supply Voltage (VCC) −0.5V to VCC +0.5V DC Switch Voltage (VS) (Note 2) Supply Voltage Operating (VCC) −0.5V to +7.0V DC Input Voltage (VIN) (Note 2) DC Input Diode Current (IIK) @ (IIK) VIN < 0V DC Output Current (IOUT) Storage Temperature Range (TSTG) 0V to VCC Switch Input Voltage (VIN) 0V to VCC −50 mA Output Voltage (VOUT) 128 mA Operating Temperature (TA) ±100 mA DC VCC or Ground Current (ICC/IGND) 1.65V to 5.5V Control Input Voltage (VIN ) 0V to VCC −40°C to +85°C Input Rise and Fall Time (tr, tf) −65°C to +150 °C Control Input VCC = 2.3V - 3.6V 0 ns/V to 10 ns/V 150 °C Control Input VCC = 4.5V - 5.5V 0 ns/V to 5 ns/V Junction Temperature under Bias (TJ) Thermal Resistance (θJA) Junction Lead Temperature (TL) 260°C (Soldering, 10 seconds) Power Dissipation (PD) @ +85°C 350°C/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 Parameter (V) VIH HIGH Level Input Voltage 2.3 − 5.5 IIN Input Leakage Current IOZ OFF State Leakage Current 1.65 − 5.5 RON Switch On Resistance 0 − 5.5 4.5 1.65 All Channels ON or OFF Analog Signal Range VIKU Conditions V 0.7 VCC 0.25 VCC V 0.3 VCC 0.3 VCC ±0.05 ±0.1 ±1 µA ±0.05 ±0.1 ±1 µA 0 ≤ A, B ≤ VCC 3 15 15 Ω VIN = 0V, IO = 30 mA VIN = 2.4V, IO = −30 mA 0 ≤ VIN ≤ 5.5V 5 15 15 Ω 7 15 15 Ω VIN = 4.5V, IO = −30 mA 4 20 20 Ω VIN = 0V, IO = 24 mA 10 20 20 Ω VIN = 3V, IO = −24 mA 5 30 30 Ω VIN = 0V, IO = 8 mA 13 30 30 Ω VIN = 2.3V, IO = −8 mA 6.5 50 50 Ω VIN = 0V, IO = 4 mA 17 50 50 Ω VIN = 1.65V, IO = −4 mA 1 10 µA VCC V 0 VCC 0 VIN = VCC or GND IOUT = 0 4.5 25 IA = −30 mA, 0 ≤ VBn ≤ VCC Over Signal Range 3.0 50 IA = −24 mA, 0 ≤ VBn ≤ VCC (Note 4)(Note 8) 2.3 100 1.65 300 RRANGE On Resistance ∆RON Units Max 0.25 VCC 5.5 VCC Min 0.75 VCC 2.3 − 5.5 2.3 Quiescent Supply Current Max 0.7 VCC 3.0 ICC TA = −40°C to +85°C Typ 1.65 − 1.95 LOW Level (Note 4) Min 1.65 − 1.95 0.75 VCC VIL Input Voltage TA = +25°C VCC On Resistance Match 4.5 0.15 Between Channels 3.0 0.2 (Note 4)(Note 5)(Note 6) 2.3 0.5 1.65 0.5 Voltage Undershoot Ω IA = −8 mA, 0 ≤ VBn ≤ VCC IA = −4 mA, 0 ≤ VBn ≤ VCC IA = −30 mA, VBn = 3.15 Ω IA = −24 mA, VBn 2.1 IA = −8 mA, VBn = 1.6 IA = −4 mA, VBn = 1.15 −2.0 5.5 3 V 0.0 mA ≥ IIN ≥ −50 mA, OE 5.5V www.fairchildsemi.com NC7SBU3157 • FSAU3157 Absolute Maximum Ratings(Note 1) NC7SBU3157 • FSAU3157 DC Electrical Characteristics Symbol TA = +25°C VCC Parameter (V) Rflat (Continued) Min TA = −40°C to +85°C Typ On Resistance Flatness 5.0 6 (Note 4)(Note 5)(Note 7) 3.3 12 2.5 28 1.8 125 Max Min Units Conditions Max IA = −30 mA, 0 ≤ VBn ≤ VCC Ω IA = −24 mA, 0 ≤ VBn ≤ VCC IA = −8 mA, 0 ≤ VBn ≤ VCC IA = −4 mA, 0 ≤ VBn ≤ 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. 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 TA = +25°C VCC Parameter (V) Min Typ TA = −40°C to +85°C Max Min Max Propagation Delay tPLH 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 23 7 24 Turn on Time 2.3 − 2.7 3.5 13 3.5 14 (A to Bn) 3.0 − 3.6 2.5 6.9 2.5 7.6 5.7 4.5 − 5.5 1.7 5.2 1.7 1.65 − 1.95 3 12.5 3 13 Turn Off Time 2.3 − 2.7 2 7 2 7.5 (A Port to B Port) 3.0 − 3.6 1.5 5 1.5 5.3 4.5 − 5.5 0.8 3.5 0.8 3.8 tPLZ Output Disable Time tPHZ Break Before Make Time 1.65 − 1.95 (Note 9) Q OIRR Xtalk Crosstalk BW −3dB Bandwidth THD Total Harmonic Distortion 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 0.5 Charge Injection (Note 9) Off Isolation (Note 11) Figure Number 5.0 7 3.3 3 1.65 − 5.5 −57 1.65 − 5.5 ns ns ns dB dB 1.65 − 5.5 250 MHz 5 0.011 % (Note 9) VI = 2 x VCC for tPZL VI = 0V for tPZH VI = 2 x VCC for tPLZ VI = 0V for tPHZ ns pC −54 VI = OPEN Figures 2, 3 0.3 7 tPZH tB-M 0.3 1.65 − 1.95 Output Enable Time Conditions 1.65 − 1.95 tPHL tPZL Units Figures 2, 3 Figures 2, 3 Figure 4 CL = 0.1 nF, VGEN = 0V RGEN = 0Ω RL = 50Ω f = 10MHz RL = 50Ω f = 10MHz RL = 50Ω Figure 5 Figure 6 Figure 7 Figure 10 RL = 600 Ω 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 = 20 log10 [VA / VBn] www.fairchildsemi.com 4 Symbol (Note 12) Parameter Typ Max Units Figure Conditions Number CIN Control Pin Input Capacitance 2.3 pF VCC = 0V 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 Note 12: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested in production. Undershoot Characteristic (Note 13) Symbol VOUTU Parameter 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 R1 = R2 100K Ω VTRI 7.0 V VCC 5.5 V Transient Input Voltage (VIN) Waveform Units 5 www.fairchildsemi.com NC7SBU3157 • FSAU3157 Capacitance NC7SBU3157 • FSAU3157 AC Loading and Waveforms Note: Input driven by 50Ω source terminated in 50Ω 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 Tape Number Cavity Section Cavities Status Status 125 (typ) Empty Sealed Leader (Start End) P6X Carrier Trailer (Hub End) Cover Tape 3000 Filled Sealed 75 (typ) Empty Sealed TAPE DIMENSIONS inches (millimeters) Package SC70-6 Tape Size 8 mm www.fairchildsemi.com DIM A DIM B 0.093 0.096 (2.35) (2.45) DIM F DIM Ko 0.138 ± 0.004 0.053 ± 0.004 (3.5 ± 0.10) 8 (1.35 ± 0.10) DIM P1 DIM W 0.157 0.315 ± 0.004 (4) (8 ± 0.1) NC7SBU3157 • FSAU3157 Tape and Reel Specification (Continued) REEL DIMENSIONS inches (millimeters) Tape Size 8 mm A B C D N W1 W2 W3 7.0 0.059 0.512 0.795 2.165 0.331 + 0.059/−0.000 0.567 W1 + 0.078/−0.039 (177.8) (1.50) (13.00) (20.20) (55.00) (8.40 + 1.50/−0.00) (14.40) (W1 + 2.00/−1.00) 9 www.fairchildsemi.com NC7SBU3157 • FSAU3157 TinyLogic Low Voltage UHS SPDT Analog Switch with −2V Undershoot Protection 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: 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. 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 www.fairchildsemi.com 10