Revised April 2005 FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A Low RON Low Voltage Dual SPST Analog Switch with Low ICCT "A" Option General Description Features The FSA1256, FSA1256A, FSA1257, FSA1257A, FSA1258, and FSA1258A are high performance dual Single Pole/Single Throw (SPST) analog switches. All devices feature ultra low RON of 1.1: maximum at 4.5V VCC. The FSA1256, FSA1257, and FSA1258 operate over a wide VCC range of 1.65V to 5.5V. The FSA1256A, FSA1257A, and FSA1258A operation range is 2.7V to 5.5V. These devices are fabricated with sub-micron CMOS technology to achieve fast switching speeds and are designed for break-before-make operation. The select input is TTL level compatible. The FSA1256 and FSA1256A feature two Normally Open (NO) switches. The FSA1257 and FSA1257A feature two Normally Closed (NC) switches. The FSA1258 and FSA1258A have one NO switch and one NC switch. FSA1256A, FSA1257A, FSA1258A feature low ICCT when S Input is lower than VCC Maximum 1.1: On Resistance (RON) for 4.5V supply 0.4: max RON flatness for 4.5V supply Space saving Pb-Free MicroPak packaging Broad VCC operating range: * FSA1256, FSA1257, FSA1258: 1.65V to 5.5V * FSA1256A, FSA1257A, FSA1258A: 2.7V to 5.5V Fast turn-on and turn-off time FSA1258, FSA1258A feature break-before-make enable circuitry Over-voltage tolerant TTL compatible control input Ordering Code: Product Order Package Code Number Number Top Mark Package Description Supplied As FSA1256L8X MAC08A EB Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel FSA1256AL8X MAC08A FN Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel FSA1257L8X MAC08A EC Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel FSA1257AL8X MAC08A FP Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel FSA1258L8X MAC08A ED Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel FSA1258AL8X MAC08A FS Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel Pb-Free package per JEDEC J-STD-020B. MicroPak is a trademark of Fairchild Semiconductor Corporation. (c) 2005 Fairchild Semiconductor Corporation DS500883 www.fairchildsemi.com FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A Low RON Low Voltage Dual SPST Analog Switch with Low ICCT "A" Option March 2004 FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A Analog Symbols FSA1256, FSA1256A FSA1257, FSA1257A (Top Through View) (Top Through View) Truth Tables FSA1256, FSA1256A H FSA1257, FSA1257A Control Input(s) Function Control Input(s) Function L Disconnect L A Connected to B H A Connected to B H Disconnect HIGH Logic Level L LOW Logic Level Analog Symbol FSA1258, FSA1258A (Top Through View) Truth Table FSA1258, FSA1258A Control Input 1S Function Control Input 2S Function L 1A Connected to 1B L Disconnect H Disconnect H 2A Connected to 2B H HIGH Logic Level L LOW Logic Level Pin Descriptions www.fairchildsemi.com Pin Names Function A, B Data Ports S Control Input 2 Recommended Operating Conditions 0.5V to 6.0V 0.5V to VCC 0.5V 0.5V to 6.0V 50 mA Supply Voltage (VCC) Switch Voltage (VS) (Note 2) Input Voltage (VIN) (Note 2) Input Diode Current Switch Current Supply Voltage (VCC) FSA1256, FSA1257, FSA1258 200 mA Peak Switch Current (Pulsed at 1 ms duration, 10% Duty Cycle) 1.65V to 5.5V FSA1256A, FSA1257A, FSA1258A 400 mA 2.7V to 5.5V Control Input Voltage (VIN) (Note 3) 0V to VCC Switch Input Voltage (VIN) 0V to VCC 40qC to 85qC Operating Temperature (TA) Power Dissipation @ 85qC Thermal Resistance (TJA) in still air MicroPak 8L package 180 mW Storage Temperature Range (TSTG) Maximum Junction Temperature (TJ) (modeled) Note 1: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Lead Temperature (TL) 260qC Soldering, 10 seconds ESD Human Body Model FSA1256, FSA1257, FSA1258 5.5kV FSA1256A, FSA1257A, FSA1258A 4.5kV 224qC/W MicroPak 8L package 65qC to 150qC 150qC Note 2: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 3: Unused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics (All typical values are @ 25qC unless otherwise specified) Symbol VIH VIL Parameter Input Voltage High Input Voltage Low VCC (V) TA Min 25qC Typ TA 40qC to 85qC Max Min 2.7 to 3.6 2.0 4.5 to 5.5 2.4 INO(OFF), Control Input Leakage OFF-Leakage Current INC(OFF) 0.4 2.7 to 3.6 0.6 RON 'RON Conditions FSA1256A, FSA1257A, FSA1258A Only V 0.8 2.7 to 3.6 1.0 1.0 4.5 to 5.5 1.0 1.0 20.0 20.0 5.5 Units V 2.7 to 3.6 4.5 to 5.5 IIN Max -2.0 2.0 Switch On Resistance 2.7 2.6 4.0 4.3 (Note 4) 4.5 0.95 1.15 1.3 4.5 0.06 0.12 0.15 PA nA : 0V to VCC VIN A 1V, 4.5V 1B or 2B 1V, 4.5V IOUT 100 mA, 1B or 2B 1.5V IOUT 100 mA, 1B or 2B 3.5V IOUT 100 mA, 1B or 2B 3.5V IOUT 100 mA, 1B or 2B 0V, 0.75V, 1.5V IOUT 100 mA, 1B or 2B 0V, 1V, 2V On Resistance Matching Between Channels : (Note 5) RFLAT(ON) On Resistance Flatness 2.7 1.4 (Note 6) 4.5 0.2 0.3 0.4 ICC Quiescent Supply Current 3.6 0.1 0.5 1.0 5.5 0.1 0.5 ICCT Increase in ICC per Input 4.3 0.2 1.0 10.0 : PA VIN PA One Input at 2.6V, Others at VCC or GND 0V or VCC, IOUT 0V (FSA1256A, FSA1257A, FSA1258A Only) Note 4: On Resistance is determined by the voltage drop between A and B pins at the indicated current through the switch. Note 5: 'RON RONmax RONmin measured at identical VCC, temperature, and voltage. Note 6: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions. 3 www.fairchildsemi.com FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A Absolute Maximum Ratings(Note 1) FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A AC Electrical Characteristics (All typical value are @ 25qC unless otherwise specified) Symbol tON tOFF tB-M Q OIRR Xtalk BW THD VCC Parameter TA TA 40qC to 85qC Max 2.7 to 3.6 15.0 50.0 60.0 4.5 to 5.5 10.0 35.0 40.0 2.7 to 3.6 8.0 20.0 30.0 4.5 to 5.5 4.0 15.0 20.0 Break-Before-Make 2.7 to 3.6 12.0 Time 4.5 to 5.5 7.0 Turn OFF Time Charge Injection OFF-Isolation Min 25qC Typ Turn ON Time (V) 2.7 to 3.6 10.0 4.5 to 5.5 20.0 2.7 to 3.6 70.0 4.5 to 5.5 70.0 2.7 to 3.6 100 4.5 to 5.5 100 2.7 to 3.6 300 4.5 to 5.5 300 Total Harmonic 2.7 to 3.6 0.002 Distortion 4.5 to 5.5 0.002 Crosstalk 3db Bandwidth Min Units Max ns ns ns pC Figure Conditions Number 1B or 2B 1.5V, RL 50:, CL 35 pF 1B or 2B 3.0V, RL 50:, CL 35 pF 1B or 2B 1.5V, RL 50:, CL 35 pF 1B or 2B 3.0V, RL 50:, CL 35 pF 1B or 2B 1.5V, RL 50:, CL 35 pF 1B or 2B 3.0V, RL 50:, CL 35 pF CL 1.0 nF, VGEN RGEN 0V, Figure 1 Figure 1 Figure 2 Figure 4 0: dB f 1MHz, RL 50: Figure 3 dB f 1MHz, RL 50: Figure 6 MHz % 50: RL 600:, VIN RL f Figure 7 0.5V P.P, Figure 8 20Hz to 20kHz Capacitance Symbol Parameter TA VCC (V) Min 25qC Typ TA Max 40qC to 85qC Min Units Conditions Max CIN Control Pin Input Capacitance 0.0 3.0 pF f 1MHz (see Figure 6) COFF B Port OFF Capacitance 4.5 11.5 pF f 1MHz (see Figure 6) CON A Port ON Capacitance 4.5 27.0 pF f 1MHz (see Figure 6) www.fairchildsemi.com 4 Logic Input Waveforms Inverted for Switches that have the Opposite Logic Sense CL includes Fixture and Stray Capacitance FIGURE 1. Turn-On/Turn-Off Timing FIGURE 2. Break-Before-Make Timing FIGURE 3. OFF Isolation 5 www.fairchildsemi.com FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A AC Loading and Waveforms FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A AC Loading and Waveforms (Continued) Q ('VOUT )(CL) FIGURE 4. Charge Injection FIGURE 5. Crosstalk FIGURE 6. ON/OFF Capacitance Measurement Setup www.fairchildsemi.com 6 FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A AC Loading and Waveforms (Continued) FIGURE 7. Bandwidth FIGURE 8. Harmonic Distortion 7 www.fairchildsemi.com FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A Tape and Reel Specification Tape Format For Micropak Package Tape Number Cavity Section Cavities Status Status Leader (Start End) 125 (typ) Empty Sealed Designator L8X Cover Tape Carrier 5000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed 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) www.fairchildsemi.com 8 Pb-Free 8-Lead MicroPak, 1.6 mm Wide Package Number MAC08A 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 9 www.fairchildsemi.com FSA1256 * FSA1256A * FSA1257 * FSA1257A * FSA1258 * FSA1258A Low RON Low Voltage Dual SPST Analog Switch with Low ICCT "A" Option Physical Dimensions inches (millimeters) unless otherwise noted