UM3257 Low-Voltage Dual SPDT Analog Switch UM3257 DFN12 3.0×1.6 General Description The UM3257 is dual SPDT analog switch fabricated with silicon gate CMOS technology. It achieves very low propagation delay and RDS(ON) resistances while maintaining CMOS low power dissipation. These make it ideal for portable and battery power applications. The switch conducts signals within power rails equally well in both directions when on, and blocks up to the power supply level when off. Break-before-make is guaranteed. The select pin has over-voltage protection that allows voltages above VCC, up to 6.5V to be present on the pin without damage or disruption of operation of the part, regardless of the operating voltage. The UM3257 can maintain low power consumption for rail-to-rail signaling as long as the control signal input is held at a level that is greater than VIH minimum and less than VIL maximum by improving the control circuitry input buffer. so the part can be used in mixed voltage rail environments, especially services the mobile handset applications very well allowing for the direct interface with baseband processor general purpose I/Os, and it is no longer necessary to have the control input equal to VCC to maintain low power consumption The UM3257 is in a 12-pin, ROHS compliant, DFN12 package. It measures 3.0×1.6mm. The leads are spaced at a pitch of 0.5mm and are finished with lead free Ni-Pd. The small package makes it ideal for use in portable electronics such as cell phones, digital cameras and PDAs. Applications Features Sample-and-Hold Circuits Battery-Powered Equipment Audio and Video Signal Routing Communication Circuits Pin Configurations Lower ICC when the S Input is within the Required VIH and VIL Bounds Low ON-State Resistance (10Ω) Control Inputs are 5V Tolerant Low Charge Injection Excellent ON-State Resistance Matching Low Total Harmonic Distortion (THD) 1.65V to 5.5V Single-Supply Operation ESD Performance: Human Body Model＞2kV Machine Model＞200V DFN12 Package Pb-Free Package Top View XX: Week Code UM3257 DFN12 3.0×1.6 ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 1/10 UM3257 Ordering Information Part Number Packaging Type Marking Code UM3257 DFN12 3.0×1.6 3257 Shipping Qty 3000pcs/7 Inch Tape & Reel Function Table Select Input L H Function B0 Connected to A B1 Connected to A Absolute Maximum Ratings Symbol Parameter Limit VCC Supply Voltage - 0.5 to + 6.5 VIS DC Switch Input Voltage (Note 1) - 0.5 to (VCC + 0.5) VIN DC IN Voltage (Note 1) - 0.5 to + 6.5 IIK -50 DC Input Diode Current@ VIN＜0V IOUT DC Output Current 128 ICC/ IGND DC VCC or Ground Current +100 TJ Junction Temperature Under Bias +150 TSTG Storage Temperature - 65 to +150 TL Junction Lead Temperature (Soldering, 10seconds) 260 θJA Thermal Resistance 350 PD Power Dissipation @ +85°C 180 Note 1: The input and output negative voltage ratings may be exceeded if the input and diode current ratings are observed. Unit V mA °C °C/W mW output Recommended Ratings (Note2) Symbol VCC VIS VIN VOUT TA Parameter Supply Voltage Operating Switch Input Voltage Select Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time tr, tf Control Input Vcc=2.3V to 3.6V Control Input Vcc=4.5V to 5.5V Note 2: Select input must be held HIGH or LOW, it must not float. Limit 1.65 to 5.5 0 to VCC 0 to VCC 0 to VCC -55 to +125 Unit 0 to 10 0 to 5.0 ns/V V °C ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 2/10 UM3257 Electrical Characteristics Limits (–40 to 85 °C) Symbol Parameter Test Conditions Vcc(V) Temp Unit Min Typ Max DC Electrical Characteristics Analog Signal Range Vcc IIN Input Leakage Current 0≤VIN≤5.5V IOFF OFF State Leakage Current 0≤A, B≤Vcc VIH Input High Voltage VIL Input Low Voltage ICC Quiescent Supply Current RON RRANGE ΔRON RFLAT On-Resistance (Note3) On Resistance Over Signal Range (Note3,7) On Resistance Match Between Channels (Note3,4,5) On Resistance Flatness (Note3,4,6) 0 to 5.5 1.65 to 5.5 1.65 to 1.95 2.3 to 5.5 1.65 to 1.95 2.3 to 5.5 VIN =Vcc or GND IO=0 VIN = 0V, IO=30mA VIN = 2.4V, IO=-30mA VIN = 4.5V, IO=-30mA VIN = 0V, IO=24mA VIN = 3V, IO=-24mA VIN = 0V, IO=8mA VIN= 2.3V, IO=-8mA VIN = 0V, IO=4mA VIN = 1.65V, IO=-4mA IA=-30mA , 0≤VBn≤Vcc IA=-24mA, 0≤VBn≤Vcc 5.5 Full 0 Room Full Room Full Full ±0.05 ±0.05 Vcc V ±0.1 ±1 ±0.1 ±1 μA 0.75Vcc 0.7Vcc μA V Full Room Full 3.0 5.0 7.0 4.0 10 5.0 13 6.5 17 0.25Vcc 0.3Vcc 1.0 10 6.0 8.0 13 8.0 19 9.0 24 12 39 4.5 Full 3.0 Full 2.3 Full 1.65 Full 4.5 Full 25 3.0 Full 50 IA=-8mA, 0≤VBn≤Vcc 2.3 Full 100 IA=-4mA, 0≤VBn≤Vcc 1.65 Full 300 IA=-30mA, VBn = 3.15V 4.5 Room 0.15 IA=-24mA, VBn = 2.1V 3.0 Room 0.2 IA=-8mA, VBn = 1.6V 2.3 Room 0.5 IA=-4mA, VBn = 1.15V 1.65 Room 0.5 5.0 Room 5.0 3.3 Room 10 IA=-8mA, 0≤VBn≤Vcc 2.5 Room 24 IA=-4mA, 0≤VBn≤Vcc 1.8 Room 110 V μA Ω Ω Ω IA=-30mA, 0≤VBn≤Vcc IA=-24mA, 0≤VBn≤Vcc Ω Note 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). Note 4: Parameter is characterized but not tested in production. Note 5: ΔRON = ︱RON (A00Bn) − RON(A11Bn) ︱ measured at identical VCC, temperature and voltage levels. Note 6: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions. Note 7: Guaranteed by design. ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 3/10 UM3257 Electrical Characteristics (Continued) Limits (–40 to 85 °C) Symbol Parameter Test Conditions Vcc(V) Temp Unit Min Typ Max AC Electrical Characteristics tPHL tPLH Propagation Delay Bus to Bus (Note 9) VI = OPEN tPZL tPZH Output Enable Time Turn On Time (A to Bn) VI = 2×VCC for tPZL VI = 0 V for tPZH tPLZ tPHZ Output Disable Time Turn Off Time (A Port to B Port) VI = 2×VCC for tPLZ VI = 0 V for tPHZ tBBM Break Before Make Time (Note 8) RL=50Ω, CL =35pF QINJ Charge Injection (Note 8) CL = 0.1 nF, VGEN = 0 V RGEN = 0Ω 1.65 to1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 1.65 to1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 1.65 to1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 1.65 to1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 5.0 3.3 OIRR Off Isolation (Note 10) RL=50Ω, f = 10 MHz Xtalk Crosstalk BW THD 1.2 0.8 0.3 Room Full Full Full 7.0 3.5 2.5 1.7 3.0 2.0 1.5 0.8 0.5 0.5 0.5 0.5 ns 32 14 7.6 5.7 28 15 11 8 ns ns ns Room 7.0 3.0 pC 1.65 to 5.5 Room -55 dB RL=50Ω, f = 10 MHz 1.65 to 5.5 Room -54 dB -3 dB Bandwidth RL=50Ω 2.5 to 5.5 Room 250 MHz Total Harmonic Distortion (Note8) RL=600Ω 0.5VP-P f=600Hz to 20kHz 2.5 5.0 Room 0.0140 .004 % Capacitance IN Pin Input Capacitance VCC = 0V 2.3 pF (Note11) B Port Off Capacitance CIO-B VCC =5.0V 6.5 pF (Note11) A Port Capacitance when CIOA-ON Switch is Enabled VCC =5.0V 18.5 pF (Note11) Note 8: Guaranteed by design. Note 9: 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 35 pF load capacitance, when driven by an ideal voltage source (zero output impedance). Note 10: Off Isolation = 20 log10 [VA/VBn]. Note 11: TA = +25, f = 1 MHz, Capacitance is characterized but not tested in production. CIN ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 4/10 UM3257 Test Circuits/Timing Diagrams ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 5/10 UM3257 ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 6/10 UM3257 Typical Operating Characteristics Total Harmonic Distortion vs Frequency RON vs VIN vs Temperature @ VCC=4.5V RON vs VIN vs Temperature @ VCC=3.0V On-Resistance vs Input Voltage ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 7/10 UM3257 Typical Operating Characteristics (Continued) Bandwidth vs Frequency Off-Isolation vs Frequency Phase Angle vs Frequency ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 8/10 UM3257 Package Information UM3257 DFN12 3.0×1.6 Outline Drawing DIMENSIONS Symbol A A1 A2 b c D D1 E e L MILLIMETERS Min Max 0.700 0.800 0.000 0.050 0.153 0.253 0.180 0.300 0.300 0.500 2.900 3.100 2.400 2.600 1.550 1.675 0.450 0.550 0.150 0.350 INCHES Min Max 0.028 0.031 0.000 0.002 0.006 0.010 0.007 0.012 0.012 0.020 0.114 0.122 0.094 0.102 0.061 0.066 0.018 0.022 0.006 0.014 Land Pattern NOTES: 1. Compound dimension: 3.0×1.6; 2. Unit: mm; 3. General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 9/10 UM3257 IMPORTANT NOTICE The information in this document has been carefully reviewed and is believed to be accurate. Nonetheless, this document is subject to change without notice. Union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. Union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. Union Semiconductor, Inc Add: Unit 606, No.570 Shengxia Road, Shanghai 201210 Tel: 021-51093966 Fax: 021-51026018 Website: www.union-ic.com ________________________________________________________________________ http://www.union-ic.com Rev.02 Dec.2014 10/10