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| DG3157A, DG3157B Vishay Siliconix Low Voltage, 300-MHz - 3 dB Bandwidth, SPDT Analog Switch with Power Down Protection (2:1 Multiplexer/Demultiplexer Bus Switch) DESCRIPTION The DG3157A, DG3157B are high-speed single-pole double-throw, low voltage switch. Using sub-micro CMOS technology, the DG3157A, DG3157B achieves low onresistance and negligible propagation delay. The DG3157A, DG3157B can handle both analog and digital signals and permits signals with amplitudes of up to VCC to be transmitted in either direction. Select pin of control logic input can be over the V+. When the select pin is low, B0 is connected to the output A pin. When the select pin is high, B1 is connected to the output A pin. The path that is open will have a high-impedance state with respect to the output A pin. Break before make is guaranteed. The DG3157A has an internal pull down resistor on the control pin S, while the DG3157B does not. FEATURES * Ultra small miniQFN6 package of 1 mm x 1.2 mm * Wide operation voltage range: 1.8 V to 5.5 V * Useful in both analog and digital signal switching * 300 MHz - 3 dB bandwidth * Power down safe design * Low voltage logic threshold: Vth(high) = 1.2 V at V+ = 3.3 V * Minimal propagation delay * Break-before-make switching * Zero bounce in flow-through mode * > 300 mA latch up current per JESD78 * > 8 kV ESD/HBM * DG3157A version has internal pull down resistor on control pin S Pb-free Available RoHS* COMPLIANT FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION miniQFN-6 DG3157A TRUTH TABLE B1 1 6 S Logic Input (S) 0 Function B0 Connected to A B1 Connected to A GND 2 5 V+ 1 B0 3 4 A ORDERING INFORMATION Temp. Range - 40 C to 85 C Package miniQFN-6 Part Number DG3157ADN-T1-E4 DG3157BDN-T1-E4 Top View Device Marking: E miniQFN-6 DG3157B B1 1 6 S GND 2 5 V+ B0 3 Top View 4 A Device Marking: D * Pb containing terminations are not RoHS compliant, exemptions may apply. Document Number: 68628 S-81944-Rev. C, 25-Aug-08 www.vishay.com 1 DG3157A, DG3157B Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Parameter Reference V+ to GND S, A, Ba Continuous Current (Any terminal) Peak Current (Pulsed at 1 ms, 10 % duty cycle) Storage Temperature Power Dissipation (Packages)b D-Suffix miniQFN-6c Limit - 0.3 to + 6 - 0.3 to (V+ + 0.3) 50 200 - 65 to 150 160 Unit V mA C mW Notes: a. Signals on A, or B or S exceeding V+ will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads welded or soldered to PC board. c. Derate 2.0 mW/C above 70 C. SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter DC Characteristics Symbol V+ = 3.0 V, VSL = 0.5 V, VSH = 2.0 Ve V+ = 1.65 to 1.95 V High Level Input Voltage VSH V+ = 2.0 to 2.6 V V+ = 2.7 to 3.6 V V+ = 4.5 to 5.5 V V+ = 1.65 to 1.95 V Low Level Input Voltage VSL V+ = 2.0 to 2.6 V V+ = 2.7 to 3.6 V V+ = 4.5 to 5.5 V VBN = 0 V, IA = 30 mA V+ = 4.5 V VBN = 2.4 V, IA = - 30 mA VBN = 4.5 V, IA = - 30 mA On-Resistance RON V+ = 3.0 V V+ = 2.3 V V+ = 1.65 V VBN = 0 V, IA = 24 mA VBN = 3.0 V, IA = - 24 mA VBN = 0 V, IA = 8 mA VBN = 2.3 V, IA = - 8 mA VBN = 0 V, IA = 4 mA VBN = 1.65 V, IA = - 4 mA V+ = 4.5 V, IA = - 30 mA On-Resistance Flatness RFLAT 0 < VBN < V+ V+ = 3.0 V, IA = - 24 mA V+ = 2.3 V, IA = - 8 mA V+ = 1.65 V, IA = - 4 mA V+ = 4.5 V, VBN = 3.15 V, IA = - 30 mA On-Resistance Matching Between Channels RON V+ = 3.0 V, VBN = 2.1 V, IA = - 24 mA V+ = 2.3 V, VBN = 1.6 V, IA = - 8 mA V+ = 1.65 V, VBN = 1.15 V, IA = - 4 mA Input Leakage Current IS IBN(off) IBN(on) V+ = 5.5 V, VA = 5.5 V, VS = 0.8 V, 2.4 V DG3157B Full DG3157A Room Full Room Full - 1.0 - 0.1 - 1.0 - 0.1 - 1.0 2.5 7.0 0.1 1.0 0.1 1.0 A - 1.0 Room Full 4.8 5.7 10.3 5.9 13.7 7 16.2 9.2 24 8 13 24 89 0.8 0.1 0.2 0.9 1.0 Full Temp.a Limits - 40 C to 85 C Min.b 1.2 1.4 2.0 2.4 0.3 0.4 0.5 0.8 7 12 15 9 20 12 30 20 50 V Typ.c Max.b Unit Off Stage Switch Leakage On State Switch Leakage V+ = 5.5 V, VA/VB = 0 V/5.5 V V+ = 5.5 V, VA/VB = 0 V/5.5 V www.vishay.com 2 Document Number: 68628 S-81944-Rev. C, 25-Aug-08 DG3157A, DG3157B Vishay Siliconix SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter Power Supply Power Supply Range Quiescent Supply Current AC Electrical Characteristice V+ = 1.65 to 1.95 V Prop Delay Timef tPHL/tPLH VA = 0 V V+ = 2.3 to 2.7 V V+ = 3.0 to 3.6 V V+ = 4.5 to 5.5 V V+ = 1.65 to 1.95 V VLOAD = 2 x V+ for tPZL VLOAD = 0 V for tPZH V+ = 2.3 to 2.7 V V+ = 3.0 to 3.6 V V+ = 4.5 to 5.5 V V+ = 1.65 to 1.95 V VLOAD = 2 x V+ for tPLZ VLOAD = 0 V for tPHZ V+ = 2.3 to 2.7 V V+ = 3.0 to 3.6 V V+ = 4.5 to 5.5 V V+ = 1.65 to 1.95 V Break-Before-Make Timed tBBM V+ = 2.3 to 2.7 V V+ = 3.0 to 3.65 V+ = 4.5 to 5.5 V CL = 1 nF, VGEN = 0 V V+ = 5 V RGEN = 0 V+ = 3.3 V RL = 50 , f = 10 MHz RL = 50 RL = 600 , 0.5 Vp-p f = 600 Hz - 20 kHz V+ = 0 V V+ = 5 V Full Full Full Full Room Full Room Full Room Full Room Full Room Full Room Full Room Full Room Full Full Full Full Full Room Room Room Room Room Room Room Room Room 1.5 0.8 0.4 0.3 27 15 10 7 16 10 8 6 0.5 0.5 0.5 0.5 11 6 4 3 7 5 - 57 - 64 300 0.016 3.7 7 19 pF pC dB MHz % 50 45 30 25 45 40 35 21 ns Symbol V+ I+ V+ = 5.5 V, VA = V+ or GND V+ = 3.0 V, VSL = 0.5 V, VSH = 2.0 Ve Temp.a Full Room Full Limits - 40 C to 85 C Min.b 1.65 Typ.c Max.b 5.5 1 10 Unit V A Output Enable Time f tPZL/tPZH Output Disable Timef tPLZ/tPHZ Charge Injectiond Off Isolationd Crosstalk d Q OIRR XTALK BW THD CS CIO-B CIO-A(on) - 3 dB Bandwidthd Total Harmonic Distortiond Capacitance Control Pin Capacitanced B Port Off Capacitance A Port Capacitance When d Switch Enabled Notes: a. Room = 25 C, Full = as determined by the operating suffix. b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. c. Typical values are for design aid only, not guaranteed nor subject to production testing. d. Guarantee by design, nor subjected to production test. e. VS = input voltage to perform proper function. f. Guaranteed by design and not production tested. The bus switch propagation delay is a function of the RC time constant contributed by the on-resistance and the specified load capacitance with an ideal voltage source (zero output impedance) driving the switch. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Document Number: 68628 S-81944-Rev. C, 25-Aug-08 www.vishay.com 3 DG3157A, DG3157B Vishay Siliconix LOGIC DIAGRAM Positive Logic B1 1 S 6 4 A B0 3 Figure 1. AC LOADING AND WAVEFORMS VLD RL 500 From Output Under Test CL 50 pF RL 500 SW Open GND TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH SW Open VLD GND Load Circuit Figure 2. AC Test Circuit tf = 2.5 ns tr = 2.5 ns 90 % Switch Input 10 % tw tPLH tPHL VOH 50 % 50 % Output Waveform 1 SW at V LD tPZH VOL Output Waveform 2 SW at GND 50 % 50 % 50 % 90 % 50 % 10 % tf = 2.5 ns V+ Logic Input 90 % 50 % 10 % GND tPZL 10 % tr = 2.5 ns 90 % 50 % GND tPLZ VLD 2 V+ VOL + 0.3 V VOL tPHZ VOH VOH 0.3 V Output 0V Propagation Delay T imes Enable and Disable T ime-Low- and High-Level Enabling Figure 3. AC Waveforms Notes: * CL includes probe and jig capacitance. * Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. * Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. * All input pulses are supplied by generators having the following characteristics: Input PRR = 1.0 MHz, tw = 500 ns. * The outputs are measured one at a time with one transition per measurement. * VLD = 2 V+. www.vishay.com 4 Document Number: 68628 S-81944-Rev. C, 25-Aug-08 DG3157A, DG3157B Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted 100 90 80 R ON - On-Resistance () 70 60 50 40 30 20 10 0 0 1 2 3 4 5 VA - Analog Voltage (V) 0.0 1 2 3 4 5 6 V+ - Supply Voltage (V) V+ = 4.5 V IB = + 30 mA V+ = 3.0 V IB = + 24 mA V+ = 1.65 V IB = + 4 mA T = 25 C V+ = 2.3 V IB = + 8 mA 2.0 V T - Switching Threshold (V) 1.5 1.0 0.5 RON vs. VA and Supply Voltage Switching Threshold vs. Supply Voltage 10 0 - 10 Loss, OIRR, XTALK (dB) - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90 - 100 100k 1M 10 M Frequency (Hz) 100 M 1G OIRR XTALK V+ = 3.0 V R L = 50 Loss Insertion Loss, Off-Isolation, Crosstalk vs. Frequency Document Number: 68628 S-81944-Rev. C, 25-Aug-08 www.vishay.com 5 DG3157A, DG3157B Vishay Siliconix TEST CIRCUITS V+ Logic Input A VO RL 50 CL 35 pF VSH VSL tr < 5 ns tf < 5 ns V+ B1 B0 B1 B0 VB = VB 0 1 VO 90 % S GND Switch 0V Output tD tD CL (includes fixture and stray capacitance) Figure 4. Break-Before-Make Interval V+ Rgen + Vgen VS = 0 - V+ V+ B0 or B1 S GND A VA VOUT CL = 1 nF S On OUT Off Q= x CL On OUT IN depends on switch configuration: input polarity determined by sense of switch. Figure 5. Charge Injection V+ 10 nF 10 nF V+ V+ B0 or B1 S A 0 V, 2.4 V S 0 V, 2.4 V V+ A Meter HP4192A Impedance Analyzer or Equivalent f = 1 MHz B0 or B1 RL GND GND Analyzer VA Off Isolation = 20 log V B /B 0 1 Figure 6. Off-Isolation Figure 7. Channel Off/On Capacitance Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see http://www.vishay.com/ppg?68628. www.vishay.com 6 Document Number: 68628 S-81944-Rev. C, 25-Aug-08 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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