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| DG2747/DG2748/DG2749 Vishay Siliconix 0.4-, Low Voltage, Dual SPST Analog Switch DESCRIPTION The DG2747, DG2748, and DG2749 are high performance, low on-resistance analog switches of dual SPST configuration. Built on Vishay Siliconix's sub-micro CMOS technology, the DG2747/2748/2749 achieve switch on-resistance of 0.4 at 2.7 V V+ and 0.3 at 4.3 V V+. It provides 0.1 flatness at 2.7 V V+, and total harmonic distortion to 0.03 % (frequency range 20 Hz to 20 kHz). It achieves - 72 dB off-isolation and - 100 dB crosstalk at 100 kHz. Its - 3 dB bandwidth is up to 78 MHz. It can switch signals with amplitudes of up to VCC to be transmitted in either direction. The select pins of the control logic can tolerate voltages above V+. Logic high is 1.4 V to make it compatible with many low voltage digital control circuits. Combining wide operation voltage, low power, high speed, low on-resistance and small physical size, the DG2747/2748/ 2749 are ideal for portable and battery powered applications requiring high performance and efficient use of board space. The DG2747/2748/2749 come in a small miniQFN-8lead package (1.4 x 1.4 x 0.55 mm). As a committed partner to the community and the environment, Vishay Siliconix manufactures this product with the lead (Pb)-free device terminations and is 100 % RoHS compliant. FEATURES * Wide operation voltage range: 1.6 V to 4.3 V * Low on-resistance: 0.4 typ. at 2.7 V * Low voltage logic threshold: Vth(high) = 1.4 V at V+ = 3 V * - 100 dB crosstalk * > 250 mA latch up current per JESD78 * Switch exceeds 7 kV ESD/HBM RoHS COMPLIANT BENEFITS * * * * Ultra small miniQFN8 package of 1.4 x 1.4 x 0.55 mm High fidelity audio switch Reed relay replacement Low power consumption APPLICATIONS * * * * * Cellular phones Portable media player GPS PCMCIA cards Medical and test equipment FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION DG2747 miniQFN-8L V+ 8 IN1 COM1 1 7 IN2 Dx 2 6 COM2 NO2 Pin 1 Device Marking: Dx for DG2747 x = Date/Lot Traceability Code COM1 NC1 2 6 COM2 Pin 1 3 4 GND Top View 5 NC2 Device Marking: Ex for DG2748 x = Date/Lot Traceability Code (Top View) IN1 1 DG2748 miniQFN-8L V+ 8 7 IN2 Ex (Top View) NO1 3 4 GND Top View 5 DG2749 miniQFN-8L V+ 8 IN1 COM1 NC1 1 7 IN2 Fx 2 6 COM2 Pin 1 3 4 GND Top View 5 NC2 Device Marking: Fx for DG2749 x = Date/Lot Traceability Code (Top View) Document Number: 69977 S-80899-Rev. A, 21-Apr-08 www.vishay.com 1 DG2747/DG2748/DG2749 Vishay Siliconix TRUTH TABLE Logic Low High DG2747 COM1 and NO1 OFF ON COM2 and NO2 OFF ON DG2748 COM1 and NC1 ON OFF COM2 and NC2 ON OFF DG2749 COM1 and NC1 ON OFF COM2 and NO2 OFF ON ORDERING INFORMATION Temp. Range - 40 C to 85C Package miniQFN-8L Part Number DG2747DN-T1-E4 DG2748DN-T1-E4 DG2749DN-T1-E4 ABSOLUTE MAXIMUM RATINGS TA = 25 C, unless otherwise noted Parameter Reference to GND V+ IN, COM, NC, NOa Limit - 0.3 to 5.0 - 0.3 to (V+ + 0.3) 30 300 500 - 65 to 150 190 Unit V Current (Any terminal except NO, NC or COM) Continuous Current (NO, NC, or COM) mA Peak Current (Pulsed at 1 ms, 10 % duty cycle) Storage Temperature (D Suffix) C Power Dissipation (Packages)b miniQFN-8Lc mW Notes: a. Signals on NC, NO, or COM or IN 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 2.4 mW/C above 70 C. www.vishay.com 2 Document Number: 69977 S-80899-Rev. A, 21-Apr-08 DG2747/DG2748/DG2749 Vishay Siliconix SPECIFICATIONS V+ = 3 V Test Conditions Unless Otherwise Specified V+ = 3 V, 10 %,VIN = 0.4 V or 1.4 Ve RDS(on) V+ = 2.7 V, INO/NC = 100 mA, VCOM = 0.5 V On-Resistance RDS(on) V+ = 2.7 V, INO/NC = 100 mA, VCOM = 1.5 V V+ = 2.7 V, INO/NC = 100 mA, VCOM = 0.5 V V+ = 2.7 V, INO/NC = 100 mA, VCOM = 1.5 V RON Matchd RON Resistance Flatnessd RON RON flatness INO/NC(off) ICOM(off) ICOM(on) V+ = 2.7 V, INO/NC = 100 mA, VCOM = 0.5 V, 1.5 V V+ = 2.7 V, INO/NC = 100 mA, VCOM = 0.5 V, 1.5 V V+ = 4.3 V, VNO/NC = 1.0 V/3.3 V, VCOM = 3.3 V/1.0 V Limits - 40 to 85 C Temp.a Full Room Full Room Room Room Full Room Full V+ = 4.3 V, VNO/NC = VCOM = 3.3 V/1.0 V Room Full Full Full VIN = 0 or V+ Full Room V+ = 2.7 V to 3.6 V, VNO or VNC = 1.5 V, RL = 50 , CL = 35 pF CL = 1 nF, RGEN = 0 , VGEN = 0 V RL = 50 , CL = 5 pF, f = 1 MHz RL = 50 , CL = 5 pF, f = 100 kHz RL = 50 , CL = 5 pF, f = 1 MHz RL = 50 , CL = 5 pF, f = 100 kHz RL = 50 , CL = 5 pF CNX(off) CCOM(off) CCOM(on) THD f = 1 MHz, VNX = 0 V f = 1 MHz, VCOM = 0 V f = 1 MHz, VCOM = VNX = 0 V V+ = 2.7 V to 3.6 V, VIN = 0.5 Vp-p F = 20 Hz to 20 kHz Room Room Room Room Room Room Full Room Full Room 10 - 52 - 72 - 80 - 100 78 75 55 100 0.03 % pF MHz dB 12 -1 14 -2 - 10 -2 - 10 -2 - 10 1.4 0.4 1 25 27 25 27 pC ns 0.1 Min.b 0 0.4 Typ.c Max.b V+ 0.6 0.7 0.03 0.2 2 10 2 10 2 10 nA Unit V Parameter Analog Switch Analog Signal Ranged Symbol Vanalog Switch Off Leakage Current Channel-On Leakage Current Digital Control Input High Voltage Input Low Voltage Input Current Dynamic Characteristics Turn-On Timee Turn-Off Timee Charge Injectiond Off-Isolationd Crosstalkd 3 dB bandwidthd Source Off Capacitanced Drain Off Capacitanced Drain On Capacitance d VINH VINL IINL or IINH V A tON tOFF Q OIRR XTALK Total Harmonic Distortiond Power Supply Power Supply Range Power Supply Current V+ I+ VIN = 0 or V+ Full 1.6 4.3 1.0 V A 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, not subjected to production test. e. VIN = input voltage to perform proper function. 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: 69977 S-80899-Rev. A, 21-Apr-08 www.vishay.com 3 DG2747/DG2748/DG2749 Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted 1.4 1.2 R DS(on) - On-Resistance () 1.0 V+ = 2.7 V 0.8 V+ = 3 V 0.6 0.4 0.2 0 0 1 2 3 4 5 VCOM (VD) - Analog Voltage (V) V+ = 4.3 V V+ = 3.6 V V+ = 1.6 V TA = 25 C 0.5 RDS(on) - On-Resistance () 0.6 + 85 C V+ = 2.7 V 0.4 0.3 - 40 C + 25 C 0.2 0.1 0 0 0.5 1 1.5 2 2.5 3 VCOM (VD) - Analog Voltage (V) RDS(ON) vs. VD and Supply Voltage 100 V+ = 4.3 V I+ - Supply Current (nA) 10000 RDS(ON) vs. VD and Temperature ICOM(off) Leakage Current (pA) 1000 INO(off) 10 1.0 100 0.1 10 ICOM(on) V+ = 4.3 V 0 - 40 - 20 0 20 40 60 80 100 1 - 40 - 20 0 20 40 60 80 100 Temperature (C) Temperature (C) Supply Current vs. Temperature 1500 1000 500 0 - 500 - 1000 - 1500 - 2000 - 2500 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 VCOM - Analog Voltage (V) V+ = 4.3 V I COM(off) I NO(off) 18 16 I COM(on) Q - Charge Injection (pC) Leakage Current vs. Temperature C L = 1 nF Drain 14 12 10 8 6 4 2 0 0 0.5 1 1.5 2 2.5 3 3.5 4 Analog Voltage (V) V+ = 3.6 V V+ = 2.7 V V+ = 3 V Leakage Current (pA) Leakage vs. Analog Voltage Charge Injection vs. Analog Voltage www.vishay.com 4 Document Number: 69977 S-80899-Rev. A, 21-Apr-08 DG2747/DG2748/DG2749 Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted 18 0 tON, t OFF - Switching Time (ns) 16 t OFF V+ = 3.6 V -1 V+ = 3 V R L = 50 -2 t ON V+ = 2.7 V t OFF V+ = 2.7 V 14 LOSS (dB) 12 -3 10 t ON V+ = 3.6 V -4 8 -5 6 - 40 - 20 0 20 40 60 80 -6 100k 1M 10M Frequency (Hz) 100M Temperature (C) Switching Time vs. Temperature 1.5 1.4 VT - Switching Threshold (V) Insertion Loss vs. Frequency 0 - 10 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 1.5 - 40 C to 85 C Loss, OIRR, X TALK (dB) - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90 - 100 - 110 V+ = + 3 V R L = 50 XTALK OIRR 2.0 2.5 3.0 3.5 4.0 4.5 100k 1M 10M Frequency (Hz) 100M V+ - Supply Voltage (V) Switching Threshold vs. Supply Voltage Off-Isolation and Crosstalk vs. Frequency Document Number: 69977 S-80899-Rev. A, 21-Apr-08 www.vishay.com 5 DG2747/DG2748/DG2749 Vishay Siliconix TEST CIRCUITS V+ Logic Input V+ Switch Input Logic Input NO or NC IN GND 0V CL (includes fixture and stray capacitance) VOUT = VCOM Logic "1" = Switch On Logic input waveforms inverted for switches that have the opposite logic sense. RL 50 CL 35 pF COM Switch Output VOUT 0.9 x V OUT Switch Output 0V tON tOFF VINH 50 % VINL tr < 5 ns tf < 5 ns (R L RL +R ON ) Figure 1. Switching Time V+ Logic Input VNO2 VNC1 NO2 IN2 NC 1 IN1 GND COM1 VO1 Switch Output RL2 50 RL1 50 CL1 35 pF CL2 35 pF Switch Output 0V VNC1 VO1 0V V+ COM2 VINH 50 % VINL VNO2 VO2 VO2 90 % 90 % tD tD CL (includes fixture and stray capacitance) Figure 2. Break-Before-Make (DG2749) VO V+ VO INX OFF VO CL 1 nF INX OFF ON Q = VO x CL OFF ON OFF Rg V+ NC or NO IN GND COM Vg VIN = 0 - V+ Figure 3. Charge Injection www.vishay.com 6 Document Number: 69977 S-80899-Rev. A, 21-Apr-08 DG2747/DG2748/DG2749 Vishay Siliconix TEST CIRCUITS V+ V+ NC or NO IN COM 0 V, V+ RL GND Analyzer VCOM Off Isolation = 20 log V NO / NC Figure 4. Off-Isolation V+ C V+ COM1 50 VS Rg = 50 0 V, V+ NO1 or NC1 IN1 NO2 or NC2 COM 2 VO RL 0 V, V+ IN2 GND XTALK Isolation = 20 log C = RF bypass VO VS Figure 5. Crosstalk V+ V+ COM Meter IN 0 V, V+ NC or NO GND HP4192A Impedance Analyzer or Equivalent f = 1 MHz Figure 6. 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?69977. Document Number: 69977 S-80899-Rev. A, 21-Apr-08 www.vishay.com 7 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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