DG2747/DG2748/DG2749 Vishay Siliconix 0.4-Ω, Low Voltage, Dual SPST Analog Switch DESCRIPTION FEATURES The DG2747, DG2748, and DG2749 are high performance, low on-resistance analog switches of dual SPST configuration. • Wide operation voltage range: 1.6 V to 4.3 V • Low on-resistance: 0.4 Ω 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 Built on Vishay Siliconix's sub-micro CMOS technology, the DG2747/2748/2749 achieve switch on-resistance of 0.4 Ω at 2.7 V V+ and 0.3 Ω at 4.3 V V+. It provides 0.1 Ω 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. RoHS COMPLIANT BENEFITS • • • • 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. 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 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. Cellular phones Portable media player GPS PCMCIA cards Medical and test equipment FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION DG2747 miniQFN-8L DG2748 miniQFN-8L V+ V+ (Top View) 8 IN1 1 7 (Top View) 8 IN2 IN1 1 7 IN2 COM1 2 6 COM2 NC1 3 5 NC2 Dx COM1 NO1 2 6 COM2 3 5 NO2 Ex Pin 1 Device Marking: Dx for DG2747 x = Date/Lot Traceability Code Pin 1 4 4 GND GND Top View Top View Device Marking: Ex for DG2748 x = Date/Lot Traceability Code DG2749 miniQFN-8L V+ 8 (Top View) IN1 1 7 IN2 COM1 2 6 COM2 NC1 3 5 NC2 Fx Pin 1 4 Device Marking: Fx for DG2749 x = Date/Lot Traceability Code GND Top View Document Number: 69977 S-80899-Rev. A, 21-Apr-08 www.vishay.com 1 DG2747/DG2748/DG2749 Vishay Siliconix TRUTH TABLE DG2747 Logic DG2748 DG2749 COM1 and NO1 COM2 and NO2 COM1 and NC1 COM2 and NC2 COM1 and NC1 COM2 and NO2 Low OFF OFF ON ON ON OFF High ON ON OFF OFF OFF ON ORDERING INFORMATION Temp. Range Package Part Number - 40 °C to 85°C miniQFN-8L 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 Parameter Symbol Limits - 40 to 85 °C Test Conditions Unless Otherwise Specified V+ = 3 V, ± 10 %,VIN = 0.4 V or 1.4 Ve Temp.a Min.b RDS(on) Full 0 Typ.c Max.b Unit V+ V Analog Switch Analog Signal Ranged Vanalog 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 Channel-On Leakage Current 0.03 Ω Room RON flatness V+ = 2.7 V, INO/NC = 100 mA, VCOM = 0.5 V, 1.5 V Room ICOM(off) ICOM(on) V+ = 4.3 V, VNO/NC = VCOM = 3.3 V/1.0 V 0.6 0.7 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 0.4 Full ΔRON INO/NC(off) Switch Off Leakage Current Room 0.1 0.2 Room -2 2 Full - 10 10 Room -2 2 Full - 10 10 Room Full -2 2 - 10 10 1.4 nA Digital Control Input High Voltage VINH Full Input Low Voltage VINL Full IINL or IINH Input Current VIN = 0 or V+ Full V 0.4 -1 1 µA Dynamic Characteristics Turn-On Timee tON Turn-Off Timee tOFF Charge Injectiond Off-Isolationd Crosstalkd Q CL = 1 nF, RGEN = 0 Ω, VGEN = 0 V Room OIRR RL = 50 Ω, CL = 5 pF, f = 100 kHz 3 dB bandwidthd CNX(off) 14 Full Room XTALK Source Off Capacitanced Room V+ = 2.7 V to 3.6 V, VNO or VNC = 1.5 V, RL = 50 Ω, CL = 35 pF 12 Full pC - 52 - 72 Room dB - 80 RL = 50 Ω, CL = 5 pF, f = 100 kHz - 100 RL = 50 Ω, CL = 5 pF Room 78 f = 1 MHz, VNX = 0 V Room 75 CCOM(off) f = 1 MHz, VCOM = 0 V Room 55 d CCOM(on) f = 1 MHz, VCOM = VNX = 0 V Room 100 THD V+ = 2.7 V to 3.6 V, VIN = 0.5 Vp-p F = 20 Hz to 20 kHz Room 0.03 VIN = 0 or V+ Full Total Harmonic Distortiond ns 27 Drain Off Capacitanced Drain On Capacitance 25 10 RL = 50 Ω, CL = 5 pF, f = 1 MHz RL = 50 Ω, CL = 5 pF, f = 1 MHz 25 27 MHz pF % Power Supply Power Supply Range V+ Power Supply Current I+ 1.6 4.3 V 1.0 µA 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 0.6 0.5 RDS(on) - On-Resistance (Ω) R DS(on) - On-Resistance (Ω) V+ = 2.7 V + 85 °C TA = 25 °C V+ = 1.6 V 1.2 1.0 V+ = 2.7 V 0.8 V+ = 3.6 V V+ = 3 V 0.6 V+ = 4.3 V 0.4 0.4 0.3 + 25 °C - 40 °C 0.2 0.1 0.2 0 0 0 1 2 3 4 5 0 0.5 VCOM (VD) - Analog Voltage (V) 1 1.5 2 3 VCOM (VD) - Analog Voltage (V) RDS(ON) vs. VD and Supply Voltage RDS(ON) vs. VD and Temperature 10000 100 V+ = 4.3 V ICOM(off) 10 Leakage Current (pA) I+ - Supply Current (nA) 2.5 1.0 1000 INO(off) 100 10 0.1 V+ = 4.3 V ICOM(on) 0 - 40 - 20 0 20 40 60 80 1 - 40 100 0 20 40 60 80 Temperature (°C) Supply Current vs. Temperature Leakage Current vs. Temperature 100 18 1500 1000 I COM(on) 14 500 0 - 500 I COM(off) - 1000 C L = 1 nF Drain 16 I NO(off) Q - Charge Injection (pC) Leakage Current (pA) - 20 Temperature (°C) - 1500 12 10 8 6 4 V+ = 4.3 V - 2000 V+ = 3 V V+ = 3.6 V V+ = 2.7 V 2 - 2500 0 0 www.vishay.com 4 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 0.5 1 1.5 2 2.5 3 3.5 VCOM - Analog Voltage (V) Analog Voltage (V) Leakage vs. Analog Voltage Charge Injection vs. Analog Voltage 4 Document Number: 69977 S-80899-Rev. A, 21-Apr-08 DG2747/DG2748/DG2749 Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 °C, unless otherwise noted 0 V+ = 3 V R L = 50 Ω t OFF V+ = 3.6 V -2 LOSS (dB) 14 t ON V+ = 2.7 V 12 t OFF V+ = 2.7 V 10 -3 -4 t ON V+ = 3.6 V 8 6 - 40 VT - Switching Threshold (V) -1 16 -5 - 20 0 20 40 60 -6 100k 80 100M Frequency (Hz) Insertion Loss vs. Frequency 0 1.4 - 10 - 40 °C to 85 °C - 20 1.2 1.1 1.0 0.9 0.8 0.7 - 30 OIRR - 40 - 50 - 60 XTALK - 70 - 80 V+ = + 3 V R L = 50 Ω - 90 0.6 0.5 1.5 10M Temperature (°C) 1.5 1.3 1M Switching Time vs. Temperature Loss, OIRR, X TALK (dB) tON, t OFF - Switching Time (ns) 18 - 100 - 110 2.0 2.5 3.0 3.5 4.0 V+ - Supply Voltage (V) Switching Threshold vs. Supply Voltage Document Number: 69977 S-80899-Rev. A, 21-Apr-08 4.5 100k 1M 10M 100M Frequency (Hz) Off-Isolation and Crosstalk vs. Frequency www.vishay.com 5 DG2747/DG2748/DG2749 Vishay Siliconix TEST CIRCUITS V+ Logic Input V+ COM NO or NC Switch Input VINH tr < 5 ns tf < 5 ns 50 % VINL Switch Output VOUT 0.9 x V OUT Logic Input Switch Output IN RL 50 Ω GND CL 35 pF 0V tON tOFF 0V Logic "1" = Switch On Logic input waveforms inverted for switches that have the opposite logic sense. CL (includes fixture and stray capacitance) VOUT = VCOM (R L RL + R ON ) Figure 1. Switching Time V+ VINH Logic Input VNO2 V+ COM2 NO2 VO2 IN2 VNC1 Switch Output IN1 RL2 50 Ω GND 90 % VO1 COM1 NC 1 50 % VINL VNO2 VO2 RL1 50 Ω CL2 35 pF CL1 35 pF 0V VNC1 VO1 0V Switch Output 90 % tD tD CL (includes fixture and stray capacitance) Figure 2. Break-Before-Make (DG2749) ΔVO V+ Rg Vg VIN = 0 - V+ VO INX V+ NC or NO IN OFF COM ON OFF VO CL 1 nF GND INX OFF ON Q = ΔVO x CL OFF 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 0 V, V+ IN COM RL Analyzer GND VCOM Off Isolation = 20 log V NO / NC Figure 4. Off-Isolation V+ C NO1 or NC1 VS Rg = 50 Ω V+ COM1 50 Ω IN1 0 V, V+ NO2 or NC2 0 V, V+ COM 2 VO RL IN2 GND XTALK Isolation = 20 log VO VS C = RF bypass Figure 5. Crosstalk V+ V+ COM Meter IN 0 V, V+ NC or NO HP4192A Impedance Analyzer or Equivalent GND 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