STG3682 Low voltage high bandwidth dual SPDT switch Features ■ Ultra low power dissipation: – ICC = 0.2µA (Max.) at TA = 85°C ■ Low “ON” resistance: – RON = 4.6Ω (TA = 25°C) at VCC = 4.3V – RON = 5.8Ω (TA = 25°C) at VCC = 3.0V ■ Wide operating voltage range: – VCC (Opr) = 1.65V to 4.3V single supply ■ 4.3V tolerant and 1.8V compatible threshold on digital control input at VCC = 2.3V to 3.0V ■ Typical bandwidth (-3dB) at 800MHz on all channels ■ Latch-up performance exceeds 100mA per JESD 78, Class II ■ ESD performance exceeds JESD22 – 2000-V Human body model (A114-A) ■ USB (2.0) High speed (480Mbps) signal switching compliant QFN10 (1.8mm x 1.4mm) Description The STG3682 is a high-speed CMOS low voltage dual analog S.P.D.T. (Single Pole Dual Throw) Switch or 2:1 Multiplexer /Demultiplexer Switch fabricated in silicon gate C2MOS technology. It is designed to operate from 1.65V to 4.3V, making this device ideal for portable applications. The nSEL inputs are provided to control the switch. The switch S1 is ON (they are connected to common Ports Dn) when the nSEL input is held high and OFF (high impedance state exists between the two ports) when SEL is held low; the switch S2 is ON (it is connected to common Port D) when the nSEL input is held low and OFF (high impedance state exists between the two ports) when nSEL is held high. Additional key features are fast switching speed, Break Before Make Delay Time and Ultra Low Power Consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them ESD immunity and transient excess voltage. Order codes Part number Package Packaging STG3682QTR QFN10 (1.8mm x 1.4mm) Tape and reel December 2006 Rev 1 1/19 www.st.com 19 Contents STG3682 Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Test circuits 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2/19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 STG3682 Pin settings 1 Pin settings 1.1 Pin connection 1S1 1 VCC Pin connection (top through view) SEL1 Figure 1. 10 9 1.2 3 4 5 GND 1S2 SEL2 D1 2 8 2S2 7 D2 6 2S1 Pin description Table 1. Pin description Note: Pin N° Symbol Name and function 1,3,6,8 1S1, 1S2, 2S1, 2S2 2,7 D1,D2 10,4 SEL1,SEL2 9 VCC Possitive supply voltage 5 GND Ground (0V) Independent channels Common channels Control Exposed pad must be soldered to a floating plane. Do NOT connect to power or ground. 3/19 Device summary 2 STG3682 Device summary Figure 2. Input equivalent circuit S2 D S1 SEL Table 2. Truth table 1. 4/19 SEL Switch S1 Switch S2 H ON OFF (1) L OFF (1) ON High Impedance STG3682 3 Maximum rating Maximum rating Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 3. Absolute maximum ratings Symbol VCC Parameter Supply voltage Value Unit -0.5 to 5.5 V -0.5 to VCC + 0.5 V -0.5 to 5.5 V -0.5 to VCC + 0.5 V VI DC input voltage VIC DC control input voltage VO DC output voltage IIKC DC input diode current on control pin (VSEL<0V) -50 mA IIK DC input diode current (VSEL<0V) ±50 mA IOK DC output diode current ±20 mA IO DC output current ±128 mA IOP DC output current peak (pulse at 1ms, 10% duty cycle) ±300 mA DC VCC or ground current ±100 mA PD Power dissipation at TA = 70°C (1) 1120 mW Tstg Storage temperature -65 to 150 °C 300 °C Value Unit 1.65 to 4.3 V ICC or IGND TL Lead temperature (10 sec) 1. Derate above 70ºC by 18.5mW/C 3.1 Recommended operating conditions Table 4. Recommended operating conditions Symbol VCC Parameter Supply voltage(1) VI Input voltage 0 to VCC V VIC Control input voltage 0 to 4.3 V VO Output voltage 0 to VCC V Top Operating temperature -40 to 85 °C dt/dv Input rise and fall time control input VCC = 1.65V to 2.7V 0 to 20 VCC = 3.0 to 4.3V 0 to 10 ns/V 1. Truth Table guaranteed: 1.2V to 4.3V 5/19 Electrical characteristics 4 STG3682 Electrical characteristics Table 5. DC specifications Test conditions Symbol VIH VIL Parameter High level input voltage Low level input voltage Vcc (V) Min Switch ON peak resistance ∆RON Switch On resistance ON resistance match between channels (1) ON resistance flatness (2) 2.3-2.5 1.2 1.2 2.7-3.0 1.3 1.3 3.3-3.6 1.4 1.4 4.3 1.6 0.25 2.3-2.5 0.25 2.7-3.0 0.25 3.3-3.6 0.30 4.3 0.40 2.7 3.0 3.7 VS = 0V to VCC IS = 8mA IOFF 6/19 Unit Max V 1.6 1.65-1.95 12.0 16.0 6.3 8.0 5.8 7.5 5.0 6.5 4.6 6.0 3.0 VS = 3V IS = 8mA 4.0 5.2 3.0 VS = 0.8V IS = 8mA 5.0 6.5 VS @ RON Max IS = 8mA 0.3 V Ω Ω 1.8 2.7 3.0 3.7 Ω 4.3 6.6 2.7 3.0 3.7 VS = 0V to VCC IS = 8mA 4.3 OFF state leakage current (SN), (D) Min 0.65VCC 1.8 RFLAT Max 0.65VCC 4.3 RON Typ -40 to 85°C 1.65 -1.95 1.8 RPEAK Value TA = 25°C 4.3 2.0 Ω 1.7 1.5 1.6 VS = 0.3 or 4V ±20 ±100 nA STG3682 Electrical characteristics Table 5. DC specifications Test conditions Symbol Parameter Value TA = 25°C Vcc (V) Min IIN Input leakage current ICC Quiescent supply current ICCLV Quiescent supply current low voltage driving 0 to 4.3 1.65 to 4.3 4.3 Typ -40 to 85°C Max Min Unit Max VSEL = 0 to 4.3V ±0.1 ±1 µA VSEL = VCC or GND ±0.1 ±1.0 µA V1-2SEL, V3-4SEL = 1.65V ±37 ±50 ±100 V1-2SEL, V3-4SEL = 1.80V ±33 ±40 ±50 V1-2SEL, V3-4SEL = 2.60V ±11 ±20 ±30 µA 1. Note 1: ∆Ron = max |mSN-nSN|, where m = 1..4 and n = 1..4, N = 1..2 2. Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. 7/19 Electrical characteristics STG3682 Table 6. AC electrical characteristics (CL = 35pF, RL = 50Ω, tr = tf ≤5ns) Test conditions Symbol Parameter Value TA = 25°C Vcc (V) Min tPLH, tPHL Propagation delay 0.30 2.3-2.7 0.30 3.0-3.3 0.25 3.6-4.3 1.65-1.95 tON Turn-ON time 1.65-1.95 Turn-OFF time VS = 1.5V VS = 0.8 VS = 1.5V 3.6-4.3 1.65-1.95 tD Break before make time delay 2.3-2.7 3.0-3.3 CL = 35pF RL = 50Ω VS = 1.5V 3.6-4.3 Charge injection 2.3 3.0 4.3 8/19 ns 20 26 34 15 20 26 12 15 20 14 18 23 11 14 18 10 13 17 ns 1 7 1 5 1 4 1 3 ns ns 2.8 1.65 Q Max 22 2.3-2.7 3.0-3.3 Min 31 2.3-2.7 3.0-3.3 Max Unit 0.25 VS = 0.8V 3.6-4.3 tOFF Typ 1.65-1.95 -40 to 85°C CL = 100pF VGEN = 0V RGEN = 0Ω 3.5 3.8 5.0 pC STG3682 Electrical characteristics Table 7. Analog switch characteristics (CL = 5pF, RL = 50Ω, TA = 25°C) Test Conditions Symbol Parameter Value TA = 25°C Vcc (V) Min OIRR Xtalk OFF Isolation (1) Crosstalk 1.65 - 4.3 1.65 - 4.3 Typ -40 to 85°C Max Min Unit Max VS = 1VRMS, f = 1MHz Signal = 0 dBm -79 VS = 1VRMS, f = 10MHz Signal = 0 dBm -60 VS = 1VRMS, f = 1MHz Signal = 0 dBm -78 VS = 1VRMS, f = 10MHz Signal = 0 dBm -61 RL = 50Ω Signal = 0dBm 800 MHz dB dB BW -3dB bandwidth 3.0 - 4.3 DG Differential gain 3.0 - 4.3 RL = 150Ω 0.64 % DP Differential phase 3.0 - 4.3 RL = 150Ω 0.1 deg CIN Control pin input capacitance CON Sn Port capacitance when switch is enabled COFF Sn Port capacitance when switch is disabled VCC = 0V 6.2 3.3 f = 1MHz 22 3.3 f = 1MHz 21 pF 1. Off Isolation = 20Log10 (VD/VS), VD = output. VS = input to off switch. Table 8. USB related AC electrical characteristics Test conditions Symbol Parameter Value TA = 25°C VCC (V) Min Typ -40 to 85°C Max Min Unit Max tSK(0) Channel-to-channel skew 3.0 to 3.6 CL=10pF 26 ps tSK(P) Skew of opposite transition of the same output 3.0 to 3.6 CL=10pF 60 ps 3.0 to 3.6 RL = 50Ω, CL= 10pF, tR = tF = 750ps at 480Mbps 130 ps TJ Total jitter 9/19 Test circuits STG3682 5 Test circuits Figure 3. ON-Resistance Figure 4. Bandwidth Figure 5. OFF Leakage Figure 6. Channel to channel crosstalk Figure 7. OFF Isolation 10/19 STG3682 Figure 8. Test circuits Test circuit Note: 1 CL = 5/35pF or equivalent: (includes jig capacitance) 2 RL = 50Ω or equivalent 3 RT = ZOUT of pulse generator (typically 50Ω) 11/19 Test circuits Figure 9. Break-before-make time delay Figure 10. Switching time and charge injection (VGEN = 0V, RGEN = 0Ω, RL = 1MΩ, CL = 100pF) Figure 11. Turn ON, turn OFF delay time 12/19 STG3682 STG3682 6 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com 13/19 Package mechanical data STG3682 Table 9. QFN10L(1.8x1.4) Mechical data ref. mm Nom Min Max Nom Min Max 0.50 0.45 0.55 0.020 0.017 0.021 A1 0.02 0 0.05 0.001 0 0.002 A3 0.127 0.005 0 0 b 0.20 0.007 0.006 0.010 A 0.15 0.25 D 1.80 1.70 1.90 0.070 0.066 0.074 E 1.40 1.30 1.50 0.055 0.051 0.059 e 0.40 L 0.40 0.011 0.020 0.015 0.30 Figure 12. Package dimension 14/19 inch 0.50 0.015 STG3682 Package mechanical data Figure 13. QFN10L(1.8x1.4) Foot print recommendation Figure 14. QFN10L(1.8x1.4) carrier type 15/19 Package mechanical data Figure 15. QFN10L(1.8x1.4) Reel information 16/19 STG3682 STG3682 Package mechanical data Figure 16. QFN10L(1.8x1.4) Reel information 17/19 Revision history 7 STG3682 Revision history Table 10. Revision history 18/19 Date Revision 04-Dec-2006 1 Changes First release STG3682 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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