IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE IDTQS3VH125 QUICKSWITCH® PRODUCTS 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH BUS SWITCH FEATURES: DESCRIPTION: • N channel FET switches with no parasitic diode to VCC – Isolation under power-off conditions – No DC path to VCC or GND – 5V tolerant in OFF and ON state • 5V tolerant I/Os Ω typical • Low RON - 4Ω • Flat RON characteristics over operating range • Rail-to-rail switching 0 - 5V • Bidirectional dataflow with near-zero delay: no added ground bounce • Excellent RON matching between channels • VCC operation: 2.3V to 3.6V • High bandwidth - up to 500MHz • LVTTL-compatible control Inputs • Undershoot Clamp Diodes on all switch and control Inputs • Low I/O capacitance, 4pF typical • Available in QSOP and SOIC packages The QS3VH125 is a high bandwidth, Quad bus switch. The QS3VH125 has very low ON resistance, resulting in under 250ps propagation delay through the switch. The switches can be turned ON under the control of individual LVTTL-compatible active low Output Enable signals for bidirectional data flow with no added delay or ground bounce. In the ON state, the switches can pass signals up to 5V. In the OFF state, the switches offer very high impedence at the terminals. The combination of near-zero propagation delay, high OFF impedance, and over-voltage tolerance makes the QS3VH125 ideal for high performance communications applications. The QS3VH125 is characterized for operation from -40°C to +85°C. APPLICATIONS: • • • • • Hot-swapping 10/100 Base-T, Ethernet LAN switch Low distortion analog switch Replaces mechanical relay ATM 25/155 switching FUNCTIONAL BLOCK DIAGRAM 1A 2A 3A 4A 1Y 2Y 3Y 4Y 1OE 2OE 3OE 4OE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE JANUARY 2013 1 c 2013 Integrated Device Technology, Inc. DSC-5597/11 IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION NC 1 VCC 16 1OE 2 15 4OE 1A 3 14 4A 1Y 4 13 4Y 2OE 5 12 3OE 2A 6 11 3A 2Y 7 10 3Y GND 8 9 NC Symbol Description VTERM(2) SupplyVoltage to Ground Max Unit –0.5 to +4.6 V VTERM(3) DC Switch Voltage VS –0.5 to +5.5 V VTERM(3) DC Input Voltage VIN –0.5 to +5.5 V VAC AC Input Voltage (pulse width ≤20ns) –3 V IOUT DC Output Current (max. sink current/pin) 120 mA TSTG Storage Temperature –65 to +150 °C NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. All terminals except VCC . QSOP TOP VIEW CAPACITANCE 0V) Symbol (TA = +25°C, F = 1MHz, VIN = 0V, VOUT = (1) Parameter Typ. Max. Unit 3 5 pF CIN Control Inputs CI/O Quickswitch Channels (Switch OFF) 4 6 pF CI/O Quickswitch Channels (Switch ON) 8 12 pF NOTE: 1. This parameter is guaranteed but not production tested. 1OE 1 14 VCC 1A 2 13 4OE 1Y 3 12 4A 2OE 4 11 4Y PIN DESCRIPTION 3OE 2A 5 10 2Y 6 9 3A GND 7 8 3Y Pin Names I/O Description 1 A - 4A I/O Bus A 1 Y - 4Y I/O Bus Y 1OE - 4OE I Output Enable FUNCTION TABLE(1) SOIC TOP VIEW OE A Y L H H Connect L L L Connect H X X Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care 2 Function IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V Symbol VIH VIL Parameter Test Conditions Input HIGH Voltage Input LOW Voltage Min. Typ.(1) Max. Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 — — for Control Inputs VCC = 2.7V to 3.6V 2 — — Guaranteed Logic LOW VCC = 2.3V to 2.7V — — 0.7 for Control Inputs VCC = 2.7V to 3.6V — — 0.8 Unit V V IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC — — ±1 μA IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ 5V, Switches OFF — — ±1 μA IOFF Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V — — ±1 μA VCC = 2.3V VIN = 0V ION = 30mA — 6 8 RON Switch ON Resistance Typical at VCC = 2.5V VIN = 1.7V ION = 15mA — 7 9 VCC = 3V VIN = 0V ION = 30mA — 4 6 VIN = 2.4V ION = 15mA — 5 8 NOTE: 1. Typical values are at VCC = 3.3V and TA = 25°C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 14 RON (ohms) 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 VIN (Volts) 3 3.0 3.5 4.0 4.5 5.0 Ω IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol Test Conditions(1) Parameter Min. Typ. Max. Unit ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC, f = 0 — 2 4 mA ΔICC Power Supply Current (2,3) per Input HIGH VCC = Max., VIN = 3V, f = 0 per Control Input — — 30 μA ICCD Dynamic Power Supply Current VCC = 3.3V, A and Y Pins Open, Control Inputs (4) See Typical ICCD vs Enable Frequency graph below Toggling @ 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per input driven at the specified level. A and Y pins do not contribute to ΔIcc. 3. This parameter is guaranteed but not tested. 4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and Y inputs do not contribute to the Dynamic Power Supply Current. This parameter is guaranteed but not production tested. TYPICAL ICCD vs ENABLE FREQUENCY CURVE AT VCC = 3.3V 6 ICCD (mA) 4 2 0 0 2 4 6 8 10 12 ENABLE FREQUENCY (MHz) 4 14 16 18 20 IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40°C to +85°C VCC = 2.5 ± 0.2V (1) Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ fxOE Parameter Data Propagation Delay(2,3) A to Y Switch Turn-On Delay xOE to xA/xY Switch Turn-Off Delay xOE to xA/xY Operating Frequency -Enable(2,5) Min. (4) VCC = 3.3 ± 0.3V (1) ⎯ Max. 0.2 Min. (4) ⎯ Max. 0.2 Unit ns 1.5 8 1.5 6.5 ns 1.5 7 1.5 7 ns ⎯ 10 ⎯ 20 MHz NOTES: 1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS. 2. This parameter is guaranteed but not production tested. 3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.2ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 4. Minimums are guaranteed but not production tested. 5. Maximum toggle frequency for xOE control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD). 5 IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS NFET 0 to +5V Vcc = 3.3V +6.5V CHARGE PUMP OE 0 to +5V DRIVER SINGLE HOT SWITCH Rail-to-Rail Switching PHY 3VH SWITCH 4.5VPP LOGIC SIDE 10Mbps to 100Mbps Z = 100 Ω Z = 100 Ω >100m 4.5VPP TWISTED PAIR LOGIC SIDE 2VPP Fast Ethernet Data Switching (LAN Switch) ZERO DOWN TIME SYSTEM PLUGGABLE CARD/ LIVE SYSTEM CARD I/O ON CARD LOGIC CONNECTOR QS3VHXXX CPU CARD I/O ON CARD LOGIC CONNECTOR QS3VHXXX RAM BUS Hot-Swapping 6 IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC(1)= 3.3V ± 0.3V VCC(2)= 2.5V ± 0.2V Unit VLOAD 6 2 x Vcc V VIH 3 Vcc SAME PHASE INPUT TRANSITION V VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V VOH VT VOL VIH VT 0V OPPOSITE PHASE INPUT TRANSITION Propagation Delay VLOAD VCC 500Ω (1, 2) Pulse Generator VIN CONTROL INPUT GND tPZL VOUT D.U.T. RT DISABLE ENABLE Open OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL Test Circuits for All Outputs tPLZ VLOAD/2 VT tPHZ VT 0V VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. Enable and Disable Times DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns. SWITCH POSITION Test Switch tPLZ/tPZL VLOAD tPHZ/tPZH GND tPD Open 7 IDTQS3VH125 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION QS XXXXX XX Device Type Package X Blank 8 Tube or Tray Tape and Reel S1G QG SOIC - Green QSOP - Green 3VH125 2.5V / 3.3V Quad Active Low, High Bandwidth Switch Datasheet Document History 09/01/08 Pg. 4, 8 01/30/13 Pg. 1, 8 Revise ICCQ Typ. and Max. Remove non green package version and updated the ordering information by removing the “IDT” notation. Updated the ordering information by adding Tape and Reel information. CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 8 for Tech Support: [email protected]