ADG3241BKS-REEL

2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 ADG3241 FEATURES 225 ps Propagation Delay through the Switch 4.5
Switch Connection between Ports Data Rate 1.5 Gbps 2.5 V/3.3 V Supply Operation Selectable Level Shifting/Translation Level Translation 3.3 V to 2.5 V 3.3 V to 1.8 V 2.5 V to 1.8 V Small Signal Bandwidth 770 MHz Tiny 6-Lead SC70 Package and 6-Lead SOT-66 Package FUNCTIONAL BLOCK DIAGRAM A B BE APPLICATIONS 3.3 V to 1.8 V Voltage Translation 3.3 V to 2.5 V Voltage Translation 2.5 V to 1.8 V Voltage Translation Bus Switching Bus Isolation Hot Swap Hot Plug Analog Switch Applications GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The ADG3241 is a 2.5 V or 3.3 V, single digital switch. It is designed on a low voltage CMOS process, which provides low power dissipation yet gives high switching speed and very low on resistance. This allows the input to be connected to the output without additional propagation delay or generating additional ground bounce noise. 1. 2. 3. 4. 5. 3.3 V or 2.5 V supply operation. Extremely low propagation delay through switch. 4.5 Ω switches connect inputs to outputs. Level/voltage translation. Tiny SC70 package and SOT-66 package. The switch is enabled by means of the bus enable (BE) input signal. This digital switch allows a bidirectional signal to be switched when ON. In the OFF condition, signal levels up to the supplies are blocked. This device is ideal for applications requiring level translation. When operated from a 3.3 V supply, level translation from 3.3 V inputs to 2.5 V outputs is allowed. Similarly, if the device is operated from a 2.5 V supply and 2.5 V inputs are applied, the device will translate the outputs to 1.8 V. In addition to this, a level translating select pin (SEL) is included. When SEL is low, VCC is reduced internally, allowing for level translation between 3.3 V inputs and 1.8 V outputs. This makes the device suited to applications requiring level translation between different supplies, such as converter to DSP/microcontroller interfacing. REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2004 Analog Devices, Inc. All rights reserved. ADG3241–SPECIFICATIONS1 Parameter Symbol DC ELECTRICAL CHARACTERISTICS Input High Voltage VINH VINH Input Low Voltage VINL VINL Input Leakage Current II OFF State Leakage Current IOZ ON State Leakage Current Maximum Pass Voltage VP CAPACITANCE3 A Port Off Capacitance B Port Off Capacitance A, B Port On Capacitance Control Input Capacitance (VCC = 2.3 V to 3.6 V, GND = 0 V, all specifications TMIN to TMAX, unless otherwise noted.) Conditions Min VCC = 2.7 V to 3.6 V VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V VCC = 2.3 V to 2.7 V 2.0 1.7 0 ≤ A, B ≤ VCC 0 ≤ A, B ≤ VCC VA/VB = VCC = SEL = 3.3 V, IO = –5 µA VA/VB = VCC = SEL = 2.5 V, IO = –5 µA VA/VB = VCC = 3.3 V, SEL = 0 V, IO = –5 µA CA OFF CB OFF CA, CB ON CIN f = 1 MHz f = 1 MHz f = 1 MHz f = 1 MHz tPHL, tPLH tPZH, tPZL tPHZ, tPLZ tPZH, tPZL tPHZ, tPLZ tPZH, tPZL tPHZ, tPLZ CL = 50 pF, VCC = SEL = 3 V VCC = 3.0 V to 3.6 V; SEL = VCC VCC = 3.0 V to 3.6 V; SEL = VCC VCC = 3.0 V to 3.6 V; SEL = 0 V VCC = 3.0 V to 3.6 V; SEL = 0 V VCC = 2.3 V to 2.7 V; SEL = VCC VCC = 2.3 V to 2.7 V; SEL = VCC VCC = SEL = 3.3 V; VA/VB = 2 V VCC = SEL = 3.3 V; VA/VB = 2 V DIGITAL SWITCH On Resistance RON VCC = 3 V, SEL = VCC, VA = 0 V, IBA = 8 mA VCC = 3 V, SEL = VCC, VA = 1.7 V, IBA = 8 mA VCC = 2.3 V, SEL = VCC, VA = 0 V, IBA = 8 mA VCC = 2.3 V, SEL = VCC, VA = 1 V, IBA = 8 mA VCC = 3 V, SEL = 0 V, VA = 0 V, IBA = 8 mA VCC = 3 V, SEL = 0 V, VA = 1 V, IBA = 8 mA POWER REQUIREMENTS VCC Quiescent Power Supply Current ICC Digital Inputs = 0 V or VCC; SEL = VCC Digital Inputs = 0 V or VCC; SEL = 0 V VCC = 3.6 V, BE = 3.0 V; SEL = VCC SWITCHING CHARACTERISTICS3 Propagation Delay A to B or B to A, tPD4 Bus Enable Time BE to A or B5 Bus Disable Time BE to A or B5 Bus Enable Time BE to A or B5 Bus Disable Time BE to A or B5 Bus Enable Time BE to A or B5 Bus Disable Time BE to A or B5 Maximum Data Rate Channel Jitter Increase in ICC per Input6 2.2 1.5 1.5 B Version Typ2 Max ± 0.01 ± 0.01 ± 0.01 2.5 1.8 1.8 3.5 3.5 7 4 1 1 1 1 1 1 3.2 3 3 2.5 3 2.5 1.5 45 4.5 12 5 9 5 12 2.3 ⌬ICC 0.8 0.7 ±1 ±1 ±1 2.7 2.1 2.1 0.01 0.1 0.15 Unit V V V V µA µA µA V V V pF pF pF pF 0.225 4.6 4 4 3.8 4 3.4 ns ns ns ns ns ns ns Gbps ps p-p 8 28 9 18 8 Ω Ω Ω Ω Ω Ω 3.6 1 0.2 8 V µA mA µA NOTES 1 Temperature range is as follows: B Version: –40°C to +85°C. 2 Typical values are at 25°C, unless otherwise stated. 3 Guaranteed by design, not subject to production test. 4 The digital switch contributes no propagation delay other than the RC delay of the typical R ON of the switch and the load capacitance when driven by an ideal voltage source. Since the time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the digital 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. 5 See Timing Measurement Information section. 6 This current applies to the control pin BE only. The A and B ports contribute no significant ac or dc currents as they transition. Specifications subject to change without notice. –2– REV. A ADG3241 ABSOLUTE MAXIMUM RATINGS* Table I. Truth Table (TA = 25°C, unless otherwise noted.) VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to +4.6 V Digital Inputs to GND . . . . . . . . . . . . . . . . . –0.5 V to +4.6 V DC Input Voltage . . . . . . . . . . . . . . . . . . . . . –0.5 V to +4.6 V DC Output Current . . . . . . . . . . . . . . . . . 25 mA per Channel Operating Temperature Range Industrial (B Version) . . . . . . . . . . . . . . . . . –40°C to +85°C Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C SC70 Package ␪JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 332°C/W SOT-66 Package ␪JA Thermal Impedance . . . . . . . . . 191°C/W (4-Layer Board) Lead Temperature, Soldering (10 sec) . . . . . . . . . . . . . 300°C IR Reflow, Peak Temperature (