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DG2718
New Product
Vishay Siliconix
0.45-W CMOS, 1.65-V to 3.6-V, Dual DPDT Analog Switch
FEATURES
D Low Voltage Operation (1.65 V to 3.6 V) D Low On-Resistance - rON: 0.45 W @ 2.7 V D Fast Switching: tON = 28 ns tOFF = 17 ns D QFN-16 (3x3) Package
BENEFITS
D D D D D Reduced Power Consumption High Accuracy Reduce Board Space TTL/1.8-V Logic Compatible High Bandwidth
APPLICATIONS
D D D D D Cellular Phones Speaker Headset Switching Audio and Video Signal Routing PCMCIA Cards Battery Operated Systems
DESCRIPTION
The DG2718 is a dual double-pole/double-throw monolithic CMOS analog switch designed for high performance switching of analog signals. Combining low power, high speed, low on-resistance and small physical size, the DG2718 is ideal for portable and battery powered applications requiring high performance and efficient use of board space. The DG2718 is built on Vishay Siliconix's low voltage process. An epitaxial layer prevents latchup. Break-before-make is guaranteed. The switch conducts equally well in both directions when on, and blocks up to the power supply level when off.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG2718
QFN-16 (3 X 3) COM1 NO1 16 15 V+ 14 NC4 13
TRUTH TABLE Logic
0 12 11 10 9 COM4 NO4
NC1, 2, 3 and 4
ON OFF
NO1, 2, 3 and 4
OFF ON
NC1 IN1, IN2 NO2 COM2
1 2 3 4
1
ORDERING INFORMATION*
IN3, IN4
Temp Range
NC3 -40 to 85C
Package
16-Pin QFN (3 x 3 mm) Variation 2
Part Number
DG2718DN-T1-E4
* Lead-Free Version Available 5 NC2 NOTE: Underside exposed pad has no device electrical connection. It is recommended that no electrical connection is made to it. 6 GND 7 8
NO3 COM3
Top View
Document Number: 72677 S-52186--Rev. B, 17-Oct-05
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DG2718
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Reference to GND V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +4.0 V IN, COM, NC, NOa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V+ + 0.3 V) Current (Any terminal except NO, NC or COM) . . . . . . . . . . . . . . . . . . 30 mA Continuous Current (NO, NC, or COM) . . . . . . . . . . . . . . . . . . . . . "300 mA Peak Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "500 mA (Pulsed at 1 ms, 10% duty cycle) Storage Temperature (D Suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150C Package Solder Reflow Conditionsd 16-Pin QFN (3 x 3 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250C Power Dissipation (Packages)b QFN-16c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1385 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 17.3 mW/_C above 70_C d. Manual soldering with iron is not recommended for leadless components. The QFN is a leadless package. The end of the lead terminal is exposed copper (not plated) as a result of the singulation process in manufacturing. A solder fillet at the exposed copper lip cannot be guaranteed and is not required to ensure adequate bottom side solder interconnection.
New Product
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.
SPECIFICATIONS (V+ = 1.8 V)
Test Conditions Otherwise Unless Specified Parameter Analog Switch
Analog Signal Ranged On-Resistanced VNO, VNC, VCOM rON V+ = 1.8 V, VCOM = 0.2 V/0.9 V, INO, INC = 100 mA Full Room Full 0 0.7 V+ 2.0 2.8 V W
Limits
-40 to 85_C
Symbol
V+ = 1.8 V, VIN = 0.4 or 1.1 Ve
Tempa
Minb
Typc
Maxb
Unit
Digital Control
Input High Voltage Input Low Voltage Input Capacitance Input Current
VINH
Full Full Full VIN = 0 or V+ Full
1.1 0.4 6 -1 1 V pF mA
VINL
Cin
IINL or IINH
Dynamic Characteristics
Turn-On Time Turn-Off Time Break-Before-Make Time Charge Injectiond Off-Isolationd Crosstalkd NO, NC Off Capacitanced Channel-On Channel On Capacitanced tON tOFF td QINJ OIRR XTALK CNO(off) CNC(off) CNO(on) CNC(on) VIN = 0 or V+, f = 1 MHz V+ CL = 1 nF, VGEN = 0 V, RGEN = 0 W RL = 50 W CL = 5 pF f = 100 kHz W, pF, VNO or VNC = 1.5 V, RL = 50 W, CL = 35 pF Room Full Room Full Full Room Room Room Room Room Room Room 16 65 -74 -74 108 108 225 225 pF dB pC 62 24 94 92 52 55 ns
Power Supply
Power Supply Current I+ VIN = 0 or V+ Full 1.0 mA
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Document Number: 72677 S-52186--Rev. B, 17-Oct-05
DG2718
New Product
SPECIFICATIONS (V+ = 3 V)
Test Conditions Otherwise Unless Specified Parameter Analog Switch
Analog Signal Ranged On-Resistanced rON Flatnessd rON Matchd VNO, VNC, VCOM rON rON Flatness DrON INO(off), INC(off) ICOM(off) Channel-On Leakage Current ICOM(on) V+ = 2.7 V, VCOM = 0.2 V/1.5 V, INO, INC = 100 mA V+ = 2.7 V VCOM = 0 to V+ INO, INC = 100 mA V+, Full Room Full Room Room Room Full Room Full Room Full -1 -10 -1 -10 -1 -10 0 0.45 V+ 0.6 0.7 0.15 W V
Vishay Siliconix
Limits
-40 to 85_C
Symbol
V+ = 3 V, "10%, VIN = 0.5 or 1.4 Ve
Tempa
Minb
Typc
Maxb
Unit
0.1 0.05
Switch Off Leakage Current
V+ = 3.3 V, VNO, VNC = 0.3 V/3 V VCOM = 3 V/0.3 V V+ = 3.3 V, VNO, VNC = VCOM = 0.3 V/3 V
1 10 1 10 1 10 nA
Digital Control
Input High Voltage Input Low Voltage Input Capacitance Input Current
VINH
Full Full Full VIN = 0 or V+ Full
1.4 0.5 6 -1 1 V pF mA
VINL
Cin
IINL or IINH
Dynamic Characteristics
Turn-On Time Turn-Off Time Break-Before-Make Time Charge Injectiond Off-Isolationd Crosstalkd NO, NC Off Capacitanced Channel-On Channel On Capacitanced tON tOFF td QINJ OIRR XTALK CNO(off) CNC(off) CNO(on) CNC(on) VIN = 0 or V+, f = 1 MHz V+ CL = 1 nF, VGEN = 0 V, RGEN = 0 W RL = 50 W CL = 5 pF f = 100 kHz W, pF, VNO or VNC = 1.5 V, RL = 50 W, CL = 35 pF Room Full Room Full Full Room Room Room Room Room Room Room 1 232 -75 -75 102 102 234 234 pF dB pC 28 17 57 60 45 47 ns
Power Supply
Power Supply Range Power Supply Current V+ I+ VIN = 0 or V+ Full 2.7 3.3 1.0 V mA
Notes:
a. b. c. d. e. f. Room = 25C, Full = as determined by the operating suffix. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. Typical values are for design aid only, not guaranteed nor subject to production testing. Guarantee by design, nor subjected to production test. VIN = input voltage to perform proper function. Guaranteed by 5-V leakage testing, not production tested.
Document Number: 72677 S-52186--Rev. B, 17-Oct-05
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DG2718
Vishay Siliconix
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rON vs. VCOM and Supply Voltage
1.50 T = 25_C IS = 100 mA r ON - On-Resistance ( W ) V+ = 1.8 V 1.00 V+ = 2.0 V 0.75 V+ = 2.3 V V+ = 2.7 V 0.50 V+ = 3.0 V 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 IS = 100 mA V+ = 3 V
rON vs. Analog Voltage and Temperature
1.25 r ON - On-Resistance ( W )
V+ = 1.65 V
85_C 25_C -40_C
0.25 V+ = 3.3 V 0.00 0.0 V+ = 3.6 V 3.0 3.5 4.0
0.5
1.0
1.5
2.0
2.5
0.5
1.0
1.5
2.0
2.5
3.0
VCOM - Analog Voltage (V)
VCOM - Analog Voltage (V)
Supply Current vs. Temperature
10000 V+ = 3 V VIN = 0 V I+ - Supply Current (nA) I+ - Supply Current (A) 1000 100 mA 10 mA 1 mA 100 mA 10 mA 1 mA 100 nA 10 nA 1 nA 1 -60 -40 -20 0 20 40 60 80 100 100 pA
Supply Current vs. Input Switching Frequency
V+ = 2.7 V
100
10
10
100
1K
10 K
100 K
1M
10 M
Temperature (_C)
Input Switching Frequency (Hz)
Leakage Current vs. Temperature
1000 V+ = 3.3 V INO(off), INC(off) 100 300 250 200 Leakage Current (pA) Leakage Current (pA) 150 100 50 0 -50 -100 -150 -200 -250 1 -60 -40 -20 0 20 40 60 80 100 -300 0.00
Leakage vs. Analog Voltage
V+ = 3.3 V ICOM(off) INO(off), IINC(off)
ICOM(off) 10 ICOM(on)
ICOM(on)
0.50
1.00
1.50
2.00
2.50
3.00
Temperature (_C)
VCOM, VNO, VNC - Analog Voltage (V)
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Document Number: 72677 S-52186--Rev. B, 17-Oct-05
DG2718
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Switching Time vs. Temperature
70 tON V+ = 1.8 V t ON / t OFF - Switching Time (m s) 60 Loss, OIRR, X TALK (dB) 50 tON V+ = 2.3 V 40 30 20 10 0 -60 -90 -40 -20 0 20 40 60 80 100 100 K 1M 10 M Frequency (Hz) 100 M 1G tON V+ = 3.0 V tOFF V+ = 1.8 V tOFF V+ = 2.3 V tOFF V+ = 3.0 V LOSS -10 XTALK -30 OIRR -50 10
Vishay Siliconix
Insertion Loss, Off-Isolation Crosstalk vs. Frequency
-70
V+ = 3 V RL = 50 W
Temperature (_C)
Switching Threshold vs. Supply Voltage
2.00 1.75 - Switching Threshold (V) Q - Charge Injection (pC) 1.50 1.25 1.00 0.75 0.50 0.25 0.00 1.0 250 200 150
Charge Injection vs. Analog Voltage
V+ = 3 V 100 V+ = 1.8 V 50 0 -50 -100 0.0
VT
1.5
2.0
2.5
3.0
3.5
4.0
0.5
1.0
1.5
2.0
2.5
3.0
V+ - Supply Voltage (V)
VCOM - Analog Voltage (V)
TEST CIRCUITS
V+ Logic Input V+ Switch Input NO or NC IN Logic Input GND 0V CL (includes fixture and stray capacitance) VOUT + VCOM RL R L ) R ON Logic "1" = Switch On Logic input waveforms inverted for switches that have the opposite logic sense. RL 300 W CL 35 pF COM Switch Output VOUT 0.9 x VOUT Switch Output 0V tON tOFF VINH 50% VINL tr t 5 ns tf t 5 ns
Figure 1.
Document Number: 72677 S-52186--Rev. B, 17-Oct-05
Switching Time
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DG2718
Vishay Siliconix
TEST CIRCUITS
V+ Logic Input COM VO RL 300 W CL 35 pF VINH VINL tr <5 ns tf <5 ns
New Product
V+ VNO VNC NO NC IN GND
VNC = VNO VO Switch 0V Output
90%
tD
tD
CL (includes fixture and stray capacitance)
Figure 2.
Break-Before-Make Interval
V+
Rgen +
V+ NC or NO IN COM VOUT VOUT IN CL = 1 nF GND On
DVOUT
Vgen
VIN = 0 - V+
Off Q = DVOUT x CL
On
IN depends on switch configuration: input polarity determined by sense of switch.
Figure 3.
Charge Injection
V+ 10 nF 10 nF V+ NC or NO IN COM COM 0 V, 2.4 V RL GND 0V, 2.4 V IN
V+
V+ COM Meter HP4192A Impedance Analyzer or Equivalent f = 1 MHz
NC or NO GND
Analyzer
VCOM Off Isolation + 20 log V NO NC
Figure 4.
Off-Isolation
Figure 5.
Channel Off/On Capacitance
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Document Number: 72677 S-52186--Rev. B, 17-Oct-05
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
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