sgm3157 模拟开关

1、SGM3157 4.5 Low Voltage SPDT Analog Switch in 6-pin SC70 GENERAL DESCRIPTION The SGM3157 is a single, bidirectional, single-pole/ double-throw (SPDT) CMOS analog switch that is designed to operate from a single +1.8V to +5.5V supply. It features high-bandwidth (300MHz) and low on- resistance (4.5 TYP), Targeted applications for audio switching. SGM3157 features guaranteed on-resistance matching (0.3 MAX) between switches and guaranteed on-resistance flatness over the signal range (2.3 TYP). This

2、 ensures excellent linearity and low distortion when switching audio signals. SGM3157 is available in Green SC70-6 package. APPLICATIONS Portable Instrumentation Battery-Operated Equipment Computer Peripherals Cell Phones PDAs MP3s FUNCTION TABLE LOGIC NO NC 0 OFF ON 1 ON OFF Switches Shown for Logic “0” Input FEATURES Voltage Operation: 1.8V to 5.5V On-Resistance: 4.5 (TYP) at 5.0V Fast Switching Times tON 20ns tOFF 15ns High Bandwidth: 300MHz High Off-Isolation: -51dB at 10MHz Rail-to-Rail Ope

3、ration TTL/CMOS Compatible Break-Before-Make Switching Extended Industrial Temperature Range: -40 to +85 Available in Green SC70-6 Package PIN CONFIGURATION (TOP VIEW) SGM3157YC6SGM3157YC6 43 16 5 NOIN SC70-6SC70-6 COM V+ NC 2GND 31573157 4.5 Low Voltage SPDT Analog Switch in 6-pin SC70 SGM3157 PACKAGE/ORDERING INFORMATION MODEL PIN- PACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SGM3157 SC70-6 -40 to +85 SGM3157YC6/TR 3157 Tape and Reel, 3000 ABSOLUTE MAXIMUM

4、 RATINGS V+, IN to GND.-0.3V to 6V Analog, Digital voltage range (1). -0.3V to (V+) + 0.3V Continuous Current NO, NC, or COM50mA Peak Current NO, NC, or COM .80mA Operating Temperature Range. -40 to +85 Junction Temperature150 Storage Temperature. -65 to +150 Lead Temperature (soldering, 10s) 260 ESD (HBM) 2000V ESD (MM) 400V NOTES: 1. Signals on NC, NO, or COM or IN exceeding V+ will be clamped by internal diodes. Limit forward diode current to maximum current ratings. 2. Stresses beyond those

5、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. CAUTION This integrated circuit can be damaged by ESD if you dont pay attention to ESD protection. SGMICRO recommends that all

6、integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. SGMICRO reserves the right to make any change in circuit design, specification or other related things if

7、necessary without notice at any time. Please contact SGMICRO sales office to get the last datasheet. PIN DESCRIPTION NAME PIN FUNCTION NO 1 Normally-open terminal GND 2 Ground NC 3 Normally-closed terminal COM 4 Common terminal V+ 5 Power supply IN 6 Digital control pin to connect the COM terminal to the NO or NC terminals NOTE: NO, NC and COM terminals may be an input or output. 4.5 Low Voltage SPDT Analog Switch in 6-pin SC70 SGM3157 ELECTRICAL CHARACTERISTICS (V+ = +4.5V to +5.5V, VIH = +2.0V

8、, VIL = +0.8V, TA = -40 to +85, Typical values are at V+ = 5.0V, TA = +25, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS TEMP MIN TYPMAXUNITS ANALOG SWITCH Analog Signal Range VNO, VNC, VCOM -40 to +85 0 V+V +25 4.58 On-Resistance RON V+ = 4.5V, VNO or VNC = 3.5V, ICOM = -10mA, Test Circuit 1 -40 to +85 8.5 +25 0.150.3 On-Resistance Match Between Channels RON V+ = 4.5V, VNO or VNC = 3.5V, ICOM = -10mA, Test Circuit 1 -40 to +85 0.4 +25 2.33.3 On-Resistance Flatness RFLAT(ON) V+ = 4.5V, VN

9、O or VNC = 1.0V, 2.0V, 3.5V, ICOM = -10mA, Test Circuit 1 -40 to +85 3.7 Source OFF Leakage Current INC(OFF), INO(OFF) V+ = 5.5V, VNO or VNC = 1.0V, 4.5V, VCOM = 4.5V, 1.0V -40 to +85 1 A Channel ON Leakage Current INC(ON), INO(ON), ICOM(ON) V+ = 5.5V, VCOM = 1.0V, 4.5V, VNO or VNC = 1.0V, 4.5V, or floating -40 to +85 1 A DIGITAL INPUTS Input High Voltage VINH -40 to +85 1.5 V Input Low Voltage VINL -40 to +85 0.6V Input Leakage Current IIN V+ = +5.5V, VIN = 0V or 5.5V -40 to +85 1 A DYNAMIC CHARACTERISTICS Turn-On Time tON VNO or VNC = 3.0V, VIH = 1.5V, VIL = 0V, RL = 300, CL = 35pF, Test Circuit 2 +25 20 ns Turn-Off Time tOFF VNO or VNC = 3.0V, VIH = 1.5V, VIL = 0V, RL = 300, CL = 35pF, Test Circuit 2 +25 15 ns Break-Before-Make Time Delay tD VNO1 or VNC1 = VNO2 or VNC2 = 3V, RL = 300, CL = 35pF, Test Circuit 3 +25 5 ns Skew tSKEW RS = 39, CL = 50pF, Test Circuit 4 +25 5 ns f = 10MH

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