19-1513; Rev 0; 7/99 1.25Ω, Dual SPST, CMOS Analog Switches Applications Reed Relay Replacement Data Acquisition Systems Test Equipment Sample-and-Hold Circuits Communication Systems PBX, PABX Systems Features ♦ Low On-Resistance (1.25Ω max) ♦ Guaranteed RON Match Between Channels (0.3Ω max) ♦ Guaranteed RON Flatness Over Specified Signal Range (0.3Ω max) ♦ Rail-to-Rail Signal Handling ♦ Guaranteed Break-Before-Make (MAX4700) ♦ +4.5V to +36V Single-Supply Operation ±4.5V to ±20V Dual-Supply Operation ♦ TTL/CMOS-Compatible Control Inputs ♦ >2kV ESD Protection per Method 3015.7 Ordering Information PART TEMP. RANGE MAX4680CAE 0°C to +70°C MAX4680CWE MAX4680CPE MAX4680EAE MAX4680EWE MAX4680EPE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP Ordering Information continued at end of data sheet. Pin Configurations/Functional Diagrams/Truth Tables TOP VIEW N.C. 1 16 NC1 IN1 2 15 N.C. N.C. 3 14 COM1 V- 4 GND 5 MAX4680 N.C. 6 IN2 7 N.C. 8 N.C. 1 16 N01 IN1 2 15 N.C. N.C. 3 13 V+ V- 4 12 VL GND 5 11 COM2 N.C. 6 10 N.C. IN2 7 NC2 N.C. 8 9 14 COM1 MAX4690 SSOP/SO/DIP MAX4680 LOGIC SWITCH 0 ON 1 OFF MAX4690 LOGIC SWITCH 0 OFF 1 ON N.C. = NOT INTERNALLY CONNECTED 16 N01 IN1 2 15 N.C. N.C. 3 13 V+ V- 4 12 VL GND 5 11 COM2 N.C. 6 10 N.C. IN2 7 NO2 N.C. 8 9 SSOP/SO/DIP N.C. 1 14 COM1 13 V+ MAX4700 12 VL 11 COM2 10 N.C. 9 NC1 SSOP/SO/DIP LOGIC 0 1 MAX4700 SWITCH 1 SWITCH 2 OFF ON ON OFF SWITCHES SHOWN FOR LOGIC “0” INPUT Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. MAX4680/MAX4690/MAX4700 General Description The MAX4680/MAX4690/MAX4700 dual analog switches feature low on-resistance of 1.25Ω max. On-resistance is matched between switches to 0.3Ω max and is flat (0.3Ω max) over the specified signal range. Each switch can handle Rail-to-Rail® analog signals. Off-leakage current is only 5nA max at +85°C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays. The MAX4680 has two NC (normally closed) switches, and the MAX4690 has two NO (normally open) switches. The MAX4700 has one NC and one NO switch and features guaranteed break-before-make switching. These devices operate from a +4.5V to +36V single supply or from ±4.5V to ±20V dual supplies. A separate logic supply pin guarantees TTL/CMOS-logic compatibility while operating across the entire supply voltage range. MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS V+ to GND ..............................................................-0.3V to +44V V- to GND ...............................................................+0.3V to -44V V+ to V-...................................................................-0.3V to +44V VL to GND.................................................... -0.3V to (V+ + 0.3V) All Other Pins to GND (Note 1) ........... (V- - 0.3V) to (V+ + 0.3V) Continuous Current (COM_, NO_, NC_) ....................... ±200mA Peak Current (COM_, NO_, NC_) (pulsed at 1ms, 10% duty cycle) .............................. ±300mA Continuous Power Dissipation (TA = +70°C) SSOP (derate 7.1mW/°C above +70°C) ......................571mW Wide SO (derate 9.52mW/°C above +70°C) ...............762mW Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW Operating Temperature Ranges MAX4_ _0C_E ....................................................0°C to +70°C MAX4_ _0E_E ..................................................-40°C to +85°C Storage Temperature Range ........................... -65°C to +150°C Lead Temperature (soldering, 10sec) ............................+300°C Note 1: Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current rating. 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. ELECTRICAL CHARACTERISTICS—Dual Supplies (V+ = +15V, V- = -15V, VL = +5V, VIN_H = +2.4V, VIN_L = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range (Note 3) VCOM_, VNO_, VNC_ COM_ to NO_ or NC_ On-Resistance RON COM_ to NO_ or NC_ On-Resistance Match Between Channels (Notes 3, 4) ∆RON VTA = +25°C ICOM_ = 10mA, VNO_ or VNC_ = ±10V, TA = TMIN to TMAX ICOM_ = 10mA, VNO_ or VNC_= ±10V 0.9 1.5 TA = +25°C 0.09 RFLAT(ON) Off-Leakage Current (NO_ or NC_) (Note 6) INO_, INC_ VCOM_ = ±10V, – VNO_ or VNC_ = +10V TA = TMIN to TMAX COM_ Off-Leakage Current (Note 6) ICOM_(OFF) VCOM_ = ±10V, – VNO_ or VNC_ = +10V TA = +25°C -0.5 TA = TMIN to TMAX -2.5 COM_ On-Leakage Current (Note 6) ICOM_(ON) VCOM_ = ±10V, VNO_ or VNC_= ±10V or floating 0.06 TA = +25°C Ω 0.3 Ω 0.5 TA = TMIN to TMAX TA = +25°C 0.3 Ω 0.5 TA = TMIN to TMAX COM_ to NO_ or NC_ On-Resistance Flatness (Notes 3, 5) ICOM_ = 10mA; VNO_ or VNC_ = -5V, 0, 5V 1.25 -0.5 0.01 -5 TA = +25°C -1 TA = TMIN to TMAX -20 0.5 5 0.01 0.5 2.5 0.01 nA nA 1 nA 20 LOGIC INPUT Input Current with Input Voltage High IIN_H IN_ = 2.4V, all others = 0.8V -0.5 0.001 0.5 µA Input Current with Input Voltage Low 2 IIN_L IN_ = 0.8V, all others = 2.4V -0.5 0.001 _______________________________________________________________________________________ 0.5 1.25Ω, Dual SPST, CMOS Analog Switches (V+ = +15V, V- = -15V, VL = +5V, VIN_H = +2.4V, VIN_L = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL Logic Input Voltage High VIN_H Logic Input Voltage Low VIN_L CONDITIONS MIN TYP MAX 2.4 UNITS V 0.8 V ±20.0 V POWER SUPPLY Power-Supply Range ±4.5 Positive Supply Current I+ VIN_ = 0 or 5V Negative Supply Current I- VIN_ = 0 or 5V Logic Supply Current IL VIN_ = 0 or 5V IGND VIN_ = 0 or 5V Ground Current TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX -0.5 0.01 -5 -0.5 5 0.01 -5 -0.5 0.5 5 0.01 -5 -0.5 0.5 0.5 5 0.01 -5 0.5 5 µA µA µA µA SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON VCOM_ = ±10V, Figure 2 TA = +25°C Turn-Off Time tOFF VCOM_ = ±10V, Figure 2 TA = +25°C Break-Before-Make Time (MAX4700 only) Charge Injection tOPEN Q 130 400 TA = TMIN to TMAX 90 175 300 TA = TMIN to TMAX VCOM_ = ±10V, Figure 3, TA = +25°C 275 5 ns ns 30 ns CL = 1.0nF, VGEN = 0, RGEN = 0, Figure 4 550 pC Off-Isolation (Note 7) VISO RL = 50Ω, CL = 5pF, f = 1MHz, Figure 5 -53 dB Crosstalk (Note 8) VCT RL = 50Ω, CL = 5pF, f = 1MHz, Figure 6 -65 dB NC_ or NO_ Capacitance COFF f = 1MHz, Figure 7 115 pF COM Off-Capacitance CCOM f = 1MHz, Figure 7 115 pF On-Capacitance CCOM f = 1MHz, Figure 8 520 pF _______________________________________________________________________________________ 3 MAX4680/MAX4690/MAX4700 ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches ELECTRICAL CHARACTERISTICS–Single Supply (V+ = +12V, V- = 0, VL = +5V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range (Note 3) VCOM_, VNO_, VNC_ COM_ to NO_ or NC_ On-Resistance RON COM_ to NO_ or NC_ On-Resistance Match Between Channels (Notes 3, 4) ∆RON COM_ to NO_ or NC_ On-Resistance Flatness (Notes 3, 5) RFLAT(ON) Off-Leakage Current (NO_ or NC_) (Notes 6, 9) INO_, INC_ COM_ Off-Leakage Current (Notes 6, 9) ICOM_(OFF) COM_ On-Leakage Current (Notes 6, 9) ICOM_(ON) GND ICOM_ = 10mA, VNO_ or VNC_ = 10V ICOM_ = 10mA, VNO_ or VNC_ = 10V ICOM_ = 10mA; VNO_ or VNC_ = 3V, 6V, 9V VCOM_ = 1V, 10V; VNO_ or VNC_ = 10V, 1V VNO_ or VNC_ = 10V, 1V; VCOM_ = 1V, 10V TA = +25°C 1.6 TA = TMIN to TMAX Ω 3.5 0.1 TA = +25°C TA = TMIN to TMAX 0.4 Ω 0.5 0.2 TA = +25°C TA = TMIN to TMAX TA = +25°C 3 0.4 Ω 0.5 -0.5 0.01 0.5 nA TA = TMIN to TMAX TA = +25°C -5 -0.5 5 0.01 0.5 nA TA = TMIN to TMAX -5 VCOM_ = 1V, 10V; TA = +25°C VNO_ or VNC_ = 1V, 10V, TA = TMIN to TMAX or floating -1 -20 5 0.02 1 nA 20 LOGIC INPUT Input Current with Input Voltage High IIN_H IN_ = 2.4V, all others = 0.8V -0.5 0.001 0.5 µA Input Current with Input Voltage Low IIN_L IN_ = 0.8V, all others = 2.4V -0.5 0.001 0.5 µA Logic Input Voltage High VIN_H Logic Input Voltage Low VIN_L 2.4 V 0.8 V +36.0 V POWER SUPPLY Power-Supply Range +4.5 Positive Supply Current I+ VIN_ = 0 or 5V Logic Supply Current IL VIN_ = 0 or 5V IGND VIN_ = 0 or 5V Ground Current 4 TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX -0.5 0.001 5 -0.5 5 0.001 5 -0.5 0.5 0.5 5 0.001 5 _______________________________________________________________________________________ 0.5 5 µA µA µA 1.25Ω, Dual SPST, CMOS Analog Switches (V+ = +12V, V- = 0, VL = +5V, VIN_H = 2.4V, VIN_L = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SWITCH DYNAMIC CHARACTERISTICS Turn-On Time (Note 3) tON VCOM_ = 10V, Figure 2 TA = +25°C Turn-Off Time (Note 3) tOFF VCOM_ = 10V, Figure 2 TA = +25°C Break-Before-Make Time (Note 3) tOPEN Charge Injection VCT 400 ns 500 100 TA = TMIN to TMAX 250 ns 350 VCOM_ = 10V, Figure 3, TA = +25°C Q Crosstalk (Note 8) 225 TA = TMIN to TMAX 5 125 ns CL = 1.0nF, VGEN = 0, RGEN = 0, Figure 4 -60 pC RL = 50Ω, CL = 5pF, f = 1MHz, Figure 6 -65 dB NC_ or NO_ Capacitance COFF f = 1MHz, Figure 7 175 pF COM Off-Capacitance CCOM f = 1MHz, Figure 7 175 pF On-Capacitance CCOM f = 1MHz, Figure 8 275 pF Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet. Note 3: Guaranteed by design. Note 4: ∆RON = RON(MAX) - RON(MIN). Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. Note 6: Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at +25°C. Note 7: Off-isolation = 20log10 [VCOM / (VNC or VNO)], VCOM = output, VNC or VNO = input to off switch. Note 8: Between any two switches. Note 9: Leakage testing at single supply is guaranteed by testing with dual supplies. Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) 2.0 V+, V- = ±15V 1.1 TA = +85°C ON-RESISTANCE vs. VCOM (SINGLE SUPPLY) 5 V- = GND V+ = +5V 4 1.0 V+, V- = ±15V 1.0 0.9 RON (Ω) RON (Ω) 1.5 0.8 0.6 0.5 V+, V- = ±20V 0.5 3 V+ = +12V 2 TA = +25°C 0.7 MAX4680 TOC03 V+, V- = ±5V RON (Ω) 1.2 MAX4680 TOC01 2.5 ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) MAX4680 TOC02 ON-RESISTANCE vs. VCOM (DUAL SUPPLIES) 1 TA = -40°C V+ = +24V 0 0 0.4 -20 -16 -12 -8 -4 0 4 VCOM (V) 8 12 16 20 -15 -12 -9 -6 -3 0 3 VCOM (V) 6 9 12 15 0 2 4 6 8 10 12 14 16 18 20 22 24 VCOM (V) _______________________________________________________________________________________ 5 MAX4680/MAX4690/MAX4700 ELECTRICAL CHARACTERISTICS—Single Supply (continued) Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY) V+ = +15V V- = -15V 600 1 TA = +25°C 1.00 TA = -40°C 400 ON-LEAKAGE 0.1 0 -200 0.01 0.50 V+ = +12V V- = GND 0.25 -400 0 1 2 3 4 V+ = +12V V- = GND OFF-LEAKAGE 0.75 0 V+ = +15V V- = -15V 200 Q (pC) 1.25 LEAKAGE (nA) 1.50 5 6 7 8 0.001 -40 9 10 11 12 -600 -20 VCOM (V) 0 20 40 60 80 -15 -5 V+ = +15V V- = -15V 1000 -10 LOSS (dB) I- 1 MAX4680 TOC 08 0 -40 -180 -50 -270 OFF-ISOLATION -60 -90 0.001 -20 0 20 40 60 TEMPERATURE (°C) 80 100 -100 0.01 -360 V+ = +15V V- = -15V INPUT = 0dBm 50Ω IN AND OUT -80 0.01 180 -90 ON-PHASE -70 0.1 -40 10 90 ON-RESPONSE -20 -30 I+ 5 FREQUENCY RESPONSE 0 100 10 0 VCOM (V) MAX4680 TOC07 10,000 6 -10 TEMPERATURE (°C) POWER-SUPPLY CURRENT vs. TEMPERATURE I+, I- (nA) -20 100 0.1 1 10 FREQUENCY (MHz) _______________________________________________________________________________________ -450 -540 -630 -720 100 PHASE (degrees) 1.75 CHARGE INJECTION vs. VCOM 800 MAX4680-06 10 MAX4680 TOC05 TA = +85°C 2.00 ON/OFF-LEAKAGE vs. TEMPERATURE MAX4680 TOC04 2.25 RON (Ω) MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches 15 20 1.25Ω, Dual SPST, CMOS Analog Switches PIN NAME FUNCTION MAX4680 MAX4690 MAX4700 1, 3, 6, 8, 10, 15 1, 3, 6, 8, 10, 15 1, 3, 6, 8, 10, 15 N.C. 2, 7 2, 7 2, 7 IN1, IN2 4 4 4 V- 5 5 5 GND 9, 16 – – NC2, NC1 11, 14 11, 14 11, 14 COM2, COM1 12 12 12 VL Logic Supply Input 13 13 13 V+ Positive Analog Supply Input – 9, 16 – NO2, NO1 Analog Switch Normally Open Terminals – – 9 NC1 Analog Switch Normally Closed Terminal – – 16 NO1 Analog Switch Normally Open Terminal No connection. Not internally connected. Connect to GND or lowimpedance point to improve on/off-isolation. Logic-Control Digital Inputs Negative Analog Supply Voltage Input. Connect to GND for singlesupply operation. Ground Analog Switch Normally Closed Terminals Analog Switch Common Terminals _______________________________________________________________________________________ 7 MAX4680/MAX4690/MAX4700 Pin Description MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches ___________Applications Information +15V Overvoltage Protection D1 Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, NO, or COM. If power-supply sequencing is not possible, add two small signal diodes (D1, D2) in series with the supply pins and a Schottky diode between V+ and VL for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to one diode drop below V+ and one diode drop above V-, but does not affect the devices’ low switch resistance and low-leakage characteristics. Device operation is unchanged, and the difference between V+ and Vshould not exceed 44V. MAX4680 MAX4690 MAX4700 VL V+ * * * * NO_ COM_ VD2 -15V * INTERNAL PROTECTION DIODES Figure 1. Overvoltage Protection Using External Blocking Diodes +5V SWITCH V COM_ INPUT +15V VL COM_ SWITCH OUTPUT V+ NO_ VO OR NC_ RL 100Ω IN_ LOGIC INPUT MAX4680 MAX4690 MAX4700 GND LOGIC INPUT 0 -15V ( ) 50% 0 CL 35pF t OFF VO V- REPEAT TEST FOR EACH SWITCH. FOR LOAD CONDITIONS, SEE Electrical Characteristics. CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VO = VCOM RL + RON t r < 20ns t f < 20ns +3V SWITCH OUTPUT 0.9V0 0 t ON LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. Figure 2. Switching-Time Test Circuit 8 0.9V0 _______________________________________________________________________________________ 1.25Ω, Dual SPST, CMOS Analog Switches VCOM1 VCOM2 V+ COM1 LOGIC INPUT VOUT2 RL2 IN_ RL1 0V CL1 SWITCH OUTPUT 1 (VOUT1) CL2 0.9 · V0UT1 0V SWITCH OUTPUT 2 (VOUT2) V- GND 50% VOUT1 NC COM2 +3V LOGIC INPUT NO -15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. MAX4680/MAX4690/MAX4700 +15V MAX4700 0.9 · VOUT2 0V RL = 100Ω CL = 35pF tD tD Figure 3. Break-Before-Make Interval (MAX4700 only) MAX4680 MAX4690 MAX4700 RGEN +5V +15V VL V+ ∆VO VO COM_ NC_ OR NO_ VO VIN CL V GEN GND IN OFF V- -15V VIN = +3V VIN OFF ON ON OFF OFF Q = (∆V O )(C L ) VIN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. Figure 4. Charge-Injection Test Circuit _______________________________________________________________________________________ 9 MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches +15V SIGNAL GENERATOR 0dBm MAX4680 MAX4690 MAX4700 +5V V+ SIGNAL GENERATOR 0dBm VL COM_ IN_ ANALYZER 0 OR +3.0V GND +5V V+ VL COM1 MAX4680 MAX4690 MAX4700 N_1 0 OR +3.0V COM2 N_2 GND V- 50Ω IN2 IN1 0 OR +3.0V ANALYZER NC_ OR NO_ +15V NC V- RL RL -15V -15V Figure 5. Off-Isolation Test Circuit +15V V+ COM_ Figure 6. Crosstalk Test Circuit MAX4680 MAX4690 MAX4700 +5V +15V V+ COM_ VL MAX4680 MAX4690 MAX4700 +5V VL CAPACITANCE METER IN_ CAPACITANCE METER GND V- -15V Figure 7. Switch Off-Capacitance Test Circuit 10 f = 1MHz NC_ OR NO_ NC_ OR NO_ f = 1MHz IN_ 0 OR +3.0V GND V- -15V Figure 8. Switch On-Capacitance Test Circuit ______________________________________________________________________________________ 0 OR +3.0V 1.25Ω, Dual SPST, CMOS Analog Switches PART TEMP. RANGE MAX4690CAE 0°C to +70°C MAX4690CWE MAX4690CPE MAX4690EAE MAX4690EWE MAX4690EPE MAX4700CAE MAX4700CWE MAX4700CPE MAX4700EAE MAX4700EWE MAX4700EPE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE ___________________Chip Information TRANSISTOR COUNT: 108 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP 16 SSOP 16 Wide SO 16 Plastic DIP SSOP.EPS Package Information ______________________________________________________________________________________ 11 MAX4680/MAX4690/MAX4700 Ordering Information (continued) 1.25Ω, Dual SPST, CMOS Analog Switches SOICW.EPS MAX4680/MAX4690/MAX4700 Package Information (continued) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.