MA AMAL/VI Quad SPST CMOS Analog Switches General Description Maxim's MAX332, DG202 and DG212 are normally open, quad single-pole-single-throw (SPST) analog switches. These CMOS switches can be continuously operated with power supplies ranging from +4.5V to +18V. Maxim guarantees that the MAX332 and DG202/212 will not latch up if their power supplies are disconnected with input signals still connected. The MAX332 and DG202/DG212 are similar to the DG201 and DG211 except for inverted control inputs. All devices have guaranteed break-before-make switching as well as essentially constant on resistance over the analog signal range. All switches conduct current in either direction and add no offset to the output signal. Compared to the original manufacturers products, Maxims MAX332 and DG202/DG212 consume very little power, making them ideally suited for portable applications. Maxim has also eliminated the need for the third logic power supply (V,), required when operating the original manufacturer's DG212, without sacrificing compatibility. Applications Analog Multiplexers Programmable Gain Amplifiers Communications Systems Sample/Holds Automatic Test Equipment PBX, PABX Typical Operating Circuit Skat ska * LI 18 an Vi 10Y omg 2 1 b> _| 3 MAKI 4-+- _ xa MAX332 ES -CE] pgeoo [HS] -15 Vour =) pao. = 3 (11 - L6 7 mew 12 CF] F] 20kD Programmable Gain Amplifier Note: *Pins 1, 8, 9 and 16 are logic control inputs. Features @ improved 2nd Source! (See pages 3 and 5 for MAXIM Advantage) @ Guaranteed +4.5V to +18V Operation @ No V, Supply Required + Non-Latching with Supplies Turned-off and Input Signals Present @ CMOS and TTL Logic Compatible # Monolithic, Low Power CMOS Design Ordering Information PART TEMP. RANGE PACKAGE MAX332MJE -55C to +125G =: 16 Lead CERDIP DG202C/D aC to +70C Dice DG202CJ 0C to +70C 16 Lead Plastic DIP DG202CSE 0C to +70C 16 Lead Small Outline DG202CK 0 to +70C 16 Lead CERDIP DG202BSE -25C to +85C 16 Lead Small Outline DG202BK -25C to +85C 16 Lead CERDIP DG202AK -85C to +125C =: 16 Lead CERDIP. DG212C/D 0C to +70C Dice DG212CJ 0C to +70C 16 Lead Plastic DIP DG212CSE 0C to +70C 16 Lead Small Outline Pin Configuration Top View VT ING 16] 1N2 0] i502 SQ] maxim 14} $2 ve (ay = MAX332 iz) y+ (SUBSTRATE) GNo [5 DG202 riz]NC* safe] OG212 ink Dat 0} 03 IN4 L8 r3yiN3 Logic SWITCH | 0 OFF 1 ON Note: *Pin 12 can be left open or connected to a logic supply voltage. MAXIM _ Maxim Integrated Products 1 Cail toll free 1-800-998-8800 for free samples or literature. ob 29DG/20eDG/clEXVNMAX332/DG202/DG212 Quad SPST CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS (DG212) VITO cece n een n rene erect eee e nn eeae 40V Storage Temperature ................-00 0200 ~65C to +125C Vin to Ground V,_ to Ground Vg Or Vp to V* Vs or Vp to V~ V* to Ground V~ to Ground Current, Any Terminal Except SorD.............0.. Continuous Current, S orD ....... cece cece eee Peak Current, S or D (Pulsed at Imsec, 10% duty cycle max) wee WOVE Operating Temperature ............ 0.0: c cece eee 0C to +70C Power Dissipation (Note 1) 16 Pin Plastic DIP (Note 2) 2.0... cece eee ee eee 470mW 16 Pin Small Outline (SE) (Note 3) ................0. 400mW Note 1: Device mounted with all leads soldered to PC board. ute oon Note 2: Derate 6.5mW/C above +25C. Note 3: Derate 7mW/C above +25C. oe. TOMA Stresses listed under "Absolute Maximum Ratings" may be applied (one at a time) to devices without resulting in permanent damage. These are stress ratings only, and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (DG212) (V* = +15V, V- = -15V, GND = OV, T, = +25C, unless otherwise noted) LIMITS PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS (Note 4) (Note 5) Analog Signal Range VaNALOG -15 15 Vv Drain-Source ON Resistance positon) | Vo = +10V, Vin = 2.4V, Ig = 1mA 115 175 Qa | Source OFF Leakage Current isco) | Vin = 0.8V Vs = 14M, Vp = =14V 0.01 5.0 oO Vg =-14V, Vp = 14V ~-5.0 -0.02 FE 2 | Drain OFF Leakage Current low | Viv 0.8v wS= 14M. Vo = 14V 0.01 5.0 nA Vg = -14V, Vp = 14V -5.0 -0.02 Drain ON Leakage Current } Vg = Vp = 14V, Vin = 2.4V O.1 5.0 (Note 6) B (on) ~ yoo - Vg = Vp = -14V, Vin = 2.4V -5.0 0.18 E Input Current With Input linea Vin = 2.4V 1.0 0.0004 2 Voltage High Vin = 15V 0.003 1.0 BA = | Input Current With Input _ Voltage Low TNL Vin = OV -1.0 -0.0004 Turn-ON Time ton See Switching Time 460 1000 Turn-OFE Ti torty Test Circuit 360 500 ns urn- ime = = = Cott Vg = 2V, RL = 1k9, C. = 35pF 250 oO ! ; = = = S| Source OFF Capacitance Cg (ott) | Ve = OV, Vin = OV, f = IMHz 5 s | Drain OFF Capacitance Cott) | Vo = OV, Vin = OV, f = IMHz 5 pF 2 Channel ON Capacitance Co.siony | Vo = Vs = 5V, Vin = OV, f = MHz 16 OFF Isolation (Note 7) OIRR 70 Crosstalk Vin = OV, Ry = 1k, C, = 15pF, 4B rossta| Veg = 1VRMS, f = 100kHz (Channel to Channel) CCRR s 90 > Positive Supply Current 0.35 0.48 e Negative Supply Current I~ Vin = OV and 2.4V 0.30 0.48 mA 5 {| Logic Supply Current Ih ! 0.5 1.2 Note 4: The algebraic convention whereby the most negative value is a minimum, and the most positive is a maximum, is used in this data sheet. Note 5: Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Note 6: Ip(on) is leakage from driver into ON switch, v Note 7: OFF Isolation = 20 log v , Vg = input to OFF switch, Vp = output. D The electrical characteristics above are a reproduction of a portion of Siliconix's copyrighted 1985 data book. This information does not constitute any representation by Maxim that Siliconix's products will perform in accordance with these specifications. The Electrical Characteristics Table along with descriptive excerpts from the original manufacturer's data sheet have been included in this data Sheet solely for comparative purposes. MAALYI@ Significantly Reduced Power Consumption @ Fault Protected MIAALWVI Quad SPST CMOS Analog Switches @ = Third (Logic) Supply Not Required ABSOLUTE MAXIMUM RATINGS (DG212): This device conforms to the Absolute Maximum Ratings on the adjacent page. ELECTRICAL CHARACTERISTICS (DG212): Specifications below satisfy or exceed all tested parameters on adjacent page. (V* = +15V, V~ = -15V, GND = OV, T, = +25C, unless otherwise noted) LIMITS PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS (Note 4) = (Note 5) Analog Signal Range VaNALOG -15 15 Vv Drain-Source ON Resistance Toston) | Vp = 210V, Vin = 2.4V, Ig = IMA 115 175 Q X | Source OFF Leakage Current Isto | Vin = 0.8V Vs = T4V, Vo = 14V or 50 e Vg = -14V, Vp = 14V -5.0 -0.02 = = =. | Drain OFF Leakage Current loco) | Vin = 0.8V Vs = TAN, Vo = 14V oor 50 nA Vg = -14V, Vp = 14V -5.0 -0.02 Drain ON Leakage Current | Vs = Vp = 14, Vin = 2.4V 04 5.0 (Note 6) B (on) va = Vg = Vp = -14V, Viy = 2.4V -5.0 -0.45 - | Input Current With Input Line Vin = 2.4V 71.0 0.0004 5 | Voltage High Vin = 15V 0.003 1.0 uA - Input Current With Input _ . Voltage Low LL Vin = OV -1.0 0.0004 Turn-ON Time ton See Switching Time 460 1000 qurn-OFF Ti tots Test Circuit 360 500 ns urn-' ime = = = ot Vg = 2V, Ry = 1k), C. = 35pF 450 2 Source OFF Capacitance Cg jor | Vs = OV. Vi = OV, f= IMHZ 5 S| Drain OFF Capacitance Corot) | Vo = OV, Vin = OV, f = IMHz 5 pF a Channel ON Capacitance Cossion | Vo = Vs = OV. Vin = 5, f = IMHz 16 OFF Isolation (Note 8) OIRR 70 S Kk Vin = OV, Ry = 1k, C, = 15pF, dB rossta Vg = 1VRMS, f = 100kHz (Channel to Channel) CCRR 8 90 Positive Supply Current r 0.02 0.1 zi Negative Supply Current Ir Vin = OV and 2.4V 0.00001 0.1 mA a Logic Supply Current IL 0.0 0.0 | Power Supply Range + + for Continuous Operation Vor +45 #18 v Note 8: Electrical characteristics, such as ON Resistance, will change when power supplies, other than 115V, are used. MAXAL/VI _3 ob29DG/c0cDd/cEEXVNMAX332/DG202/DG212 Quad SPST CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS (DG202) Voltages Referenced to V~ VT ccc eben cree ene eee e eee b ene nenaetens vee eee 25V -2V, to (Vt +2V) or 20mA, whichever occurs first Current, Any Terminal Except S orD ............ 0.0 cease 30mA Continuous Current, SorD ...... cc cece cece eee nee ees 20mA Peak Current, S or D (Pulsed at 1msec, 10% duty cycle max.) ............00. 70mA Operating Temperature DG202 (A Suffix) ....... 0. cece eee eae -55C to +125C (B Suffix) .. -25C to +85C (C Suffix)... cee eee eee eee 0C to +70C MAX332MJE ow. ee cece cee cee eens -55C to +125C Storage Temperature Power Dissipation (Note 2) 16 Pin CERDIP (Note 3) 16 Pin Plastic DIP (Note 4) 16 Pin Small Outline (SE) (Note 5) Note 1: Note 2: Note 3: Note 4: Note 5: Signals on Sy, Dy, or INx exceeding Vt or V- on Maxim's MAX332 and DG202 will be clamped by internal diodes, and are also internally current limited to 25mA. Device mounted with all leads soldered to PC board. Derate 12mW/C above +75C. Derate 6.5mW/C above +25C. Derate 7MW/C above +25C. Stresses listed under Absolute Maximum Ratings may be applied (one at a time) to devices without resulting in permanent damage. These are stress ratings only, and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (DG202) (V* = +15V, V- = -15V, GND = OV, T, = +25C, unless otherwise noted) LIMITS PARAMETER SYMBOL TEST CONDITIONS DG202A DG202B,C UNITS MIN TYP MAX | MIN TYP MAX (Note 6) (Note 7) (Note 6) (Note 7) Analog Signal Range VaANALOG -15 15 -15 15 v Renin Source ON tos con) | Vp = 10V, Vin = 2.4V, Ig = 1mA 115175 115 200 | 0 Mog = 14V, Vp = -14V 0.01 1.0 0.01 5.0 3 Curent reakage Iscom | Vin=08V 0 FS a 2 Ms=-14V,Vp=14V | -5.0 -0.02 = i Mg = 14V, Vp = -14V 0.01 1.0 0.01 5.0 a oan OFF Leakage Ip vot Viy = 0.8V s - D - nA M5 =-14V,Vp=14v | -6.0 -0.02 Drain ON Leakage | Vg = -14V, Vin = 2.4V 0.1 1.0 0.1 5.0 Current (Note 8) Pilon) V5 = 14V, Vin = 2.4 -1.0 -0.15 5.0 -015 | input Current with Vin=2.4V -1.0 -0.0004 -1.0 -0.0004 5 | Input Voltage High INH OT Viy = 18V 0.003 10 0.003 10 | J, z Input Current With _ Input Voltage Low lin | Vin = OV -1.0 -0.0004 -1.0 -0,0004 Turn-ON Time ton See Switching Time 480 600 480 600 ns Turn-OFF Time tort Test Circuit 370 450 370 450 Charge Injection Q C= T000PF: Ven = OV. 20 20 pc GEN = OQ oO | Source OFF = i Cg catty 5 5 = Capacitance Vg = OV, Vy = OV zZ Drain OFF Capacitance Co (ott) if = 140kHz 5 5 pF | Channel ON Co (on) =Ve= = Capacitance + Cg (on) Vp = Vs = OV, Vin = SV 16 6 OFF Isolation Vin = OV, Z, = 75kn. 70 70 Crosstalk - = aB (Channel to Channel) Vg = 2.0V, f = 100kHz 90 90 a > Positive Supply Current iM All Channels ON or OFF 0.9 2 0.9 2 mA B a Negative Supply Current r All Channels ON or OFF -1 -0.3 -1 -0.3 Note 6: The algebraic convention whereby the most negative value is a minimum, and the most positive is a maximum, is used in this data sheet. Note 7: Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Note 8 Ipjop) is leakage from driver into ON switch. The electrical characteristics above are a reproduction of a portion of Siliconixs copyrighted 1985 data book. This information does not constitute any representation by Maxim that Siliconix's products will perform in accordance with these specifications. The Electrical Characteristics Table along with descriptive excerpts from the original manufacturer's data sheet have been included in this data sheet solely for comparative purposes. 4 MAAXI/VIMAAIL/VI Quad SPST CMOS Analog Switches @ Significantly Reduced Power Consumption @ Lower Input Current Over Temperature @ No Input Current Spike ABSOLUTE MAXIMUM RATINGS (MAX332, DG202): This device conforms to the Absolute Maximum Ratings on the adjacent page. ELECTRICAL CHARACTERISTICS (MAX332, DG202): Specifications below satisfy or exceed all tested parameters on adjacent page. (Vt = +15V, V~ = -15V, GND = OV, T, = +25C, unless otherwise noted) LIMITS PARAMETER SYMBOL TEST CONDITIONS MAX332/DG202A DG202B,.C _JuNITS MIN TYP MAX | MIN TYP MAX {Note 6) (Note 7) (Note 6) (Note 7) Analog Signal Range VANALOG -15 15 -15 15 Vv Drain-Source ON - = = Flesistance (Note 9) tos con) | Vp = 210V, Viy = 2.4V, Is = 1mA 115 175 115 200] 2 =x Vy = 14V, Vp = -14V 0.01 1.0 0.01 5.0 3 pouros OFF Leakage Is cotn Vin = 0.8V s o E | Curren Vg=-14V, Vp=14v | -1.0 -0.02 5.0 -0.02 n Drain OFF Leakage Vg = 14, Vp = -14V 0.01 1.0 0.01 5.0 Current loton) | Vin = 0.8V nA urren Vg = -14V, Vp = 14V -10 -0.02 -.0 -0.02 Drain ON Leakage Vg = -14V, Vin = 2.4V or 10 01 50 Current (Note 8) P60) | Vp = 14V, Viy = 2.4 -1.0 -0.15 -6.0 -0.15 | Input Current with Vin = 24V -1.0 -0.0004 -1.0 -0.0004 > | Input Voltage High INT Vy = 15V 0.003 1.0 0.00340 | i, 2 - = Input Current With _ input Voltage Low line | Yin = OV -1.0 -0,0004 -1.0 -0,0004 Turn-ON Time ton See Switching Time 480 600 480 600 naan ns Turn-OFF Time totty Test Circuit 370 450 370 450 Charge Injection Q os TOOPF, cen = Ov. 20 20 pc cen = 00 oO : = | Source OFF 2 Capacitance Cs corti Vg = OV, Vin = OV $ 5 $ Drain OFF Capacitance Cp vott f = 140kHz 5 5 pF Channel ON Co (on) * =V.= = Capacitance on) | Vo = Vs = OV, Vi = BV 16 16 - OFF Isolation Vin = OV, 2, = 75k. 70 70 Crosstalk _ _ dB (Channel to Channel) Vg = 2.0V, f = 100kHz 90 90 > Positive Supply Current r All Channels ON or OFF 0.02 01 0,02 0.1 A 3 m a Negative Supply Current - All Channels ON or OFF -01 -0.01 -0.1 -0.01 3 | Power Supply R f a pply Range for + Continuous Operation Vor +45 418 | 245 18 v Note 6: The algebraic convention whereby the most negative value is a minimum, and the most positive is a maximum, is used in this data sheet. Note 7: Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Note 8: Ipjon) is leakage from driver into ON switch. Note 9: Electrical characteristics, such as ON Resistance, will change when power supplies other than +15V, are used. MAXIM 5 eb eDd/c0eDaG/ceexvnMAX332/DG202/DG212 Quad SPST CMOS Analog Switches ELECTRICAL CHARACTERISTICS (DG202) (Vt = +15V, V- = -15V, GND = OV, Ta = Full Operating Temperature Range) LIMITS | PARAMETER SYMBOL TEST CONDITIONS |__ DG202A DG202B,C Junits MIN TYP MAX| MIN TYP MAX (Note 6) (Note 7) (Note 6} (Note 7) _j Analog Signal Range VaNALOG ~15 15 ~15 15 Vv Drain-Source ON - - = Recistanes Toston) | Vor #10V, Viy=24VsIg= 1mA | 250 250 | 0 x | Source OFF Leakage 1 Va = 0.8V Vs = 14V, Vp = -14V 100 100 RB | Current S ton Vg=-14V,Vp=14v | -100 -100 = Drain OFF Leakage _ Vg = 14, Vp = -14V 100 100 Current Ip yor) | Vin = 0.8V nA urren Vg =-14V,Vp=14V | -100 7100 Drain ON Leakage I Vg = -14V, Vin = 2.4V 200 200 Current (Note 10) Pier) Vp = 14V, Vy = 24V -200 -200 Input Current With I Vin = 2.4V ~1.0 ~10 5 | input Voltage High INH Via = 15V -10 -10 3% IN pA = | Input Current With _ . . Input Voltage Low lina Vin = OV 10 10 Note 10: {p(on) is leakage from driver into ON switch. The electrical characteristics above are are representation by Maxim that Siliconixs pro production of a portion of Siliconix's copyrighted 1985 data book. This information does not constitute any ducts will perform in accordance with these specifications. The Electrical Characteristics Table along with descriptive excerpts from the original manufacturer's data sheet have been included in this data sheet solely for comparative purposes. Switch output waveform shown for Vs = constant with logic input waveform as shown. Note that Vs may be +ve or -ve as per switching times test circuit. Switching Time Test Circuit Vo is the steady state output with switch on. Feed- through via gate capacitance may result in spikes at leading and trailing edge of output waveform. LOGIC wweut 3 I+ 26ns 50" tr 20ns 0 Switch INPUT SWITCH QUTPUT LOGIC SW ON SWITCH (NPUT +BY ee L Vo = Vs -_ Ru + rosjon) & vt Oy Vs = +2 OY | 4 Ya Mt - { SWITCH QUTPUT RL Cy tka [* {REPEAT TEST FOR (W2, IN3 AND IN4) LOGIC Vo ag INPUT Vo al JS GNO $ r tatty ow -5V tattg bat Typical Rpson) vs. Power Supplies for Maxims MAX332, DG202/DG212 POWER SUPPLIES Rogion) AT ANALOG SIGNAL LEVEL -5V +5V -10V +104 -15V +15V +5V 3500. 3800 +10V 1650 2500 +15V 1250 16070 13601 1550) 6 MAXLWVIMAAL/VI Quad SPST CMOS Analog Switches ELECTRICAL CHARACTERISTICS (MAX332, DG202): (V* = +15V, V7 = -15V, GND = OV, T, = full operating temperature range) LIMITS PARAMETER SYMBOL TEST CONDITIONS MAX332/DG202A DG202B,C UNITS MIN TYP MAX | MIN TYP MAX {Note 6) (Note 7) (Note 6) (Note 7) Analog Signal Range VaNALOG -15 15 -15 15 Vv Drain-Source ON _ _ _ Resistance (Note 11) os ion) | Vp = 10V, Vin = 2.4V, Ig = 1MA 250 250 Qa x | Source OFF Leakage _ Vg = 14V, Vp = -14V 100 100 ole t Ig (ort) | Vin = 0.8V E urren Vg =-14V, Vp =14V | -100 ~100 z Drain OFF Leakage _ Vg = 14, Vp = -14V 100 100 C t Ip (off) Vin = 0.8V nA urren Vg =-14V, Vy=14v | -100 -100 Drain ON Leakage i Vg = -14V, Vin = 2.4V 200 200 Current (Note 10) Pion) V5 = 14, Vin = 2.4V =200 -200 - Input Current With | Vin = 2.4V -1.0 -1.0 5 Input Voltage High INA] Viy = 15V 1.0 10 | ua = | Input Current With _ Input Voltage Low ine Vin = OV -1.0 -1.0 Note 10: (p,on) iS leakage from driver into ON switch. Note 11: Electrical characteristics, such as ON Resistance, will change when power supplies other than +15V, are used. Protecting Against Fault Conditions Fault conditions occur when power supplies are turned off when input signals are still present or when over voltages occur at the inputs during normal operation. In either case, source-to-body diodes can be forward biased and conduct current from the 7 re] signal source. If this current is required to be kept to 7 a low (uA) levels then the addition of external protec- ingot 7] Maxim F waco tion diodes is recommended. ve rw" ie one AGI qq o -150 To provide protection for over-voltages up to 20V GI DG212 iz] above the supplies, a 1N4001 or 1N914 type diode oy ri] should be placed in series with the positive and 10 negative supplies as shown in Fig. 1. The addition of i 9 these diodes will reduce the analog signal range to 1 volt below the positive supply and 1 volt above the negative supply. Figure 1. Protection Against Fault Conditions MAXLVI 7 fbeDG/c0cDd/ceexvnMAX332/DG202/DG212 Quad SPST CMOS Analog Switches Chip Topography Package Information ok 0.150 - 0.158 0181-0205 0.228 - 0.244 (3.810 4.013) (4.597 - 5.207) (5.791 - 6.198) LEAD #1 t t \ 0.014 - 0.018 | 11050 gop (0356 - 0.487 (1.270) oats 0.385- 0.394 __, (0.381) (9.779 - 10.007) | { a y 5 . 0.014 - 0.022 3%6 0014 - 0.022, 0.063 - 0.069 (0.356 - 0.583) F1.600-~ 1.753} 007 - 0.009 0.004 - 0.008 | (0.178 - 0.229) (0.102 - 0.203) 16 Lead Smatl Outline (SE) Aya = 110C/W Ayc = 60C/W 0.780 [rasa mie] 0.030 - 0.110 _ 11785 0.250 + 0.005 et jn7e2 - 2.794) RAD 719.939) MAX (6350 = 0.1271 1.025 + 0015 ae 0.025. py Tess OMT O291 0.635) AO (0.635 = 0.387) 0300 - n320 igor MAX ~~ (0.635) {7-620 - 8.128) ans 0.040 typ 0.020 irz70) "| 0.200 - 0.320 t (1016) ins6) moe] fe 02080 * 0.005 0.125 yyy (7808 = 8126) 01130 + 1005 ne } freee ote [175 (2302 + 0.127) Vy Foto 0.160 F |e 0.009 - 0.015 jana MAX 0-10" 1020. iy FE ais (0.228 - 0.381] Try 0.008 - 0.012 (0.508) +l iat7ay MIN 0.020 - 0.070 - (0-203 - 0.305) 0018 + 0.00 0.325 22.025 (0.508 ~ 1.776) 0.018 + 0.002 (0457+ 0.076) 0100+ 0.010 0.100 + 0.010 (0.457 + 0.051) ee (2540 + 0.254) 8.255 hai [2540 = 0.254) (8779 + 0.635) 16 Lead CERDIP 16 Lead Plastic DIP Oya = 100C/W Aja = 135C/W jc = 65C/W Oj = 60C/W 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. 8 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 1995 Maxim Integrated Products Printed USA MAXIMA js a registered trademark of Maxim Integrated Products.