19-3519; Rev 0; 3/91 8-Channel Latchable Multiplexers ________________________Applications Avionics and Military Systems Communication Systems Microprocessor-Controlled Systems Audio-Signal Multiplexing __________Typical Operating Circuit ♦ Break-Before-Make Input Switches ♦ TTL and CMOS Logic Compatible ♦ Microprocessor-Bus Compatible ♦ rDS(ON) < 400Ω ♦ Pin and Electrically Compatible with the IndustryStandard DG528/DG529 and ADG528/ADG529 ______________Ordering Information PART TEMP. RANGE 0°C to +70°C PIN-PACKAGE 18 Plastic DIP _________________Pin Configurations TOP VIEW -5V IN1A IN1B IN2B ♦ On-Board Address Latches DG528CWN 0°C to +70°C 18 Wide SO DG528CK 0°C to +70°C 18 CERDIP DG528C/D 0°C to +70°C Dice* DG528DJ -40°C to +85°C 18 Plastic DIP DG528DN -40°C to +85°C 20 PLCC DG528EWN -40°C to +85°C 18 Wide SO DG528DK -40°C to +85°C 18 CERDIP DG528AZ -55°C to +125°C 20 LCC** DG528AK -55°C to +125°C 18 CERDIP** Ordering Information continued at end of data sheet. * Contact factory for dice specifications. ** Contact factory for availability and processing to MIL-STD-883. Automatic Test Equipment OUTA IN2A ♦ Low-Power, Monolithic CMOS Design DG528CJ Data-Acquisition Systems +5V ____________________________Features DG529 MAX133 OUTB µP INTERFACE WR 1 18 RS A0 2 17 A1 EN 3 16 A2 V- 4 15 GND S1 5 DG528 14 V+ S2 6 13 S5 IN3B S3 7 12 S6 IN4A S4 8 11 S7 D 9 10 S8 IN3A IN4B WR RS A0 A1 MUX AND A/D CONTROL DIFFERENTIAL INPUT FOR DATA-ACQUISITION SYSTEMS DIP/SO Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. 1 DG528/DG529 _______________General Description Maxim’s DG528/DG529 are monolithic, 8-channel, CMOS multiplexers with on-board address and control latches that simplify design and reduce board space in microprocessor-based applications. The DG528 is a single-ended, 1-of-8 multiplexer, while the DG529 is a differential, 2-of-8 multiplexer. These devices can operate as multiplexers or demultiplexers. The DG528/DG529 have break-before-make switching to prevent momentary shorting of the input signals. Each device operates with dual supplies (±4.5V to ±20V) or a single supply (+5V to +30V). All logic inputs are TTL and CMOS compatible. The Maxim DG528/DG529 are pin and electrically compatible with the industry-standard DG528/DG529. DG528/DG529 8-Channel Latchable Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+ ....................................................................................+44V GND .................................................................................+25V Digital Inputs VS, VD .................................................V- -2V to V+ +2V or 20mA, whichever occurs first. Current (any terminal, except S or D) .................................30mA Continuous Current, S or D Peak Current, S or D ...........................................................20mA (pulsed at 1ms, 10% duty cycle max) ............................50mA Continuous Power Dissipation (TA = +70°C) (Note 1) 18-Pin Plastic DIP (derate 11.11mW/°C above +70°C)...889mW 18-Pin Wide SO (derate 9.52mW/°C above +70°C) ....762mW 18-Pin CERDIP (derate 10.53mW/°C above +70°C)....842mW 20-Pin PLCC (derate 10.00mW/°C above +70°C) .......800mW 20-Pin LCC (derate 9.09mW/°C above +70°C) ...........727mW Operating Temperature Ranges DG52_C_ ............................................................0°C to +70°C DG52_D_/E_ ....................................................-40°C to +85°C DG52_A_ .......................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C Note 1: All leads are soldered or welded to PC board. 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 (V+ = 15V, V- = -15V, VEN = 2.4V, WR = 0V, RS = 2.4V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN DG52_A DG52_C/D/E UNITS TYP MAX MIN TYP MAX SWITCH Analog-Signal Range Drain-Source On-Resistance VANALOG rDS(ON) (Note 2) -15 VD = ±10V, VAL = 0.8V, IS = -200µA, VAH = 2.4 (Note 3) Greatest Change in DrainSource On-Resistance ∆rDS(ON) -10V < VS < 10V Between Channels Source-Off Leakage Current Drain-Off Leakage Current Drain-On Leakage Current (Notes 3, 4) 15 270 -15 400 15 270 450 500 500 6 6 % TA = +25°C -1 -0.005 1 -5 -0.005 5 TA = TMAX -50 -0.005 50 -50 -0.005 50 TA = +25°C -10 -0.015 10 -20 -0.015 20 TA = TMAX -200 -0.015 200 -200 -0.015 200 TA = +25°C -10 -0.008 10 -20 -0.008 20 TA = TMAX -100 -0.008 100 -100 -0.008 100 TA = +25°C -10 -0.03 VAH = 2.4V, DG528 TA = TMAX -200 -0.03 VS = VD = ±10V, VAL = 0.8V, TA = +25°C -10 -0.015 DG529 VEN = 2.4V TA = TMAX -100 -0.015 10 -20 -0.03 20 200 -200 -0.03 200 10 -20 -0.015 20 100 -100 -0.015 100 VEN = 0V, VS = ±10V, VD = ±10V ID(OFF) VEN = 0V, VS = ±10V, VD = ±10V DG528 DG529 V Ω TA = TMAX TA = +25°C IS(OFF) ID(ON) TA = +25°C, TMIN nA nA nA INPUT Address Input Current, Input Voltage High VA = 2.4V IAH VA = 15V Address Input Current, Input Voltage Low 2 IAL VA = RS = WR = 0V, VEN = 0V or 2.4V TA = +25°C -1 TA = TMAX -30 -0.002 TA = +25°C -1 -0.006 TA = +25°C -1 -0.002 TA = TMAX -30 -0.01 1 -1 -0.002 1 -1 -0.006 1 -1 -0.002 -30 -0.01 -30 TA = TMAX 1 30 1 µA 30 _______________________________________________________________________________________ 1 µA 8-Channel Latchable Multiplexers (V+ = 15V, V- = -15V, VEN = 2.4V, WR = 0V, RS = 2.4V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN DG52_A DG52_C/D/E UNITS TYP MAX MIN TYP MAX DYNAMIC Switching Time of Multiplexer tTRANS Figure 1 TA = +25°C 0.4 Break-Before-Make Interval tOPEN Figure 2 TA = +25°C 0.2 1 1.5 0.2 µs µs Enable, Write Turn-On Time tON(EN, WR) Figures 3, 4 TA = +25°C 1.0 1.5 1.5 µs Enable, Reset Turn-Off Time tOFF(EN, RS) Figures 3, 5 TA = +25°C 0.4 1 1.5 µs Charge Injection Q Figure 6 TA = +25°C 4 4 pC 68 68 dB Off Isolation OIRR VEN = 0V, RL = 1kΩ, CL = 15pF, TA = +25°C VS = 7VRMS, f = 500kHz Logic-Input Capacitance CIN f = 1MHz TA = +25°C 2.5 2.5 pF Source-Off Capacitance CS(OFF) VEN = 0V, f = 140kHz, VS = 0V TA = +25°C 5 5 pF 25 25 CD(OFF) VEN = 0V, f = 140kHz, VS = 0V DG528 TA = +25°C Drain-Off Capacitance DG529 TA = +25°C 12 12 pF SUPPLY Positive Supply Current I+ VEN = VAH = 0V TA = +25°C Negative Supply Current I- VEN = VAH = 0V TA = +25°C 0.003 2.5 0.003 2.5 mA -1.5 0.01 -1.5 0.01 mA MINIMUM INPUT TIMING WR Pulse Width tWW Figure 7 300 150 300 15 ns AX, EN Data Valid to WR tDW (Stabilization Time) Figure 7 180 120 180 12 ns AX, EN Data Valid after WR tWD (Hold Time) Figure 7 30 10 30 10 ns RS Pulse Width tRS Figure 7; VS = 5V (Note 5) 500 150 500 150 ns Note 2: Note 3: Note 4: Note 5: Guaranteed by design. Sequence each switch on. ID(ON) is leakage from driver into on switch. Reset pulse period must be at least 50µs during or after power-on. _______________________________________________________________________________________ 3 DG528/DG529 ELECTRICAL CHARACTERISTICS DG528/DG529 8-Channel Latchable Multiplexers +15V +2.4V V+ EN RS LOGIC INPUT tr < 20ns tf < 20ns +3V A0 A1 A2 GND LOGIC INPUT 50% DG528 IN1 IN2 TO IN7 ±10V IN8 ±10V OUT V- WR VO 35pF 1M 50Ω 0 SWITCH OUTPUT -15V SWITCH OUTPUT VO VIN1 0.8VIN1 +15V +2.4V 0 0.8VIN8 VIN8 tTRANSITION IN1 ON IN1B IN1A TO IN4A OUTA, IN2B TO IN3B IN4B tTRANSITION IN8 ON A0 A1 GND LOGIC INPUT DG529 V+ EN RS ±10V ±10V SWITCH OUTPUT OUTB V- WR VOB 35pF 1M 50Ω -15V Figure 1. Transition-Time Test Circuits LOGIC INPUT tr < 20ns tf < 20ns +3V +3V 50% +15V +2.4V +1.5V +1.5V EN RS 0 0V DG529 V+ IN_ AND OUTA +5V SWITCH OUTPUT VIN SWITCH OUTPUT VO 80% A0, A1 (A2) LOGIC INPUT 0V GND WR OUTB 1k 50Ω tOPEN -15V Figure 2. Open-Time (B.B.M.) Interval Test Circuit 4 VO V- _______________________________________________________________________________________ 35pF 8-Channel Latchable Multiplexers LOGIC INPUT tr < 20ns tf < 20ns RS V+ EN 50Ω +3V 50% DG528 IN1 SWITCH OUTPUT OUT V- VO 35pF 1k 0 0 0.1 VO -5V IN2 TO IN8 A0 A1 A2 GND WR tON(EN) SWITCH OUTPUT VO +15V tOFF(EN) -15V 0.1 VO +2.4V 0.9 VO VO VIN1 DG528/DG529 LOGIC INPUT +2.4V +15V EN 50Ω DG529 V+ IN1B RS LOGIC INPUT -5V IN1A TO IN4A OUTA A0 IN2B, IN3B, IN4B SWITCH OUTPUT A1 OUTB OUT GND WR V- VOB 35pF 1k -15V Figure 3. Enable tON/tOFF Time Test Circuit +15V +2.4V DG529 +3V WR +1.5V 0 A0, A1 (A2) tON(WR) SWITCH OUTPUT VO V+ EN 50% LOGIC INPUT 0.2 VO 0 DEVICE MUST BE RESET PRIOR TO APPLYING WR PULSE RS WR GND IN1 OR IN1B +5V SWITCH OUTPUT REMAINING SWITCHES OUTB OUT VO V- RS 1k 35pF WR -15V Figure 4. Write Turn-On Time tON(WR) Test Circuit _______________________________________________________________________________________ 5 DG528/DG529 8-Channel Latchable Multiplexers DG528* +15V +2.4V +3V +1.5V RS V+ EN 50% 0 A0, A1 (A2) +5V SWITCH OUTPUT REMAINING SWITCHES tOFF(RS) SWITCH OUTPUT VO IN1 OR IN1B 0 0.8 VO OUTB OUT RS LOGIC INPUT VO GND WR V35pF 1k -15V * AS SHOWN Figure 5. Reset Turn-Off Time tOFF(RS) Test Circuit +15V DG528* V+ A0, A1 (A2) EN RS S_ VO VGEN ∆VO RGEN D +2.4V VO EN GND WR V- ∆VO IS THE MEASURE OF VOLTAGE ERROR DUE TO CHARGE INJECTION. THE CHARGE INJECTION IN COULOMBS IS Q = CL X ∆VO. CL = 1000pF -15V * AS SHOWN Figure 6. Charge-Injection Test Circuit +3V +3V +1.5V WR 0 0 tWW tDW +3V EN, A0, A1, (A2) 0 +1.5V RS tRS tWD +2.0V +0.8V tOFF(RS) VO 0 SWITCH OUTPUT Figure 7. Typical Timing Diagrams for DG528/DG529 6 _______________________________________________________________________________________ 0.8 VO 8-Channel Latchable Multiplexers A2 A1 A0 EN WR RS Table 2. DG529 Logic States ON SWITCH Latching X X X X 1 Maintains previous switch condition A0 EN WR RS ON SWITCH X X X 1 Maintains previous switch condition X X X 0 None (latches cleared) 0 0 0 0 0 1 1 1 1 1 None 1 2 3 4 Reset X X X X 0 None (latches cleared) Transparent Operation X 0 0 0 0 1 1 1 1 A1 Latching Reset X DG528/DG529 Table 1. DG528 Logic States X 0 0 1 1 0 0 1 1 X 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 X Transparent Operation 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 None 1 2 3 4 5 6 7 8 _______________Detailed Description The internal structures of the DG528/DG529 include translators for the A2/A1/A0/EN/WR/RS digital inputs, latches, and a decode section for channel selection (Truth Tables). The gate structures consist of parallel combinations of N and P MOSFETs. WRITE (WR) and RESET (RS) strobes are provided for interfacing with µP-bus lines (Figure 9), alleviating the need for the µP to provide constant address inputs to the mux to hold a particular channel. When the WR strobe is in the low state (less than 0.8V) and the RS strobe is in the high state (greater than 2.4V), the muxes are in the transparent mode—they act similarly to nonlatching devices, such as the DG508A/ DG509A or the HI508/HI509. When the WR goes high, the previous BCD address input is latched and held in that state indefinitely. To pull the mux out of this state, either WR must be taken X 0 0 1 1 X 0 1 0 1 0 1 1 1 1 Note: Logic “1”: VAH ≥ 2.4V, Logic “0”: VAL ≤ 0.8V. low to the transition state, or RS must be taken low to turn off all channels. RS turns off all channels when it is low, which resets channel selection to the channel 1 mode. The DG528/DG529 work with both single and dual supplies and function over the +5V to +30V single-supply range. For example, with a single +15V power supply, analog signals in the 0V to +15V range can be switched normally. If negative signals around 0V are expected, a negative supply is needed. However, only -5V is needed to normally switch signals in the -5V to +15V range (-5V, +15V supplies). No current is drawn from the negative supply, so Maxim’s MAX635 DC-DC converter is an ideal choice. The EN latch allows all switches to be turned off under program control. This is useful when two or more DG528s are cascaded to build 16-line and larger analog-signal multiplexers. _______________________________________________________________________________________ 7 DG528/DG529 8-Channel Latchable Multiplexers V+ EN PROTECTION D 4-WIDE LATCH A_ LEVEL SHIFT DECODE PROTECTION S1 PROTECTION CLK WR RESET Sn PROTECTION RS V- Figure 8. Simplified Internal Structure _______________________Applications Operation with Supply Voltages Other Than ±15V Maxim guarantees the DG528/DG529 for operation from ±4.5V to ±20V supplies. The switching delays increase by about a factor of two at ±5V, and breakbefore-make action is preserved. The DG528/DG529 can operate with a single +5V to +30V supply as well as asymmetrical power supplies like +15V and -5V. The digital threshold will remain approximately 1.6V above the GND pin, and the analog characteristics such as rDS(ON) are determined by the total voltage difference between V+ and V-. Connect Vto 0V when operating with a +5V to +30V single supply. 8 Digital Interface Levels The typical digital threshold of both the address lines and EN is 1.6V with a temperature coefficient of approximately -3mV/°C, ensuring compatibility with TTL logic over the temperature range. The digital threshold is relatively independent of the power-supply voltages, going from a typical 1.6V when V+ is 15V to 1.5V typical with V+ = 5V. Therefore, Maxim’s DG528/DG529 operate with standard TTL logic levels, even with ±5V power supplies. In all cases, EN’s threshold is the same as the other logic inputs and is referenced to GND. The digital inputs can also be driven with CMOS logic levels swinging from either V+ to V- or from V+ to GND. The digital input current is just a few nanoamps of leakage at all input-voltage levels with a guaranteed maximum of 1µA. The digital inputs are protected from ESD by a 30V zener diode between the input and V+ and can be driven ±2V beyond the supplies without drawing excessive current. _______________________________________________________________________________________ 8-Channel Latchable Multiplexers V+ DG528/DG529 +15V ±15V ANALOG INPUTS IN1 A0 DATA BUS A1 IN2 A2 EN IN3 IN4 RESET MICROPROCESSOR SYSTEM BUS RS IN5 +5V WR IN6 7432 WR IN7 ADDRESS BUS CS IN8 ADDRESS DECODER V- 1-OF-8 ANALOG INPUTS -15V Figure 9. Bus Interface _____________________________________________Pin Configurations (continued) LCC/PLCC S7 13 S4 S8 12 14 S6 N.C. 11 S3 8 9 15 S5 D 10 S2 7 V- 4 15 V+ S1A 5 DG529 S2A 6 14 S1B 19 A1 20 RS 1 N.C. 2 WR 18 GND VSS 5 17 VDD S1A 6 16 S1B DG529 S2A 7 15 S2B S3A 8 14 S3B 13 S2B S3A 7 12 S3B S4A 11 S4B 8 DA 9 10 DB DIP/SO S4B 13 16 VDD DG528 EN 4 DB 12 S1 6 16 GND N.C. 11 17 GND 17 A1 EN 3 9 VSS 5 18 RS A0 2 DA 10 18 A2 WR 1 S4A EN 4 3 A0 19 A1 20 RS 1 N.C. 2 WR 3 A0 TOP VIEW LCC/PLCC N.C. = NO CONNECT _______________________________________________________________________________________ 9 DG528/DG529 8-Channel Latchable Multiplexers _Ordering Information (continued) PART DG529CJ DG529CWN DG529CK DG529C/D DG529DJ DG529DN DG529EWN DG529DK DG529AZ DG529AK TEMP. RANGE _________________Chip Topographies DG528 PIN-PACKAGE 0°C to +70°C 18 Plastic DIP 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 -40°C to +85°C -55°C to +125°C -55°C to +125°C 18 Wide SO 18 CERDIP Dice* 18 Plastic DIP 20 PLCC 18 Wide SO 18 CERDIP 20 LCC** 18 CERDIP** * Contact factory for dice specifications. ** Contact factory for availability and processing to MIL-STD-883. A0 WR RS A1 EN A2 GND V- V+ S1 S5 S2 S6 0.125" (3.18mm) S3 S4 S7 D S8 0.131" (3.33mm) TRANSISTOR COUNT: 200 SUBSTRATE CONNECTED TO V+ DG529 A0 WR RS A1 EN GND V0.125" V+ (3.18mm) S1A S1B S2A S2B S3A S3B S4A S4B DA DB 0.131" (3.33mm) TRANSISTOR COUNT: 200 SUBSTRATE CONNECTED TO V+ 10 ______________________________________________________________________________________ 8-Channel Latchable Multiplexers D E DIM E1 A A1 A2 A3 B B1 C D1 E E1 e eA eB L A3 A A2 L A1 0° - 15° C e B1 eA B eB D1 Plastic DIP PLASTIC DUAL-IN-LINE PACKAGE (0.300 in.) INCHES MAX MIN 0.200 – – 0.015 0.175 0.125 0.080 0.055 0.022 0.016 0.065 0.045 0.012 0.008 0.080 0.005 0.325 0.300 0.310 0.240 – 0.100 – 0.300 0.400 – 0.150 0.115 PKG. DIM PINS P P P P P N D D D D D D 8 14 16 18 20 24 MILLIMETERS MIN MAX – 5.08 0.38 – 3.18 4.45 1.40 2.03 0.41 0.56 1.14 1.65 0.20 0.30 0.13 2.03 7.62 8.26 6.10 7.87 2.54 – 7.62 – – 10.16 2.92 3.81 INCHES MIN MAX 0.348 0.390 0.735 0.765 0.745 0.765 0.885 0.915 1.015 1.045 1.14 1.265 MILLIMETERS MIN MAX 8.84 9.91 18.67 19.43 18.92 19.43 22.48 23.24 25.78 26.54 28.96 32.13 21-0043A DIM D 0°- 8° A e B 0.101mm 0.004in. A1 C L A A1 B C E e H L INCHES MAX MIN 0.104 0.093 0.012 0.004 0.019 0.014 0.013 0.009 0.299 0.291 0.050 0.419 0.394 0.050 0.016 DIM PINS E H Wide SO SMALL-OUTLINE PACKAGE (0.300 in.) D D D D D 16 18 20 24 28 INCHES MIN MAX 0.398 0.413 0.447 0.463 0.496 0.512 0.598 0.614 0.697 0.713 MILLIMETERS MIN MAX 2.35 2.65 0.10 0.30 0.35 0.49 0.23 0.32 7.40 7.60 1.27 10.00 10.65 0.40 1.27 MILLIMETERS MIN MAX 10.10 10.50 11.35 11.75 12.60 13.00 15.20 15.60 17.70 18.10 21-0042A ______________________________________________________________________________________ 11 DG528/DG529 ________________________________________________________Package Information DG528/DG529 8-Channel Latchable Multiplexers ___________________________________________Package Information (continued) DIM E1 E D A 0°-15° Q L L1 e C B1 B S1 S CERDIP CERAMIC DUAL-IN-LINE PACKAGE (0.300 in.) A B B1 C E E1 e L L1 Q S S1 INCHES MIN MAX – 0.200 0.014 0.023 0.038 0.065 0.008 0.015 0.220 0.310 0.290 0.320 0.100 0.125 0.200 0.150 – 0.015 0.070 – 0.098 0.005 – DIM PINS D D D D D D 8 14 16 18 20 24 MILLIMETERS MIN MAX – 5.08 0.36 0.58 0.97 1.65 0.20 0.38 5.59 7.87 7.37 8.13 2.54 3.18 5.08 3.81 – 0.38 1.78 – 2.49 0.13 – INCHES MILLIMETERS MIN MAX MIN MAX – 0.405 – 10.29 – 0.785 – 19.94 – 0.840 – 21.34 – 0.960 – 24.38 – 1.060 – 26.92 – 1.280 – 32.51 21-0045A 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 © 1995 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.