19-3519; Rev 0; 3/91
8-Channel Latchable Multiplexers
_______________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.
________________________Applications
Data-Acquisition Systems
Automatic Test Equipment
Avionics and Military Systems
Communication Systems
Microprocessor-Controlled Systems
Audio-Signal Multiplexing
____________________________Features
♦Low-Power, Monolithic CMOS Design
♦On-Board Address Latches
♦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 |
PIN-PACKAGE |
DG528CJ |
0°C to +70°C |
18 Plastic DIP |
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DG528CWN |
0°C to +70°C |
18 Wide SO |
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DG528CK |
0°C to +70°C |
18 CERDIP |
DG528C/D |
0°C to +70°C |
Dice* |
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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.
__________Typical Operating Circuit |
_________________Pin Configurations |
+5V |
-5V |
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TOP VIEW |
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WR |
1 |
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18 |
RS |
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IN1A |
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A0 |
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A1 |
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IN1B |
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EN |
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A2 |
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IN2A |
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OUTA |
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V- |
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GND |
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IN2B |
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DG529 |
MAX133 |
μP INTERFACE |
S1 |
5 |
DG528 |
14 |
V+ |
IN3A |
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OUTB |
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S2 |
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S5 |
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IN3B |
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S3 |
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S6 |
IN4A |
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S4 |
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S7 |
IN4B |
WR |
RS A0 |
A1 |
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D |
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S8 |
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MUX AND A/D CONTROL |
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DIP/SO |
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DIFFERENTIAL INPUT FOR DATA-ACQUISITION SYSTEMS |
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Pin Configurations continued at end of data sheet. |
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________________________________________________________________ Maxim Integrated Products 1
DG528/DG529
Call toll free 1-800-998-8800 for free samples or literature.
8-Channel Latchable Multiplexers
DG528/DG529
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V- |
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18-Pin Wide SO (derate 9.52mW/°C above +70°C) |
....762mW |
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V+ .................................................................................... |
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+44V |
18-Pin CERDIP (derate 10.53mW/°C above +70°C).... |
842mW |
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GND ................................................................................. |
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+25V |
20-Pin PLCC (derate 10.00mW/°C above +70°C) ....... |
800mW |
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Digital Inputs VS, VD ................................................. |
V- -2V to V+ +2V |
20-Pin LCC (derate 9.09mW/°C above +70°C) ........... |
727mW |
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or 20mA, whichever occurs first. |
Operating Temperature Ranges |
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Current (any terminal, except S or D) ................................. |
30mA |
DG52_C_ ............................................................ |
0°C to +70°C |
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Continuous Current, S or D |
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DG52_D_/E_ .................................................... |
-40°C to +85°C |
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Peak Current, S or D ........................................................... |
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20mA |
DG52_A_ ....................................................... |
-55°C to +125°C |
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(pulsed at 1ms, 10% duty cycle max) ............................ |
50mA |
Storage Temperature Range ............................. |
-65°C to +150°C |
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Continuous Power Dissipation |
(TA = +70°C) (Note 1) |
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Lead Temperature (soldering, 10sec) ............................. |
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+300°C |
18-Pin Plastic DIP (derate 11.11mW/°C above +70°C)... |
889mW |
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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 |
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CONDITIONS |
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DG52_A |
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DG52_C/D/E |
UNITS |
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MIN |
TYP |
MAX |
MIN |
TYP |
MAX |
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SWITCH |
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Analog-Signal Range |
VANALOG |
(Note 2) |
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-15 |
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15 |
-15 |
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15 |
V |
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VD = ±10V, VAL = 0.8V, |
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TA = +25°C, |
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270 |
400 |
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270 |
450 |
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Drain-Source |
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TMIN |
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Ω |
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rDS(ON) |
IS = -200µA, VAH = 2.4 |
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On-Resistance |
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(Note 3) |
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TA = TMAX |
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500 |
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500 |
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Greatest Change in Drain- |
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Source On-Resistance |
rDS(ON) |
-10V < VS < 10V |
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TA = +25°C |
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6 |
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6 |
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Between Channels |
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Source-Off Leakage |
IS(OFF) |
VEN = 0V, VS = ±10V, |
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TA = +25°C |
-1 |
-0.005 |
1 |
-5 |
-0.005 |
5 |
nA |
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Current |
VD = ±10V |
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TA = TMAX |
-50 |
-0.005 |
50 |
-50 |
-0.005 |
50 |
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VEN = 0V, |
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DG528 |
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TA = +25°C |
-10 |
-0.015 |
10 |
-20 |
-0.015 |
20 |
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Drain-Off Leakage |
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TA = TMAX |
-200 |
-0.015 |
200 |
-200 |
-0.015 |
200 |
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ID(OFF) |
VS = ±10V, |
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nA |
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Current |
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TA = +25°C |
-10 |
-0.008 |
10 |
-20 |
-0.008 |
20 |
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VD = ±10V |
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DG529 |
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TA = TMAX |
-100 |
-0.008 |
100 |
-100 |
-0.008 |
100 |
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VAH = 2.4V, |
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DG528 |
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TA = +25°C |
-10 |
-0.03 |
10 |
-20 |
-0.03 |
20 |
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Drain-On Leakage |
ID(ON) |
VS = VD = ±10V, |
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TA = TMAX |
-200 |
-0.03 |
200 |
-200 |
-0.03 |
200 |
nA |
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Current (Notes 3, 4) |
VAL = 0.8V, |
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DG529 |
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TA = +25°C |
-10 |
-0.015 |
10 |
-20 |
-0.015 |
20 |
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VEN = 2.4V |
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TA = TMAX |
-100 |
-0.015 |
100 |
-100 |
-0.015 |
100 |
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INPUT |
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VA = 2.4V |
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TA = +25°C |
-1 |
-0.002 |
1 |
-1 |
-0.002 |
1 |
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Address Input Current, |
IAH |
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TA = TMAX |
-30 |
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-30 |
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µA |
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Input Voltage High |
VA = 15V |
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TA = +25°C |
-1 |
-0.006 |
1 |
-1 |
-0.006 |
1 |
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TA = TMAX |
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30 |
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30 |
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Address Input Current, |
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VA = |
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= 0V, |
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TA = +25°C |
-1 |
-0.002 |
1 |
-1 |
-0.002 |
1 |
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IAL |
RS |
WR |
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µA |
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Input Voltage Low |
VEN = 0V or 2.4V |
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TA = TMAX |
-30 |
-0.01 |
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-30 |
-0.01 |
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2 _______________________________________________________________________________________
8-Channel Latchable Multiplexers
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V- = -15V, VEN = 2.4V, WR = 0V, RS = 2.4V, TA = TMIN to TMAX, unless otherwise noted.)
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PARAMETER |
SYMBOL |
CONDITIONS |
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DG52_A |
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DG52_C/D/E |
UNITS |
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MIN |
TYP |
MAX |
MIN TYP MAX |
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DYNAMIC |
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Switching Time of |
tTRANS |
Figure 1 |
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TA = +25°C |
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0.4 |
1 |
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1.5 |
µs |
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Multiplexer |
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Break-Before-Make |
tOPEN |
Figure 2 |
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TA = +25°C |
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0.2 |
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0.2 |
µs |
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Interval |
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Enable, Write Turn-On |
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tON(EN, WR) |
Figures 3, 4 |
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TA = +25°C |
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1.0 |
1.5 |
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1.5 |
µs |
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Time |
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Enable, Reset Turn-Off |
tOFF(EN, |
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Figures 3, 5 |
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TA = +25°C |
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0.4 |
1 |
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1.5 |
µs |
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RS) |
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Time |
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Charge Injection |
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Q |
Figure 6 |
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TA = +25°C |
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4 |
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4 |
pC |
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VEN = 0V, RL = 1kΩ , |
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Off Isolation |
OIRR |
CL = 15pF, |
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TA = +25°C |
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68 |
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68 |
dB |
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VS = 7VRMS, f = 500kHz |
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Logic-Input |
CIN |
f = 1MHz |
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TA = +25°C |
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2.5 |
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2.5 |
pF |
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Capacitance |
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Source-Off |
CS(OFF) |
VEN = 0V, f = 140kHz, |
TA = +25°C |
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pF |
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Capacitance |
VS = 0V |
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VEN = 0V, |
DG528 |
TA = +25°C |
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25 |
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25 |
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Drain-Off Capacitance |
CD(OFF) |
f = 140kHz, |
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pF |
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DG529 |
TA = +25°C |
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12 |
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VS = 0V |
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SUPPLY |
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Positive Supply |
I+ |
VEN = VAH = 0V |
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TA = +25°C |
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0.003 |
2.5 |
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0.003 2.5 |
mA |
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Negative Supply |
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I- |
VEN = VAH = 0V |
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TA = +25°C |
-1.5 |
0.01 |
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-1.5 |
0.01 |
mA |
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MINIMUM INPUT TIMING |
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WR |
Pulse Width |
tWW |
Figure 7 |
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300 |
150 |
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300 |
15 |
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AX, EN Data |
tDW |
(Stabilization Time) Figure 7 |
180 |
120 |
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180 |
12 |
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AX, EN Data |
tWD |
(Hold Time) Figure 7 |
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30 |
10 |
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30 |
10 |
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Valid after WR |
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Pulse Width |
t |
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Figure 7; VS = 5V (Note 5) |
500 |
150 |
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500 |
150 |
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RS |
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Note 2: Guaranteed by design. |
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Note 3: Sequence each switch on.
Note 4: ID(ON) is leakage from driver into on switch.
Note 5: Reset pulse period must be at least 50µs during or after power-on.
DG528/DG529
_______________________________________________________________________________________ 3
8-Channel Latchable Multiplexers
DG528/DG529
+2.4V +15V
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DG528 |
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EN |
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V+ |
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IN1 |
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±10V |
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RS |
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IN2 TO IN7 |
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SWITCH |
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A0 |
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IN8 |
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±10V |
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+3V |
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A1 |
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OUTPUT |
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LOGIC |
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OUT |
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VO |
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LOGIC |
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A2 |
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INPUT |
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50% |
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INPUT |
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GND |
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WR |
V- |
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tr < 20ns |
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tf < 20ns |
0 |
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50Ω |
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1M |
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35pF |
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SWITCH |
VIN1 |
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0.8VIN1 |
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+15V |
-15V |
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+2.4V |
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OUTPUT |
0 |
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DG529 |
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VO |
0.8VIN8 |
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VIN8 |
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EN |
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V+ |
IN1B |
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±10V |
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RS |
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IN1A TO IN4A |
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tTRANSITION |
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IN8 ON |
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tTRANSITION |
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OUTA, IN2B TO IN3B |
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SWITCH |
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IN1 ON |
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A0 |
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IN4B |
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±10V |
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OUTPUT |
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LOGIC |
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A1 |
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OUTB |
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VOB |
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INPUT |
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GND |
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WR |
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V- |
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50Ω |
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1M |
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35pF |
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-15V |
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Figure 1. Transition-Time Test Circuits
LOGIC |
+3V |
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+3V |
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+2.4V |
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+15V |
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INPUT |
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50% |
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+1.5V |
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+1.5V |
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DG529 |
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tr < 20ns |
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EN |
V+ |
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tf < 20ns |
0 |
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0V |
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RS |
IN_ AND |
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+5V |
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OUTA |
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SWITCH |
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VIN |
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OUTPUT |
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SWITCH |
80% |
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LOGIC |
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A0, A1 (A2) |
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OUTB |
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VO |
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OUTPUT |
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GND WR |
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V- |
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VO |
0V |
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INPUT |
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35pF |
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tOPEN |
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50Ω |
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1k |
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Figure 2. Open-Time (B.B.M.) Interval Test Circuit
4 _______________________________________________________________________________________