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19-1332; Rev 0; 1/98
Low-Voltage, Single-Supply Multiplexer and Switch
________________General Description
The MAX4524/MAX4525 are low-voltage, single-supply CMOS analog switches configured as a 4-channel multiplexer/demultiplexer (MAX4524) and a doublepole/double-throw (DPDT) switch (MAX4525). Both have an inhibit input to simultaneously open all signal paths. These devices operate from a single supply of +2V to +12V and are optimized for operation with +3V or +5V supplies. On-resistance is 200 with a +5V supply and 500 with a +3V supply. Each switch can handle Railto-Rail(R) analog signals. The off-leakage current is only 2nA at +25C or 20nA at +85C. All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply.
____________________________Features
o Tiny 10-Pin MAX Package o Single-Supply Operation from +2V to +12V o 200 On-Resistance with +5V Supply o 500 On-Resistance with +3V Supply o Guaranteed 8 On-Resistance Match at +5V o Guaranteed 2nA Max On-Leakage at +5V o TTL/CMOS-Logic Compatible
MAX4524/MAX4525
_______________Ordering Information
PART MAX4524CUB MAX4524C/D MAX4524EUB MAX4525CUB MAX4525C/D MAX4525EUB TEMP. RANGE 0C to +70C 0C to +70C -40C to +85C 0C to +70C 0C to +70C -40C to +85C PIN-PACKAGE 10 MAX Dice* 10 MAX 10 MAX Dice* 10 MAX
________________________Applications
Battery-Operated Equipment Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits
*Contact factory for availability.
______________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
MAX4524
NO2 1 NO3 NO1 INH GND 2 3 4 5 LOGIC 10 V+ 9 8 7 6 COM NO0 ADDA ADDB NOA 1 COMA NCA INH GND 2 3 4 5
MAX4525
10 V+ 9 8 7 LOGIC 6 COMB NOB NCB ADD
MAX
INH 1 0 0 0 0 ADDB X 0 0 1 1 ADDA ON SWITCH X 0 1 0 1 NONE COM-NO0 COM-NO1 COM-NO2 COM-NO3 X = DON'T CARE 0 INH 1 0
MAX
ADD X 0 1 ON SWITCH NONE COMA-NCA, COMB-NCB COMA-NOA, COMB-NOB
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 408-737-7600 ext. 3468.
Low-Voltage, Single-Supply Multiplexer and Switch MAX4524/MAX4525
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND) V+ ..............................................................................-0.3V, +13V Voltage into any terminal (Note 1) ................-0.3V to (V+ + 0.3V) Continuous Current into any Terminal ..............................20mA Peak Current, NO, NC or COM_ (pulsed at 1ms,10% duty cycle)....................................40mA ESD per Method 3015.7 ..................................................>2000V Continuous Power Dissipation (TA = +70C) MAX (derate 4.1mW/C above +70C) .......................330mW Operating Temperature Ranges MAX452_C_ _ ......................................................0C to +70C MAX452_E_ _....................................................-40C to +85C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10sec) .............................+300C
Note 1: Voltages exceeding V+ or GND on any signal terminal 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--Single +5V Supply
(V+ = +4.5V to +5.5V, GND = 0V, VAH = 2.4V, VAL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER ANALOG SWITCH Analog Signal Range COM-NO/NC On-Resistance COM-NO/NC On-Resistance Match Between Channels (Note 3) COM-NO/NC On-Resistance Flatness (Note 4) NO/NC Off-Leakage (Note 5) VCOM, VNO RON RON V+ = 4.5V, ICOM = 1mA, VCOM = 3.5V C, E +25C C, E +25C V+ = 4.5V, ICOM = 1mA, VCOM = 3.5V C, E RFLAT INO(OFF), INC(OFF), V+ = 5.5V; ICOM = 1mA; VCOM = 1.5V, 2.5V, 3.5V V+ = 5.5V; VNO = 1V, 4.5V; VCOM = 4.5V, 1V MAX4524 COM Off-Leakage (Note 5) ICOM(OFF) V+ = 5.5V; VNO = 1V, 4.5V; VCOM = 4.5V, 1V MAX4525 MAX4524 COM On-Leakage (Note 5) DIGITAL I/O Logic Input Logic Threshold High Logic Input Logic Threshold Low Input Current High Input Current Low VIH VIL IIH IIH VA = VINH = 2.4V VA = VINH = 0.8V C, E C, E C, E C, E 0.8 -1 -1 1.5 1.5 1 1 2.4 V V A A ICOM(ON) V+ = 5.5V; VCOM = 4.5V, 1V MAX4525 +25C +25C C, E +25C C, E +25C C, E +25C C, E +25C C, E -1 -10 -2 -50 -1 -25 -2 -50 -1 -25 5 15 12 1 10 2 50 1 25 2 50 1 25 nA nA nA 2 V90 V+ 150 200 10 V SYMBOL CONDITIONS TEMP. MIN TYP MAX (Note 2) UNITS
2
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Low-Voltage, Single-Supply Multiplexer and Switch
ELECTRICAL CHARACTERISTICS--Single +5V Supply (continued)
(V+ = +4.5V to +5.5V, GND = 0V, VAH = 2.4V, VAL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER SYMBOL CONDITIONS TEMP. MIN TYP MAX (Note 2) 90 40 90 5 20 0.8 4 14 6 20 12 -75 -74 0.2 2 -1 -10 12 1 10 5 150 200 120 180 150 200 UNITS
MAX4524/MAX4525
SWITCH DYNAMIC CHARACTERISTICS Inhibit Turn-On Time Inhibit Turn-Off Time Address Transition Time Break-Before-Make Time Charge Injection (Note 6) NO/NC Off-Capacitance COM Off-Capacitance COM On-Capacitance Off-Isolation Channel-to-Channel Crosstalk (MAX4525) Total Harmonic Distortion POWER SUPPLY Power-Supply Range Power-Supply Current V+ I+ V+ = 5.5V, VADD = VINH = V+ or 0V C, E +25C C, E V A t(ON) t(OFF) tTRANS tBBM Q CNO(OFF) VNO_ = 3V, RL = 300, CL = 35pF, Figure 2 VNO_ = 3V, RL = 300, CL = 35pF, Figure 2 VNO_ = 3V/0V, RL = 300, CL = 35pF, Figure 1 VNO_ = 3V, RL = 300, CL = 35pF, Figure 3 C = 1nF, RS = 0, VS = 2.5V, Figure 4 VNO_ = 0V, f = 1MHz, Figure 6 MAX4524 MAX4525 MAX4524 MAX4525 +25C C, E +25C C, E +25C C, E +25C +25C +25C +25C +25C +25C +25C +25C +25C +25C ns ns ns ns pC pF pF pF dB dB %
CCOM(OFF) VNO_ = 0V, f = 1MHz, Figure 6 CCOM(ON) VNO_ = 0V, f = 1MHz, Figure 6 VISO VCT THD RL = 50, f = 1MHz, Figure 5 RL = 50, f = 1MHz, Figure 5
RL = 600, VCOM = 2.5Vp-p, 20Hz to 20kHz
ELECTRICAL CHARACTERISTICS--Single +3V Supply
(V+ = +2.7V to +3.6V, GND = 0V, VAH = 2.0V, VAL = 0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER ANALOG SWITCH Analog Signal Range COM-NO/NC On-Resistance NO/NC Off-Leakage (Note 6) COM Off-Leakage (Note 6) VCOM, VNO RON INO(OFF), INC(OFF) V+ = 2.7V, ICOM = 0.1mA, VCOM = 1.5V V+ = 3.6V; VNO = 1V, 3V; VCOM = 3V, 1V MAX4524 ICOM(OFF) V+ = 3.6V; VNO = 1V, 3V; VCOM = 3V, 1V MAX4525 C, E +25C C, E +25C C, E +25C C, E +25C C, E V190 -1 -10 -2 -50 -1 -25 V+ 400 500 1 10 2 50 1 25 V nA SYMBOL CONDITIONS TEMP. MIN TYP MAX (Note 2) UNITS
nA
________________________________________________________________________________________
3
Low-Voltage, Single-Supply Multiplexer and Switch MAX4524/MAX4525
ELECTRICAL CHARACTERISTICS--Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, GND = 0V, VAH = 2.0V, VAL = 0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER SYMBOL CONDITIONS MAX4524 COM On-Leakage (Note 6) DIGITAL I/O Logic Input Logic Threshold High Logic Input Logic Threshold Low Input Current High Input Current Low VIH VIL IIH IIH VA = VINH = 2.0V VA = VINH = 0.5V VNO_ = 1.5V, RL = 300, CL = 35pF, Figure 2 VNO_ = 1.5V, RL = 300, CL = 35pF, Figure 2 VNO_ = 1.5V/0V, RL = 300, CL = 35pF, Figure 1 C, E C, E C, E C, E +25C C, E +25C C, E +25C C, E 5 -1 -10 40 1 10 130 50 0.5 -1 -1 170 1.0 1.0 1 1 300 400 200 300 300 400 2.0 V V A A ICOM(ON) V+ = 3.6V; VCOM = 3V, 1V MAX4525 TEMP. +25C C, E +25C C, E MIN -2 -50 -1 -25 TYP MAX (Note 2) 2 50 1 25 nA UNITS
SWITCH DYNAMIC CHARACTERISTICS (Note 6) Inhibit Turn-On Time Inhibit Turn-Off Time Address Transition Time Break-Before-Make Time POWER SUPPLY Power-Supply Current I+ V+ = 3.6V, VADD = VINH = V+ or 0V +25C C, E A t(ON) t(OFF) tTRANS tBBM ns ns ns ns
Figure 3, VNO_ = 1.5V, RL = 300, CL = 35pF +25C
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: RON = RON(MAX) - RON(MIN) Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges; i.e., VNO = 3V to 0V and 0V to 3V. Note 5: Leakage parameters are 100% tested at maximum-rated hot operating temperature, and guaranteed by correlation at TA = +25C. Note 6: Guaranteed by design, not production tested.
4
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Low-Voltage, Single-Supply Multiplexer and Switch
__________________________________________Typical Operating Characteristics
(V+ = +5V, GND = 0V, TA = +25C, unless otherwise noted.)
MAX4524/MAX4525
ON-RESISTANCE vs. VCOM
MAX4524/25-01
ON-RESISTANCE vs. VCOM AND TEMPERATURE
MAX4524/25-02
OFF-LEAKAGE vs. TEMPERATURE
V+ = 5.5V 10
MAX4524/25-03
10,000 V+ = 1.2V 1000 RON ()
130 110 90 RON () 70 50 30 TA = 0C TA = -40C TA = +25C TA = +70C TA = +85C
100
V+ = 2V V+ = 2.7V V+ = 3.3V V+ = 5V
OFF-LEAKAGE (nA)
1 COM OFF 0.1 NO OFF
100
V+ = 7.5V
V+ = 10V 10 0 1 2 3 4 5 6 7 8 9 10 VCOM (V) 10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5..0 VCOM (V) 0.01 -50 -25 0 25 50 75 TEMPERATURE (C) 100 125
ON-LEAKAGE vs. TEMPERATURE
MAX4524/25-04
CHARGE INJECTION vs. VCOM
MAX4524/25-05
SUPPLY CURRENT vs. TEMPERATURE
V+ = 5V VINH = VA = 0V, 5V I+ I+, (nA)
MAX4524/25-06
100,000 V+ = 5.5V 10,000 ON-LEAKAGE (pA)
1.5 1.0 0.5 Q (pC) V+ = +5V V- = 0V
100
1000
0 -0.5 -1.0 -1.5 -2.0 10
100 10
1 -50 -25 0 25 50 75 TEMPERATURE (C) 100 125
-2.5 0 1 2 3 4 5 VCOM (V)
1 -50 -25 0 25 50 75 TEMPERATURE (C) 100 125
TOTAL HARMONIC DISTORTION vs. FREQUENCY
600 IN AND OUT
MAX4524/25-07
FREQUENCY RESPONSE
0 -10 -20 -30 -40 LOSS (dB) OFF LOSS ON PHASE -50 -60 -70 -80 -90 -100 -110 -120 50 IN AND OUT 0.1 1 10 FREQUENCY (MHz) 100 300 ON LOSS
MAX4524/25-08
100
120 100 80 60 PHASE (DEGREES) 40 20 0 -20 -40 -60 -80 -100 -120
10 THD (%)
1
0.1
0.01 10 100 1k FREQUENCY (Hz) 10k 100k
_______________________________________________________________________________________
5
Low-Voltage, Single-Supply Multiplexer and Switch MAX4524/MAX4525
Typical Operating Characteristics (continued)
(V+ = +5V, GND = 0V, TA = +25C, unless otherwise noted.)
V+ CURRENT vs. LOGIC LEVEL
10-1 10-2 10-3 I+ CURRENT 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 0 1 2 3 4 5 6 7 8 9 10 11 12 VADD_, VINH (V) 0 0 0.5 V+ = +5V V+ = +12V VINH, VADD_ (V) 2.0 1.5 1.0
MAX4524/25-09
LOGIC-LEVEL THRESHOLD vs. V+
MAX4524/25-10
1
3.0 2.5
12
3
4
5
6 V+ (V)
7
8
9 10 11 12
______________________________________________________________ Pin Description
MAX4524 1 -- 2 -- 3 -- 4 5 6 -- 7 -- 8 -- 9 -- 10 MAX4525 -- 1 -- 2 -- 3 4 5 -- 6 -- 7 -- 8 -- 9 10 NAME NO2 NOA NO3 COMA NO1 NCA INH GND ADDB ADD ADDA NCB NO0 NOB COM COMB V+ Analog Switch Normally Open Input 2 Analog Switch "A" Normally Open Input Analog Switch Normally Open Input 3 Analog Switch "A" Common Analog Switch Normally Open Input 1 Analog Switch "A" Normally Closed Input Inhibit. Connect to GND for normal operation. Connect to logic-level high to turn all switches off. Ground. Connect to digital ground (analog signals have no ground reference, but are limited to V+ and GND). Logic-Level Address Input (see Truth Tables) Logic-Level Address Input (see Truth Tables) Logic-Level Address Input (see Truth Tables) Analog Switch "B" Normally Closed Input Analog Switch Normally Open Input 0 Analog Switch "B" Normally Open Input Analog Switch Common Analog Switch "A" Common Positive Analog and Digital Supply-Voltage Input FUNCTION
Note: NO_, NC_, and COM_ analog signal pins are identical and interchangeable. Any may be considered an input or output; signals pass equally well in both directions.
6
_______________________________________________________________________________________
Low-Voltage, Single-Supply Multiplexer and Switch
__________Applications Information
Power-Supply Considerations
The MAX4524/MAX4525's construction is typical of most CMOS analog switches. They have two supply pins: V+ and GND. V+ and GND are used to drive the internal CMOS switches and set the limits of the analog voltage on any switch. Reverse ESD-protection diodes are internally connected between each analog signal pin and both V+ and GND. If any analog signal exceeds V+ or GND, one of these diodes will conduct. During normal operation, these (and other) reversebiased ESD diodes leak, forming the only current drawn from V+ or GND. Virtually all the analog leakage current comes from the ESD diodes. Although the ESD diodes on a given signal pin are identical, and therefore fairly well balanced, they are reverse-biased differently. Each is biased by either V+ or GND and the analog signal. This means that leakage will vary as the signal varies. The difference in the two diode leakages to the V+ and GND pins constitutes the analog signal-path leakage current. All analog leakage current flows between each pin and one of the supply terminals, not to the other switch terminal. This is why both sides of a given switch can show leakage currents of either the same or opposite polarity.
MAX4524/MAX4525
______________________________________________Test Circuits/Timing Diagrams
V+ V+ VADD 50 V+ ADDA ADDB NO0 NO1-NO2 V+ VADD 0V VNO0 90% 90% VOUT 35pF 300 50%
MAX4524
INH GND
NO3 COM VOUT 0V tTRANS
tTRANS
V+ V+ VADD 50 V+ ADD NO VADD 0V VNC 50%
90% 90%
MAX4525
INH GND
NC COM
V+ VOUT 35pF 300 VOUT 0V tTRANS
tTRANS
REPEAT TEST FOR EACH SECTION.
Figure 1. Address Transition Time
_______________________________________________________________________________________ 7
Low-Voltage, Single-Supply Multiplexer and Switch MAX4524/MAX4525
There is no connection between the analog signal paths and GND. V+ and GND power the internal logic and logic-level translators, and set both the input and output logic limits. The logic-level translators convert the logic levels into switched V+ and GND signals to drive the gates of the analog signals. This drive signal is the only connection between the logic supplies (and signals) and the analog supplies. V+ has an ESD-protection diode to GND.
High-Frequency Performance
In 50 systems, signal response is reasonably flat up to 50MHz (see Typical Operating Characteristics). Above 20MHz, the on-response has several minor peaks, which are highly layout dependent. The problem is not turning the switch on, but turning it off. The offstate switch acts like a capacitor, and passes higher frequencies with less attenuation. At 10MHz, off-isolation is about -50dB in 50 systems, becoming worse (approximately 20dB per decade) as frequency increases. Higher circuit impedances also degrade offisolation. Adjacent channel attenuation is about 3dB above that of a bare IC socket, and is entirely due to capacitive coupling.
Low-Voltage Operation
These devices operate from a single supply between +2V and +12V. At room temperature, they actually "work" with a single supply at near or below +1.7V, although as supply voltage decreases, switch on-resistance and switching times become very high.
_________________________________Test Circuits/Timing Diagrams (continued)
V+ V+ V+ ADDA ADDB NO0 NO1-NO3 V+ VINH 0V VNO0 90% COM GND 300 35pF VOUT 50%
MAX4524
VINH 50 INH VOUT 0V tON 90%
tOFF
V+ V+ V+ ADD NO_ NC_ V+ VINH 0V VNO_ 90% COM_ GND 50 300 35pF VOUT VOUT 0V tON tOFF 90% 50%
VINH
MAX4525
INH
REPEAT TEST FOR EACH SECTION.
Figure 2. Inhibit Switching Times
8 _______________________________________________________________________________________
Low-Voltage, Single-Supply Multiplexer and Switch
_________________________________Test Circuits/Timing Diagrams (continued)
V+ VADD 50 V+ ADDA ADDB NO0-N03 V+
MAX4524/MAX4525
MAX4524
INH GND 300 COM 35pF VOUT VADD
V+ 50% 0V VCOM 80%
tR < 20ns tF < 20ns
V+ VADD ADD 50 V+ NO_, NC_ V+
VOUT 0V tBBM
MAX4525
INH GND 300 COM_ 35pF VOUT
REPEAT TEST FOR EACH SECTION.
Figure 3. Break-Before-Make Interval
V+ V+ V+ NO_ CHANNEL SELECT ADDB ADDA VINH 50 VNO = 0V VINH 0V
MAX4524 MAX4525
COM_ GND VOUT CL 1000pF
VOUT
VOUT
INH
VOUT IS THE MEASURED VOLTAGE DUE TO CHARGETRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = VOUT X CL
REPEAT TEST FOR EACH SECTION.
Figure 4. Charge Injection
_______________________________________________________________________________________ 9
Low-Voltage, Single-Supply Multiplexer and Switch MAX4524/MAX4525
_________________________________Test Circuits/Timing Diagrams (continued)
V+
10nF NETWORK ANALYZER 50 50
V+ CHANNEL SELECT ADDA ADDB NO_
VIN
OFF ISOLATION = 20log
VOUT VIN VOUT VIN VOUT VIN
MAX4524 MAX4525
VOUT COM_ GND 50 50 MEAS. REF.
ON LOSS = 20log
INH
CROSSTALK = 20log
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH. CROSSTALK (MAX4524) IS MEASURED FROM ONE CHANNEL (A, B) TO OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 5. Off-Isolation, On-Loss, and Crosstalk
V+
V+ CHANNEL SELECT ADDA ADDB NO_ NO_
MAX4524 MAX4525
INH GND COM_ 1MHz CAPACITANCE ANALYZER
Figure 6. NO/COM Capacitance
10 ______________________________________________________________________________________
Low-Voltage, Single-Supply Multiplexer and Switch
__________________________________________________________Chip Topographies
MAX4524
NO2 N.C. V+ N.C. N.C. N.C.
MAX4524/MAX4525
MAX4525
V+ N.C.
N.C. N.C. COM NO3 NO1 N.C. 0.069" (1.75mm) NO0 COMA NCA NOA
N.C.
COMB NOB 0.069" (1.75mm) NCB
ADDA INH INH
N.C.
N.C.
GND
N.C.
ADDB
N.C.
GND
N.C.
ADD
0.053" (1.35mm)
0.053" (1.35mm)
N.C. = No Connection
TRANSISTOR COUNT: 219 SUBSTRATE CONNECTED TO V+
______________________________________________________________________________________
11
Low-Voltage, Single-Supply Multiplexer and Switch MAX4524/MAX4525
________________________________________________________Package Information
10LUMAXB.EPS
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 (c) 1998 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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