MAXIM MAX4659EUA

19-2046; Rev 0; 4/01
High-Current, 25Ω, SPDT, CMOS
Analog Switches
Applications
Relay Replacement
Features
♦ High Continuous Current Handling
150mA Continuous Current (MAX4660)
75mA Continuous Current (MAX4659)
♦ High Peak Current Handling
200mA Peak Current (MAX4660)
150mA Peak Current (MAX4659)
♦ 25Ω max On-Resistance (±15V Supplies)
♦ VL Supply Not Required
♦ 1.5Ω max RON Flatness (±15V Supplies)
♦ Rail-to-Rail Signal Handling
♦ +12V Single Supply or ±15V Dual-Supply
Operation
♦ Pin Compatible with DG419, MAX319
Ordering Information
PART
MAX4659EUA
MAX4659ESA
MAX4660EUA
MAX4660ESA
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 SO
8 µMAX EP*
8 SO EP*
* Exposed paddle
Test Equipment
Communication Systems
Pin Configuration
xDSL Modems
PBX, PABX Systems
TOP VIEW
Audio Signal Routing
Audio Systems
PC Multimedia Boards
COM
1
8
NO
NC
2
7
V-
GND
3
6
IN
5
N.C.
Redundant/Backup Systems
V+ 4
MAX4659
MAX4660
µMAX/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
MAX4659/MAX4660
NC
NO
ON
OFF
LOGIC
0
1
OFF
ON
SWITCH SHOWN FOR LOCIC "0" INPUT
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX4659/MAX4660
General Description
The MAX4659/MAX4660 are medium voltage CMOS
analog switches with a low on-resistance of 25Ω max
specifically designed to handle large switch currents.
With a switch capability of up to 200mA peak current
and 150mA continuous current (MAX4660), and up to
150mA peak current and 75mA continuous current
(MAX4659), these parts can switch loads as low as
50Ω. They can replace reed relays with a million times
the speed and a virtually unlimited number of lifetime
cycles. Normal power consumption is only 3mW,
whether the switch is on or off. These parts are
TTL/CMOS compatible and will switch any voltage within their power-supply range.
The devices are single-pole/double-throw (SPDT)
switches. The MAX4659/MAX4660 contain one normally
closed (NC) switch and one normally open (NO) switch.
The MAX4659/MAX4660s’ power-supply range is from
±4.5V to ±20V for dual-supply operation and +9V to
+40V for single-supply operation. These switches can
operate from any combination of supplies, within a 40V
V+ to V- range. They conduct equally well in either
direction and can handle Rail-to-Rail® analog signals.
The off-leakage current is only 1nA max at TA = +25°C.
The MAX4659 is available in 8-pin µMAX and SO packages. The MAX4660 is available in thermally enhanced
exposed paddle µMAX and SO packages.
MAX4659/MAX4660
High-Current, 25Ω, SPDT, CMOS
Analog Switches
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +44V
V- to GND ...............................................................-44V to +0.3V
V+ to V-...................................................................-0.3V to +44V
All Other Pins to GND (Note 1) ............ (V- - 0.3V) to (V+ + 0.3V)
Continuous Current COM, NO, NC (MAX4660)..............±150mA
Continuous Current COM, NO, NC (MAX4659)................±75mA
Continuous Current IN ......................................................±30mA
Peak Current COM, NO, NC
MAX4660 (pulsed at 1ms, 10% duty cycle) ..............±200mA
MAX4659 (pulsed at 1ms, 10% duty cycle) ..............±150mA
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX-EP (derate 10.3mW/°C above +70°C)
MAX4660.....................................................................825mW
8-Pin µMAX (derate 4.50mW/°C above +70°C)
MAX4659.....................................................................362mW
8-Pin SO-EP (derate 18.9mW/°C above +70°C)
MAX4660...................................................................1509mW
8-Pin SO (derate 5.88mW/°C above +70°C)
MAX4659.....................................................................471mW
Operating Temperature Ranges
MAX4659/MAX4660........................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Signals on NO, NC, 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, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 6)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
V+
V
ANALOG SWITCH
Analog Signal Range
VCOM,
VNO, VNC
V+25°C
RON
ICOM = 50mA;
VNO or VNC = ±10V
TMIN to TMAX
On-Resistance Matching
Between Channels
∆RON
ICOM = 50mA;
VNO or VNC = ±10V
TMIN to TMAX
On-Resistance Flatness
(Note 3)
RFLAT (ON)
NO or NC Off-Leakage
Current (Note 4)
INO(OFF) or VCOM = -14.5V, +14.5V; VNO
INC(OFF) or VNC = +14.5V, -14.5V
On-Resistance
COM On-Leakage
Current (Note 4)
ICOM(ON)
ICOM = 50mA;
VNO or VNC = -5V, 0, +5V
VCOM = +14.5V, -14.5V;
VNO or VNC = +14.5V,
-14.5V, or floating
18
25
30
+25°C
0.4
1.2
1.5
+25°C
0.5
TMIN to TMAX
1.5
2
+25°C
-1
TMIN to TMAX
-10
+25°C
-2
TMIN to TMAX
-20
0.01
1
10
0.02
Ω
Ω
Ω
nA
2
nA
20
DYNAMIC CHARACTERISTICS
Transition Time
Break-Before-Make Delay
2
tTRANS
VNO or VNC = 10V;
RL = 300Ω,
CL = 35pF; Figure 3
tBBM
VNO or VNC = 10V;
RL = 300Ω,
CL = 35pF, Figure 3
+25°C
85
150
ns
TMIN to TMAX
200
+25°C
10
TMIN to TMAX
5
20
_______________________________________________________________________________________
ns
High-Current, 25Ω, SPDT, CMOS
Analog Switches
(V+ = +15V, V- = -15V, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 6)
PARAMETER
SYMBOL
Charge Injection
Q
-3dB Bandwidth
BW
Off-Isolation (Note 5)
VISO
Total Harmonic Distortion
THD
Crosstalk
VCROSS
CONDITIONS
VGEN = 0, RGEN = 0,
CL = 1nF, Figure 4
TA
MIN
TYP
MAX
UNITS
+25°C
1.5
pC
+25°C
225
MHz
f = 1MHz, RL = 50Ω,
Figure 5
+25°C
-70
dB
f = 20Hz to 20kHz, VN_ =
5Vp-p, RL = 600Ω
+25°C
0.005
%
RL = 50Ω, CL = 5pF,
f = 1MHz, Figure 6
+25°C
-76
dB
NO or NC Off-Capacitance
CNO(OFF),
CNC(OFF)
f = 1MHz, Figure 7
+25°C
6
pF
COM On-Capacitance
CCOM(ON)
f = 1MHz, Figure 8
+25°C
25
pF
DIGITAL I/O
Input Logic High
VIH
TMIN to TMAX
Input Logic Low
VIL
TMIN to TMAX
Input Leakage Current
IIN
VIN = 0.8V or 2.4V
2.4
V
0.8
V
TMIN to TMAX
-1
1
µA
TMIN to TMAX
±4.5
±20
V
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Negative Supply Current
Ground Current
I+
I-
IGND
VIN = 0 or 5V, VN_ = 3V,
ISWITCH = 100mA,
MAX4660;
ISWITCH = 50mA,
MAX4659
VIN = 0 or 5V, VN_ = 3V,
ISWITCH = 100mA,
MAX4660;
ISWITCH = 50mA,
MAX4659
VIN = 0 or 5V, VN_ = 3V,
ISWITCH = 100mA,
MAX4660;
ISWITCH = 50mA,
MAX4659
+25°C
135
200
µA
TMIN to TMAX
+25°C
300
30
50
µA
TMIN to TMAX
+25°C
75
100
175
µA
TMIN to TMAX
225
_______________________________________________________________________________________
3
MAX4659/MAX4660
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
MAX4659/MAX4660
High-Current, 25Ω, SPDT, CMOS
Analog Switches
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 6)
PARAMETER
SYMBOL
ANALOG SWITCH
Analog Signal Range
VIN
On-Resistance
RON
On-Resistance Matching
Between Channels
∆RON
On-Resistance Flatness
(Note 3)
RFLAT (ON)
CONDITIONS
ICOM = 25mA;
VNO or VNC = +10V
ICOM = 25mA;
VNO or VNC = ±10V
ICOM = 25mA;
VNO or VNC = +2V, +6V,
+10V
TA
MIN
TMIN to TMAX
0
+25°C
TYP
38
TMIN to TMAX
MAX
UNITS
V+
V
50
60
+25°C
0.4
TMIN to TMAX
2
2.5
+25°C
4
TMIN to TMAX
7
9
Ω
Ω
Ω
DYNAMIC CHARACTERISTICS
Transition Time
Break-Before-Make Delay
Charge Injection
tTRANS
tBBM
Q
VNO or VNC = 10V;
RL = 300Ω;
CL = 35pF, Figure 2
VNO or VNC = 10V;
RL = 300 Ω;
CL = 35pF, Figure 2
VGEN = 0, RGEN = 0,
CL = 1nF, Figure 4
+25°C
120
200
ns
TMIN to TMAX
250
+25°C
20
TMIN to TMAX
10
50
ns
+25°C
1
pC
POWER SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
+9
VIN = 0 or 12V, VN_ = 3V;
ISWITCH = 50mA, MAX4660;
ISWITCH = 25mA, MAX4659
VIN = 5V, VN_ = 3V;
ISWITCH = 50mA, MAX4660;
ISWITCH = 25mA, MAX4659
+25°C
+40
50
TMIN to TMAX
+25°C
100
125
70
TMIN to TMAX
V
µA
125
150
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 4: Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at TA = +25°C.
Note 5: Off-isolation = 20log10 [VCOM / (VNC or VNO)], VCOM = output, VNC or VNO = input to off switch.
Note 6: -40°C specifications are guaranteed by design.
4
_______________________________________________________________________________________
High-Current, 25Ω, SPDT, CMOS
Analog Switches
ON-RESISTANCE vs. VCOM
(SINGLE SUPPLY)
A
45
55
40
50
40
35
25
E
15
B
-20
-10
0
10
25
TA = +85°C
20
TA = +25°C
D
15
15
E
10
TA = -40°C
5
0
10
0
20
8
16
24
32
40
-15
-10
-5
0
5
VCOM (V)
VCOM (V)
VCOM (V)
ON-RESISTANCE vs. VCOM
AND TEMPERATURE (SINGLE SUPPLY)
LEAKAGE CURRENT
vs. TEMPERATURE
CHARGE INJECTION
vs. VCOM
35
TA = +25°C
30
25
1000
TA = -40°C
ICOM(ON)
100
ICOM(OFF)
0
2
4
6
8
10
10
15
A: V+ = 15V, V- = -15V
B: V+ = 12V, V- = 0
60
30
10
0
1
-30
A
B
-60
-40
12
15
90
0.1
20
10
MAX4659/MAX4660 toc06
40
V+ = +15V
V- = -15V
Q (pC)
TA = +85°C
10,000
MAX4659/MAX4660 toc05
45
MAX4659/MAX4660 toc04
50
OFF-LEAKAGE (pA)
-15
10
35
60
85
-15
-10
-5
0
5
VCOM (V)
TEMPERATURE (°C)
VCOM (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(SINGLE SUPPLY)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
AND TEMPERATURE
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
1200
900
600
300
200
DUAL SUPPLIES
VCOM = 3V,
ISWITCH = 100mA,
IN = GND
160
B
120
A: I+, TA = -40°C
B: I+, TA = +25°C
C: I+, TA = +85°C
D: I-, TA = -40°C
E: I-, TA = +25°C
F: I-, TA = +85°C
80
40
0
A
C
F
0
0
5
10
15
20
25
SUPPLY VOLTAGE (V)
30
35
40
E
D
0
5
10
SUPPLY VOLTAGE (V)
1
MAX4659/MAX4660 toc09
V- = 0
SUPPLY CURRENT (µA)
MAX4659/MAX4660 toc07
1500
TOTAL HARMONIC DISTORTION (%)
0
C
20
A: V+ = +4.5V, V- = -4.5V D: V+ = +15V, V- = -15V
B: V+ = +10V, V- = -10V E: V+ = +20V, V- = -20V
C: V+ = +12V, V- = -12V
5
25
MAX4659/MAX4660 toc08
10
D
C
B
30
30
RON (Ω)
RON (Ω)
RON (Ω)
30
20
RON (Ω)
A
45
35
SUPPLY CURRENT (µA)
A: V+ = +9V, V- = 0
B: V+ = +12V, V- = 0
C: V+ = +24V, V- = 0
D: V+ = +36V, V- = 0
E: V+ = +40V, V- = 0
MAX4659/MAX4660 toc03
50
MAX4659/MAX4660 toc01
55
ON-RESISTANCE vs. VCOM
AND TEMPERATURE (DUAL SUPPLIES)
MAX4659/MAX4660 toc02
ON-RESISTANCE vs. VCOM
(DUAL SUPPLIES)
V+ = 15V
V- = -15V
5VRMS SIGNAL
600Ω SOURCE AND
BW = 80kHz
0.1
0.01
0.0001
15
10
100
1k
10k
100k
FREQUENCY (Hz)
_______________________________________________________________________________________
5
MAX4659/MAX4660
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
LOGIC LEVEL THRESHOLD
VOLTAGE vs. SUPPLY VOLTAGE
2.6
-60
OFF-ISOLATION
2.2
1.8
-70
CROSSTALK
-80
1.4
-90
-100
V+ = 15V, V- = -15V
-110
0.01
0.1
1
10
100
0
5
10
15
20
25
30
35
5
40
7
9
RL = 200Ω
CL = 35pF
13
15
SUPPLY CURRENT vs.
VOLTAGE ACROSS SWITCH
3000
30
V+ = +15V,
V- = -15V
2500
2000
I + (µA)
40
11
V+, V- (V)
V+ (V)
MAX4659/MAX4660 toc13
BREAK-BEFORE-MAKE DELAY (ns)
100
1.0
1000
BREAK-BEFORE-MAKE DELAY vs.
SUPPLY VOLTAGE
50
150
50
FREQUENCY (MHz)
60
200
MAX4659/MAX4660 toc14
-50
VTH (V)
-40
RL = 200Ω
CL = 35pF
250
TRANSITION TIME (ns)
BW = 225MHz
-30
300
MAX4659/MAX4660 toc11
ON-RESPONSE
-20
3.0
MAX4659/MAX4660 toc10
0
-10
TRANSISTION TIME vs.
SUPPLY VOLTAGE
MAX4659/MAX4660 toc12
FREQUENCY RESPONSE
LOSS (dB)
MAX4659/MAX4660
High-Current, 25Ω, SPDT, CMOS
Analog Switches
1500
20
1000
10
500
0
0
5
7
9
11
13
15
IV+, V- (V)
-10
-5
0
5
10
VCOM - VN_ (mV)
Pin Description
PIN
1
6
NAME
COM
FUNCTION
Analog Switch Common
2
NC
3
GND
Normally Closed Switch Terminal. NC is connected to COM when IN is low.
4
V+
5
N.C.
6
IN
Digital Control Input
7
V-
Negative Supply Voltage Input
8
NO
Normally Open Switch Terminal. NO is connected to COM when IN is high.
Ground
Positive Supply Voltage Input
No Connection
_______________________________________________________________________________________
High-Current, 25Ω, SPDT, CMOS
Analog Switches
The MAX4659/MAX4660 are single, single-pole/doublethrow (SPDT) CMOS analog switches. The CMOS
switch construction provides rail-to-rail signal handling
while consuming very little power. The switch is controlled by a TTL/CMOS level compatible digital input.
The MAX4659/MAX4660 have a normally open switch
and a normally closed switch.
These devices can be operated with either single
power supplies or dual power supplies. Operation at up
to ±20V supplies allows users a wide switching dynamic range. Additionally, asymmetrical operation is possible to tailor performance to a particular application.
These switches have been specifically designed to
handle high switch currents, up to 200mA peak current
and 150mA continuous currents. In order to do this, a
new technique is used to drive the body of the output
N-channel device. (Note: The basic switch between the
input, NC/NO terminal and the output common terminal
consists of an N-channel MOSFET and a P-channel
MOSFET in parallel.) The standard method limits operation to approximately a 600mV drop across the switch.
More than 600mV causes an increase in IdON leakage
current (due to the turn-on of on-chip parasitic diodes),
and an increase in V+ supply current. With this new
sensing method, there is no limitation to the voltage
drop across the switch. Current and voltage are limited
only by the power dissipation rating of the package and
the absolute maximum ratings of the switch.
When the analog input voltage drop is approximately
7mV there is an increase in power supply current from
90µA to 2mA (typ) within a 1mV to 7mV range, caused
by the new sensing/driving circuitry.
Applications Information
Overvoltage Protection
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.
First, connect GND, followed by V+, V-, and the remaining pins. If power-supply sequencing is not possible,
add two small-signal diodes (D1, D2) in series with
supply pins (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 V- should not exceed 44V. The protection diode for the negative supply is not required when
V- is connected to GND.
Off-Isolation at High Frequencies
In 50Ω systems, the high-frequency on-response of
these parts extends from DC to above 100MHz, with a
typical loss of -2dB. When the switch is turned off, however, it behaves like a capacitor and off-isolation
decreases with increasing frequency. This effect is
more pronounced with higher source and load impedances. Above 5MHz, circuit board layout becomes critical. The graphs shown in the Typical Operating
Characteristics were taken using a 50Ω source and
load connected with BNC connectors.
V+
D1
V+
N_
COM
Vg
VD2
V-
Figure 1. Overvoltage Protection Using Blocking Diodes
_______________________________________________________________________________________
7
MAX4659/MAX4660
Detailed Description
MAX4659/MAX4660
High-Current, 25Ω, SPDT, CMOS
Analog Switches
Test Circuits/Timing Diagrams
MAX4659/MAX4660
V+
LOGIC
INPUT
t R < 20ns
t F < 20ns
+3V
50%
VNC
0
VNO
t TRANS
t TRANS
VNC
SWITCH VO
OUTPUT
0.9V NO
NC V+
VO
COM
NO
IN
LOGIC
INPUT
0.9V NC
CL
35pF
RL
300 Ω
GND
VV-
V NO
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 2. Functional Diagram
V+
MAX4659/MAX4660
LOGIC
INPUT
V+
NC
+3V
50%
0
VOUT
COM
+3V
NO
RL
300Ω
IN
LOGIC
INPUT
GND
CL
35pF
V-
SWITCH
OUTPUT
(VOUT)
V-
0.9 ✕ VOUT
tBBM
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Time
V+
∆VO
MAX4659/MAX4660
V+
COM
VO
V GEN
GND
NC OR
NO
V-
IN
OFF
ON
OFF
Q = (∆V O )(C L )
VVIN = +3V
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 4. Charge Injection
8
_______________________________________________________________________________________
VO
CL
1nF
High-Current, 25Ω, SPDT, CMOS
Analog Switches
MAX4659/MAX4660
V+
C
SIGNAL
GENERATOR
V+
C
V+
MAX4659/MAX4660
V+
COM
COM
VIN
IN
ANALYZER
IN
V IN
CAPACITANCE
METER
NC OR NO
GND
NC OR NO
V-
C
RL
f = 1MHz
GND
C
V-
V-
V-
Figure 5. Off-Isolation
Figure 7. Channel Off-Capacitance
SIGNAL
GENERATOR
MAX4659/MAX4660
MAX4659/MAX4660
V+
V+
50Ω
NC
COM
VIN
V+
C
V+
C
COM
CAPACITANCE
METER
IN
IN
V IN
f = 1MHz
NO
ANALYZER
NC OR NO
GND
V-
RL
C
GND
V-
Figure 6. Crosstalk
V-
C
V-
Figure 8. Channel On-Capacitance
Chip Information
TRANSISTOR COUNT: 45
PROCESS: CMOS
_______________________________________________________________________________________
9
MAX4659/MAX4660
Test Circuits/Timing Diagrams (continued)
High-Current, 25Ω, SPDT, CMOS
Analog Switches
8L, µMAX, EXP PAD.EPS
MAX4659/MAX4660
Package Information
10
______________________________________________________________________________________
High-Current, 25Ω, SPDT, CMOS
Analog Switches
SOICN.EPS
______________________________________________________________________________________
11
MAX4659/MAX4660
Package Information (continued)
High-Current, 25Ω, SPDT, CMOS
Analog Switches
8LUMAXD EPS
MAX4659/MAX4660
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
© 2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.