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MAX4633
User Manual
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MAXIM MAX4631, MAX4632, MAX4633 User Manual

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General Description
The MAX4631/MAX4632/MAX4633 high-voltage, dual analog switches are pin compatible with the industry-stan­dard DG401/DG403/DG405. They upgrade the existing devices with fault-protected inputs and Rail-to-Rail®signal handling capabilities. The MAX4631/MAX4632/MAX4633’s normally open (NO) and normally closed (NC) terminals are protected from overvoltage faults up to 36V during power-up or power-down. During a fault condition, these terminals become open circuit and only nanoamperes of leakage current flow from the source, yet the switch output (COM_) continues to furnish up to 18mA of the appropri­ate polarity supply voltage to the load. This ensures unam­biguous rail-to-rail outputs when a fault begins and ends. On-resistance is 85Ω (max) at +25°C and is matched between switches to 6Ω (max). Off-leakage current is only
0.5nA at +25°C and 5nA at +85°C. The MAX4631 has two NO single-pole/single-throw (SPST)
switches. The MAX4632 has two NO/NC single-pole/ double-throw (SPDT) switches. The MAX4633 has two NO double-pole/single-throw (DPST) switches.
These CMOS switches operate with dual power supplies ranging from ±4.5V to ±18V or a single supply between +9V and +36V. All digital inputs have +0.8V and +2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using ±15V or a single +12V supply.
Applications
ATE Equipment Data Acquisition Industrial and Process Control Systems Avionics Redundant/Backup Systems
Features
♦ Fault Protection
±40V with Power Off ±36V with ±15V Supplies (MAX4631/MAX4633) ±25V with ±15V Supplies (MAX4632)
♦ Rail-to-Rail Signal Handling ♦ No Power-Supply Sequencing Required ♦ All Switches Off with Power Off ♦ Output Clamped to Appropriate Supply Voltage
During Fault Condition; No Transition Glitch
♦ 85Ω (max) Signal Paths with ±15V Supplies ♦ ±4.5V to ±18V Dual Supplies
+9V to +36V Single Supply
♦ Low Power Consumption: <6mW ♦ Pin Compatible with Industry-Standard
DG401/DG403/DG405
♦ TTL- and CMOS-Logic Compatible Inputs with
Single +9V to +15V, or ±15V Supplies
MAX4631/MAX4632/MAX4633
Fault-Protected, High-Voltage,
Dual Analog Switches
________________________________________________________________
Maxim Integrated Products
1
19-1515; Rev 0; 7/99
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pin Configurations appear at end of data sheet.
PART
MAX4631CSE
MAX4631CPE MAX4631ESE -40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
16 Narrow SO 16 Plastic DIP
16 Narrow SO MAX4631EPE MAX4631MJE MAX4632CSE
0°C to +70°C
-55°C to +125°C
-40°C to +85°C 16 Plastic DIP 16 CERDIP 16 Narrow SO
MAX4632CPE MAX4632ESE MAX4632EPE -40°C to +85°C
-40°C to +85°C
0°C to +70°C 16 Plastic DIP
16 Narrow SO 16 Plastic DIP
MAX4632MJE MAX4633CSE MAX4633CPE 0°C to +70°C
0°C to +70°C
-55°C to +125°C 16 CERDIP 16 Narrow SO 16 Plastic DIP
MAX4633ESE MAX4633EPE MAX4633MJE -55°C to +125°C
-40°C to +85°C
-40°C to +85°C 16 Narrow SO 16 Plastic DIP 16 CERDIP
MAX4631/MAX4632/MAX4633
Fault-Protected, High-Voltage, Dual Analog Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +15V, V- = -15V, V
INL_
= 0.8V, V
INH_
= 2.4V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
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.
(Voltages referenced to GND)
V+...........................................................................-0.3V to +44V
V- ............................................................................-44V to +0.3V
V+ to V-...................................................................-0.3V to +44V
COM_, IN_ (Note 1) ..............................(V- - 0.3V) to (V+ + 0.3V)
NC_, NO_ (Note 2)
MAX4631_ _E .....................................(V+ - 36V) to (V- + 36V)
MAX4632_ _E .....................................(V+ - 25V) to (V- + 25V)
MAX4633_ _E .....................................(V+ - 36V) to (V- + 36V)
NC_, NO_ to COM_
MAX4631_ _E ......................................................-36V to +36V
MAX4632_ _E ......................................................-25V to +25V
MAX4633_ _E ......................................................-36V to +36V
Continuous Current into Any Terminal..............................±30mA
Peak Current into Any Terminal (pulsed at 1ms,
10% duty cycle)............................................................±50mA
Continuous Power Dissipation (TA= +70°C) (Note 2)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Narrow SO (derate 8.70mW/°C above +70°C) ............696mW
CERDIP (derate 10.00mW/°C above +70°C)...............842mW
Operating Temperature Ranges
MAX463_C_E ......................................................0°C to +70°C
MAX463_E_E ...................................................-40°C to +85°C
MAX463_M_E ................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: COM_ and IN_ pins are not fault protected. Signals on COM_ to IN_ exceeding V+ or V- are clamped by internal diodes.
Limit forward diode current to maximum current rating.
Note 2: NC_ and NO_ pins are fault protected (see
Electrical Characteristics
). With power applied to V+ or V-, signals on NC_ or NO_ exceeding ±25V (MAX4632) or ±36V (MAX4631/MAX4633) may damage the device. With V+ = V- = 0, signals on NC_ or NO_ exceeding ±40V may damage the device.
T
A
PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS
C, E, M
Fault-Free Analog Signal Range (Note 2)
V
NO_,VNC_
V- V+ V
C, E 100
M 200
Ω
+25°C
COM_ to NO_ or NC_ On-Resistance
R
ON
62 85
V
COM_
= ±10V,
I
COM_
= 1mA
C, E 10
M 15
Ω
+25°C
COM_ to NO_ or NC_ On-Resistance Match Between Channels (Note 4)
∆R
ON
36
V
COM_
= ±10V,
I
COM_
= 1mA
C, E -5 5
M -100 100
nA
+25°C
NO_, NC_, COM_ Off-Leakage Current (Note 5)
I
NO_ (OFF)
,
I
NC_ (OFF)
,
I
COM_(OFF)
-0.5 0.01 0.5
V
COM_
= ±14V,
V
NO_
or V
NC_
=
−
+14V
C, E -20 20
M -100 100
nA
+25°C
COM_ On-Leakage Current (Note 5)
I
COM_(ON)
-0.5 0.01 0.5
V
COM_
= ±14V,
V
NO_
or V
NC_
= ±14V
or floating
C, E, M -36 36
V
Fault-Protected Analog Signal Range (Note 2)
V
NO_
, V
NC_
Applies with power on
C, E, M -25 25 C, E, M -40 40Applies with power off
MAX4631/ MAX4633
MAX4632
ANALOG SWITCH
FAULT PROTECTION
MAX4631/MAX4632/MAX4633
Fault-Protected, High-Voltage,
Dual Analog Switches
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
INL_
= 0.8V, V
INH_
= 2.4V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
C, E -200 200
M -10 10
nA
+25°C
T
A
C, E
NO_ or NC_ Input Leakage Current, Supplies On
I
NO_
, I
NC_
PARAMETER SYMBOL MIN TYP MAX UNITS
-200 200
-20 20
V
NO_
or V
NC_
= ±25V,
V
COM_
= ±10V
M
C, E -200 200
-1 1
nA
M
CONDITIONS
+25°C
COM_ Output Leakage Current, Supplies On
I
COM_
-10 10
-10 10
V
NO_
or V
NC_
= ±25V, no connection to “on” channel (MAX4632 only)
nA
+25°C
NO_ or NC_ Input Leakage Current, Supplies Off
I
NO_
, I
NC_
-20 20
V
NO_
or V
NC_
= ±40V,
-24 -18 13
mA
+25°C
COM_ Output Clamp Current, Supplies On
I
COM_
13 18 24V
NO_
or V
NC_
= +25V
C, E, M 2.4 VIN_ Input Logic Voltage High V
INH_
C, E, M -5 5
µA
µA
µA
+25°CV
NO_
or V
NC_
= -25V
kΩ+25°C
COM_ Output Clamp Resistance, Supplies On
R
COM_
0.5 1V
NO_
or V
NC_
= ±25V
C, E, M 0.8 VIN_ Input Logic Voltage Low V
INL_
+25°C -1 0.03 1
µA
IN_ Input Current Logic High or Low
I
INH_
, I
INL_VIN_
= 0.8V or 2.4V
ns
+25°C 100 150
V
COM_
= ±10V, RL= 1kΩ,
Figure 2
t
ON
C, E, 500Turn-On Time
M 600
ns
+25°C 50 100
V
COM_
= ±10V, RL= 1kΩ,
Figure 2
t
OFF
C, E, 400Turn-Off Time
M 500
ns+25°C 10 40
V
COM_
= ±10V, RL= 1kΩ,
Figure 3
t
BBM
Break-Before-Make Time Delay (MAX4632 only)
pC+25°C 510
CL= 100pF, Figure 4, NO_ = NC_ = GND, RS= 0
QCharge Injection (Note 6)
pFC, E, M 18
NO_ = NC_ = GND, f = 1MHz, Figure 5
C
NC_(OFF)
,
C
NO_(OFF)
NO_, NC_ Off- Capacitance
pFC, E, M 18
COM_ = GND, f = 1MHz, Figure 5
C
COM_(OFF)
COM_ Off-Capacitance
pFC, E, M 22
COM_ = NO_ = NC_ = GND, f = 1MHz, Figure 5
C
COM_(ON)
COM_ On-Capacitance
LOGIC INPUT
SWITCH DYNAMIC CHARACTERISTICS
MAX4631/MAX4632/MAX4633
Fault-Protected, High-Voltage, Dual Analog Switches
4 _______________________________________________________________________________________
C, E, M
VC, E, M
T
A
Power-Supply Range V+, V-
PARAMETER SYMBOL MIN TYP MAX UNITS
±4.5 ±18
C, E, M 550
dB
CONDITIONS
C, E, M
Off-Isolation (Note 7)
V
ISO
-62
RL= 50Ω, CL= 15pF, V
NO_
= V
NC_
= 1V
RMS
,
f = 1MHz, Figure 6
µA
+25°C
V+ Supply Current
I+
230 325
All V
IN_
= 0 or 5V,
V
NO_
or V
NC_
= 0
10
µA
+25°C
GND Supply Current I
GND
-1 0.01 1
All V
IN_
= 0 or 15V,
V
NO_
or V
NC_
= 0
dBC, E, M
Channel-to-Channel Crosstalk (Note 8)
V
CT
-66
RL= 50Ω, CL= 15pF, V
NO_
= V
NC_
= 1V
RMS
,
f = 1MHz, Figure 7
C, E, M 300
µA
+25°C
V- Supply Current
I-
130 200
All V
IN_
= 0 or 5V,
V
NO_
or V
NC_
= 0
C, E, M 300
+25°C 125 175
All V
IN_
= 5V,
V
NO_
or V
NC_
= 0
C, E, M
Fault-Free Analog Signal Range (Note 2)
V
NO_
, V
NC_
0V+V
C, E 20
M 30
Ω
+25°C
T
A
C, E
COM_ to NO_ or NC_ On-Resistance Match Between Channels (Note 4)
∆R
ON
PARAMETER SYMBOL MIN TYP MAX UNITS
250
410
V
COM_
= 10V,
I
COM_
= 1mA
M
C, E -10 10
300
Ω
M
CONDITIONS
+25°C
COM_ to NO_ or NC_ On-Resistance
R
ON
125 200
-200 200
V
COM_
= 10V,
I
COM_
= 1mA
nA
+25°C
NO_, NC_, COM_ Off-Leakage Current (Notes 5, 9)
I
NO_ (OFF)
,
I
NC_ (OFF)
-0.5 0.01 0.5
V
COM_
= 10V,
V
NO_
or V
NC_
= 12V
C, E -20 20
M -400 400
nA
+25°C
COM_ On-Leakage Current (Notes 5, 9)
I
COM_(ON)
-0.5 0.01 0.5
V
COM_
= 10V,
V
NO_
or V
NC_
= 1V or 12V
C, E, M -36 36
MAX4632
V
Fault-Protected Analog Signal Range (Note 2)
V
NO_
, V
NC_
Applies with power on
C, E, M -25 25 C, E, M -40 40Applies with power off
MAX4631/ MAX4633
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
INL_
= 0.8V, V
INH_
= 2.4V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +15V, V- = -15V, V
INL_
= 0.8V, V
INH_
= 2.4V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
POWER SUPPLY
ANALOG SWITCH
FAULT PROTECTION
V
IN_
= 0.8V or 2.4V
MAX4631/MAX4632/MAX4633
Fault-Protected, High-Voltage,
Dual Analog Switches
_______________________________________________________________________________________ 5
µA
µA
ns
C, E -100 100
M -10 10
nA
T
A
C, E
I
NO_
, I
NC_
PARAMETER SYMBOL MIN TYP MAX UNITS
-10 10
V
NO_
or V
NC_
= ±25V, V
COM_
= ±10V
M -1 1
nA
CONDITIONS
COM_ Output Leakage Current, Supplies On
I
COM_
V
NO_
or V
NC_
= ±25V, no connection to “on” channel (MAX4632 only)
+25°C
kΩ
mA+25°C
COM_ Output Clamp Current, Supplies On
I
COM_
4 5.5 10V
NO_
or V
NC_
= 25V
C, E, M 2.4
140 250
+25°C
VIN_ Input Logic Voltage High V
INH_
C, E, M
C, E, M -5 5
COM_ Output Clamp Resistance, Supplies On
R
COM_
1 2.5
V
COM_
= ±10V, RL= 2kΩ,
Figure 2
V
NO_
or V
NC_
= 25V
t
ON
ns
0.8 VIN_ Input Logic Voltage Low V
INL_
+25°C -1 0.03 1 µA
IN_ Input Current Logic High or Low
I
INH_
, I
INL_VIN_
= 0.8V or 2.4V
+25°C 100 200
C, E, 300
V
COM_
= ±10V, RL= 2kΩ,
Figure 2
t
OFF
C, E,
Turn-On Time
250
M 500
Turn-Off Time
pC
M 400
ns+25°C 540
V
COM_
= ±10V, RL= 2kΩ,
Figure 3
t
BBM
+25°C 5
Break-Before-Make Time Delay (MAX4632 only)
CL= 100pF, Figure 4, NO_ = NC_ = GND, RS= 0
QCharge Injection (Note 6)
pFC, E, M 20
NO_ = NC_ = GND, f = 1MHz, Figure 5
C
NC_(OFF)
,
C
NO_(OFF)
NO_, NC_ Off-Capacitance
pFC, E, M 20
COM_ = GND, f = 1MHz, Figure 5
C
COM_(OFF)
COM_ Off-Capacitance
pFC, E, M 25
COM_ = NO_ = NC_ = GND, f = 1MHz, Figure 5
C
COM_(ON)
COM_ On-Capacitance
ELECTRICAL CHARACTERISTICS—Single Supply (continued)
(V+ = +15V, V- = -15V, V
INL_
= 0.8V, V
INH_
= 2.4V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
NO_ or NC_ Input Leakage Current, Supplies On
dBC, E, M -62
RL= 50Ω, CL= 15pF, V
NO_
= V
NC_
= 1V
RMS
,
f = 1MHz, Figure 6
V
ISO
Off-Isolation (Note 7)
dBC, E, M -65
RL= 50Ω, CL= 15pF, V
NO_
= V
NC_
= 1V
RMS
,
f = 1MHz, Figure 7
V
CT
Channel-to-Channel Crosstalk (Note 8)
µA
C, E -100 1 100
M -10 10
nA
I
NO_
, I
NC_VNO_
or V
NC_
= ±40V
NO_ or NC_ Input Leakage Current, Supplies Off
LOGIC INPUT
µA
SWITCH DYNAMIC CHARACTERISTICS
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