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MAX4680CPE

P1-P3P4-P6P7-P9P10-P12
MAX4680/MAX4690/MAX4700
1.25
Ω
, Dual SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 7
Pin Description
NAME FUNCTION
MAX4680
9, 16 NC2, NC1 Analog Switch Normally Closed Terminals
13 V+ Positive Analog Supply Input
– NO1 Analog Switch Normally Open Terminal
– NC1 Analog Switch Normally Closed Terminal
– NO2, NO1 Analog Switch Normally Open Terminals
MAX4690
–
13
–
–
9, 16
MAX4700
PIN
–
13
16
9
–
IN1, IN2 Logic-Control Digital Inputs
1, 3, 6, 8,
10, 15
N.C.
No connection. Not internally connected. Connect to GND or low-
impedance point to improve on/off-isolation.
1, 3, 6, 8,
10, 15
1, 3, 6, 8,
10, 15
2, 7 2, 7 2, 7
5 GND Ground5 5
4 V-
Negative Analog Supply Voltage Input. Connect to GND for single-
supply operation.
4 4
12 V
L
Logic Supply Input12 12
11, 14 COM2, COM1 Analog Switch Common Terminals11, 14 11, 14
MAX4680/MAX4690/MAX4700
1.25
Ω
, Dual SPST,
CMOS Analog Switches
8 _______________________________________________________________________________________
___________Applications Information
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs, NO, or COM. If power-supply sequencing
is not possible, add two small signal diodes (D1, D2) in
series with the supply pins and a Schottky diode
between V+ and V
L
for overvoltage protection (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.
COM_
V
L
V-
V+
NO_
* INTERNAL PROTECTION DIODES
D2
D1
-15V
+15V
MAX4680
MAX4690
MAX4700
*
*
*
*
t
r
< 20ns
t
f
< 20ns
50%
0
LOGIC
INPUT
V-
-15V
R
L
100Ω
NO_
OR NC_
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
SWITCH
INPUT
IN_
+3V
t
OFF
0
COM_
SWITCH
OUTPUT
0.9V
0
0.9V
0
t
ON
V
O
SWITCH
OUTPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
V
L
V+
C
L
35pF
+5V
+15V
V
O
V
COM_
0
REPEAT TEST FOR EACH SWITCH. FOR LOAD
CONDITIONS, SEE
Electrical Characteristics.
MAX4680
MAX4690
MAX4700
V
O
= V
COM
( )
R
L
+ R
ON
R
L
Figure 1. Overvoltage Protection Using External Blocking Diodes
Figure 2. Switching-Time Test Circuit
MAX4680/MAX4690/MAX4700
1.25
Ω
, Dual SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 9
50%
0.9 · V
0UT1
+3V
0V
0V
LOGIC
INPUT
SWITCH
OUTPUT 2
(V
OUT2
)
0V
0.9 · V
OUT2
t
D
t
D
LOGIC
INPUT
V-
-15V
R
L2
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
IN_
COM1
V
OUT2
V+
+15V
C
L2
V
COM1
R
L1
V
OUT1
C
L1
R
L
= 100Ω
C
L
= 35pF
NO
NC
SWITCH
OUTPUT 1
(V
OUT1
)
MAX4700
V
COM2
COM2
Figure 3. Break-Before-Make Interval (MAX4700 only)
V
GEN
GND
NC_ OR
NO_
C
L
V
O
-15V
V-
V+
V
O
V
IN
OFF
ON
OFF
∆V
O
Q = (∆V
O
)(C
L
)
COM_
+5V
V
IN
DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
OFF
ON
OFF
V
IN
V
IN
= +3V
+15V
R
GEN
IN
V
L
MAX4680
MAX4690
MAX4700
Figure 4. Charge-Injection Test Circuit
P1-P3P4-P6P7-P9P10-P12

MAX4680CPE

Mfr. #:
Buy MAX4680CPE
Manufacturer:
Maxim Integrated
Description:
Analog Switch ICs 1.25Ohm, Dual, SPST, CMOS Analog Switch
Lifecycle:
New from this manufacturer.
Delivery:
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