MAX4621 Maxim, MAX4621 Datasheet - Page 7

• Manufacturer Part Number: MAX4621
• Description: The MAX4621/MAX4622/MAX4623 are precision, dual, high-speed analog switches
• Manufacturer: Maxim

MAX4621
MAX4622
MAX4623
4, 5, 9, 16
4, 5, 9, 16
1, 3, 6, 8
1, 3, 6, 8
10, 15
10, 15
10, 15
9, 16
PIN
1, 8
2–7
2, 7
2, 7
11
12
13
14
11
12
13
14
11
12
13
14
NO2, NO1
NC_, NO_
IN2, IN1
IN2, IN1
IN2, IN1
COM1,
NAME
COM2
COM_
COM_
_______________________________________________________________________________________
GND
GND
GND
N.C.
N.C.
N.C.
NO_
V+
V+
V+
V
V
V
V-
V-
V-
L
L
L
Switch Common Terminal
Not internally connected
Switch Normally Open
Terminal
Digital Logic Inputs
Positive Supply-Voltage Input
Logic Supply-Voltage Input
Ground
Negative Supply Voltage
Input
Switch Common Terminal
Not internally connected
Switch Normally Closed/Open
Terminal
Digital Logic Inputs
Positive Supply-Voltage Input
Logic Supply-Voltage Input
Ground
Negative Supply Voltage
Input
Switch Common Terminal
Not internally connected
Switch Normally Open
Terminal
Digital Logic Inputs
Positive Supply-Voltage Input
Logic Supply-Voltage Input
Ground
Negative Supply Voltage
Pin Description
FUNCTION
Dual, 5 Ω Analog Switches
The MAX4621/MAX4622/MAX4623 switches operate with
±4.5V to ±18V bipolar supplies and a +4.5V to +36V sin-
gle supply. In either case, analog signals ranging from
V+ to V- can be switched. The Typical Operating
Characteristics graphs show the typical on-resistance
variation with analog signal and supply voltage.
Proper power-supply sequencing is recommended for all
CMOS devices. It is important not to exceed the absolute
maximum ratings because stresses beyond the listed rat-
ings may cause permanent damage to the devices.
Always sequence V+ on first, followed by V
logic inputs. If power-supply sequencing is not possible,
add two small signal diodes in series with the supply pins
and a Schottky diode between V+ and V
Adding diodes reduces the analog signal range to 1V
below V+ and 1V above V-, but low switch resistance and
low leakage characteristics are unaffected. The differ-
ence between V+ and V- should not exceed +44V.
Figure 1. Overvoltage Protection Using Blocking Diodes
*INTERNAL PROTECTION DIODES
V
V
L
g
Applications Information
Operation with Supply Voltages
NO_
*
*
Overvoltage Protection
V+
V-
Other than ±15V
*
*
COM_
MAX4621
MAX4622
MAX4623
L
(Figure 1).
L
, V-, and
7