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參數(shù)資料
| 型號： | MAX305MLP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Precision, Dual, High-Speed Analog Switches |
| 中文描述： | DUAL 2-CHANNEL, DBL POLE SGL THROW SWITCH, QCC20 |
| 封裝： | LCC-20 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 93K |
| 代理商： | MAX305MLP |
M
________________________________________________________________________________________
5
Prec ision, Dual, High-S peed Analog S witc hes
____________________Pin Desc riptions
__________Applic ations Information
Operation with Supply Voltages
Other than ±15V
The MAX301/MAX303/MAX305 switches operate with
±4.5V to ±20V bipolar supplies and a +10V to +30V 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. The usual
on-resistance temperature coefficent is 0.5%/°C (typ).
Logic Inputs
The MAX301/MAX303/MAX305 operate with a single pos-
itive supply or with bipolar supplies. The devices maintain
TTL compatibility with supplies anywhere in the ±4.5V to
±20V range as long as V
= +5V. If V
is connected to V+
or another supply at voltages other than +5V, the devices
will operate at CMOS-logic level inputs.
Overvoltage Protection
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 VL, V-, and
logic inputs. If power-supply sequencing is not possible,
add two small signal diodes in series with the supply pins
for overvoltage protection (Figure 1). Adding diodes
reduces the analog signal range to 1V below V+ and 1V
below V-, but low switch resistance and low leakage char-
acteristics are unaffected. Device operation is
unchanged, and the difference between V+ to V- should
not exceed +44V.
DIP/SO
NAME
FUNCTION
1, 8
COM1,
COM2
Drain (Analog Signal)
2-7
N.C.
Not internally connected
9, 16
NC1,
NC2
IN2, IN1
Source (Analog Signal)
10, 15
Digital Logic Inputs
Positive Supply-Voltage
Input—connected to
substrate
Logic Supply-Voltage Input
Ground
11
V+
12
13
V
L
GND
Negative Supply Voltage
Input
14
V-
2, 10
1, 3-9, 11,
16
5, 7, 12,
20
13, 19
14
15
17
18
LCC
NAME
FUNCTION
1, 8, 3, 6
2, 4, 8, 10
1, 3, 6, 9,
11, 16
COM_
Drain (Analog Signal)
2-7
N.C.
Not internally connected
11
14
V+
Positive Supply-Voltage
Input—connected to
substrate
Logic Supply-Voltage Input
Ground
Negative Supply Voltage
Input
Digital Logic Inputs
12
13
15
17
V
L
GND
14
18
V-
15, 10
19, 13
5, 7, 12,
20
IN1, IN2
NC_,
NO_
16, 9, 5, 4
Source (Analog Signal)
LCC
NAME
FUNCTION
1, 8, 3, 6
2, 4, 8, 10
1, 3, 6, 9,
11, 16
COM_
Drain (Analog Signal)
2-7
N.C.
Not internally connected
11
14
V+
Positive Supply-Voltage
Input—connected to
substrate
Logic Supply-Voltage Input
Ground
Negative Supply Voltage
Digital Logic Inputs
12
13
14
15
17
18
V
L
GND
V-
IN1, IN2
15, 10
19, 13
5, 7, 12,
20
16, 9, 5, 4
NO_
Source (Analog Signal)
V
g
NO_
V+
COM_
V-
Figure 1. Overvoltage Protection Using Blocking Diodes
MAX301 PIN
LCC
MAX303 PIN
DIP/SO
MAX305 PIN
DIP/SO
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