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參數(shù)資料
| 型號(hào)： | MAX4599EUT-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Low-Voltage, Single-Supply, SPDT Analog Switch in SC70 |
| 中文描述： | 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 128K |
| 代理商： | MAX4599EUT-T |
Applications Information
Analog Signal Levels
Analog signals can range over the supply voltage (V+
to GND) with on-resistance changing very little over the
entire range (see
Typical Operating Characteristics
).
The MAX4599 is bidirectional, so the NO, NC, and
COM pins can be used either as inputs or outputs.
Power-Supply Sequencing and
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals or logic inputs, especially if the analog
or logic signals are not current limited. If this sequenc-
ing is not possible, and if the analog or logic inputs are
not current limited to < 20mA, add a small-signal diode
(D1) as shown in Figure 1. If the analog signal can dip
below GND, add D2. Adding protection diodes
reduces the analog signal range to a diode drop (about
0.7V) below V+ for D1 or to a diode drop above ground
for D2. The addition of diodes does not affect leakage.
On-resistance increases by a small amount at low sup-
ply voltages. Maximum supply voltage (V+) must not
exceed 6V.
Protection diodes D1 and D2 also protect against some
overvoltage situations. A fault voltage up to the
absolute maximum rating at an analog signal input
does not damage the device, even if the supply voltage
is below the signal voltage.
M
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
6
_______________________________________________________________________________________
-95
0.01
0.1
1
10
100 200
FREQUENCY RESPONSE
-75
M
FREQUENCY (MHz)
L
-55
-35
-15
-25
-45
-65
-85
-5
ON-RESPONSE
OFF-ISOLATION
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
1
0.01
0.01
0.1
100
1
10
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
0.1
M
FREQUENCY (kHz)
T
R
L
= 600
V
IN
= 5V
P-P
V
IN
= 3V
P-P
NAME
FUNCTION
1
IN
Digital Control Input
2
V+
Positive Supply Voltage
PIN
3
GND
Ground
4
NC
Analog Switch Normally Closed
6
NO
Analog Switch Normally Open
5
COM
Analog Switch Common
Pin Description
POSITIVE SUPPLY
COM
NO
OR
NC
D2
D1
GND
Vg
V+
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
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