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參數(shù)資料
| 型號(hào)： | DG441 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Improved, Quad, SPST Analog Switches(接通電阻85Ω，漏電流0.50nA，導(dǎo)通速率250ns，改進(jìn)型,四通道單刀單擲模擬開(kāi)關(guān)) |
| 中文描述： | 改進(jìn)的四路、SPST模擬開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 127K |
| 代理商： | DG441 |
__________Applic ations Information
Operation with S upply V oltages
Other T han ±15V
Using supply voltages other than ±15V reduces the
analog signal range. The DG441/DG442 switches oper-
ate with ±4.5V to ±20V bipolar supplies or with a +10V
to +30V single supply; connect V- to 0V when operating
with a single supply. Also, all device types can operate
with unbalanced supplies such as +24V and -5V. The
Typical Operating Characteristics graphs show typical
on-resistance with ±20V, ±15V, ±10V, and ±5V sup-
plies. (Switching times increase by a factor of two or
more for operation at ±5V.)
Overvoltage Protec tion
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, followed by V- and logic
inputs. If power-supply sequencing is not possible, add
two small, external signal diodes in series with supply
pins for overvoltage protection (Figure 1). Adding exter-
nal diodes reduces the analog-signal range to 1V
below V+ and 1V above V-, but low switch resistance
and low leakage characteristics are unaffected. Device
operation is unchanged, and the difference between
V+ and V- should not exceed +44V.
_____________________Pin Desc ription
D
Improved, Quad, S PS T Analog S witc hes
6
_______________________________________________________________________________________
PIN
NAME
FUNCTION
1, 16, 9, 8
IN1–IN4 Input
2, 15, 10, 7
D1–D4
Drain Output
3, 14, 11, 6
S1–S4
Source Output
4
V-
Negative Supply Voltage Input
5
GND
Ground
12
N.C.
Not Internally Connected
13
V+
Positive Supply Voltage Input.
Connected to substrate.
V+
S
V-
D
Vg
Figure 1. Overvoltage Protection Using External Blocking Diodes
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| DG441/883 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Monolithic Quad SPST CMOS Analog Switches |
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