, Dual, SPST, CMOS Analog Switches 8 ______________________________________" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉锛� MAX4668CSE
寤犲晢锛� Maxim Integrated Products
鏂囦欢闋佹暩(sh霉)锛� 11/12闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC SWITCH DUAL SPST 16SOIC
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 50
鍔熻兘锛� 闁嬮棞(gu膩n)
闆昏矾锛� 2 x SPST - NO
灏�(d菐o)閫氱媭鎱�(t脿i)闆婚樆锛� 2.5 姝愬
闆诲闆绘簮锛� 鍠�/闆欓浕婧�
闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±)锛� 4.5 V ~ 36 V锛�±4.5 V ~ 20 V
宸ヤ綔婧害锛� 0°C ~ 70°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 16-SOIC锛�0.154"锛�3.90mm 瀵級
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 16-SOIC
鍖呰锛� 绠′欢
MAX4667/MAX4668/MAX4669
2.5
, 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 supply pins (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鈥� low switch resistance and low leak-
age characteristics. Device operation is unchanged,
and the difference between V+ and V- should not
exceed 44V. These protection diodes are not recom-
mended when using a single supply.
Off-Isolation at High Frequencies
With the N.C. pins connected to GND, the high-fre-
quency on-response of these parts extends from DC to
above 100MHz with a typical loss of -2dB. When the
switch is turned off, however, it behaves like a capaci-
tor, and off-isolation decreases with increasing frequen-
cy. (Above 300MHz, the switch actually passes more
signal turned off than turned on.) This effect is more
pronounced with higher source and load impedances.
Above 5MHz, circuit-board layout becomes critical and
it becomes difficult to characterize the response of the
switch independent of the circuit. The graphs shown in
the
Typical Operating Characteristics were taken using
a 50
source and load connected with BNC connectors
to a circuit board deemed 鈥渁verage鈥�; that is, designed
with isolation in mind, but not using stripline or other
special RF circuit techniques. For critical applications
above 5MHz, use the MAX440, MAX441, and MAX442,
which are fully characterized up to 160MHz.
COM_
V-
V+
NO_/NC_
* INTERNAL PROTECTION DIODES
D2
D1
-15V
+15V
MAX4667
MAX4668
MAX4669
*
Figure 1. Overvoltage Protection Using External Blocking
Diodes
Pin Description
13
Positive Analog Supply Voltage Input
V+
13
12
Logic Supply Input
VL
12
14, 11
Analog Switch, Common Terminals
COM1, COM2
14, 11
5
Ground
GND
5
2, 7
Logic-Control Digital Inputs
IN2, IN2
2, 7
鈥�
Analog Switch, Normally Closed Terminal
1, 3, 6, 8,
10, 15
1, 3, 6, 8,
10, 15
No Connection. Not internally connected. Connect to GND as
low impedance to improve on/off-isolation.
鈥�
Analog Switch, Normally Open Terminal
NO1
16
NC1
9
16, 9
鈥�
Analog Switch, Normally Closed Terminals
鈥�
16, 9
Analog Switch, Normally Open Terminals
NO1, NO2
鈥�
NC1, NC2
鈥�
4
Negative Analog Supply Voltage Input. Connect to GND for
single-supply operation.
V-
4
N.C.
NAME
PIN
1, 3, 6, 8,
10, 15
MAX4669
MAX4668
FUNCTION
MAX4667
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MAX4668CSE+ 鍔熻兘鎻忚堪:妯℃摤闁嬮棞(gu膩n) IC 2.5Ohm Quad SPST Analog Switch RoHS:鍚� 鍒堕€犲晢:Texas Instruments 闁嬮棞(gu膩n)鏁�(sh霉)閲�:2 闁嬮棞(gu膩n)閰嶇疆:SPDT 闁嬪暉闆婚樆锛堟渶澶у€硷級:0.1 Ohms 鍒囨彌闆诲锛堟渶澶э級: 闁嬪暉鏅傞枔锛堟渶澶у€硷級: 闂�(gu膩n)闁夋檪闁擄紙鏈€澶у€硷級: 宸ヤ綔闆绘簮闆诲:2.7 V to 4.5 V 鏈€澶у伐浣滄韩搴�:+ 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:DSBGA-16
MAX4668CSE+T 鍔熻兘鎻忚堪:妯℃摤闁嬮棞(gu膩n) IC 2.5Ohm Quad SPST Analog Switch RoHS:鍚� 鍒堕€犲晢:Texas Instruments 闁嬮棞(gu膩n)鏁�(sh霉)閲�:2 闁嬮棞(gu膩n)閰嶇疆:SPDT 闁嬪暉闆婚樆锛堟渶澶у€硷級:0.1 Ohms 鍒囨彌闆诲锛堟渶澶э級: 闁嬪暉鏅傞枔锛堟渶澶у€硷級: 闂�(gu膩n)闁夋檪闁擄紙鏈€澶у€硷級: 宸ヤ綔闆绘簮闆诲:2.7 V to 4.5 V 鏈€澶у伐浣滄韩搴�:+ 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:DSBGA-16
MAX4668CSE-T 鍔熻兘鎻忚堪:妯℃摤闁嬮棞(gu膩n) IC RoHS:鍚� 鍒堕€犲晢:Texas Instruments 闁嬮棞(gu膩n)鏁�(sh霉)閲�:2 闁嬮棞(gu膩n)閰嶇疆:SPDT 闁嬪暉闆婚樆锛堟渶澶у€硷級:0.1 Ohms 鍒囨彌闆诲锛堟渶澶э級: 闁嬪暉鏅傞枔锛堟渶澶у€硷級: 闂�(gu膩n)闁夋檪闁擄紙鏈€澶у€硷級: 宸ヤ綔闆绘簮闆诲:2.7 V to 4.5 V 鏈€澶у伐浣滄韩搴�:+ 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:DSBGA-16
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MAX4668EPE+ 鍔熻兘鎻忚堪:妯℃摤闁嬮棞(gu膩n) IC 2.5Ohm Quad SPST Analog Switch RoHS:鍚� 鍒堕€犲晢:Texas Instruments 闁嬮棞(gu膩n)鏁�(sh霉)閲�:2 闁嬮棞(gu膩n)閰嶇疆:SPDT 闁嬪暉闆婚樆锛堟渶澶у€硷級:0.1 Ohms 鍒囨彌闆诲锛堟渶澶э級: 闁嬪暉鏅傞枔锛堟渶澶у€硷級: 闂�(gu膩n)闁夋檪闁擄紙鏈€澶у€硷級: 宸ヤ綔闆绘簮闆诲:2.7 V to 4.5 V 鏈€澶у伐浣滄韩搴�:+ 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:DSBGA-16