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参数资料
| 型号： | MAX4684EBC+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/10页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPDT 12UCSP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 开关 |
| 电路： | 2 x SPDT |
| 导通状态电阻： | 800 毫欧 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V |
| 电流 - 电源： | 40µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFBGA，WLCSP |
| 供应商设备封装： | 12-UCSP（3x4） |
| 包装： | 标准包装 |
| 其它名称： | MAX4684EBC+TDKR |
MAX4684/MAX4685
0.5
Ω
Ω/0.8Ω
Ω Low-Voltage, Dual SPDT
Analog Switches in UCSP
Detailed Description
The MAX4684/MAX4685 are low on-resistance, low-
voltage, dual SPDT analog switches that operate from a
+1.8V to +5.5V supply. The devices are fully specified
for nominal 3V applications. The MAX4684/MAX4685
have break-before-make switching and fast switching
speeds (tON = 50ns max, tOFF = 40ns max).
The MAX4684 offers asymmetrical normally closed
(NC) and normally open (NO) RON for applications that
require asymmetrical loads (examples include speaker
headsets and internal speakers). The part features a
0.5Ω max RON for its NC switch and a 0.8Ω max RON
for its NO switch at the 2.7V supply. The MAX4685 fea-
tures a 0.8Ω max on-resistance for both NO and NC
switches at the +2.7V supply.
Applications Information
Digital Control Inputs
The MAX4684/MAX4685 logic inputs accept up to
+5.5V regardless of supply voltage. For example, with a
+3.3V supply, IN_ may be driven low to GND and high
to 5.5V. Driving IN_ rail-to-rail minimizes power con-
sumption. Logic levels for a +1.8V supply are 0.5V (low)
and 1.4V (high).
Analog Signal Levels
Analog signals that range over the entire supply voltage
(V+ to GND) are passed with very little change in on-
resistance (see
Typical Operating Characteristics). The
switches are bidirectional, so the NO_, NC_, and COM_
pins can be either inputs or outputs.
Power-Supply Sequencing and
Overvoltage Protection
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to devices.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals, especially if the analog signal is not
current limited. If this sequencing is not possible, and if
the analog inputs are not current limited to <20mA, add
a small signal diode (D1) as shown in Figure 1. Adding
a protection diode reduces the analog range to a diode
drop (about 0.7V) below V+ (for D1). RON increases
slightly at low supply voltages. Maximum supply volt-
age (V+) must not exceed +6V. Protection diode D1
also protects against some overvoltage situations. No
damage will result on Figure 1’s circuit if the supply
voltage is below the absolute maximum rating applied
to an analog signal pin.
POSITIVE SUPPLY
COM
NO
D1
GND
Vg
V+
MAX4684
MAX4685
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
PIN
NAME
UCSP
MAX/TDFN
FUNCTION
NC_
A1, C1
5, 7
Analog Switch—Normally Closed Terminal
IN_
A2, C2
4, 8
Digital Control Input
COM_
A3, C3
3, 9
Analog Switch—Common Terminal
NO_
A4, C4
2, 10
Analog Switch—Normally Open Terminal
V+
B4
1
Positive Supply Voltage Input
GND
B1
6
Ground
EP
—
Exposed Pad. Connect EP to GND (for TDFN only.)
Pin Description
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4684EBC-T10 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4684ETB | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX4684ETB+ | 制造商:Maxim Integrated Products 功能描述:ANLG SW DUAL SPDT 5.5V 10TQFN - Rail/Tube |
| MAX4684ETB+G104 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4684ETB+T | 功能描述:模拟开关 IC .5/.8Ohm Dual SPDT Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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