MAX4684, MAX4685 0.5Ω/0.8Ω、低电压、双路SPDT模拟开关，UCSP封装

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The MAX4684/MAX4685 low on-resistance (R_ON), low-voltage, dual single-pole/double-throw (SPDT) analog switches operate from a single +1.8V to +5.5V supply. The MAX4684 features a 0.5Ω (max) R_ON for its NC switch and a 0.8Ω (max) R_ON for its NO switch at a +2.7V supply. The MAX4685 features a 0.8Ω max on-resistance for both NO and NC switches at a +2.7V supply.

Both parts feature break-before-make switching action (2ns) with t_ON = 50ns and t_OFF = 40ns at +3V. The digital logic inputs are 1.8V logic-compatible with a +2.7V to +3.3V supply.

The MAX4684/MAX4685 are packaged in the chipscale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2.0mm x 1.50mm area. The 4 x 3 array of solder bumps are spaced with a 0.5mm bump pitch.

关键特性

应用/使用

12-Bump, 0.5mm-Pitch UCSP
NC Switch R_ON

0.5Ω max (+2.7V Supply) (MAX4684)
0.8Ω max (+2.7V Supply) (MAX4685)

NO Switch R_ON

0.8Ω max (+2.7V Supply)

R_ON Match Between Channels

0.06Ω (max)

R_ON Flatness Over Signal Range

0.15Ω (max)

+1.8V to +5.5V Single-Supply Operation
Rail-to-Rail Signal Handling
1.8V Logic Compatibility
Low Crosstalk: -68dB (100kHz)
High Off-Isolation: -64dB (100kHz)
THD: 0.03%
50nA (max) Supply Current
Low Leakage Currents

1nA (max) at T_A = +25°C

	音频/视频信号切换
	电池供电设备
	蜂窝电话
	通信电路
	调制解调器
	MP3播放器
	PCMCIA卡
	电源切换
	继电器替代品
	扬声器-耳机开关

Key Specifications: Switches and Multiplexers (Low Voltage)

Part Number

Configuration

Number of Channels

V_SUPPLY, Single (min) (V)

V_SUPPLY, Single (max) (V)

R_ON (max) (Ω)

I_{L (OFF)} (max) (nA)

t_ON (max) (nS)

t_OFF (max) (nS)

Q_INJECTION (pC)

C_ON (pF)

C_OFF (pF)

Features

V_ISO, Off-Isolation (dB)

V_CT, Crosstalk (dB)

ΔR_ON (max) (Ω)

R_FLAT(ON) (max) (Ω)

Redundancy Switch

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX4684

SPDT

1.8

5.5

0.5

200

190

•	1.8V Logic Compatible

0.06

0.35

Yes

THIN QFN (Dual)/10
UCSP/10
uMAX/10

$1.15 @ 1k

MAX4685

0.8

UCSP/10
uMAX/10

$1.15 @ 1k

See All Switches and Multiplexers (Low Voltage) (127)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.