Part Number : MAX4626EUK-T
Marking : ADMJ
Function : 0.5Ω, Low-Voltage, Single-Supply SPST Analog Switch
Package : SOT23-5
Maker : Maxim Integrated
Pinouts : 
Description :
The MAX4626 / MAX4627 / MAX4628 are low-on-resistance, low-voltage, single-pole/single-throw (SPST) analog switches that operate from a +1.8V to +5.5V single supply. The MAX4626 is normally open (NO), and the MAX4627 is normally closed (NC).
Features
1. Low RON
(1) 0.5Ωmax (+5V Supply)
(2) 0.9Ωmax (+3V Supply)
2. 0.1Ωmax RONFlatness (+5V Supply)
3. Overcurrent Protection
4. Single-Supply Operation (+1.8V to +5.5V)
5. Available in SOT23 Packages
6. Fast Switching: tON= 50ns max, tOFF= 30ns max
7. TTL-Logic Compatible at +5V
Datasheet PDF Download : 
Others datasheet of same file :
MAX4626EUK+T, MAX4626EUK, MAX4627EUK+T,
MAX4627EUK-T, MAX4628EUT+T