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Analog Devices MAX4645EUT+T — Analog & Data Acquisition

MAX4645EUT+T Analog Switch SPST-NO, 2.5 Ohm, SOT-23-6

MPNMAX4645EUT+T
End of Life

Maxim Integrated MAX4645EUT+T, SPST-NO analog switch, 1 circuit, 2.5 Ohm max on-resistance, 15ns/10ns switching, 1.8V-5V supply, SOT-23-6 package, -40°C to 85°C.

$3.43Ref. price · indicative, final on quote
PackagingSOT-23-6
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX4645EUT+T specifications
ParameterValue
MountingSurface Mount
Voltage - supply, single (V+)1.8V ~ 5V
Current - leakage (IS(off))250pA
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
CaseSOT-23-6
Switch circuitSPST - NO
Charge injection5pC
Number of circuits1
On-State resistance2.5Ohm
Switch time (Ton, toff)15ns, 10ns
Multiplexer (Demultiplexer circuit)1:1
Channel capacitance (CS(off), CD(off))17pF, 17pF
Channel-to-Channel matching (ΔRon)100mOhm

Product details

Low on-resistance, fast switching for precision analog paths

It is designed for routing analog or digital signals with minimal distortion, featuring a maximum on-resistance of 2.5 Ohm and switching times of 15 ns (tON) and 10 ns (tOFF).

Charge injection is rated at 5 pC, which is the amount of charge transferred to the load when the switch turns off. In a sample-and-hold or integrator circuit, this glitch energy can cause a voltage step on the hold capacitor — 5 pC is low enough that with a 10 nF hold cap the step is under 0.5 mV, keeping errors in the microvolt range. Off-leakage current is a maximum of 250 pA at 25°C, so the switch does not appreciably discharge a high-impedance node during the off state.

Supply voltage and temperature — design margin considerations

The supply range from 1.8 V to 5 V covers the common 1.8 V, 2.5 V, 3.3 V, and 5 V logic rails. The SOT-23-6 footprint is compact enough for dense PCB layouts in portable instrumentation or sensor interface modules.

Frequently asked questions

Is MAX4645EUT+T RoHS compliant?

Yes, the MAX4645EUT+T is ROHS3 compliant per the manufacturer's status.

Can MAX4645EUT+T handle negative voltages?

The device is specified for single-supply operation from 1.8 V to 5 V only. It does not have a split-supply rating and is not intended for negative voltage switching.