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Analog Devices MAX4509CSE+ — DC-DC Power Modules

MAX4509CSE+ Analog Devices SP4T Analog Switch, 2 Circuits

MPNMAX4509CSE+
End of Life

Analog Devices MAX4509CSE+, dual SP4T analog switch, 400 ohm on-resistance, 275ns/200ns switch times, 9V~36V single or ±4.5V~20V dual supply, 0°C to 70°C, 16-SOIC package.

$11.35Ref. price · indicative, final on quote
Packaging16-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX4509CSE+ Technical Specifications
ParameterValue
Mounting typeSurface Mount
Voltage - supply, dual (V±)±4.5V ~ 20V
Voltage - supply, single (V+)9V ~ 36V
Current - leakage (IS(off))500pA
Operating temperature0°C ~ 70°C (TA)
PackageTube
Crosstalk-62dB @ 1MHz
Case16-SOIC (0.154\", 3.90mm Width)
Switch circuitSP4T
Charge injection2pC
Number of circuits2
On-State resistance400Ohm
Switch time (Ton, toff)275ns, 200ns
Multiplexer (Demultiplexer circuit)4:1
Channel capacitance (CS(off), CD(off))10pF, 14pF
Channel-to-Channel matching (ΔRon)15Ohm (Max)

Product details

Key ratings and what they mean for your board

The 400 ohm on-resistance is moderate — fine for driving high-impedance loads like op-amp inputs or ADC front-ends, but not for power switching or low-impedance audio outputs where you'd want single-digit ohms. The 275 ns turn-on and 200 ns turn-off times are fast enough for scanning sensor arrays or multiplexing signals at moderate rates, though not for high-speed video or RF switching. Crosstalk is rated at -62 dB at 1 MHz, which gives decent channel isolation for audio-band or low-frequency analog multiplexing; at higher frequencies it degrades, so keep that in mind for mixed-signal designs with fast edges nearby. Leakage current is a maximum of 500 pA off-state, and charge injection is 2 pC — both low enough that they won't disturb precision analog measurements in most data-acquisition or sample-and-hold circuits. The 10 pF / 14 pF channel capacitance (source off / drain off) is modest; it adds a small RC time constant with the source impedance, but for signals below a few hundred kHz it's rarely a concern.

Package and handling

It comes in a 16-pin SOIC-8 body (0.154" wide, 3.90 mm width), surface-mount only. The '+' suffix on the order code indicates lead-free / ROHS3 compliant finish — no lead in the solder plating. It ships in a tube, not tape-and-reel, so if your pick-and-place line expects reels you'll need to transfer to tape or order the reel-pack variant. MSL is not listed in this data, but SOIC packages are typically MSL 1 or 2; still, bake before reflow if the moisture barrier bag has been open longer than the floor life.

Lifecycle and sourcing

It is ROHS3 compliant, so no restriction on use in new designs for RoHS-regulated markets. No official second source or pin-compatible alternate is listed in the record, so for dual-sourcing resilience you'd need to qualify a functionally similar part from another vendor on your own bench.

Frequently asked questions

What does the '+' in MAX4509CSE+ mean?

The '+' suffix on Analog Devices part numbers typically indicates lead-free / ROHS-compliant plating. In this case the part is ROHS3 compliant, meaning no lead, no restricted substances above the threshold.