Skip to main content
Analog Devices MAX4521CUE+ — Analog & Data Acquisition
Analog Devices

MAX4521CUE+ SPST-NC Analog Switch, 100 Ohm, 16-TSSOP

MPNMAX4521CUE+
End of Life

Maxim Integrated MAX4521CUE+, quad SPST-NC analog switch, 100 Ohm on-resistance, 1 Ohm channel matching, 80ns/30ns switching, -90dB crosstalk at 100kHz, 16-TSSOP package, 0°C to 70°C, ROHS3 compliant.

$3.05Ref. price · indicative, final on quote
MAX4521CUE+ datasheet
Packaging16-TSSOP (0.173", 4.40mm 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

MAX4521CUE+ Technical Specifications
ParameterValue
Mounting typeSurface Mount
Voltage - supply, dual (V±)±2V ~ 6V
Voltage - supply, single (V+)2V ~ 12V
Current - leakage (IS(off))1nA
Operating temperature0°C ~ 70°C (TA)
PackageTube
Crosstalk-90dB @ 100kHz
Case16-TSSOP (0.173\", 4.40mm Width)
Switch circuitSPST - NC
Charge injection1pC
Number of circuits4
On-State resistance100Ohm
Switch time (Ton, toff)80ns, 30ns
Multiplexer (Demultiplexer circuit)1:1
Channel capacitance (CS(off), CD(off))2pF, 2pF
Channel-to-Channel matching (ΔRon)1Ohm

Product details

Quad SPST-NC analog switch for precision signal routing

The Maxim Integrated MAX4521CUE+ is a quad single-pole single-throw normally-closed (SPST-NC) analog switch in a 16-TSSOP package. Each of the four switches presents a maximum on-resistance of 100 Ohm with channel-to-channel matching held to 1 Ohm, making it suitable for precision analog multiplexing, audio routing, and data-acquisition front-ends where consistent insertion loss across channels matters. The switch operates from a single supply of 2V to 12V or dual supplies of ±2V to ±6V, and its switching times — 80 ns turn-on, 30 ns turn-off — support moderate-speed signal gating. Crosstalk is rated at -90 dB at 100 kHz, which keeps channel bleed low in multi-channel systems. The commercial temperature range (0°C to 70°C) targets indoor equipment, test instrumentation, and bench-top gear.

Package and handling

Housed in a 16-TSSOP (4.40 mm width) surface-mount package, the MAX4521CUE+ ships in Tube form. The package is MSL 1 — no moisture bake required before reflow, which simplifies kitting and rework. Store the tubes in a dry, ESD-safe bin; the part is ROHS3 compliant, so no lead-free process conflict.

Lifecycle and sourcing

Sourced through independent distribution and quoted to order against an RFQ.

Frequently asked questions

What is the on-resistance and why does it matter?

The maximum on-resistance is 100 Ohm per switch, with channel-to-channel matching of 1 Ohm. This tight matching ensures consistent signal attenuation across all four channels, critical for balanced audio or multi-channel data acquisition.

Can I use MAX4521CUE+ with 3.3V logic?

Yes. The single-supply range of 2V to 12V covers 3.3V logic levels. The switch operates with a 3.3V supply, and the logic inputs are compatible with 3.3V thresholds. Verify the logic threshold voltages in the datasheet for your specific drive level.

What is the crosstalk specification?

Crosstalk is rated at -90 dB at 100 kHz, meaning signal bleed between channels is very low. This suits multi-channel audio or low-level analog switching where isolation matters.

What is the closest pin-compatible alternative?

Maxim's MAX4521 family includes the MAX4522CUE+ (SPST-NO) and MAX4523CUE+ (SPDT) in the same 16-TSSOP footprint. Verify the switch configuration before substituting — the pinout is identical, but the logic function differs.