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Analog Devices MAX1281BEUP+ — DC-DC Power Modules
Analog Devices

MAX1281BEUP+ ADC, 12-Bit SAR, 300k SPS, 20-TSSOP

MPNMAX1281BEUP+
End of Life

Maxim Integrated MAX1281BEUP+, 12-bit SAR ADC, 300k samples per second, SPI interface, 4 or 8 pseudo-differential/single-ended inputs, 2.7V-3.6V supply, -40°C to 85°C, 20-TSSOP package, Tube.

$22.24Ref. price · indicative, final on quote
MAX1281BEUP+ datasheet
Packaging20-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

MAX1281BEUP+ Technical Specifications
ParameterValue
Input typePseudo-Differential, Single Ended
Mounting typeSurface Mount
Reference typeExternal, Internal
Voltage - supply, analog2.7V ~ 3.6V
Voltage - supply, digital2.7V ~ 3.6V
Number of inputs4, 8
InterfaceSPI
Operating temperature-40°C ~ 85°C
PackageTube
ArchitectureSAR
ConfigurationMUX-S/H-ADC
Number of bits12
Case20-TSSOP (0.173\", 4.40mm Width)
Ratio - s (H:ADC)1:1
Number of a (D converters)1
Sampling rate (Per second)300k

Product details

12-bit SAR ADC with flexible input mux

The MAX1281BEUP+ is a 12-bit SAR ADC with 300k samples per second over SPI. It integrates a 4- or 8-channel input multiplexer for pseudo-differential or single-ended operation.

Input configuration and reference options

The MUX-S/H-ADC architecture lets you select between 4 pseudo-differential or 8 single-ended inputs via software. The S/H-to-ADC ratio is 1:1, meaning each conversion samples a fresh input. The reference can be driven externally or taken from the internal bandgap, giving flexibility to match the input signal range to the ADC full-scale without extra components.

Lifecycle and sourcing

No last-time-buy or obsolescence risk is indicated.

Frequently asked questions

Can MAX1281BEUP+ handle single-ended inputs with an external reference?

Yes, the MAX1281BEUP+ supports single-ended inputs (up to 8 channels) and accepts an external reference, giving flexibility to scale the input range.

What is the sampling rate of MAX1281BEUP+?

The MAX1281BEUP+ samples at 300k samples per second.

Can MAX1281BEUP+ work with a 2.7V supply?

Yes, the MAX1281BEUP+ operates from a 2.7V to 3.6V supply on both analog and digital rails.