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Analog Devices MAX1239KEEE+ — DC-DC Power Modules

MAX1239KEEE+ Analog Devices SAR ADC, 12-Bit, 94.4kSPS

MPNMAX1239KEEE+
End of Life

Analog Devices MAX1239KEEE+ SAR ADC, 12-bit, 94.4kSPS, I²C, 6/12 differential/single-ended inputs, 16-SSOP/QSOP, tube.

$17.92Ref. price · indicative, final on quote
Packaging16-SSOP (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX1239KEEE+ specifications
ParameterValue
Input typeDifferential, Single Ended
MountingSurface Mount
Reference typeExternal, Internal
Voltage - supply, analog2.7V ~ 3.6V
Voltage - supply, digital2.7V ~ 3.6V
I/O channels6, 12
InterfaceI²C
Operating temperature-40°C ~ 85°C
PackageTube
ArchitectureSAR
ConfigurationS/H-ADC
Number of bits12
Case16-SSOP (0.154\", 3.90mm Width)
Ratio - s (H:ADC)1:1
Number of a (D converters)1
Sampling rate (Per second)94.4k

Product details

12-bit SAR ADC with I²C and flexible input mux

The MAX1239KEEE+ is a 12-bit successive-approximation-register (SAR) ADC from Analog Devices, sampling at 94.4 kSPS over an I²C-compatible serial interface. The input multiplexer can be configured for six differential or twelve single-ended channels, with the S/H-ADC ratio fixed at 1:1.

Package and board-fit for the 16-pin SSOP/QSOP footprint

Surface-mount assembly with tube shipment; the narrow-body SSOP/QSOP footprint suits dense mixed-signal boards where board real estate is at a premium.

Reference options and conversion architecture

The reference can be driven from an external source or the internal bandgap, giving the designer control over the full-scale range independent of the supply voltage. A single ADC core handles all channels with a 1:1 sample-and-hold to converter ratio, meaning each conversion samples the input at that instant — no pipeline delay between channels.

Sourced to order through independent distribution; availability and current pricing confirmed at RFQ.

Frequently asked questions

What is the MAX1239KEEE+'s input type and how many channels does it support?

The ADC accepts both differential and single-ended inputs via a multiplexer that can be configured for six differential or twelve single-ended channels.

Does the MAX1239KEEE+ require an external reference?

No — the reference can be either external or internal, giving flexibility to set the full-scale range independent of the supply voltage.

What package does the MAX1239KEEE+ come in?

It is supplied in a 16-SSOP (0.154-inch, 3.90 mm width) package, also listed as a 16-QSOP supplier device package — both share the same footprint.