Skip to main content
Log in
Analog Devices MAX11209EEE+ — Analog & Data Acquisition

MAX11209EEE+ 18-Bit Sigma-Delta ADC, SPI, 480 SPS, 16-QSOP

MPNMAX11209EEE+
End of Life

Analog Devices MAX11209EEE+, 18-bit sigma-delta ADC, SPI, differential input, PGA, 480 SPS, 2.7V-3.6V analog / 1.7V-3.6V digital, -40°C to 85°C, 16-QSOP, Tube, ROHS3, Active.

$6.56Ref. 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

MAX11209EEE+ specifications
ParameterValue
Input typeDifferential
MountingSurface Mount
Reference typeExternal
Voltage - supply, analog2.7V ~ 3.6V
Voltage - supply, digital1.7V ~ 3.6V
I/O channels1
InterfaceSPI
Operating temperature-40°C ~ 85°C
PackageTube
FeaturesPGA
ArchitectureSigma-Delta
ConfigurationADC
Number of bits18
Case16-SSOP (0.154\", 3.90mm Width)
Number of a (D converters)1
Sampling rate (Per second)480

Product details

18-bit sigma-delta ADC with built-in PGA

The Analog Devices MAX11209EEE+ is an 18-bit sigma-delta ADC in a 16-QSOP surface-mount package. It samples at 480 SPS and includes a programmable gain amplifier (PGA) on-chip, which lets you amplify small differential signals before conversion without an external op-amp stage. The SPI data interface keeps the digital side simple — three or four wires to the host MCU. Typical applications include weigh scales, pressure sensors, temperature measurement, and portable instrumentation where 18-bit resolution and low-speed precision are the priority.

480 SPS and the noise trade-off

The sigma-delta architecture oversamples the input and trades conversion rate for noise rejection.

Separate analog and digital supply rails

The analog supply runs from 2.7 V to 3.6 V; the digital supply accepts 1.7 V to 3.6 V.

It ships in Tube — the standard for low-volume prototyping and small production runs.

Frequently asked questions

Is MAX11209EEE+ a SPI ADC?

Yes, the MAX11209EEE+ uses an SPI data interface. Connect it to your MCU's SPI bus with a chip-select line for each conversion result.

Can MAX11209EEE+ be used in portable battery-powered devices?

Yes, the low 480 SPS sampling rate and the ability to power the digital section from 1.7 V to 3.6 V make it suitable for battery-operated designs. The PGA on-chip also reduces external component count, saving board space and power.

Can MAX11209EEE+ be used in industrial temperature range?

Yes, the operating temperature range is -40°C to 85°C, which covers the industrial temperature grade. It is suitable for factory automation, outdoor sensors, and other industrial equipment.

What is the closest pin-compatible alternative to MAX11209EEE+?

The MAX11209EEE+ is part of a family of pin-compatible sigma-delta ADCs from Analog Devices. The MAX11210 offers 20-bit resolution at the same 480 SPS in the same 16-QSOP footprint. If you need more resolution without changing the board layout, the MAX11210 is the direct upgrade path.