12-bit SAR ADC at 73 ksps — what it means for the analog front end
The MAX1240BESA+ is a 12-bit SAR ADC with a single-ended input, sampling at 73 ksps. The SAR architecture gives deterministic conversion time — no pipeline delay.
Supply and interface — single 3.3 V rail, SPI hookup
Both analog and digital supplies run from a single 2.7 V to 3.6 V rail. The SPI data interface connects directly to most MCU SPI peripherals.
Industrial temperature range and SOIC-8 footprint
Rated for -40°C to 85°C, this ADC fits outdoor telecom, factory-floor sensor interfaces, and engine-bay electronics where the ambient temperature swings wide. The 8-pin SOIC package (0.154" body width) is a common footprint — the same pad layout used by dozens of op-amps and interface ICs, so it slots into an existing board without a respin.
Lifecycle and sourcing — active, no EOL watch
The MAX1240BESA+ carries an active lifecycle status.