16-bit SAR ADC with 40 kS/s — the industrial workhorse
The Texas Instruments ADS8507IBDW is a 16-bit successive-approximation-register (SAR) analog-to-digital converter that samples a single-ended input at 40 kS/s. It carries both SPI and parallel data interfaces, so it can drop onto an MCU's memory bus for fast reads or connect via a serial port to save pins. The internal reference and S/H circuit keep the external BOM lean — just a 5 V supply for both analog and digital rails and a handful of decoupling caps.
Temperature range and environment
Rated for -40°C to 85°C, this ADC is built for industrial environments — motor-drive cabinets, outdoor telecom shelters, factory-floor data-acquisition racks, and engine-bay instrumentation. The 5 V-only supply rail is common in existing 5 V PLC analog input modules, so a board spin using this part doesn't require a new regulator.
Package and rework
The 28-SOIC (0.295-inch body width, 7.50 mm) is a wide-body SOIC. It handles hot-air rework well — the leads are exposed, so you can wet them with flux and lift the part without cooking the board.
Lifecycle and sourcing
The ADS8507IBDW carries an Active product status and is ROHS3 compliant.