Three-axis analog output with selectable range
The ADXL354BEZ-RL is a 3-axis (X, Y, Z) MEMS accelerometer with analog voltage output, covering ±2g and ±4g full-scale ranges selectable via a logic pin. At the ±2g setting the sensitivity is 400 mV/g; switching to ±4g halves it to 200 mV/g, so the output span stays within the same 0.1 V to 2.9 V window for either range. Bandwidth is 1.5 kHz, which covers mechanical vibration monitoring up to the first few harmonics of a 50 Hz line or a 60 Hz motor shaft without aliasing into the measurement band. The analog output feeds directly into a SAR ADC or an op-amp front-end — no digital protocol latency. The standby mode drops quiescent current to microamp levels for battery-powered logging between measurement bursts.
14-CLCC package — rework and board integration
Housed in a 14-lead ceramic leadless chip carrier (14-CLCC) measuring 6 mm × 6 mm, the package has a gold-plated ceramic base and a metal lid. The leads are on a 1.27 mm pitch around the perimeter — visible and probe-accessible after reflow, unlike a QFN with hidden pads under the body. For hand rework: preheat the board to 125°C, then hit the package with a hot-air nozzle at 300°C for 20-30 seconds. The ceramic body soaks heat evenly, so the solder on all 14 joints reflows at about the same moment. The tape-and-reel format suits automated pick-and-place; the ceramic lid is hermetic, so no moisture sensitivity level (MSL) bake is required before reflow — the part can sit on the shelf indefinitely.
The ceramic package keeps the die stress-isolated from the board, so the zero-g offset drift over temperature stays within the datasheet limits — no plastic-package hysteresis at the hot end. Product status is Active with ROHS3 compliance.