www.analog.com , NASDAQ: ADI), a global leader in high-performance signal processing semiconductor technology and a leader in the data converter market, announced the launch of a multiplexed 24-bit sigma-delta A/D converter that achieves twice the throughput rate with less power consumption than competing products.

Designed for process automation and instrumentation equipment requiring faster channel monitoring due to increased data channel density, ADI's AD7176-2 A/D converter achieves a multi-channel scan rate of 50 kSPS (thousand samples per second). The AD7176-2 enables precise signal measurement with low input bandwidth, a unique advantage of the sigma-delta architecture, thereby increasing the manufacturing process speed of automated high-precision production lines. The AD7176-2 achieves up to 17.2 noise-free bits at a speed of 250 kSPS when measured with a single channel, and up to 22 noise-free bits at 5 SPS.

The AD7176-2 A/D converter saves board space and reduces bill of materials (BOM) while maintaining high performance through high-precision on-chip peripherals such as a 2.5V ±2.5ppm/°C reference and a ±2.5% internal oscillator. In addition, this new converter product optimizes stabilization, resolution, and line frequency rejection by incorporating a flexible on-chip digital filter. In addition, the new converter product can be configured on a per-channel basis, allowing for the setting of different filters and output data rates, as well as offset and gain error correction per channel.

Key Features of the AD7176-2 24-bit Sigma-Delta A/D Converter:

• Rapid and flexible updates possible with output rates of 5SPS to 250kSPS
• More accurate measurements possible with 17.2 noise-free bits at 250 kSPS
• 50Hz and 60Hz line frequency rejection up to 90dB using enhanced 50Hz and 60Hz rejection filters
• Total current consumption of 7.8mA