The AD7678 is an 18-bit, 100 kSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates on a single 5 V power supply. The part contains a high speed 18-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports. The part is available in 48-lead LQFP or 48-lead LFCSP packages with operation specified from –40°C to +85°C. * 18-bit resolution with no missing codes * No pipeline delay (SAR architecture) * Differential input range: ±VREF (VREF up to 5 V) * Throughput: 100 kSPS * INL: ±2.5 LSB max (±9.5 ppm of full scale) * Dynamic range: 103 dB typ (VREF = 5 V) * S/(N+D): 100 dB typ @ 2 kHz (VREF = 5 V) * Parallel (18-,16-, or 8-bit bus) and serial 5 V/3 V interface * SPI®/QSPI™/MICROWIRE™/DSP compatible * On-board reference buffer * Single 5 V supply operation * Power dissipation: 18 mW @ 100 kSPS, 180 μW @ 1 kSPS * 48-lead LQFP or 48-lead LFCSP package * Pin-to-pin compatible upgrade of AD7674/AD7676/AD7679 https://elecena.pl/product/691389/18-bit-100-ksps-pulsar-a-d-converter 2008-07-05 https://elecena.pl/product/691389/18-bit-100-ksps-pulsar-a-d-converter 2015-03-28 https://elecena.pl/product/691389/18-bit-100-ksps-pulsar-a-d-converter 2025-01-19