The AD7621 is a 16-bit, 3 MSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates from a single 2.5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports. It features a very high sampling rate mode (Wideband Warp) for undersampling applications and, for asynchronous conversion rate applications, a fast mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. Operation is specified from −40°C to +85°C. It is available in a 48-lead LQFP or a 48-lead LFCSP with operation specified from –40°C to +85°C. PRODUCT HIGHLIGHTS * Fast Throughput. The AD7621 is a 3 MSPS, charge redistribution, 16-bit SAR ADC. * Superior Linearity. The AD7621 has no missing 16-bit code. * Internal Reference. The AD7621 has a 2.048 V internal reference with a typical drift of ±7 ppm/°C. * Single-Supply Operation. The AD7621 operates from a 2.5 V single supply and typically dissipates 65 mW. In impulse mode, its power dissipation decreases with the throughput. * Serial or Parallel Interface. Versatile parallel (16- or 8-bit bus) or 2-wire serial interface arrangement compatible with 2.5 V, 3.3 V, or 5 V logic. APPLICATIONS * Medical instruments * High speed data acquisition * Digital signal processing * Communications * Instrumentation * Spectrum analysis * ATE * 16 Bits Resolution with No Missing Codes * On-board Low Drift Reference with Buffer and Temperature Sensor * Differential Input Range: ±VREF (VREF up to 2.5V) * Throughput: 3 MSPS (Wideband Warp and Warp Mode) 2 MSPS (Normal Mode) 1.25 MSPS (Impulse Mode) * INL ±2 LSB Max (±30 ppm of FS) https://elecena.pl/product/691387/16-bit-2-lsb-inl-3-msps-pulsar-adc 2008-07-05 https://elecena.pl/product/691387/16-bit-2-lsb-inl-3-msps-pulsar-adc 2015-03-28 https://elecena.pl/product/691387/16-bit-2-lsb-inl-3-msps-pulsar-adc 2025-01-22