AD7722ASZ

AD7722 is a complete low power, 16bit, Σ-∆ ADC. The part operates from a 5V supply and accepts a differential input voltage range of 0V to +2.5V or ±1.25V centred around a common-mode bias. The AD7722 provides 16bit performance for input bandwidths up to 90.625KHz. The part provides data at an output word rate of 195.3KHz. The analogue input is continuously sampled by an analogue modulator, eliminating the need for external sample-and-hold circuitry. The modulator output is processed by two finite impulse response (FIR) digital filters in series. The on-chip filtering reduces the external antialias requirements to first order, in most cases.

• 16bit Ʃ-Δ ADC
• 64 x oversampling ratio
• Up to 220KSPS output word rate
• Low-pass, linear phase digital filter
• Inherently monotonic
• On-chip 2.5V voltage reference
• Single-supply 5V
• High speed parallel or serial interface
• 44 lead MQFP package
• Operating temperature range from -40 to 85°C

Uwagi

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