AD7760BSVZ IC ADC 24BIT SIGMA-DELTA 64TQFP

Ibisobanuro

AD7760 ni imikorere ihanitse, 24-bit Σ-Δ analog-to-digitale (ADC).Ihuza umurongo mugari winjiza numuvuduko mwinshi hamwe ninyungu za Σ-Δ guhinduka kugirango ugere kumikorere ya 100 dB SNR kuri 2.5 MSPS, bigatuma biba byiza kubona amakuru yihuse.Urwego runini rugizwe hamwe no kugabanya cyane antialiasing ibisabwa byoroshya igishushanyo mbonera.Buffer ihuriweho kugirango itware ibyerekanwe, itandukanyirizo ryinyongera ryerekana ibimenyetso no guhinduranya urwego, ibendera rirenze, inyungu zinjira imbere hamwe na rejisitiri ya offset, hamwe na sisitemu yo hasi ya digitale FIR iyungurura bituma AD7760 igikoresho cyoroshye, cyinjizwamo amakuru cyane gisaba peripheri ntoya. guhitamo ibice.Mubyongeyeho, igikoresho gitanga igipimo cyo kurandura porogaramu, kandi filteri ya FIR ya digitale irashobora guhinduka niba ibiranga bisanzwe bidakwiriye kubisabwa.AD7760 nibyiza kubisabwa bisaba SNR ndende idafite igishushanyo mbonera cyo gutangiza ibimenyetso.Itandukaniro ryinjiza ryatoranijwe kuri 40 MSPS na moderi igereranya.Modulator isohoka itunganywa nuruhererekane rwo hasi rwungurura, hamwe nayunguruzo rwa nyuma rufite ubusanzwe cyangwa umukoresha-programable coefficient.Igipimo cyicyitegererezo, muyungurura inguni zingana, hamwe nibisohoka ijambo igipimo byashyizweho nuruvange rwisaha yo hanze hamwe nibitabo byabigenewe bya AD7760.Umuvuduko wa voltage watanzwe kuri AD7760 ugena intera yinjira.Hamwe na 4 V yerekanwe, igereranya ryinjiza ni ± 3.2 V itandukanyirizo ibogamye hafi yuburyo busanzwe bwa 2 V. Uku kubogama-uburyo busanzwe burashobora kugerwaho ukoresheje on-chip itandukanya amplifier, bikagabanya kandi ibimenyetso byerekana ibimenyetso byo hanze bisabwa.AD7760 iraboneka muri padi igaragara, 64-iyobora TQFP kandi igaragara hejuru yubushyuhe bwinganda kuva kuri −40 ° C kugeza kuri + 85 ° C.