高可靠性隔離電流采樣ADC FT-AV-SI1306

FT-AV-SI1306是一款高性能Σ-Δ調(diào)制器,基于電容隔離技術(shù),其輸出與輸入分離。該器件的線性差分輸入信號(hào)范圍為±50mV(滿量程±64mV)或±250mV范圍(滿量程±320mV)。差分輸入非常適合需要隔離的高壓應(yīng)用中基于分流電阻的電流檢測(cè)。

模擬輸入經(jīng)過(guò)放大,并由二階Σ-Δ調(diào)制器連續(xù)采樣,然后轉(zhuǎn)換為高速,單比特?cái)?shù)據(jù)流。輸出數(shù)據(jù)與外部時(shí)鐘同步,時(shí)鐘上升沿有效,頻率范圍為5MHz至21MHz。通過(guò)使用適當(dāng)?shù)臄?shù)字濾波器(例如sinc3濾波器)來(lái)抽取比特流,該器件可以在78.125KPS的條件下以20MHz的主時(shí)鐘實(shí)現(xiàn)16位分辨率和86dB/82.5dB信噪比(SNR)。故障安全功能包括輸入共模過(guò)壓檢測(cè)和VDD1缺失檢測(cè),簡(jiǎn)化了系統(tǒng)設(shè)計(jì)和診斷。

產(chǎn)品特性

● 高達(dá)5000Vrms的絕緣電壓

● 時(shí)鐘頻率:5MHz至21MHz

● ±50mV或±250mV線性輸入電壓范圍

● 出色的直流性能:

● 失調(diào)誤差:±50μV或±100μV(最大值)

● 失調(diào)漂移:±0.5μV/℃或-0.5~1.5μV/℃(最大值)

● 增益誤差:±0.2%(最大值)

● 增益漂移:±40ppm/℃(最大)

● 信噪比:82.5dB或86dB(Typ)

● 高CMTI:150kV/us(典型值)

● 系統(tǒng)級(jí)診斷功能:

● AVDD監(jiān)控

● 輸入共模過(guò)壓檢測(cè)

● 工作溫度:-40℃?125℃

● 封裝:SOP8(300mil)/SOP16(300mil)

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安全認(rèn)證

● UL1577認(rèn)證: 1分鐘 5kVrms

● CQC認(rèn)證:符合GB4943.1-2011

● CSA認(rèn)證:組件符合5A

● VDE認(rèn)證:DIN V VDE V 0884-11:2017-01

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應(yīng)用場(chǎng)景

● 分流電流監(jiān)控

● 交流電機(jī)控制

● 電力和太陽(yáng)能逆變器

● 不間斷電源供應(yīng)

● 車載充電器

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Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.

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