AD7740集成電路（IC）的V/FF/V轉(zhuǎn)換器規(guī)格書PDF中文資料

AD7740屬于集成電路（IC）的V/FF/V轉(zhuǎn)換器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7740V/F 和 F/V 轉(zhuǎn)換器壓頻轉(zhuǎn)換集成電路 (IC) 監(jiān)視輸入電壓并輸出比例頻率，以用于汽車傳感、電池監(jiān)測(cè)、模數(shù)轉(zhuǎn)換和信號(hào)隔離等應(yīng)用。頻壓轉(zhuǎn)換 IC 輸出與輸入頻率成比例的模擬電壓，用于速度感應(yīng)、轉(zhuǎn)速計(jì)、巡航控制和觸摸式開關(guān)等儀器和儀表。

GENERAL DESCRIPTION

The AD7740 is a low-cost, ultrasmall synchronous Voltage-toFrequency Converter (VFC). It works from a single 3.0 V to 3.6 V or 4.75 V to 5.25 V supply consuming 0.9 mA. The AD7740 is available in an 8-lead SOT-23 and also in an 8-lead MSOP package. Small package, low cost and ease of use were major design goals for this product. The part contains an on-chip 2.5 V bandgap reference but the user may overdrive this using an external reference. This external reference range includes VDD.

FEATURES

Synchronous Operation

Full-Scale Frequency Set by External System Clock

8-Lead SOT-23 and 8-Lead MSOP Packages

3 V or 5 V Operation

Low Power: 3 mW (Typ)

Nominal Input Range: 0 to VREF

True –150 mV Capability Without Charge Pump

VREF Range: 2.5 V to VDD

Internal 2.5 V Reference

1 MHz Max Input Frequency

Selectable High Impedance Buffered Input

Minimal External Components Required

APPLICATIONS

Isolation of High Common-Mode Voltages

Low-Cost Analog-to-Digital Conversion

Battery Monitoring

Automotive Sensing