Datasheet Analog Devices AD7740KRMZ — Datenblatt

a 3 V/5 V Low Power, Synchronous
Voltage-to-Frequency Converter
AD7740* 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 V REF
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 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 …