DescriptionThe AZ393/393C series consists of two independentprecision voltage comparators with an offset voltagespecification as low as 1mV. The input common modevoltage range of these comparators includes ground,even when operated from a single power supply volt-age. Operation from split power supplies is also possi-ble and the low power supply current drain isindependent of the magnitude of the power supplyvoltage. The AZ393/393C series is designed to directly inter-face with TTL and CMOS. AZ393C has morestringent input offset voltage than AZ393. The AZ393/393C series can be widely used in applica-tions such as battery charger, cordless telephone,switching power supply, DC-DC module and PCmotherboard.The AZ393/393C series are available in standard pack-ages of DIP-8 and SOIC-8.FeaturesWide Supply Voltage Range - Single Supply: 2.0V to 18V - Dual Supplies: .0V to 9V Very Low Supply Current Drain: 0.4mA - Independent of Supply VoltageLow Input Bias Current: 25nA (Typical) Low Input Off FeaturesWide Supply Voltage Range - Single Supply: 2.0V to 18V - Dual Supplies: .0V to 9V Very Low Supply Current Drain: 0.4mA - Independent of Supply VoltageLow Input Bias Current: 25nA (Typical) Low Input Offset Current: 5nA (Typical)Low Input Offset Voltage: 1mV (Typical)Input Common Mode Voltage Range IncludesGroundDifferential Input Voltage Range Equals to thePower Supply VoltageLow Output Saturation Voltage: 250mV at 4mAOpen Collector OutputApplicationsBattery Charger Cordless TelephoneSwitching Power SupplyDC-DC ModulePC MotherboardCommunication EquipmentFigure 1. Package Types of AZ393/393C SOIC-8DIP-8LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS AZ393/393C2Oct. 2008 Rev. 1. 5BCD Semiconductor Manufacturing LimitedData Sheet Figure 2. Pin Configuration of AZ393/393C (Top View) Figure 3. Functional Block Diagram of AZ393/393C(SOIC-8)(Each Comparator)M PackageFunctional Block Diagram+INPUT-INPUTQ5Q6Q1Q2Q3Q4Q7Q8OUTPUTVCCAAA100APin Configuration INPUT 2-OUTPUT1 INPUT1-INPUT1+GNDOUT specification as low as 1mV. The input common