(Hong Kong)
Product Summary
The CA3290AS is a BiMOS Dual Voltage Comparator with MOSFET Input, Bipolar Output. The CA3290AS consists of a dual voltage comparator on a single monolithic chip. The common mode input voltage range includes ground even when operated from a single supply. The low supply current drain makes these comparators suitable for battery operation; their extremely low input currents allow their use in applications that employ sensors with extremely high source impedances. Package options are shown in the table below. The applications of the CA3290AS are High Source Impedance Voltage Comparators, Long Time Delay Circuits, Square Wave Generators, A/D Converters and Window Comparators.
Parametrics
CA3290AS absolute maximum ratings: (1)Supply Voltage, Single Supply: +36V; Dual Supply: ±18V; (2)Differential Input Voltage: 36V or [(V+ - V-) +5V]; (3)DC Input Voltage: V+ +5V to V- -5V; (4)Output to V- Short Circuit Duration: Continuous; (5)Input Current: 1mA.
Features
CA3290AS features: (1)MOSFET Input Stage; (2)Very High Input Impedance (ZIN): 1.7TΩ (Typ); (3)Very Low Input Current at V+ = 5V: 3.5pA (Typ); (4)Wide Common Mode Input Voltage Range (VICR) Can Be Swung 1.5V (Typ) Below Negative Supply Voltage Rail; (5)Virtually Eliminates Errors Due to Flow of Input Currents; (6)Output Voltage Compatible with TTL, DTL, ECL, MOS, and CMOS Logic Systems in Most Applications.
Diagrams
