Intersil CA3290A
The CA3290A and CA3290 types consist 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.| Part No. | CA3290A |
|---|---|
| Datasheet | CA3290A Download |
| Manufacturer |  Intersil |
| Description | BiMOS Dual Voltage Comparators |
| Buy | Stock & Price |
FEATURES
● MOSFET Input Stage - Very High Input Impedance (ZIN) . . . . . . . . 1.7TΩ (Typ) - Very Low Input Current at V+ = 5V . . . . . . . 3.5pA (Typ) - Wide Common Mode Input Voltage Range (VICR) Can Be Swung 1.5V (Typ) Below Negative Supply Voltage Rail - Virtually Eliminates Errors Due to Flow of Input Currents● Output Voltage Compatible with TTL, DTL, ECL, MOS, and CMOS Logic Systems in Most
APPLICATIONS
APPLICATIONS
●●
●
●
● High Source Impedance Voltage Comparators Long Time Delay Circuits Square Wave Generators A/D Converters Window Comparators Pinout CA3290/A (PDIP) TOP VIEW OUTPUT (A1) 1 INV. INPUT (A1) 2 NON-INV. INPUT (A1) 3 V- 4 A1 8 V+ +A2 7 OUTPUT (A2) Schematic Diagram (ONLY ONE IS SHOWN) BIASING CIRCUIT FOR CURRENT SOURCES COMPARATOR NO. 1 V+ D1 D2 Q1 +VI -VI Q2 Q3 1 -+ 6 INV. INPUT (A2) 5 NON-INV. INPUT (A2) Ordering Information PART NUMBER CA3290AE CA3290E TEMP RANGE (oC) -55 to 125 -55 to 125 PACKAGE 8 Ld PDIP 8 Ld PDIP PKG. NO. E8.3 E8.3 TO COMP. NO. 2 I1 Q9 50...
