CA3140中文资料4.5MHz, OPERATION AMPLIFIER WITH MOSFET INPUT/BIPOLAR OUTPUT数据手册UTC规格书

描述 Description

The UTC CA3140 is integrated circuit operational amplifierthat combine the advantages of high voltage PMOS transistorswith high voltage bipolar transistors on a single monolithic chip.The UTC CA3140 operational amplifier feature gate protectedMOSFET (PMOS) transistors in the input circuit to provide veryhigh input impedance, very low input current, and high speedperformance. The UTC CA3140 operates at supply voltage from4V to 36V (either single or dual supply). This is internally phasecompensated to achieve stable operation in unity gain followeroperation, and additionally, has access terminal for asupplementary external capacitor if additional frequency roll-off isdesired. Terminals are also provided for use in applicationsrequiring input offset voltage nulling. The use of PMOS field effecttransistors in the input stage results in common mode inputvoltage capability down to 0.5V below the negative supplyterminal, an important attribute for single supply applications. Theoutput stage uses bipolar transistors and includes built-inprotection against damage from load terminal short circuiting toeither supply rail or to ground.The UTC CA3140 is intended for operation at supply voltagesup to 36V (±18V).

特性 Features

MOSFET Input Stage- Very High Input Impedance (ZIN) -1.5TΩ (Typ)- Very Low Input Current (Il) -10pA (Typ) at ±15V- Wide Common Mode Input Voltage Range (VlCR)     - Can be SWUNG 0.5V Below Negative Supply Voltage Rail