Features

MOSFET input level

-Re high input impedance (ZIN) -1.5TΩ (typical value)

-Re low input current (extremely low input current ( IL) -10Pa (at ± 15V)

-The wide-model input voltage range (VLCR) -The can swing at the negative power supply voltage rail 0.5V

-Outing swing The scope of the input input input

directly replacing the industry 741 in most applications

Refer to the single power amplifier

sampling and maintaining the amplifier

long duration timer/multi -vibrator (microsecond minute hour)

#8226; optical current instrument

Peak detector

] 5V TTL system and other low -power supply voltage system interfaces

All standard computing amplifier applications

function generator

#8226, tone control

Power supply

Portable instrument

Invasion alarm system

pinouts [pinouts [pinouts [pinouts [pinouts [pinouts 123]

4.5MHz, with MOSFET input/bipolar output BIMOS operational amplifier

CA3140

A and CA3140 are integrated circuit computing amplifiers. Combine the advantages of high -voltage transistors and high -voltage bipolar transistors on single -chip chips.

CA3140A

and the CA3140 BIMOS operational amplifier use the grid to protect the MOSFET (PMOS) transistor in the input circuit to provide very high input impedance, very low input current and high -speed performance. CA3140A and CA3140 work under the power supply voltage of 4V to 36V (single power or dual power supply). The internal phase compensation of these computing amplifiers to achieve a stable operation in the operation of the unit gain follower. In addition, if an additional frequency attenuation is required, there is an access terminal for assisting external capacitors. Terminal can also be used in applications that need to be zero -bond voltage adjustment. Using PMOS field effect transistor in the input level can reduce the voltage capacity of the co -mode input voltage to 0.5V below the negative power supply terminal, which is an important feature of the single power supply application. loseThe use of bipolar transistors, including built -in protection, prevent load terminals from damage to the power rail or short circuit to the ground.

The CA3140 series has the same 8 -lead pins as 741 " and other industrial standard operations amplifiers. CA3140A and CA3140 are suitable for power supply voltage up to 36V (± 18V).

Order information

Block figure

Principle diagram

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Application information

Circuit

As shown in the box diagram