Product Overview
Harris CA3140AE 4.5MHz BiMOS Op Amp DIP-8
Condition
Used. Equipment pull. Visual inspection confirms intact 8-pin plastic DIP package with legible top markings: Harris logo, CA3140AE, and date code H9522. Function testing not performed.
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Product Overview
Harris CA3140AE is an integrated circuit operational amplifier combining high-voltage PMOS transistors with bipolar transistors on a single monolithic chip. Gate-protected MOSFETs in the input stage provide an input impedance of 1.5 TΩ with low input bias current, while the bipolar output stage delivers high current capability and wide output voltage swing. Built in an 8-lead dual in-line package with a standard 741 pinout configuration and offset null terminals.
Key Features
- MOSFET input stage with 1.5 TΩ typical input impedance
- 10 pA typical input bias current (40 pA maximum)
- 4.5 MHz unity gain bandwidth and 9 V/µs slew rate
- 5 mV maximum input offset voltage
- Operating voltage range from 4V to 36V single supply or ±2V to ±18V dual supply
- Standard 8-pin DIP pinout with offset nulling capability
Applications
- Replacing failed input-stage operational amplifiers in legacy bench test gear and industrial instrumentation.
- Building high-impedance pH probe preamplifiers and sensor interfaces on breadboards or prototyping strips.
- Constructing precision sample-and-hold circuits, peak detectors, or active filters requiring minimal input loading.
- Audio DIY projects and synthesizer circuits utilizing the CA3140 footprint for high input resistance.
Frequently Asked Questions
What is the pinout configuration for the CA3140AE?
The CA3140AE follows the industry-standard 741 single op amp pin configuration in an 8-pin DIP package, including pins 1 and 5 for offset nulling.
What power supply voltages can this amplifier accept?
It operates across a single-supply range of 4V to 36V, or dual balanced supplies from ±2V to ±18V.
Why buy this individual pulled IC instead of an untracked lot?
You receive the exact Harris CA3140AE component shown in the listing photos, individually inspected for physical integrity rather than bulk-shuffled in a mixed surplus grab bag. Flat rate shipping is $8, or ships free on orders over $28, with all orders heading out from our Idaho warehouse the same or next business day.
The classic BiMOS balance of mega-ohm MOSFET inputs and tough bipolar drive never goes out of style when maintaining honest analog circuits. Drop it into your socket and get your build back on track.
Shipping? $8 flat rate, free once your order passes $28 - and it leaves the Idaho warehouse the same or next business day.
