{"id":2507,"date":"2026-05-22T03:28:48","date_gmt":"2026-05-22T03:28:48","guid":{"rendered":"https:\/\/materialparts.com\/ca3140ez\/"},"modified":"2026-05-22T03:28:48","modified_gmt":"2026-05-22T03:28:48","slug":"ca3140ez","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ca3140ez\/","title":{"rendered":"CA3140EZ"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The CA3140EZ is a 4.5MHz BiMOS operational amplifier manufactured by Renesas Electronics (formerly Intersil). It combines high-voltage PMOS transistors with high-voltage bipolar transistors on a single monolithic chip, providing extremely high input impedance, very low input current, and high-speed performance. The device is pin-compatible with the industry-standard 741 op-amp and operates over a wide supply range of 4V to 36V single supply.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Supply Voltage Range<\/td>\n4V to 36V single, +\/-2V to +\/-18V dual<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n4.5MHz<\/td>\n<\/tr>\n
\u538b\u6446\u7387<\/td>\n9V\/us<\/td>\n<\/tr>\n
\u8f93\u5165\u5931\u8c03\u7535\u538b<\/td>\n5mV max<\/td>\n<\/tr>\n
\u8f93\u5165\u504f\u7f6e\u7535\u6d41<\/td>\n10pA typical<\/td>\n<\/tr>\n
Input Impedance<\/td>\n1.5Tohm typical<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n40mA<\/td>\n<\/tr>\n
CMRR<\/td>\n90dB typical<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55C to +125C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nPDIP-8<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • MOSFET input stage with 1.5Tohm input impedance<\/li>\n
  • Extremely low input bias current (10pA typical)<\/li>\n
  • Wide common-mode input voltage range<\/li>\n
  • Single or dual supply operation<\/li>\n
  • Directly replaces 741 in most applications<\/li>\n
  • Strobe capability for output gating<\/li>\n
  • Broad operating temperature range (-55C to +125C)<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Ground-referenced single-supply amplifiers<\/li>\n
    • Sample-and-hold amplifiers<\/li>\n
    • Photocurrent instrumentation<\/li>\n
    • Active filters and comparators<\/li>\n
    • Medical monitoring equipment<\/li>\n
    • Peak detectors and function generators<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CA3140EZ is a 4.5MHz BiMOS operational amplifier manufactured by Renesas Electronics (formerly Intersil). It combines high-voltage PMOS transistors with high-voltage bipolar transistors on a single monolithic chip, providing extremely high input impedance, very low input current, and high-speed performance. The device is pin-compatible with the industry-standard 741 op-amp and operates over a […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[12],"class_list":["post-2507","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-renesas"],"acf":{"brief_explanation":"4.5MHz BiMOS Op-Amp, MOSFET input, 4-36V supply, 10pA Ib, PDIP-8","date_code":"","package_case":"PDIP-8 (9.7 x 6.6 x 3.94 mm)","in_stock":11635,"datasheet":"https:\/\/www.renesas.com\/en\/products\/ca3140\/part-details\/ca3140ez","price":"$1.87 @ 1ku","product_introduction":"The CA3140EZ is a BiMOS operational amplifier from Renesas Electronics that integrates PMOS and bipolar transistors on a single chip. The MOSFET input stage provides extremely high input impedance (1.5Tohm typical) and ultra-low input bias current (10pA), making it ideal for high-impedance signal sources. With a 4.5MHz gain-bandwidth product and 9V\/us slew rate, it offers excellent speed performance. The device is pin-compatible with the classic 741 op-amp and can directly replace it in most applications.","working_principle":"The CA3140EZ employs a BiMOS architecture combining PMOS input transistors with bipolar output stage. The PMOS differential input pair provides extremely high input impedance and near-zero input bias current. The bipolar output stage delivers 40mA output current with rail-to-rail input capability on the negative side. An internal 12pF compensation capacitor provides unity-gain stability. The strobe pin allows output gating by pulling the output to the negative rail. The device features offset null adjustment through pins 1 and 5.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>OA1<\/td>Offset<\/td>Offset adjust 1<\/td><\/tr>
      2<\/td>IN-<\/td>Input<\/td>Inverting input<\/td><\/tr>
      3<\/td>IN+<\/td>Input<\/td>Non-inverting input<\/td><\/tr>
      4<\/td>V-<\/td>Power<\/td>Negative supply \/ ground<\/td><\/tr>
      5<\/td>OA2<\/td>Offset<\/td>Offset adjust 2<\/td><\/tr>
      6<\/td>OUT<\/td>Output<\/td>Amplifier output<\/td><\/tr>
      7<\/td>V+<\/td>Power<\/td>Positive supply (4-36V)<\/td><\/tr>
      8<\/td>STROBE<\/td>Control<\/td>Strobe (output gating)<\/td><\/tr><\/table>","application_scenarios":"
      • Single-supply automotive and portable instrumentation<\/li>
      • Sample-and-hold and peak detector circuits<\/li>
      • Photodiode and piezoelectric sensor amplifiers<\/li>
      • Long-duration timers and multivibrators<\/li>
      • 5V TTL system interface circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Renesas<\/td>CA3140E<\/td>PDIP-8<\/td>Commercial temp range version<\/td><\/tr>
        Renesas<\/td>CA3140AMZ96<\/td>SOIC-8<\/td>SMD version<\/td><\/tr>
        Texas Instruments<\/td>TL082CP<\/td>PDIP-8<\/td>JFET input dual op-amp<\/td><\/tr>
        onsemi<\/td>MC34071P<\/td>PDIP-8<\/td>Single supply op-amp alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2507","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=2507"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2507\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2507"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}