{"id":8596,"date":"2026-06-29T06:56:19","date_gmt":"2026-06-29T06:56:19","guid":{"rendered":"https:\/\/materialparts.com\/ad7779acpz-rl\/"},"modified":"2026-06-29T06:56:19","modified_gmt":"2026-06-29T06:56:19","slug":"ad7779acpz-rl","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ad7779acpz-rl\/","title":{"rendered":"AD7779ACPZ-RL"},"content":{"rendered":"

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

The Analog Devices AD7779ACPZ-RL is an 8-channel, 24-bit simultaneous sampling sigma-delta ADC with programmable gain amplifiers and a sampling rate converter. Packaged in a 64-lead LFCSP (9 x 9 mm), it delivers 108 dB SNR at 16 kSPS per channel and is designed for precision measurement applications including power metering, industrial process control, and data acquisition systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Resolution<\/td>\n24-bit<\/td>\n<\/tr>\n
\u6e20\u9053<\/td>\n8 simultaneous sampling<\/td>\n<\/tr>\n
Output Data Rate<\/td>\nUp to 16 kSPS per channel<\/td>\n<\/tr>\n
SNR \/ Dynamic Range<\/td>\n108 dB (high-resolution mode)<\/td>\n<\/tr>\n
PGA Gain<\/td>\n1, 2, 4, 8<\/td>\n<\/tr>\n
Interface<\/td>\nSPI + dedicated data output<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3 V or \u00b11.65 V analog; 1.8 V to 3.6 V digital<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n64-Lead LFCSP (9 x 9 mm w\/ EP)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 8-channel simultaneous sampling with 24-bit resolution<\/li>\n
  • Per-channel programmable gain amplifier (1\/2\/4\/8)<\/li>\n
  • Sampling rate converter (SRC) for coherent sampling<\/li>\n
  • Low latency sinc3 filter path<\/li>\n
  • On-chip 2.5 V reference with 10 ppm\/\u00b0C tempco<\/li>\n
  • Diagnostic SAR ADC for system monitoring<\/li>\n
  • High-resolution and low-power operating modes<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Circuit breaker \/ power metering<\/li>\n
    • Industrial process control<\/li>\n
    • EEG and medical instrumentation<\/li>\n
    • General-purpose data acquisition<\/li>\n
    • Functional safety systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Analog Devices AD7779ACPZ-RL is an 8-channel, 24-bit simultaneous sampling sigma-delta ADC with programmable gain amplifiers and a sampling rate converter. Packaged in a 64-lead LFCSP (9 x 9 mm), it delivers 108 dB SNR at 16 kSPS per channel and is designed for precision measurement applications including power metering, industrial process control, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[165],"class_list":["post-8596","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"8-ch 24-bit simultaneous sampling sigma-delta ADC, 16kSPS, 108dB SNR, PGA, SRC, 64-LFCSP","date_code":"","package_case":"64-Lead LFCSP (9 x 9 mm w\/ EP)","in_stock":5721,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ad7779.pdf","price":"$9.08 @ 1ku","product_introduction":"The AD7779 is an 8-channel, 24-bit simultaneous sampling ADC from Analog Devices, integrating eight complete sigma-delta ADCs on a single chip. Each channel features a programmable gain amplifier with gains of 1, 2, 4, and 8, allowing direct sensor connection with ultra-low input current. The device includes a sampling rate converter (SRC) for precise ODR control with 15.2 uSPS resolution, enabling coherent sampling in power metering applications. Two operating modes\u2014high-resolution (10.75 mW\/ch, 108 dB SNR) and low-power (3.37 mW\/ch)\u2014provide flexibility for performance-critical or energy-sensitive designs. A built-in 12-bit SAR ADC enables system diagnostics without sacrificing a sigma-delta channel.","working_principle":"The AD7779 comprises eight independent sigma-delta ADC channels, each containing a modulator and a sinc3 digital filter. The input signal is first amplified by the per-channel PGA, then digitized by the oversampling modulator. The sinc3 filter decimates the modulator output to produce 24-bit conversion results at the programmed output data rate (ODR). The SRC allows fine-grained ODR adjustment for coherent sampling with AC line frequencies. A dual-interface architecture separates the SPI control path from the dedicated data output path, ensuring real-time data throughput is not interrupted by configuration accesses. The diagnostic SAR ADC can monitor internal nodes or external signals via GPIO-controlled multiplexers.","pin_description":"\n
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1-2<\/td>AIN0+\/AIN0-<\/td>Analog Input<\/td>Channel 0 differential input<\/td><\/tr>\n
      3-4<\/td>AIN1+\/AIN1-<\/td>Analog Input<\/td>Channel 1 differential input<\/td><\/tr>\n
      5-6<\/td>AIN2+\/AIN2-<\/td>Analog Input<\/td>Channel 2 differential input<\/td><\/tr>\n
      7-8<\/td>AIN3+\/AIN3-<\/td>Analog Input<\/td>Channel 3 differential input<\/td><\/tr>\n
      9-10<\/td>AIN4+\/AIN4-<\/td>Analog Input<\/td>Channel 4 differential input<\/td><\/tr>\n
      11-12<\/td>AIN5+\/AIN5-<\/td>Analog Input<\/td>Channel 5 differential input<\/td><\/tr>\n
      13-14<\/td>AIN6+\/AIN6-<\/td>Analog Input<\/td>Channel 6 differential input<\/td><\/tr>\n
      15-16<\/td>AIN7+\/AIN7-<\/td>Analog Input<\/td>Channel 7 differential input<\/td><\/tr>\n
      17<\/tdSCLK<\/td>Digital Input<\/td>SPI serial clock<\/td><\/tr>\n
      18<\/td>CS<\/td>Digital Input<\/td>SPI chip select (active low)<\/td><\/tr>\n
      19<\/td>DOUT<\/td>Digital Output<\/td>SPI data output<\/td><\/tr>\n
      20<\/td>DIN<\/td>Digital Input<\/td>SPI data input<\/td><\/tr>\n
      21-23<\/td>GPIO0-2<\/td>Digital I\/O<\/td>General-purpose I\/O for SAR MUX control<\/td><\/tr>\n
      24<\/td>DRDY<\/td>Digital Output<\/td>Data ready (active low)<\/td><\/tr>\n
      25<\/td>CLKIO<\/td>Digital I\/O<\/td>Data output clock \/ data interface<\/td><\/tr>\n
      EP<\/td>EPAD<\/td>Ground<\/td>Exposed pad for thermal and electrical ground<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Three-phase power metering with coherent sampling<\/li>\n
      • Industrial process control and monitoring<\/li>\n
      • EEG\/EMG medical instrumentation<\/li>\n
      • Vibration analysis and condition monitoring<\/li>\n
      • Functional safety data acquisition systems<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Channels<\/th>Resolution<\/th>Notes<\/th><\/tr>\n
        TI<\/td>ADS131M08<\/td>8<\/td>24-bit<\/td>Similar 8-ch ADC, lower cost<\/td><\/tr>\n
        ADI<\/td>AD7770<\/td>8<\/td>24-bit<\/td>Lower resolution variant<\/td><\/tr>\n
        ADI<\/td>AD7771<\/td>8<\/td>24-bit<\/td>Mid-resolution variant<\/td><\/tr>\n
        TI<\/td>ADS1258<\/td>16<\/td>24-bit<\/td>More channels, multiplexed<\/td><\/tr>\n
        Microchip<\/td>MCP3914<\/td>8<\/td>24-bit<\/td>Lower cost alternative<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8596","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=8596"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8596\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8596"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}