\n| \u5305\u88c5<\/td>\n | TSSOP-20 (6.5×4.4mm)<\/td>\n<\/tr>\n<\/table>\n\u7279\u70b9<\/h2>\n\n- See datasheet for complete specifications<\/li>\n
- Industry-standard package<\/li>\n<\/ul>\n
\u5e94\u7528<\/h2>\n\n- Industrial control<\/li>\n
- Consumer electronics<\/li>\n
- Communication equipment<\/li>\n
- Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"
Product Overview The AD7997BRUZ-0REEL from Analog Devices is an 8-bit 8-channel ADC with I2C interface, 400kSPS sampling, and on-chip track-and-hold in TSSOP-20 for multi-channel data acquisition. Key Specifications Package TSSOP-20 (6.5×4.4mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","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":[165],"class_list":["post-5743","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"8-bit 8-ch ADC, I2C, 400kSPS, TSSOP-20","date_code":"","package_case":"TSSOP-20 (6.5x4.4mm)","in_stock":4095,"datasheet":"https:\/\/www.analog.com\/en\/products\/ad7997.html","price":"$3.50 @ 1ku","product_introduction":"The AD7997BRUZ-0REEL from Analog Devices is an 8-bit 8-channel ADC with I2C interface, 400kSPS sampling, and on-chip track-and-hold in TSSOP-20 for multi-channel data acquisition.","working_principle":"The AD7997BRUZ-0REEL is an 8-channel, 8-bit successive approximation register (SAR) ADC with I2C interface. The conversion process begins when the CONVST pin is asserted low. An internal multiplexer sequentially selects one of the 8 analog input channels. The SAR algorithm performs a binary search: starting from the MSB, a DAC output is compared against the sampled input voltage using an internal comparator. For each bit, the DAC output is adjusted up or down based on the comparator result, converging on the input value within 8 clock cycles. The result is stored in an internal register and can be read via I2C at speeds up to 400kHz. The reference voltage can be supplied externally via the REF pin or derived from the internal 2.5V reference. The BUSY pin goes low during conversion to indicate the ADC is busy. Channel selection and operating mode are configured through I2C registers.","pin_description":" | Pin<\/th> | Name<\/th> | Type<\/th> | Function<\/th><\/tr> |
|---|
| 1<\/td> | VIN1<\/td> | Analog Input<\/td> | Analog input channel 1<\/td><\/tr> | | 2<\/td> | VIN2<\/td> | Analog Input<\/td> | Analog input channel 2<\/td><\/tr> | | 3<\/td> | VIN3<\/td> | Analog Input<\/td> | Analog input channel 3<\/td><\/tr> | | 4<\/td> | VIN4<\/td> | Analog Input<\/td> | Analog input channel 4<\/td><\/tr> | | 5<\/td> | VIN5<\/td> | Analog Input<\/td> | Analog input channel 5<\/td><\/tr> | | 6<\/td> | VIN6<\/td> | Analog Input<\/td> | Analog input channel 6<\/td><\/tr> | | 7<\/td> | VIN7<\/td> | Analog Input<\/td> | Analog input channel 7<\/td><\/tr> | | 8<\/td> | VIN8<\/td> | Analog Input<\/td> | Analog input channel 8<\/td><\/tr> | | 9<\/td> | REF<\/td> | Analog Input<\/td> | External reference \/ internal ref bypass<\/td><\/tr> | | 10<\/td> | GND<\/td> | Power<\/td> | Ground reference<\/td><\/tr> | | 11<\/td> | SDA<\/td> | I\/O<\/td> | I2C data line<\/td><\/tr> | | 12<\/td> | SCL<\/td> | Input<\/td> | I2C clock line<\/td><\/tr> | | 13<\/td> | CONVST<\/td> | Input<\/td> | Conversion start signal<\/td><\/tr> | | 14<\/td> | BUSY<\/td> | Output<\/td> | Conversion busy indicator<\/td><\/tr> | | 15<\/td> | VDD<\/td> | Power<\/td> | Supply voltage (2.7-5.25V)<\/td><\/tr> | | 16<\/td> | ASD<\/td> | Input<\/td> | Address select pin for I2C<\/td><\/tr><\/table>","application_scenarios":"- Industrial control<\/li>
- Consumer electronics<\/li>
- Communication equipment<\/li>
- Power management<\/li>","alternative_models":"
| Manufacturer<\/th> | Part Number<\/th> | Package<\/th> | Notes<\/th><\/tr> |
|---|
| Analog Devices<\/td> | AD7998BRUZ-0<\/td> | TSSOP-20<\/td> | 10-bit version, same family<\/td><\/tr> | | Analog Devices<\/td> | AD7997BRUZ-1<\/td> | TSSOP-20<\/td> | Different I2C address variant<\/td><\/tr> | | Microchip<\/td> | MCP3208-CI\/P<\/td> | DIP-16<\/td> | 12-bit 8-ch, SPI interface<\/td><\/tr> | | Texas Instruments<\/td> | ADS7828IRTJR<\/td> | TSSOP-16<\/td> | 12-bit 8-ch, I2C interface<\/td><\/tr> | | Maxim<\/td> | MAX11615EEE+<\/td> | QSOP-16<\/td> | 12-bit 8-ch, I2C interface<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5743","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=5743"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5743\/revisions"}],"predecessor-version":[{"id":5893,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5743\/revisions\/5893"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5743"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |
|
|