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    首页产品索引ADS7229

    ADS7229

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    低功耗、12 位、1MHz 单/双路单极输入 ADC,具有串行接口

    制造商:TI

    中文数据手册

    产品信息

    描述The ADS7229 is a low-power, 12-bit, 1MSPS analog-to-digital converter (ADC) with a unipolar input. The device includes a 12-bit capacitor-based successive approximation register (SAR) ADC with inherent sample-and-hold. The ADS7230 is based on the same core and includes a 2-to-1 input MUX with a programmable TAG bit output option.Both the ADS7229 and ADS7230 offer a high-speed, wide voltage serial interface and are capable of daisy-chain mode operation when multiple converters are used. These devices are available in 4 × 4 QFN and TSSOP-16 packages, and are fully specified for operation over the industrial -40°C to +85°C temperature range.特性2.7V to 5.5V Analog Supply, Low Power: 13.7mW (1MHz, +VA = 3V, +VBD = 1.8V) 1MHz Sampling Rate 3V ≤ +VA ≤ 5.5V,900kHz Sampling Rate 2.7V ≤ +VA ≤ 3V Excellent DC Performance: ±0.15LSB Typ, ±0.5LSB Max INL ±0.12LSB Typ, ±0.5LSB Max DNL ±0.8mV Max Offset Error at 3V ±1.25mV Max Offset Error at 5V Excellent AC Performance at fi = 10kHz with 73.9dB SNR, 93.4dB SFDR, -88.5dB THD Built-In Conversion Clock (CCLK) 1.65V to 5.5VI/O Supply: SPI/DSP-Compatible Serial Interface SCLK up to 50MHz Comprehensive Power-Down Modes: Deep Power-Down Nap Power-Down Auto Nap Power-Down Unipolar Input Range: 0V toVREF Software Reset Global CONVST (Independent of CS) Programmable Status/Polarity EOC/INT 4 × 4 QFN-16 and TSSOP-16 PackagesMulti-Chip Daisy-Chain Mode Programmable TAG Bit Output Auto/Manual Channel Select Mode (ADS7230) APPLICATIONS Communications Transducer Interface Medical Instruments Magnetometers Industrial Process Control Data Acquisition Systems Automatic Test EquipmentSPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners

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