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ADC121S021CIMF Datasheet(PDF) 1 Page - Texas Instruments |
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ADC121S021CIMF Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page MCU V A GND V IN SAR ADC CS SDATA SCLK Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. ADC121S021 SNAS305J – JULY 2005 – REVISED MARCH 2016 ADC121S021 Single-Channel, 50- to 200-ksps, 12-Bit A/D Converter 1 1 Features 1 • Specified Over a Range of Sample Rates • Variable Power Management • Single Power Supply With 2.7-V to 5.25-V Range • Compatible With the SPI, QSPI, MICROWIRE, and DSP • Key Specifications: – DNL: 0.45 and –0.25 LSB (Typical) – INL: 0.45 and –0.4 LSB (Typical) – SNR: 72.3 dB (Typical) – Power Consumption – 3.6-V Supply: 1.5 mW (Typical) – 5.25-V Supply: 7.9 mW (Typical) 2 Applications • Portable Systems • Remote Data Acquisition • Instrumentation and Control Systems 3 Description The ADC121S021 device is a low-power, single- channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC121S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based upon a successive-approximation register architecture with an internal track-and-hold circuit. The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces. The ADC121S021 operates with a single supply that can range from 2.7 V to 5.25 V. Normal power consumption using a 3.6-V or 5.25-V supply is 1.5 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a 5.25-V supply. The ADC121S021 is packaged in 6-pin WSON and SOT-23 packages. Operation over the industrial temperature range of –40°C to 85°C is ensured. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) ADC121S021 SOT-23 (6) 2.90 mm × 1.60 mm WSON (6) 2.50 mm × 2.20 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Key Graphic |
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