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ADC084S021 데이터시트(PDF) 1 Page - National Semiconductor (TI) |
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ADC084S021 데이터시트(HTML) 1 Page - National Semiconductor (TI) |
1 / 19 page ADC124S021 4 Channel, 200 kSPS, 12-Bit A/D Converter General Description The ADC124S021 is a low-power, four-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 ADC124S021 is fully speci- fied over a sample rate range of 50 kSPS to 200 kSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to four input signals at inputs IN1 through IN4. The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROW- IRE, and many common DSP serial interfaces. The ADC124S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respec- tively. The power-down feature reduces the power consump- tion to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply. The ADC124S021 is packaged in a 10-lead MSOP package. Operation over the industrial temperature range of −40˚C to +85˚C is guaranteed. Features n Specified over a range of sample rates. n Four input channels n Variable power management n Single power supply with 2.7V - 5.25V range Key Specifications n DNL +0.4 / −0.2 LSB (typ) n INL ± 0.35 LSB (typ) n SNR 72.0 dB (typ) n Power Consumption — 3V Supply 2.2 mW (typ) — 5V Supply 7.9 mW (typ) Applications n Portable Systems n Remote Data Aquisitions n Instrumentation and Control Systems Pin-Compatible Alternatives by Resolution and Speed All devices are fully pin and function compatible. Resolution Specified for Sample Rate Range of: 50 to 200 kSPS 200 to 500 kSPS 500 kSPS to 1 MSPS 12-bit ADC124S021 ADC124S051 ADC124S101 10-bit ADC104S021 ADC104S051 ADC104S101 8-bit ADC084S021 ADC084S051 ADC084S101 Connection Diagram 20124305 TRI-STATE® is a trademark of National Semiconductor Corporation QSPI™ and SPI™ are trademarks of Motorola, Inc. April 2005 © 2005 National Semiconductor Corporation DS201243 www.national.com |
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