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ADC121S051CISD bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI) |
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ADC121S051CISD bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI) |
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1 / 16 page  ADC121S051 Single Channel, 200 to 500 ksps, 12-Bit A/D Converter General Description The ADC121S051 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 per- formance at a single sample rate only, the ADC121S051 is fully specified over a sample rate range of 200 ksps to 500 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 ADC121S051 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3.6V or +5.25V supply is 1.7 mW and 8.7 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a +5.25V supply. The ADC121S051 is packaged in 6-lead LLP and SOT-23 packages. Operation over the industrial temperature range of −40˚C to +85˚C is guaranteed. Features n Specified over a range of sample rates. n 6-lead LLP and SOT-23 packages n Variable power management n Single power supply with 2.7V - 5.25V range n SPI™/QSPI™/MICROWIRE/DSP compatible Key Specifications n DNL +0.5/-0.25 LSB (typ) n INL +0.45/-0.40 LSB (typ) n SNR 72.0 dB (typ) n Power Consumption — 3.6V Supply 1.7 mW (typ) — 5.25V Supply 8.7 mW (typ) Applications n Portable Systems n Remote Data Acquisition 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 ADC121S021 ADC121S051 ADC121S101 10-bit ADC101S021 ADC101S051 ADC101S101 8-bit ADC081S021 ADC081S051 ADC081S101 Connection Diagram 20144605 Ordering Information Order Code Temperature Range Description Top Mark ADC121S051CISD −40˚C to +85˚C 6-Lead LLP Package X4C ADC121S051CISDX −40˚C to +85˚C 6-Lead LLP Package, Tape and Reel X4C ADC121S051CIMF −40˚C to +85˚C 6-Lead SOT-23 Package X13C ADC121S051CIMFX −40˚C to +85˚C 6-Lead SOT-23 Package, Tape & Reel X13C ADC121S051EVAL SOT-23 Evaluation Board TRI-STATE® is a trademark of National Semiconductor Corporation QSPI™ and SPI™ are trademarks of Motorola, Inc. February 2006 © 2006 National Semiconductor Corporation DS201446 www.national.com |
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