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ADC081S101CIMFX Fiches technique(PDF) 1 Page - National Semiconductor (TI) |
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ADC081S101CIMFX Fiches technique(HTML) 1 Page - National Semiconductor (TI) |
1 / 23 page ADC121S101/ADC101S101/ADC081S101 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & LLP General Description The ADC121S101, ADC101S101, and ADC081S101 are low power, monolithic CMOS 12-, 10- and 8-bit analog-to-digital converters that operate at 1 MSPS. Each device is based on a successive approximation register architecture with inter- nal track-and-hold. The serial interface is compatible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces. The ADC121S101/101S101/081S101 uses the supply volt- age as a reference. This enables the devices to operate with a full-scale input range of 0 to V DD. The conversion rate is determined from the serial clock (SCLK) speed. These con- verters offer a shutdown mode, which can be used to trade throughput for power consumption. The ADC121S101/ 101S101/081S101 are operated with a single supply that can range from +2.7V to +5.25V. Normal power consumption during continuous conversion, using a +3V or +5V supply, is 2 mW or 10 mW, respectively. The power down feature, which is enabled by a chip select (CS) pin, reduces the power consumption to under 5 µW using a +5V supply. All three converters are available in a 6-lead SOT-23 package, which provides an extremely small footprint for applications where space is a critical consideration. The ADC081S101 is also available in a 6-lead LLP package. These products are designed for operation over the industrial temperature range of −40˚C to +85˚C, with some parameters specified to +125˚C for the ADC121S101. Features n Variable power management n Packaged in 6-lead SOT-23 (ADC081S101 also available in a 6-Lead LLP package) n Power supply used as reference n Single +2.7V to +5.25V supply operation n SPI™/QSPI™/MICROWIRE™/DSP compatible Key Specifications n Resolution with no Missing Codes 12/10/8 bits n Conversion Rate 1 MSPS n DNL (ADC121S101) +0.5, -0.3 LSB (typ) n INL (ADC121S101) ± 0.4 LSB (typ) n Power Consumption — 3V Supply 2 mW (typ) — 5V Supply 10 mW (typ) Applications n Automotive Navigation n FA/ATM Equipment n Portable Systems n Medical Instruments n Mobile Communications n Instrumentation and Control Systems Connection Diagram 20110201 MICROWIRE™ is a trademark of National Semiconductor Corporation. TRI-STATE® is a trademark of National Semiconductor Corporation. QSPI™ and SPI™ are trademarks of Motorola, Inc. January 2005 © 2005 National Semiconductor Corporation DS201102 www.national.com |
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Description similaire - ADC081S101CIMFX |
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