ADC121S101CIMF/NOPB National Semiconductor, ADC121S101CIMF/NOPB Datasheet
ADC121S101CIMF/NOPB
Specifications of ADC121S101CIMF/NOPB
ADC121S101CIMFTR
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ADC121S101CIMF/NOPB Summary of contents
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... Connection Diagram Ordering Information Order Code ADC121S101CISD ADC121S101CISDX ADC121S101CIMF ADC121S101CIMF ADC121S101EVAL TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2010 National Semiconductor Corporation ADC121S101 Features ■ Specified over a range of sample rates. ■ 6-lead LLP and SOT-23 packages ■ Variable power management ■ ...
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Block Diagram Pin Descriptions and Equivalent Circuits Pin No. Symbol ANALOG I/O V Analog input. This signal can range from DIGITAL I/O 4 SCLK Digital clock input. This clock directly controls the conversion and readout ...
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... Absolute Maximum Ratings 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Analog Supply Voltage V A Voltage on Any Digital Pin to GND Voltage on Any Analog Pin to GND Input Current at Any Pin (Note 3) Package Input Current ...
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Symbol Parameter THD Total Harmonic Distortion SFDR Spurious-Free Dynamic Range ENOB Effective Number of Bits Intermodulation Distortion, Second Order Terms IMD Intermodulation Distortion, Third Order Terms FPBW -3 dB Full Power Bandwidth ANALOG INPUT CHARACTERISTICS V Input Range IN I ...
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Symbol Parameter Power Consumption, Normal Mode (Operational, CS low Power Consumption, Shutdown (CS high) AC ELECTRICAL CHARACTERISTICS f Clock Frequency SCLK f Sample Rate S DC SCLK Duty Cycle Minimum Time Required for t ACQ Acquisition t (Note ...
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Note 7: Tested limits are guaranteed to National's AOQL (Average Outgoing Quality Level). Note 8: This is the frequency range over which the electrical performance is guaranteed. The device is functional over a wider range which is specified under Operating ...
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Timing Diagrams FIGURE 1. Timing Test Circuit FIGURE 2. ADC121S101 Serial Timing Diagram 7 20145008 20145006 www.national.com ...
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Specification Definitions ACQUISITION TIME is the time required to acquire the input voltage. That is time required for the hold capacitor to charge up to the input voltage. Acquisition time is measured backwards from the falling edge of ...
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Typical Performance Characteristics MHz to 20 MHz 100 kHz unless otherwise stated. SCLK IN DNL MHz SCLK DNL MHz SCLK DNL vs. Clock Frequency T = +25° ...
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SNR vs. Clock Frequency SFDR vs. Clock Frequency Spectral Response MHz SCLK www.national.com 20145063 20145067 = 5.25V A 20145069 10 SINAD vs. Clock Frequency 20145064 THD vs. Clock Frequency 20145068 Spectral Response 5.25V A ...
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Power Consumption vs. Throughput MHz SCLK 20145055 11 www.national.com ...
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Applications Information 1.0 ADC121S101 OPERATION The ADC121S101 is a successive-approximation analog-to- digital converter designed around a charge-redistribution dig- ital-to-analog converter core. Simplified schematics of the ADC121S101 in both track and hold modes are shown in Figure 3 and Figure 4, ...
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... TYPICAL APPLICATION CIRCUIT A typical application of the ADC is shown in is provided in this example by the National Semiconductor LP2950 low-dropout voltage regulator, available in a variety of fixed and adjustable output voltages. The power supply pin is bypassed with a capacitor network located close to the ADC ...
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ANALOG INPUTS An equivalent circuit for the ADC's input is shown in 7. Diodes D1 and D2 provide ESD protection for the analog inputs time should the analog input go beyond (V 300 mV) or (GND − ...
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To exit shutdown mode, bring CS back low. Upon bringing CS low, the ADC will begin powering up (power-up time is specified in the Timing Specifications table). This power-up delay results in the first conversion result being unusable. The second ...
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Physical Dimensions Order Number ADC121S101CISD or ADC121S101CISDX www.national.com inches (millimeters) unless otherwise noted 6-Lead LLP NS Package Number SDB06A 6-Lead SOT-23 Order Number ADC121S101CIMF, ADC121S101CIMFX NS Package Number MF06A 16 ...
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Notes 17 www.national.com ...
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