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Numéro de sérieADC161S626
CategorieData Conversion => ADC (Analog to Digital Converters) => >14 bit => 16 bit
Description16-Bit, 50 To 250 KSPS, Differential Input, MicroPower ADC From The PowerWise® Family
The ADC161S626 is a 16-bit successive-approximation register (SAR) Analog-to-Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The ADC161S626 has a minimum signal span accuracy of ± 0.003% over the temperate range of ?40°C to +85°C. The converter features a differential analog input with an excellent common-mode signal rejection ratio of 85 dB, making the ADC161S626 suitable for noisy environments.

The ADC161S626 operates with a single analog supply (VA) and a separate digital input/output (VIO) supply. VA can range from +4.5V to +5.5V and VIO can range from +2.7V to +5.5V. This allows a system designer to maximize performance and minimize power consumption by operating the analog portion of the ADC at a VA of +5V while interfacing with a +3.3V controller. The serial data output is binary 2\'s complement and is SPI™ compatible.
SociétéNational Semiconductor Corporation
DatasheetTélécharger ADC161S626 datasheet
 
 
  • Description courte

  • The a 16-bit successive-approximation register (SAR) Analog-to-Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The ADC161S626 has a minimum signal span accuracy ± 0.003% over the temperate range to +85°C. The converter features a differential analog input with an excellent common-mode signal rejection ratio of 85 dB, making the ADC161S626 suitable for noisy environments. The ADC161S626 operates with a single analog supply (VA) and a separate digital input/output (VIO) supply. VA can range from to +5.5V and VIO can range from to +5.5V. This allows a system designer to maximize performance and minimize power consumption by operating the analog portion of the ADC of +5V while interfacing with a +3.3V controller. The serial data output is binary 2's complement and is SPITM compatible. The performance of the ADC161S626 is guaranteed over temperature at clock rates of 1 MHz to 5 MHz and reference voltages to +5.5V. The ADC161S626 is available in a small 10-lead MSOP package. The high accuracy, differential input, low power consumption, and small size make the ADC161S626 ideal for direct connection to bridge sensors and transducers in battery operated systems or remote data acquisition applications.

    Features

    16-bit resolution with no missing codes Guaranteed performance from to 250 kSPS ±0.003% signal span accuracy Separate Digital Input/Output Supply True differential input External voltage reference range to VA Zero-Power Track Mode with 0 µsec wake-up delay Wide input common-mode voltage range to VA SPITM/QSPITM/MICROWIRETM compatible Serial Interface Operating temperature range to +85°C Small MSOP-10 package

    Conversion Rate DNL INL Offset Error Temp Drift Gain Error Temp Drift SNR THD Power Consumption 10 kSPS, 5V 200 kSPS, 5V 250 kSPS, 5V Power-Down, 5V 50 kSPS to 250 kSPS LSB ± 0.8 LSB 2.5 µV/°C 0.3 ppm/°C 93.2 dBc - 104 dBc

    Applications

    Direct Sensor Interface I/O Modules Data Acquisition Portable Systems Motor Control Medical Instruments Instrumentation and Control Systems

    TRI-STATE® is a trademark of National Semiconductor Corporation. MICROWIRETM is a trademark of National Semiconductor Corporation. QSPITM and SPITM are trademarks of Motorola, Inc.

    Order Code ADC161S626CIMMX ADC161S626EB Temperature Range to +85°C Description 10-Lead MSOP Package, 1000 Units Tape & Reel 10-Lead MSOP Package, 3500 Units Tape & Reel Evaluation Board Top Mark X98C

    Description Voltage Reference +0.5V < VREF < VA Non-Inverting Input Inverting Input Ground Chip Select Bar Serial Data Output Serial Clock Digital Input/Output Power +2.7V < VREF < +5.5V Analog Power +4.5V < VREF < +5.5V

    If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Analog Supply Voltage VA Digital I/O Supply Voltage VIO Voltage on Any Analog Input Pin to GND Voltage on Any Digital Input Pin to GND Input Current at Any Pin (Note 3) Package Input Current (Note 3) Power Consumption = 25°C ESD Susceptibility (Note 5) Human Body Model Machine Model Charge Device Model Junction Temperature Storage Temperature -0.3V to (VA -0.3V to (VIO ±50 mA See (Note to +150°C

    TA +85°C Supply Voltage, to +5.5V Supply Voltage, VIO to +5.5V Reference Voltage, VREF to VA Analog Input Pins Voltage Range to VA Differential Analog Input Voltage -VREF to +VREF Input Common-Mode Voltage, VCM See Figure 10 (Sect 2.3) Digital Input Pins Voltage Range 0V to VIO Clock Frequency 1 MHz to 5 MHz Operating Temperature Range

    Soldering process must comply with National Semiconductor's Reflow Temperature Profile specifications. Refer to www.national.com/packaging. (Note 6)

    (Note 7) The following specifications apply for to 5.5V, VIO to 5.5V, and VREF to 5.5V for fSCLK = 1 MHz to 4 MHz or VREF to 5.5V for fSCLK = 1 MHz to 5 MHz; fIN = 20 kHz, and = 25 pF, unless otherwise noted. Maximum and minimum values apply for TA = TMIN to TMAX; the typical values are tested = 25°C. Symbol Parameter Resolution with No Missing Codes DNL INL OE OEDRIFT FSE GE GEDRIFT Differential Non-Linearity Integral Non-Linearity Offset Error Offset Error Temperature Drift Positive Full-Scale Error Negative Full-Scale Error Positive Gain Error Negative Gain Error Gain Error Temperature Drift VREF = 2.5V VREF = 5V VREF = 2.5V VREF = 5V Conditions Min Typ Max Units Bits LSB mV µV/°C %FS ppm/° C dBc bits MHz STATIC CONVERTER CHARACTERISTICS

    DYNAMIC CONVERTER CHARACTERISTICS SINAD SNR THD SFDR ENOB FPBW Signal-to-Noise Plus Distortion Ratio Signal-to-Noise Ratio Total Harmonic Distortion Spurious-Free Dynamic Range Effective Number of Bits -3 dB Full Power Bandwidth VREF = 2.5V VREF to 5.5V VREF = 2.5V VREF to 5.5V VREF = 2.5V VREF to 5.5V VREF = 2.5V VREF to 5.5V VREF = 2.5V VREF to 5.5V Output at 70.7%FS with FS Differential Input