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ADS8555 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS8555 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 37 page  ADS8555 www.ti.com SBAS531B – DECEMBER 2010 – REVISED FEBRUARY 2011 RECOMMENDED OPERATING CONDITIONS MIN TYP MAX UNIT Supply voltage, AVDD to AGND 4.5 5 5.5 V Low-voltage levels 2.7 3.0 3.6 V Supply voltage, BVDD to BGND 5V logic levels 4.5 5 5.5 V Input range = ±2 × VREF 2 × VREF 16.5 V Input supply voltage, HVDD to AGND Input range = ±4 × VREF 4 × VREF 16.5 V Input range = ±2 × VREF –16.5 –2 × VREF V Input supply voltage, HVSS to AGND Input range = ±4 × VREF –16.5 –4 × VREF V Reference input voltage (VREF) 0.5 2.5 3.0 V Input range = ±2 × VREF –2 × VREF 2 × VREF V Analog inputs (also see the Analog Inputs section) Input range = ±4 × VREF –4 × VREF 4 × VREF V Operating ambient temperature range, TA –40 +125 °C ELECTRICAL CHARACTERISTICS Over recommended operating free-air temperature range of –40°C to +125°C, AVDD = 4.5V to 5.5V, BVDD = 2.7V to 5.5V, HVDD = 10V to 15V, HVSS = –15V to –10V, VREF = 2.5V (internal), and fDATA = maximum, unless otherwise noted. ADS8555 PARAMETER CONDITIONS MIN TYP(1) MAX UNIT DC ACCURACY Resolution 16 Bits No missing codes 16 Bits At TA = –40°C to +85°C –3 ±1.5 3 LSB Integral linearity error INL At TA = –40°C to +125°C –4 ±1.5 4 LSB At TA = –40°C to +85°C –1 ±0.75 1.5 LSB Differential linearity error DNL At TA = –40°C to +125°C –1 ±0.75 2 LSB Offset error –4.0 ±0.8 4.0 mV Offset error drift ±3.5 μV/°C Gain error Referenced to voltage at REFIO –0.75 ±0.25 0.75 %FSR Gain error drift Referenced to voltage at REFIO ±6 ppm/ °C Power-supply rejection ratio PSRR At output code FFFFh, related to AVDD 60 dB SAMPLING DYNAMICS Acquisition time tACQ 280 ns Conversion time per ADC tCONV 1.26 μs 18.5 tCCLK Internal conversion clock period tCCLK 68.0 ns Parallel interface, internal clock and reference 630 kSPS Throughput rate fDATA Serial interface, internal clock and reference 450 kSPS AC ACCURACY At fIN = 10kHz, TA = –40°C to +85°C 90 91.5 dB Signal-to-noise ratio SNR At fIN = 10kHz, TA = –40°C to +125°C 89 91.5 dB At fIN = 10kHz, TA = –40°C to +85°C 87 89.5 dB Signal-to-noise ratio + distortion SINAD At fIN = 10kHz, TA = –40°C to +125°C 86.5 89.5 dB At fIN = 10kHz, TA = –40°C to +85°C –94 –90 dB Total harmonic distortion(2) THD At fIN = 10kHz, TA = –40°C to +125°C –94 –89.5 At fIN = 10kHz, TA = –40°C to +85°C 90 95 dB Spurious-free dynamic range SFDR At fIN = 10kHz, TA = –40°C to +125°C 89.5 95 dB Channel-to-channel isolation At fIN = 10kHz 100 dB Input Range = ±4 × VREF 48 MHz –3dB small-signal bandwidth Input Range = ±2 × VREF 24 MHz (1) All values are at TA = +25°C. (2) Calculated on the first nine harmonics of the input frequency. © 2010–2011, Texas Instruments Incorporated 3 Product Folder Link(s): ADS8555 |
Similar Part No. - ADS8555_14 |
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Similar Description - ADS8555_14 |
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