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ADS8555SPMR bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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ADS8555SPMR bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 43 page 94 92 90 88 86 84 82 80 78 76 74 72 70 -40 -25 -10 5 20 35 50 65 125 Temperature( C) ° 80 95 110 AVDD=BVDD=5V HVSS= 15V,HVDD=15V f =10kHz,f =Max Range= 4 V InternalReference - ± ´ SIGNAL DATA REF SARADC String DAC 2.5V/3V REF BUSY/INT RANGE/XCLK HW/SW REF /WR RESET EN STBY CS RD / DB[15:0] WORD/BYTE PAR/SER FS CH_A0 CONVST_A AGND REFC_A REF_IO AVDD BVDD BGND AGND HVDD HVSS Control Logic Config Register I/O SARADC CH_A1 AGND SARADC CH_B0 CONVST_B AGND REFC_B SARADC CH_B1 AGND SARADC CH_C0 CONVST_C AGND REFC_C SARADC CH_C1 AGND Clock Generator Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. ADS8555 SBAS531D – DECEMBER 2010 – REVISED FEBRUARY 2016 ADS8555 16-Bit, Six-Channel, Simultaneous Sampling Analog-to-Digital Converter 1 1 Features 1 • Six SAR ADCs Grouped in Three Pairs • Maximum Data Rate Per Channel With Internal Clock and Reference: 630 kSPS (Parallel) or 450 kSPS (Serial) • Maximum Data Rate Per Channel With External Clock and Reference: 800 kSPS (Parallel) or 500 kSPS (Serial) • Pin-Selectable or Programmable Input Voltage Ranges: Up to ±12 V • Excellent AC Performance: 91.5-dB SNR, –94-dB THD • Programmable and Buffered Internal Reference: 0.5 V to 2.5 V and 0.5 V to 3 V • Comprehensive Power-Down Modes: – Deep Power Down (Standby Mode) – Auto-Nap Power Down • Selectable Parallel or Serial Interface • Operating Temperature Range: –40°C to 125°C • LQFP-64 Package 2 Applications • Power Quality Measurements • Protection Relays • Multi-Axis Motor Controls • Programmable Logic Controllers • Industrial Data Acquisition SNR vs Temperature 3 Description The ADS8555 device contains six low-power, 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel contains a sample-and-hold circuit that allows simultaneous high-speed multi- channel signal acquisition. The ADS8555 device supports data rates of up to 630 kSPS in parallel interface mode or up to 450 kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight or 16 bits. In serial mode, up to three output channels can be activated. The ADS8555 device is specified over the extended industrial temperature range of –40°C to 125°C and is available in an LQFP-64 package. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) ADS8555 LQFP (64) 10.00 mm × 10.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Block Diagram |
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