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ADS8508IBDWR Datasheet(PDF) 1 Page - Texas Instruments |
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ADS8508IBDWR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page BurrBrown Products from Texas Instruments FEATURES APPLICATIONS DESCRIPTION Successive Approximation Register Clock Comparator CS CDAC Buffer REF CAP R1IN 10 k Ω 4.9 k Ω Internal +2.5 V Ref 4 k Ω Serial Data Out & Control BUSY DATACLK DATA 2.5 k Ω 9.8 k Ω R2IN R3IN EXT/INT R/C SB/BTC PWRD ADS8508 SLAS433 – SEPTEMBER 2005 12-BIT 250-KSPS SERIAL CMOS SAMPLING ANALOG-TO-DIGITAL CONVERTER • Industrial Process Control • 250-kHz Sampling Rate • Data Acquisition Systems • 4-V, 5-V, 10-V, ±3.33-V, ±5-V, and ±10-V Input • Digital Signal Processing Ranges • Medical Equipment • 73-dB SINAD With 45-kHz Input • Instrumentation • ±0.45 LSB Max INL • ±0.45 LSB Max DNL, 12-Bits No Missing Codes The ADS8508 is a complete 12-bit sampling • ±1 LSB Bipolar Zero Errors analog-to-digital (A/D) converter using state-of-the-art • ±0.4 PPM/°C Bipolar Zero Error Drift CMOS structures. It contains a complete 12-bit, • Six Specified Input Ranges capacitor-based, successive approximation register (SAR) A/D converter with sample-and-hold, refer- • SPI Compatible Serial Output with ence, clock, and a serial data interface. Data can be Daisy-Chain (TAG) Feature output using the internal clock or can be • 5-V Supply synchronized to an external data clock. The ADS8508 • Pin-Compatible With ADS7808 (Low Speed) also provides an output synchronization pulse for and 16-Bit ADS8509/7809 ease of use with standard DSP processors. • Uses Internal or External Reference The ADS8508 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors • 70-mW Typ Power Dissipation at 250 KSPS provide various input ranges including ±10 V and 0 V • 20-Pin SO Package to 5 V, while the innovative design allows operation • Simple DSP Interface from a single +5-V supply with power dissipation under 100 mW. The ADS8508 is available in a 20-pin SO package, fully specified for operation over the industrial -40°C to 85°C temperature range. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2005, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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