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ADS8331 Datasheet(PDF) 1 Page - Texas Instruments |
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ADS8331 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page SDI SCLK SDO CDAC SAR Comparator Output Latch and 3-State Driver Conversion and Control Logic _ + FS/CS CONVST EOC/INT/CDI RESET REF+ M U X ADCIN MUXOUT IN[0:3] or IN[0:7] COM REF- ADS8331 ADS8332 www.ti.com SBAS363 – DECEMBER 2009 Low-Power, 16-Bit, 500kSPS, 4-/8-Channel Unipolar Input ANALOG-TO-DIGITAL CONVERTERS with Serial Interface Check for Samples: ADS8331, ADS8332 1 FEATURES DESCRIPTION 234 • Low-Power, Flexible Supply Range: The ADS8331 is a low-power, 16-bit, 500k samples-per-second (SPS) analog-to-digital converter – 2.7V to 5.5V Analog Supply (ADC) with a unipolar, 4-to-1 multiplexer (mux) input. – 8.7mW (250kSPS in Auto-Nap Mode, The device includes a 16-bit capacitor-based VA = 2.7V, VBD = 1.65V) successive approximation register (SAR) ADC with – 14.2mW (500kSPS, VA = 2.7V, VBD = 1.65V) inherent sample and hold. • Up to 500kSPS Sampling Rate The ADS8332 is based on the same core and • Excellent DC Performance: includes a unipolar 8-to-1 input mux. Both devices offer a high-speed, wide-voltage serial interface and – ±1.2 LSB Typ, ±2 LSB Max INL at 2.7V are capable of daisy-chain operation when multiple – ±0.6 LSB Typ, –1.0/1.5 LSB Max DNL at 2.7V converters are used. – 16-Bit NMC Over Temperature These converters are available in 24-pin, 4x4 QFN • Excellent AC Performance at 5V, fIN = 1kHz: and 24-pin TSSOP(1) packages and are fully specified – 91.5dB SNR, 101dB SFDR, –100dB THD for operation over the industrial –40°C to +85°C temperature range. • Flexible Analog Input Arrangement: – On-Chip 4-/8-Channel Mux with Breakout Low-Power, High-Speed, SAR Converter Family – Auto/Manual Channel Select and Trigger RESOLUTION/TYPE CHANNELS 500kSPS 1MHz • Other Hardware Features: 1 ADS8327 ADS8329 – On-Chip Conversion Clock (CCLK) 2 ADS8328 ADS8330 16-Bit Pseudo-Diff – Software/Hardware Reset 4 ADS8331 — 8 ADS8332 — – Programmable Status/Polarity EOC/INT 1 — ADS7279 – Daisy-Chain Mode 2 — ADS7280 – Global CONVST (Independent of CS) 14-Bit Pseudo-Diff 4 ADS8301 — – Deep, Nap, and Auto-Nap Powerdown 8 ADS8302 — Modes 1 — ADS7229 – SPI™/DSP Compatible Serial Interface 12-Bit Pseudo-Diff 2 — ADS7230 – Separate I/O Supply: 1.65V to VA – SCLK up to 40MHz (VA = VBD = 5V) BLANKSPACE • 24-Pin 4x4 QFN and 24-Pin TSSOP(1) Packages Functional Block Diagram APPLICATIONS • Communications • Transducer Interfaces • Medical Instruments • Magnetometers • Industrial Process Control • Data Acquisition Systems • Automatic Test Equipment (1) TSSOP (PW) package available Q1, 2010. 1 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. 2 TMS320 is a trademark of Texas Instruments. 3 SPI is a trademark of Motorola, Inc.. 4 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009, 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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