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ADS8557IPMR Datasheet(PDF) 1 Page - Texas Instruments |
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ADS8557IPMR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 40 page 1 FEATURES DESCRIPTION APPLICATIONS CDAC1 CDAC2 SARRegister1/2 S/H S/H Comparator Comparator CDAC3 CDAC4 SARRegister3/4 S/H S/H Comparator Comparator CDAC5 CDAC6 SARRegister5/6 StringDAC Clock Generator S/H S/H Comparator Comparator Internal2.5V Reference I/O Control Logic Config Register CH_A0 CONVST_A CH_A1 AGND AGND REFC_A CH_B0 CONVST_B CH_B1 AGND AGND REFC_B CH_C0 CONVST_C CH_C1 AGND AGND REFC_C REF IO _ HVSS AVDD AGND ADS8556 ADS8557 ADS8558 Buffer Buffer Buffer Buffer HVDD BVDD BGND HW/SW REF /WR EN STBY RESET RANGE/XCLK BUSY/INT DB[15:0] WORD/BYTE PAR/SER RD CS /FS ADS8556 ADS8557 ADS8558 www.ti.com ............................................................................................................................................... SBAS404A – OCTOBER 2006 – REVISED AUGUST 2009 16-, 14-, 12-Bit, Six-Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS 2 • Family of 16-, 14-, 12-Bit, Pin- and The ADS8556/7/8 contain six low-power, 16-, 14-, or Software-Compatible ADCs 12-bit, successive approximation register (SAR) based analog-to-digital converters (ADCs) with true • Six SAR ADCs Grouped in Three Pairs bipolar inputs. Each channel contains a • Maximum Data Rate Per Channel with Internal sample-and-hold circuit that allows simultaneous Conversion Clock and Reference: high-speed multi-channel signal acquisition. ADS8556: 630kSPS (PAR) or 450kSPS (SER) The ADS8556/7/8 support data rates of up to ADS8557: 670kSPS (PAR) or 470kSPS (SER) 730kSPS in parallel interface mode or up to 500kSPS ADS8558: 730kSPS (PAR) or 500kSPS (SER) if the serial interface is used. The bus width of the • Maximum Data Rate with External Conversion parallel interface can be set to eight or 16 bits. In Clock and Reference: serial mode, up to three output channels can be 800kSPS (PAR) or 530kSPS (SER) activated. • Pin-Selectable or Programmable Input Voltage The ADS8556/7/8 is specified over the full industrial Ranges: Up to ±12V temperature range of –40°C to +125°C and is • Excellent Signal-to-Noise Performance: available in an LQFP-64 package. 91.5dB (ADS8556) 85dB (ADS8557) 73.9dB (ADS8558) • Programmable and Buffered Internal Reference: 0.5V to 2.5V and 0.5V to 3.0V • Comprehensive Power-Down Modes: Deep Power-Down (Standby Mode) Partial Power-Down Auto-Nap Power-Down • Selectable Parallel or Serial Interface • Operating Temperature Range: –40°C to +125°C • LQFP-64 Package • Power Quality Measurement • Protection Relays • Multi-Axis Motor Control • Programmable Logic Controllers • Industrial Data Acquisition 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 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2009, 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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