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ADS7229IRSATG4 Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7229IRSATG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 46 page 1 FEATURES APPLICATIONS DESCRIPTION REF +IN REF+ SDI SCLK SDO CDAC SAR COMPARATOR OUTPUT LATCH and TRI-STATE DRIVER CONVERSION and CONTROL LOGIC -IN +IN1 +IN0 COM NC OSC _ + ADS7230 ADS7229 FS/CS CONVST EOC/INT/CDI ADS7229 ADS7230 www.ti.com........................................................................................................................................................................................................ SBAS437 – MAY 2008 LOW-POWER, 12-BIT, 1MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE • Communications 23 • 2.7V to 5.5V Analog Supply, Low Power: • Transducer Interface – 13.7mW (1MHz, +VA = 3V, +VBD = 1.8V) • Medical Instruments • 1MHz Sampling Rate 3V ≤ +VA ≤ 5.5V, • Magnetometers 900kHz Sampling Rate 2.7V ≤ +VA ≤ 3V • Industrial Process Control • Excellent DC Performance: • Data Acquisition Systems – ±0.15LSB Typ, ±0.5LSB Max INL • Automatic Test Equipment – ±0.12LSB Typ, ±0.5LSB Max DNL – ±0.8mV Max Offset Error at 3V – ±1.25mV Max Offset Error at 5V The ADS7229 is a low-power, 12-bit, 1MSPS • Excellent AC Performance at f i = 10kHz with analog-to-digital converter (ADC) with a unipolar 73.9dB SNR, 93.4dB SFDR, –88.5dB THD input. The device includes a 12-bit capacitor-based successive approximation register (SAR) ADC with • Built-In Conversion Clock (CCLK) inherent sample-and-hold. • 1.65V to 5.5V I/O Supply: The ADS7230 is based on the same core and – SPI™/DSP-Compatible Serial Interface includes a 2-to-1 input MUX with a programmable – SCLK up to 50MHz TAG bit output option. Both the ADS7229 and • Comprehensive Power-Down Modes: ADS7230 offer a high-speed, wide voltage serial interface and are capable of daisy-chain mode – Deep Power-Down operation when multiple converters are used. – Nap Power-Down These devices are available in 4 × 4 QFN and – Auto Nap Power-Down TSSOP-16 packages, and are fully specified for • Unipolar Input Range: 0V to V REF operation over the industrial –40 °C to +85°C • Software Reset temperature range. • Global CONVST (Independent of CS) Low Power, High-Speed SAR Converter Family • Programmable Status/Polarity EOC/INT Type/Speed 500 kSPS 1 MSPS • 4 × 4 QFN-16 and TSSOP-16 Packages Single ADS8327 ADS8329 • Multi-Chip Daisy-Chain Mode 16-bit single-ended Dual ADS8328 ADS8330 • Programmable TAG Bit Output Single ADS7279 • Auto/Manual Channel Select Mode (ADS7230) 14-bit single-ended Dual ADS7280 Single ADS7229 12-bit single-ended Dual ADS7230 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 SPI is a trademark of Motorola, Inc. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008, 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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