ADS1250U/1KG4 ,20-Bit Data Acquisition System Analog-to-Digital Converter 16-SOIC FEATURESThe ADS1250 is a precision, wide dynamic range,l 20 BITS NO MISSING CODESdelta-sigma, analo ..
ADS1250UG4 ,20-Bit Data Acquisition System Analog-to-Digital Converter 16-SOIC -40 to 85ADS1250®ADS1250For most current data sheet and other productinformation, visit www.burr-brown.com ..
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ADS1250U-ADS1250U/1KG4-ADS1250UG4
20-Bit Data Acquisition System Analog-to-Digital Converter 16-SOIC
ADS1250 ® ADS1250 For most current data sheet and other product information, visit www.burr-brown.com 20-Bit Data Acquisition System ANALOG-TO-DIGITAL CONVERTER DESCRIPTION FEATURES The ADS1250 is a precision, wide dynamic range,l20 BITS NO MISSING CODES delta-sigma, analog-to-digital converter with 20-bit l18 BITS EFFECTIVE RESOLUTION UP TO resolution operating from a single +5V supply. The 25kHz DATA RATE delta-sigma architecture is used for wide dynamic lLOW NOISE: 2.8ppm at PGA = 1 range and to guarantee 20 bits of no missing code performance. An effective resolution of 18 bits (2.8ppm lDIFFERENTIAL INPUTS of rms noise) is achieved for conversion rates up to lINL: 0.002% (MAX) 25kHz. The dynamic range of the converter is further lPROGRAMMABLE FULL SCALE increased by providing a low-noise Programmable Gain Amplifier (PGA) with gain stages of 1, 2, 4, or lI/O CONTROLLED PGA: 1, 2, 4, 8 8 for low level input signals. lEXTERNAL REFERENCE The ADS1250 is designed for high-resolution mea- surement applications in cardiac diagnostics, smart transmitters, industrial process control, weigh scales, APPLICATIONS chromatography and portable instrumentation. The lCARDIAC DIAGNOSTICS converter includes a flexible synchronous serial inter- face and offers a three-wire control mode for low-cost lDIRECT THERMOCOUPLE INTERFACE isolation. lBLOOD ANALYSIS The ADS1250 is a single-channel converter and is lINFRARED PYROMETER offered in an SOL-16 package. lLIQUID/GAS CHROMATOGRAPHY lPRECISION PROCESS CONTROL G0 G1 V REF CLK + SCLK +V IN 4th-Order Digital Serial ΔΣ DRDY PGA Filter Output Modulator –V IN – DOUT +V S AGND DSYNC Control CS +V D ADS1250 DGND International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1999 Burr-Brown Corporation PDS-1520B Printed in U.S.A. December, 1999 SBAS114
