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ICL7135CPIZ Datasheet(PDF) 1 Page - Intersil Corporation |
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ICL7135CPIZ Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 15 page 1 ® FN3093.4 ICL7135 41/2 Digit, BCD Output, A/D Converter The Intersil ICL7135 precision A/D converter, with its multiplexed BCD output and digit drivers, combines dual- slope conversion reliability with ±1 in 20,000 count accuracy and is ideally suited for the visual display DVM/DPM market. The 2.0000V full scale capability, auto-zero, and auto- polarity are combined with true ratiometric operation, almost ideal differential linearity and true differential input. All necessary active devices are contained on a single CMOS lC, with the exception of display drivers, reference, and a clock. The ICL7135 brings together an unprecedented combination of high accuracy, versatility, and true economy. It features auto-zero to less than 10 μV, zero drift of less than 1μV/oC, input bias current of 10pA (Max), and rollover error of less than one count. The versatility of multiplexed BCD outputs is increased by the addition of several pins which allow it to operate in more sophisticated systems. These include STROBE, OVERRANGE, UNDERRANGE, RUN/HOLD and BUSY lines, making it possible to interface the circuit to a microprocessor or UART. Features • Accuracy Guaranteed to ±1 Count Over Entire ±20000 Counts (2.0000V Full Scale) • Guaranteed Zero Reading for 0V Input • 1pA Typical Input Leakage Current • True Differential Input • True Polarity at Zero Count for Precise Null Detection • Single Reference Voltage Required • Overrange and Underrange Signals Available for Auto- Range Capability • All Outputs TTL Compatible • Blinking Outputs Gives Visual Indication of Overrange • Six Auxiliary Inputs/Outputs are Available for Interfacing to UARTs, Microprocessors, or Other Circuitry • Multiplexed BCD Outputs • Pb-Free Plus Anneal Available (RoHS Compliant) Pinout ICL7135 (PDIP) TOP VIEW Ordering Information PART NUMBER PART MARKING TEMP. RANGE (°C) PACKAGE PKG. DWG. # ICL7135CPI ICL7135CPI 0 to +70 28 Ld PDIP E28.6 ICL7135CPIZ (Note 1) ICL7135CPIZ 0 to +70 28 Ld PDIP (Pb-free) (Note 2) E28.6 NOTES: 1. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 2. Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications. V- REFERENCE NALOG COMMON INT OUT AZ IN BUFF OUT REF CAP - REF CAP + IN LO IN HI V+ (MSD) D5 (LSB) B1 B2 UNDERRANGE STROBE R/H DIGITAL GND POL BUSY D2 D3 D4 (MSB) B8 B4 OVERRANGE CLOCK IN (LSD) D1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Data Sheet August 28, 2007 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2000, 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. |
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