Intersil ICL7116 free download

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ICL7116, ICL7117 January 1998 3 1/2 Digit, LCD/LED Display, A/D Converter with Display Hold Description The Intersil ICL7116 and ICL7117 are high performance, low power, 31/2 digit, A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7116 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive. The ICL7117 will directly drive an instrument size, light emitting diode (LED) display. The ICL7116 and ICL7117 have all of the features of the ICL7106 and ICL7107 with the addition of a HOLD Reading input. With this input, it is possible to make a measurement and retain the value on the display indefinitely. To make room for this feature the reference low input has been connected to Common internally rather than being fully differential. These circuits retain the accuracy, versatility, and true economy of the ICL7106 and ICL7107. They feature auto-zero to less than 10µV, zero drift of less than 1µV/oC, input bias current of 10pA maximum, and roll over error of less than one count. The versatility of true differential input is of particular advantage when measuring load cells, strain gauges and other bridge-type transducers. And finally, the true economy of single power supply operation (ICL7116) enables a high performance panel meter to be built with the addition of only eleven passive components and a display. Features · HOLD Reading Input Allows Indefinite Display Hold · Guaranteed Zero Reading for 0V Input · True Polarity at Zero for Precise Null Detection · 1pA Typical Input Current · Direct Display Drive - LCD ICL7116 - LED lCL7117 · Low Noise - Less Than 15µVP-P (Typ) · On Chip Clock and Reference · Low Power Dissipation - Typically Less Than 10mW · No Additional Active Circuits Required · Surface Mount Package Available Ordering Information PART NUMBER ICL7116CPL ICL7116CM44 ICL7117CPL TEMP. RANGE (oC) 0 to 70 0 to 70 0 to 70 PACKAGE 40 Ld PDIP 44 Ld MQFP 40 Ld PDIP PKG. NO. E40.6 Q44.10x10 E40.6 Pinouts ICL7116, ICL7117 (PDIP) TOP VIEW HLDR D1 C1 B1 (1's) A1 F1 G1 E1 D2 C2 (10's) B2 A2 F2 E2 D3 (100's) B3 F3 E3 (1000) AB4 (MINUS) POL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 OSC 1 39 OSC 2 38 OSC 3 37 TEST 36 REF HI 35 V+ 34 CREF+ 33 CREF32 COMMON 31 IN HI 30 IN LO 29 A-Z 28 BUFF 27 INT 26 V25 G2 (10's) 24 C3 23 A3 22 G3 21 BP/GND A1 F1 G1 E1 D2 C2 B2 A2 F2 E2 D3 (100's) NC NC TEST OSC 3 NC OSC 2 OSC 1 HLDR D1 C1 B1 1 44 43 42 41 40 39 38 37 36 35 34 33 2 32 3 4 5 6 7 8 9 10 31 30 29 28 27 26 25 24 NC G2 C3 A3 G3 BP POL AB4 E3 F3 B3 ICL7116 (MQFP) TOP VIEW COMMON REF HI CREF+ CREF - IN LO BUFF IN HI A-Z INT V+ 11 23 12 13 14 15 16 17 18 19 20 21 22 V- CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 File Number 3083.2 1 ICL7116, ICL7117 Absolute Maximum Ratings Supply Voltage ICL7116, V