ICL7107 Intersil Corporation, ICL7107 Datasheet
ICL7107
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ICL7107 Summary of contents
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... CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 ICL7106, ICL7107, ICL7106S, ICL7107S LCD/LED Display, A/D Converters Description The Intersil ICL7106 and ICL7107 are high performance, low 1 power digit A/D converters. Included are seven seg- 2 ment decoders, display drivers, a reference, and a clock ...
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... ICL7106, ICL7107, ICL7106S, ICL7107S Pinouts ICL7106, ICL7107 (PDIP) TOP VIEW (1’ (10’ (100’ (1000) AB4 19 20 POL (MINUS TEST OSC 3 NC ...
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... Analog Input Voltage (Either Input) (Note 1 Reference Input Voltage (Either Input Clock Input ICL7106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST to V+ ICL7107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND to V+ Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specifi ...
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... C 4 FIGURE 1. ICL7106 TEST CIRCUIT AND TYPICAL APPLICATION WITH LCD DISPLAY COMPONENTS SELECTED FOR 200mV FULL SCALE FIGURE 2. ICL7107 TEST CIRCUIT AND TYPICAL APPLICATION WITH LED DISPLAY COMPONENTS SELECTED FOR 200mV FULL SCALE TEST CONDITIONS V+ = 5V, Segment Voltage = ...
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... Digital supply is generated internally 4.5V GND • ICL7106 DISPLAY: LCD Type: Direct drive with digital logic supply amplitude. • ICL7107 POWER SUPPLY: DUAL 5. +5V to GND V- = -5V to GND Digital Logic and LED driver supply V+ to GND • ICL7107 DISPLAY: LED (Typ Type: Non-Multiplexed Common Anode ...
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... COMMON INT A-Z AND FIGURE 3. ANALOG SECTION OF ICL7106 AND ICL7107 the end of this phase, the polarity of the integrated signal is determined. De-Integrate Phase The final phase is de-integrate, or reference integrate. Input low is internally connected to analog COMMON and input high is connected across the previously charged reference capacitor ...
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... The limitations of the on chip reference should also be recognized, however. With the ICL7107, the internal heating which results from the LED drivers can cause some degradation in performance. Due to their higher thermal resis- tance, plastic parts are poorer in this respect than ceramic. ...
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... ON. In all cases negligible DC voltage exists across the segments. TO LCD DECIMAL Figure 8 is the Digital Section of the ICL7107 identical POINTS to the ICL7106 except that the regulated supply and back plane drive have been eliminated and the segment drive has been increased from 2mA to 8mA, typical for instrument size common anode LED displays ...
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... ONE INVERTER SHOWN FOR CLARITY OSC 1 System Timing Figure 9 shows the clocking arrangement used in the ICL7106 and ICL7107. Two basic clocking arrangements can be used: 1. Figure 9A. An external oscillator connected to pin 40. 2. Figure 9B. An R-C oscillator using all three pins. The oscillator frequency is divided by four before it clocks the decade counters ...
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... In the ICL7106 or the ICL7107, when the analog COMMON is used as a reference, a nominal +2V full- scale integrator swing is fine. For the ICL7107 with +5V supplies and analog COMMON tied to supply ground, a 3.5V to +4V swing is nominal. For three readings/second (48kHz clock) nominal values for C 0 ...
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... ICL7106, ICL7107, ICL7106S, ICL7107S Typical Applications The ICL7106 and ICL7107 may be used in a wide variety of configurations. The circuits which follow show some of the possibilities, and serve to illustrate the exceptional versatility of these A/D converters. The following application notes contain very useful information on understanding and applying this part and are available from Intersil Corporation ...
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... COMMON 0. BUFF V- An external reference must be used in this application, since the voltage between V+ and V- is insufficient for correct operation of the internal reference. FIGURE 16. ICL7107 OPERATED FROM SINGLE + PIN 1 OSC 1 40 100k OSC 2 39 OSC 3 38 SET V REF ...
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... BUFF 28 INT 27 0. DISPLAY GND 21 The resistor values within the bridge are determined by the desired sensitivity. FIGURE 17. ICL7107 MEASUREING RATIOMETRIC VALUES OF QUAD LOAD CELL LOGIC ...
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... ICL7106, ICL7107, ICL7106S, ICL7107S Typical Applications (Continued) TO PIN 1 OSC 1 40 100k OSC 2 39 OSC 3 38 100pF TEST 37 REF HI 36 REF REF 0 REF COMMON 0.47 F A-Z 29 47k BUFF 28 INT 27 0. DISPLAY BACKPLANE Test is used as a common-mode reference level to ensure compatibility with most op amps ...
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... ICL7106, ICL7107, ICL7106S, ICL7107S Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. In case of conflict between English and Metric dimensions, the inch dimensions control. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. ...
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... ICL7106, ICL7107, ICL7106S, ICL7107S Metric Plastic Quad Flatpack Packages (MQFP/PQFP -D- - PIN 1 - -16 0.40 0.20 0.016 MIN 0.008 o 0 MIN -16 L All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. ...