ICL7116 Intersil, ICL7116 Datasheet
ICL7116
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ICL7116 Summary of contents
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... 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 (Typ) input. With this input possible to make a measurement and retain the value on the display indefi ...
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... Absolute Maximum Ratings Supply Voltage ICL7116 15V ICL7117 GND ICL7117 GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-9V Analog Input Voltage (Either Input) (Note 1 Reference Input Voltage (Either Input Clock Input ICL7116 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST to V+ ICL7117 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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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... Typical Applications and Test Circuits FIGURE 1. ICL7116 TEST CIRCUIT AND TYPICAL APPLICATION WITH LCD DISPLAY COMPONENTS SELECTED FOR 200mV FULL SCALE FIGURE 2. ICL7117 TEST CIRCUIT AND TYPICAL APPLICATION WITH LED DISPLAY COMPONENTS SELECTED FOR 200mV ...
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... Regulation lost when < 6.8V externally pulled down -)/2, COM the V circuit will turn off. COM • ICL7116 POWER SUPPLY: SINGLE Digital supply is generated internally 4.5V TEST • ICL7116 DISPLAY: LCD Type: Direct drive with digital logic supply amplitude. ...
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... OSC3 39 6 OSC2 40 7 OSC1 ICL7116, ICL7117 FUNCTION Input Display Hold Control. Output Driver Pin for Segment “D” of the display units digit. Output Driver Pin for Segment “C” of the display units digit. Output Driver Pin for Segment “B” of the display units digit. ...
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... Detailed Description Analog Section Figure 3 shows the Analog Section for the ICL7116 and ICL7117. Each measurement cycle is divided into three phases. They are (1) auto-zero (A-Z), (2) signal integrate (INT) and (3) de-integrate (DE). Auto-Zero Phase During auto-zero three things happen. First, input high and low are disconnected from the pins and internally shorted to analog COMMON ...
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... REF HI COMMON FIGURE 4. USING AN EXTERNAL REFERENCE TEST The TEST pin serves two functions. On the ICL7116 it is coupled to the internally generated digital supply through a 500 resistor. Thus it can be used as the negative supply for externally generated segment drivers such as decimal points or any other annunciator the user may want to include on the LCD display ...
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... FOR CLARITY OSC 1 ICL7116, ICL7117 Digital Section V+ Figures 7 and 8 show the digital section for the ICL7116 and ICL7117, respectively. In the ICL7116, an internal digital ground is generated from a 6V Zener diode and a large P-Channel source follower. This supply is made stiff to absorb TO LCD DECIMAL ...
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... FOR CLARITY OSC 1 System Timing Figure 9 shows the clocking arrangement used in the ICL7116 and ICL7117. 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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... The integrating capacitor should be selected to give the maximum voltage swing that ensures tolerance buildup will not saturate the integrator swing (approximately. 0.5V from either supply). In the ICL7116 or the ICL7117, when the analog COMMON is used as a reference, a nominal +2V full- scale integrator swing is fine. For the ICL7117 with +5V supplies and analog COMMON tied to supply ground ...
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... Typical Applications The ICL7116 and ICL7117 may be used in a wide variety of configurations. The circuits which follow show some of the possibilities, and serve to illustrate the exceptional versatil- ity 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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... A silicon diode-connected transistor has a temperature coefficient of about -2mV/ transistor in ice water and adjusting the zeroing potentiometer for a 000.0 reading. The sensor should then be placed in boiling water and the scale-factor potentiometer adjusted for a 100.0 reading. FIGURE 16. ICL7116 USED AS A DIGITAL CENTIGRADE 12 40 100k 39 ...
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... B1 maximum dimensions do not include dambar protrusions. Dambar protrusions shall not exceed 0.010 inch (0.25mm the maximum number of terminal positions. 10. Corner leads (1, N, N/2 and N for E8.3, E16.3, E18.3, E28.3, E42.6 will have a B1 dimension of 0.030 - 0.045 inch (0.76 - 1.14mm). ICL7116, ICL7117 E40.6 40 LEAD DUAL-IN-LINE PLASTIC PACKAGE SYMBOL A ...
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... For information regarding Intersil Corporation and its products, see web site http://www.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (407) 724-7000 FAX: (407) 724-7240 ICL7116, ICL7117 Q44.10x10 44 LEAD METRIC PLASTIC QUAD FLATPACK PACKAGE SYM- BOL ...