3 1 2 digit lcd display datasheet in stock

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The Intersil is a high performance, low power 31/2 digit, A/D converter. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7136 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive. The ICL7136 brings together a combination of high accuracy, versatility, and true economy. It features auto-zero to less than 10�V, zero drift of less than 1�V/oC, input bias current of 10pA (Max), and rollover error of less than one count. True differential inputs and reference are useful in all systems, but give the designer an uncommon advantage when measuring load cells, strain gauges and other bridge type transducers. Finally, the true economy of single power supply operation, enables a high performance panel meter to be built with the addition of only 10 passive components and a display. The is an improved version of the ICL7126, eliminating the overrange hangover and hysteresis effects, and should be used in its place in all applications. It can also be used as a plug-in replacement for the in a wide variety of applications, changing only the passive components.

First Reading Overrange Recovery in One Conversion Period Guaranteed Zero Reading for 0V Input on All Scales True Polarity at Zero for Precise Null Detection 1pA Typical Input Current True Differential Input and Reference, Direct Display Drive - LCD ICL7136 Low Noise - Less Than 15�VP-P On Chip Clock and Reference No Additional Active Circuits Required Low Power - Less Than 1mW Surface Mount Package Available Drop-In Replacement for ICL7126, No Changes Needed

REF LO REF HI CREF + CREF (1000) AB4 (MINUS) POL OSC 1 39 OSC 2 38 OSC 3 37 TEST 36 REF HI 35 REF LO 34 CREF + 33 CREF 32 COMMON LO 29 A-Z 28 BUFF 27 INT G3 21 BP/GND (100"s) NC TEST OSC 3 NC OSC 2 OSC A3 G3 BP/GND POL F3 B3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 321-724-7143 | Intersil and Design is a trademark of Intersil Americas Inc. | Copyright � Intersil Americas Inc. 2001

Supply Voltage to V-.15V Analog Input Voltage (Either Input) (Note V+ to VReference Input Voltage (Either Input). V+ to VClock Input ICL7136. TEST to V+

PDIP Package. 50 MQFP Package. 75 Maximum Junction Temperature.150oC Maximum Storage Temperature Range. to 150oC Maximum Lead Temperature (Soldering 10s). 300oC (MQFP - Lead Tips Only)

NOTES: 1. Input voltages may exceed the supply voltages provided the input current is limited JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

VIN = 0V, Full Scale = 200mV VlN = VREF , VREF = 100mV -VIN = +VlN 200mV Difference in Reading for Equal Positive and Negative Inputs Near Full Scale Full Scale 200mV or Full Scale = 2V Maximum Deviation from Best Straight Line Fit (Note 5) VCM = �1V, VIN = 0V, Full Scale = 200mV (Note 5) VIN = 0V, Full Scale = 200mV (Peak-To-Peak Value Not Exceeded 95% of Time) (Note 5) VlN = 0V (Note 5) VlN To 70oC (Note 5) VIN To 70oC, (Ext. Ref. 0ppm/�oC) (Note 5) 25k Between Common and Positive Supply (With Respect to + Supply) 25k Between Common and Positive Supply (With Respect to + Supply) (Note 5)

Scale Factor Temperature Coefficient COMMON Pin Analog Common Voltage Temperature Coefficient of Analog Common SUPPLY CURRENT V+ Supply Current DISPLAY DRIVER Peak-To-Peak Segment Drive Voltage and Peak-To-Peak Backplane Drive Voltage NOTES:

3. Unless otherwise noted, specifications apply to the = 25oC, fCLOCK ICL7136 is tested in the circuit of Figure 1. 4. Back plane drive is in phase with segment drive for "off" segment, 180 degrees out of phase for "on" segment. Frequency is 20 times conversion rate. Average DC component is less than 50mV. 5. Not tested, guaranteed by design. 6. 48kHz oscillator increases current by 20�A (Typ).

Versatile 3.5 digit (12.7mm) LCD universal digital panel meter (DPM) is based around a 7106 A/D Converter IC. Suitable for measuring either voltage, current or with some slight modification resistance.