ICL7129ACPL+2

The ICL7129ACPL+2 is a low noise, 4-1/2 digit, single chip analogue to digital converter (ADC) with multiplexed LCD driver in 40 pin DIP package. This high precision monolithic 4-1/2 digit ADC directly drives a multiplexed liquid crystal display using a novel 'successive integration' technique. It has a ±20,000count resolution on both 2.00000V & 200.00mV ranges. It features high impedance differential inputs, excellent differential linearity, true ratiometric operation and auto polarity. The only external active component required to make precision DVM/DPMs is a reference. The overrange and underrange outputs and the 10:1 range changing input facilitate the design of autoranging systems. It detects and flags a LOW BATTERY condition and also checks for continuity, giving a visual indication and a logic level output which can be used to generate an audible signal. Device can be used for wide range of precision digital voltmeter, multimeter and panel meter applications.

• Supply voltage range is 6V to 14V
• Operating temperature range from 0°C to 70°C
• Count resolution is ±19, 999
• Peak to peak noise of 3µV
• Onboard multiplexed LCD display driver 4-1/2 digits, 4 decimal points, 3 annunciators
• Instant continuity detector
• Low battery detector and indicator
• Overrange/underrange outputs, Eliminates need for compensation capacitor
• Monolithic, low power CMOS design
• Resolution of 10µV, significantly improved ESD protection

Applications

Signal Processing, Industrial

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party