TDSEMIC ICL7107-TD

The ICL7107 is a high-performance, low-power 3-1/2 digit dual-slope ADC with an integrated on-chip display driver. The device is designed for single-battery-powered systems and can directly drive non-multiplexed LED displays. The ADC itself offers versatility and high accuracy with immunity to high-noise environments. Its true differential high-impedance input and differential reference are ideal for ratiometric measurements such as resistors, strain gauges, and bridge sensors. The built-in auto-zero function automatically corrects system offset without external adjustment.

• Designed for single-cell power supply systems, operating voltage 7-15V, compatible with 9V batteries.
• Internal reference with low temperature drift.
• Direct LED display drive capability.
• High-impedance CMOS differential inputs.
• Low noise, stable display readings.
• Auto-zero cycle eliminates the need for zero adjustment.
• Internal oscillator — no external resistors or capacitors required.
• 3.0V reference voltage provided via COM pin.
• Display hold, low battery indicator, integrate and de-integrate status flags are four additional features available in the 44-pin package.
• Packages: DIP40, QFP44, Die.