DH7107GP High-Performance 3½ Digit A/D Converter ±5V 1.8mA DIP-40

Description

DH7107GP High-Performance 3½ Digit A/D Converter ±5V 1.8mA DIP-40 The DH7107GP is a high-performance, low-power 3 2 1 ​ digit Analog-to-Digital (A/D) converter manufactured by WXDH Electronics . Designed to simplify your display system layouts, it includes seven-segment decoders, display drivers, an internal reference, and a clock on a single chip . This IC is specifically tailored to directly drive an instrument-size light emitting diode (LED) display without requiring additional active external circuits . Engineered for exceptional accuracy and economy, it utilizes a three-phase measurement cycle consisting of auto-zero, signal integrate, and de-integrate phases . It boasts excellent differential input capabilities and high common-mode rejection, making it highly advantageous for bridge-type transducer systems where input signals float relative to the power supply . Features: Direct LED Display Drive Guaranteed Zero Reading True Polarity at Zero Ultra-Low Input Bias Current Low Noise Performance Integrated Clock & Reference Highly Economical Power Enhanced System Stability Specifications: Absolute Maximum Ratings Parameter Ratings Unit V+ to GND 6 V V- to GND -6 V Analog Input Voltage (Either Input) V- to V+ – Reference Input Voltage (Either Input) V- to V+ – Clock Input GND to V+ – Power Dissipation 800 mW Working Temperature -25 ~ 70 °C Storage Temperature -25 ~ 100 °C Maximum Lead Temperature (Soldering 60s) 300 °C Electrical Characteristics Parameter Test Condition Min. Typ. Max. Unit Zero Input Reading V IN = 0.0V, Full Scale = 200mV -000.0 ±000.0 +000.0 Digital Reading Ratiometric Reading V IN = V REF , V REF = 100mV 999 999/1000 1000 Digital Reading Rollover Error -V IN = +V IN = 200mV -1 ±0.2 +1 counts Linearity Full Scale = 200mV or 2.000V -1 ±0.2 +1 counts Common Mode Rejection Ratio V CM = ±1V, V IN = 0V, Full Scale = 200.0mV – 50 – μV/V Noise V IN = 0V, Full Scale = 200.0mV – 15 – μV Leakage Current Input V IN = 0V – 1 10 pA Zero Reading Drift V IN = 0V – 0.2 1 µV/°C Scale Factor Temperature Coefficient V IN = 199.0mV – 1 5 ppm/°C Supply Current (V+ Power Supply) V IN = 0V – 0.8 1.8 mA Common Pin Analog Common Voltage 25kΩ Between Common and Positive Supply 2.7 3.05 3.35 V Temperature Coefficient of Analog Common (With Respect to + Supply) 25kΩ Between Common and Positive Supply – 20 50 ppm/°C Temperature Coefficient of Analog Common (With Respect to Supply) 25kΩ Between Common and Positive Supply – – 75 ppm/°C Segment Sinking Current +V = 5.0V, Segment Voltage = 3V 5 8.0 – mA Segment Sinking Current, Pin 19 +V = 5.0V, Segment Voltage = 3V 10 16 – mA Segment Sinking Current, Pin 20 +V = 5.0V, Segment Voltage = 3V 4 7 – mA Applications: Load cell measurement systems Digital weighing instruments Digital temperature measurement and tracking systems Floating, battery-powered instrument panel meters Package Content 1x DH7107GP High-Performance 3½ Digit A/D Converter ±5V 1.8mA DIP-40 Datasheet: DH7107GP

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