OEM335A

digital panel modules user guide OEM335A 3.5 digit LED voltmeter module features Bright, red LED display Single 5V DC operation. 10.16mm digit height Decimal point selectable Self mountable. Single ended or differential input. DESCRIPTION The OEM335A is a complete digital voltmeter module in a very compact package incorporating a dual-slope analogue to digital converter, a 100mV reference with 200mV full scale input sensitivity. The large sized LED makes the module easily readable from distance away. Auto-zeroing is provided by the circuit itself, so no zero adjustment is required. The module also has input polarity and over-range indication. ELECTRICAL CHARACTERISTICS TA=25OC¡ CHARACTERISTIC MIN TYP MAX UNIT Power supply Voltage 4.75 5 5.25 V Power Supply Current 180 mA Sampling Rate 2.5 Reading/sec. Accuracy 0.1 ±1 % ± digits Input Impedance 100 MΩ Input leakage Current 1 10 PA Temperature Coefficient 100 PPM/oC DIMENSIONS mm PIN FUNCTIONS PIN SYMBOL...