Compact 3½ Digit LCD Voltmeter - DPM 1AS-BL

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The DPM 1AS-BL is an ultra-miniature 3½ digit LCD voltmeter with 5.5mm (0.22") digit height and LED backlighting. It features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. The meter plugs directly into a SIL socket or can be snapped into a panel. Connection to the meter is via two rows of pins. The DPM 1AS-BL is intended to replace the DPM 1, DPM 1S, DPM 1-BL and DPM 1S-BL in many applications, usually requiring only minor circuit modifications.


• 5.5mm (0.22") Digit Height
• 3 to7.5V or 6 to15V Operation
• 200mV Full Scale Reading
• LED Back-lighting
• Auto-zero & Auto-polarity


• Accuracy (overall error): 0.005 to 0.01 % (±1 count)
• Linearity: ±1count
• Sample rate: 1.6 samples/sec
• Operating temperature range: 0 to 50 °C
• Temperature stability: 30 ppm/°C
• Supply voltage (V+ to V-): 6 to 9 V d.c.
• Supply voltage (V+ to GND configuration): 3 to 7.5 V d.c.
• Supply current (V+ to V-): 175 uA
• Supply current (V+ to GND configuration): 350 uA
• Input leakage current (Vin = 0V): 1-10 pA

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