Features

The DPM 3AS-BL is an ultra-miniature 3½ digit LCD voltmeter with 11mm (0.43") 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 3AS-BL is intended to replace the DPM 3, DPM 3S, DPM 3-BL and DPM 3S-BL in many applications, usually requiring only minor circuit modifications. This is a popular part, normally stocked in high quantity and suitable for new designs.

Specification		Min.	Typ.	Max.	Unit
Accuracy (overall error) *			0.1		% (±1 count)
Linearity				±1	count
Sample rate			2.5		samples/sec
Operating temperature range		0		50	°C
Temperature stability			250		ppm/°C
Supply voltage	V+ to GND configuration	3.0	5.0	7.5**	V d.c.
	V+ to V-	6.0	9.0	15.0**	V d.c.
Supply current	V+ to GND configuration		350		uA
	V+ to V-		175		uA
Backlight supply voltage		4.75	5.0	***	V d.c.
Backlight supply current @ 5V d.c.			40	60	mA
Input leakage current (Vin=0V)			1	10	pA

* To ensure maximum accuracy, re-calibrate periodically
** Operation of the meter beyond maximum supply voltage rating may cause permanent damage to the meter.
*** An external series resistor is required above 5V, see Application section of the data sheet