DP-650 Series
Miniature LCD Display Digital Panel Meters
Description
The DP-650 Series is an ultra-compact, low-power LCD meter requiring only 15mW of
power. This meter is ideal for applications requiring a highly reliable LCD display in a
small package. The snap-in bezel packaging enables easy and rapid installation of the
meter. The simplicity of design, overvoltage protection, and low power consumption all
contribute to the high reliability of this device.
Three input voltage ranges are available: 200mV, 2VDC, and 20VDC. A 4-20mA
current input adapter (DP-670) is also offered. Automatic polarity, overrange indication,
adjustable decimal point, and display HOLD are standard features. The DP-650 Series
employs a dual slope integrating A/D converter, and operates from an internal 100mV
reference via a precision DC-to-DC converter. Typical accuracy is 0.1%.
F e a t u r e s
T e c h n i c a l N o t e s
1. The connection shown utilizes differential inputs. For single-ended operation, INPUT(-) is
strapped to GND. If the signal is isolated from the power source, connect INPUT(-) to GND
either directly or through a 10K resistor network as shown to reduce common mode errors.
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Convenient snap-in bezel package
Very low power consumption (5VDC @ 3mA)
Differential input, 3 voltage ranges
0.1% typical accuracy
2. Display holds reading when HOLD is high (+5V). Readings are updated when HOLD is low
or floating.
User-selectable decimal point
Hold-display function
3. The decimal point is user selectable by connecting the decimal point pins (4, 5, or 6) to DP
COM (pin 3).
Overvoltage protection
4. Full-scale input span is adjusted prior to shipment. Further calibration is possible by adjusting
the trimpot mounted on the back of the DPM.
Quantity discounts
5. Unused pins should be left open.
A p p l i c a t i o n s
O r d e r i n g I n f o r m a t i o n
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Portable/mobile equipment
Medical instruments
Model
DP-650
DP-652
DP-654
APS-5
C-10
Description
Avionics/aerospace systems
Office equipment
Miniature DPM LCD 200mV
Miniature DPM LCD 2V
Miniature DPM LCD 20V
120V AC to 5V DC Power Supply
Connector - 10 pin
6
A C C U L E X
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1 - 8 8 8 - 4 7 2 - 6 6 7 6
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F a x 1 - 8 8 8 - 2 1 0 - 0 1 1 9
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a c c u l e x . c o m