DMS-30LCD Datasheet, PDF (1/6 Pages) Murata Power Solutions Inc. – 3½ Digit, LCD Display Digital Panel Voltmeters

DMS-30LCD Series
3½ Digit, LCD Display Digital Panel Voltmeters
FEATURES
N Large (0.4"/10.2mm), enhanced-contrast, LCD display
N Single +5V supply or 9V battery
N Power as low as 3.2mW
N Miniature size:
2.17" x 0.92" x 0.43" (55mm x 23mm x 11mm)
N Epoxy-encapsulated, 12-pin DIP
N _{Backlit displays optional}
N 4 differential input voltage ranges
N _{High accuracy, ±1 count (±0.05%)}
N _{Autopolarity changeover and overrange indication}
N User-selectable decimal point placement
N Numerous "plug-on" application boards
N 0 to +60°C temperature range
+5V SUPPLY/ ¹
+BATTERY
3 _{DISPLAY TEST/ 2}
BACKLIGHT
5V RETURN/ ³
–BATTERY
4
DP 3
5
DP 2
6
DP 1
+5V
DC/DC ²
CONVERTER
J1
0 Vdc
Offering all the outstanding features and benefits of DATEL’s industry leading DMS-
20LCD Series of 3½ Digit LCD Panel Meters, DMS-30LCD meters offer larger, more easily
readable displays at slightly higher power consumptions. Like all DMS Series LCD meters,
these miniature (2.17” x 0.92” x 0.43”), epoxy-encapsulated devices offer component-like
ease-of-use, outstanding reliability and easy installation in either panels or pc-cards.
DMS-30LCD devices operate from a single +5V supply or a 9V battery. Battery-oper-
ated units typically draw 350μA and consume a mere 3.2mW. Backlit models are available
for low-light applications; though we have found many designers prefer DATEL’s unique
low-power LED meters in those circumstances.
Offering 4 optional input voltage ranges (±200mV, ±2V, ±20V or ±200V), DMS-30LCD
meters have an extremely user-friendly input structure. They can be used in differential
or single-ended modes. Input impedance is a minimum 800kΩ. CMRR is typically 86dB.
CMV is ±2V, and inputs are overvoltage protected to ±100V.
Each meter incorporates an extremely stable, double regulated reference and is fully
calibrated at our factory prior to encapsulation. We guarantee outstanding initial accuracy
(±1 count) and excellent stability over temperature (±0.15 counts/°C). These extremely
rugged meters are moisture and vibration proof and never require adjustment or recalibra-
tion.
For popular applications (4-to-20mA, rms-to-dc conversion, ac line power, J and K
thermocouples, etc.), the DMS-30LCD Series includes a complete line of "plug-on" applica-
tion boards that conveniently convert your meter into an application-specific instrument.
V+
–5V
V–
A/D
CONVERTER
DATA
0.01μF
z+2.0V
1.23V
REF.
+5V
R2 ¹
12
(–) INPUT LO
R1
909k
11
(+) INPUT HI
10 _ANALOG
COMMON
1.82k
9
+1.23V REFERENCE OUT
8
REFERENCE OUT
7
REFERENCE IN
1 R2 is not used on ±200mV (-0) models or ±2V (-1) models.
R2 = 100k on ±20V (-2) models and 9.1k on ±200V (-3) models.
Ḥ
For full details go to
www.murata-ps.com/rohs
2 _{DC/DC converter is not used on 9V-powered models,}
J1 is connected.
3 Display Test function is not available on backlit models.
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
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