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DMS-20PC Scheda tecnica(PDF) 1 Page - Murata Power Solutions Inc.

Il numero della parte DMS-20PC
Spiegazioni elettronici  3쩍 Digit, LED Display, Low-Cost, Subminiature Digital Panel Voltmeters
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Produttore elettronici  MURATA-PS [Murata Power Solutions Inc.]
Homepage  http://www.murata-ps.com
Logo MURATA-PS - Murata Power Solutions Inc.

DMS-20PC Scheda tecnica(HTML) 1 Page - Murata Power Solutions Inc.

  DMS-20PC Datasheet HTML 1Page - Murata Power Solutions Inc. DMS-20PC Datasheet HTML 2Page - Murata Power Solutions Inc. DMS-20PC Datasheet HTML 3Page - Murata Power Solutions Inc. DMS-20PC Datasheet HTML 4Page - Murata Power Solutions Inc. DMS-20PC Datasheet HTML 5Page - Murata Power Solutions Inc. DMS-20PC Datasheet HTML 6Page - Murata Power Solutions Inc.  
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(+) INPUT HI
(–) INPUT LO
ANALOG
COMMON
REFERENCE OUT
REFERENCE IN
+5V SUPPLY
R1
DP 1
DP 2
DP 3
6
5
4
11
12
10
8
7
1
3
DC/DC
CONVERTER
2
5V RETURN
+5V
–5V
R2
»+2.0V
DATA
909k
V+
V–
A/D
CONVERTER
0 Vdc
0.01
μF
9
DISPLAY
ENABLE
+5V
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.
Only used on ±200mV (-0) and ±2V (-1) models.
DISPLAY
TEST/HOLD
11
Pin 9 is DISPLAY TEST on all but eight models. On those models
(-H option), it is DISPLAY HOLD.
1
2
3
2
1
3
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
DMS-20PC Series
3½ Digit, LED Display, Low-Cost, Subminiature
Digital Panel Voltmeters
MPM_DMS_20PC.D02 Page 1 of 6
DMS-20PC Series, 3½ Digit, LED Display, Digital Panel Voltmeters combine a preci-
sion A/D converter; a factory-trimmed, highly stable, voltage reference; and a large
(0.37"/9.4mm), easy-to-read LED display in a single package that is only slightly larger
than the display itself. Displays are offered in either red, orange, amber, yellow, green or
blue colors. High-intensity and low-power (35mW total) red LEDs are also optional.
These low-cost meters are fully self-contained and fully functional. Their subminiature
(1.38" x 0.88" x 0.48"), epoxy-encapsulated cases incorporate built-in color filters and
bezels; are moisture and vibration proof; and function well in the harshest environments.
Their 12-pin, dual-in-line configuration offers component-like, plug-in convenience and
maximum versatility. Operating temperature range is 0 to +60°C.
The meters come with one of four, differential, input voltage ranges: ±200mV, ±2V
±20V or ±200V. Input impedance is a minimum 800kΩ. CMRR is typically 86dB (dc to
60Hz), and CMV is ±2V. Input overvoltage protection (on the non-inverting input) is ±250V.
Devices are fully calibrated at the factory to an accuracy of ±1 count (±0.05% of full scale
range) and never require calibration or adjustment.
A DISPLAY ENABLE function permits the display to be disabled for "power-down"
operation. All models have a DISPLAY TEST function. Standard red LED models offer an
optional DISPLAY HOLD function.
Small size, low cost and adjustment-free reliability make the DMS-20PC Series the best
choice for all your 3½ digit, LED, DPM applications.
FEATURES
Lowest-cost LED meters
Subminiature size:
1.38" x 0.88" x 0.48" (35mm x 22mm x 12mm)
Large (0.37"/9.4mm) LED display
Choice of 6 LED colors
High-intensity or low-power (7mA) red LEDs optional
Epoxy-encapsulated, 12-pin DIP package with built-in
color filter and bezel
4 differential input voltage ranges
Factory calibrated, ±1 count accuracy
Single +5V power supply
User-selectable decimal point placement
DISPLAY ENABLE function for "power-down" mode
DISPLAY TEST and HOLD (optional) functions
0 to +60°C temperature range
SIMPLIFIED SCHEMATIC DIAGRAM
Figure 1. DMS-20PC Series simplified schematic
New
Low-po
wer blue
and green
LEDs


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