DMC-20LCD-1-9-C Murata Power Solutions Inc, DMC-20LCD-1-9-C Datasheet

DPM, LCD, 3.5DIGIT, 9V

DMC-20LCD-1-9-C

Manufacturer Part Number
DMC-20LCD-1-9-C
Description
DPM, LCD, 3.5DIGIT, 9V
Manufacturer
Murata Power Solutions Inc
Datasheet

Specifications of DMC-20LCD-1-9-C

Supply Voltage Range
7.5V To 14V
No. Of Digits / Alpha
3.5
Display Size
46.38mm X 32.51mm
Panel Cutout Height
21.3mm
Panel Cutout Width
33.9mm
Operating Temperature Range
0°C To +60°C
Svhc
No SVHC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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FEATURES
Lowest cost
Lowest power, 2mW
Subminiature size:
Large (0.37"/9.4mm), enhanced-contrast LCD display
Epoxy-encapsulated, 12-pin DIP
Panel or pc-board mountable
4 differential input voltage ranges
High accuracy, ±1 count (±0.05%)
Single +5V supply or 9V battery
Low-battery annunciator
User-selectable decimal point placement
0 to +60°C temperature range
1.38" x 0.88" x 0.43"
35mm x 22mm x 11mm
+5V SUPPLY/
5V RETURN/
+BATTERY
–BATTERY
DP 3
DP 2
DP 1
N.C.
1
2
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.
1
2
3
4
5
6
0 Vdc
CONVERTER
DC/DC
J1
3
+5V
Figure 1. DMS-20LCD Series Simplified Schematic
DATA
CONVERTER
–5V
combination of low price, low power, small size and high performance in digital meters.
Epoxy encapsulated in a subminiature (1.38” x 0.88” x 0.43”), 12-pin DIP package, these
completely self-contained, fully operational meters offer a combination of ruggedness,
long-term reliability and component-like ease-of-use simply not available in any other
meters.
DMS-20LCD meters are extremely accurate (±1 count) and are only slightly larger than
their 0.37"/9.4mm, enhanced-contrast, LCD displays. All models incorporate a built-in
bezel and are easily mounted in either panels or pc boards. Both backlit and non-backlit
versions are available.
±200V) and a user-friendly input structure. Input impedance is a minimum 800kΩ. CMRR
is typically 86dB with a CMV of ±2V. Non-inverting inputs are overvoltage protected to
±100V (±250V for the ±200V input model).
+9V supply/battery (drawing 230µA). All models have a low-battery ("B") annunciator and
feature autopolarity changeover and overrange indication.
back of any DMS-20LCD allowing direct inputs for common applications such as 4-20mA
inputs, zero/gain adjust, decimal point location, and input voltage dividing.
A/D
DMS-20LCD Series, 3½ Digit, LCD Display, Digital Voltmeters represent the ultimate
Incorporating a precision reference and a factory-calibrated, autozeroing A/D converter,
DMS-20LCD meters have 4 differential input voltage ranges (±200mV, ±2V, ±20V and
All DMS-20LCD meters operate from a single +5V supply (drawing 400µA) or a single
Also available is an application/evaluation board (DMS-EB2) that plugs directly onto the
3½ Digit, LCD Display Low-Cost, Subminiature
V+
V–
3
4
Used on backlit models only.
N.C. for non-backlit models.
DC/DC converter is not used on 9V-powered models,
J1 is connected.
+5V
0.01µF
≈+2.0V
2
DMS-20LCD Series
D I G I T A L P A N E L M E T E R S
R2
1
909k
R1
Digital Panel Voltmeters
12
11
10
9
8
7
ANALOG
COMMON
REFERENCE OUT
REFERENCE IN
(–) INPUT LO
(+) INPUT HI
N.C./BACKLIGHT
MPM_DMS-20LCD_E00
4
Page 1 of 6

Related parts for DMC-20LCD-1-9-C

DMC-20LCD-1-9-C Summary of contents

Page 1

FEATURES Lowest cost ■ Lowest power, 2mW ■ Subminiature size: ■ 1.38" x 0.88" x 0.43" 35mm x 22mm x 11mm Large (0.37"/9.4mm), enhanced-contrast LCD display ■ Epoxy-encapsulated, 12-pin DIP ■ Panel or pc-board mountable ■ 4 differential input voltage ...

Page 2

DMS-20LCD Series Performance/Functional Specifications Typical +25°C and supply voltage = +5V (using the single-ended input A circuit) or +9V (using the differential input circuit), unless otherwise noted. Analog Inputs Min. Full Scale Input Range: DMS-20PC-0 – DMS-20PC-1 ...

Page 3

DMS-20LCD Series point location pins should be left open. For 5V-powered models, the decimal location pins are TTL compatible and may be hard wired as described above or driven with 5V TTL logic gates. 4. BACKLIGHT (Pin 9) Function: Grounding ...

Page 4

DMS-20LCD Series APPLICATIONS 2. Differential Input Configurations: Differential measurements can be made with either 5V-powered or 9V-powered meters. Figure 3, though not a practical real-world application, uses a voltage divider to demon- strate the concept of a differential input signal. ...

Page 5

DMS-20LCD Series APPLICATIONS Shunt Fsr Fsr Where Full scale reading (in Volts) Fsr I = Relative full scale current (in Amps) Fsr Example: For a meter with a 2V full scale ...

Page 6

DMS-20LCD Series MECHANICAL SPECIFICATIONS MECHANICAL DIMENSIONS: Inches (mm) TOLERANCES DEC ±0.02 (±0.51 DEC ±0.010 (±0.254) LEAD DIMENSIONS: 0.025 (0.635) x 0.025 (0.635) NOMINAL RECOMMENDED PC BOARD FINISHED HOLE DIAMETER: 0.042 ±0.003 (1.067 ±0.076) BEZEL INSTALLATION AND ...

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