DMS-20 Datel, DMS-20 Datasheet - Page 2

• Manufacturer Part Number: DMS-20
• Description: LCD SEGMENTED NUMERIC CHARACTER MODULE
• Manufacturer: Datel

Performance/Functional Specifications
Typical at T
(using the differential input circuit), unless otherwise noted.
Analog Inputs
Full Scale Input Range:
Input Impedance:
Overvoltage Protection:
Common Mode Voltage Range
CMRR (dc to 60Hz)
Control Inputs
Decimal Point Placement (Pins 4-6):
Backlight (Pin 9)
Performance
Sampling Rate
Accuracy (1 minute warm-up):
Zero Reading (V
Temperature Drift (0 to +60°C)
Power Supply Requirements (5V Models)
Supply Voltage
Supply Current:
Power Supply Requirements (9V Models)
Supply Voltage
Supply Current:
Display
Display Type and Size
Polarity Indication
Overrange Indication
Physical/Environmental
Operating Temperature
Storage Temperature
Humidity (Non-condensing)
Case Material
Weight
DMS-20LCD
DMS-20LCD-0
DMS-20LCD-1
DMS-20LCD-2
DMS-20LCD-3
DMS-20LCD-0, -1
DMS-20LCD-2, -3
DMS-20LCD-0, -1, -2
DMS-20LCD-3
Functionality
Logic Compatibility
DMS-20LCD-0 (V
DMS-20LCD-1 (V
DMS-20LCD-2 (V
DMS-20LCD-3 (V
Standard Models
Backlit Models
Standard Models
Backlit Models
A
= +25°C and supply voltage = +5V (using the single-ended input circuit) or +9V
IN
= 0 Volts)
IN
IN
IN
IN
= +0.19V)
= +1.9V)
= +19V)
= +190V)
"–001"
Min.
+4.75
+7.5
100
–20
0.8
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--
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0
0
3 ½ D I G I T , L C D D I S P L A Y D I G I T A L P A N E L V O L T M E T E R S
Autopolarity ("–" for negative V
3½ Digit LCD, 0.37"/9.4mm high
Tie to pin 3 to turn on backlight
TTL (on 5V-powered models)
"–1_ _ _" for negative V
2.5 samples per second
"1_ _ _" for positive V
Tie to pin 3 to activate
0.4 ounces (11 grams)
+5.00
Typ.
±200
±200
"000"
+400
+230
1000
±0.2
+9.0
±20
+35
+35
±2
±1
±1
±2
±2
86
Polycarbonate
1
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Max.
"001"
+5.25
+14.0
±100
±250
+600
+350
±0.4
+50
+50
+60
+75
±2
±2
±2
±3
±3
95
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IN
IN
Cnts/°C
Counts
Counts
Counts
Counts
IN
Units
Volts
Volts
Volts
Volts
Volts
Volts
Volts
Volts
)
M
M
mV
mA
dB
µA
µA
mA
°C
°C
%
2
Technical Notes
1. REFERENCE OUTPUT (Pin 8) and INPUT (Pin 7): Pin 8 is a
2. ANALOG COMMON (Pin 10): This pin is connected to an
3. Decimal Point Placement: The location of the decimal point is
Ordering Information
Applies for transient or continuous overvoltages applied to (+) INPUT
HI (pin 11) with (–) INPUT LO (pin 12) properly connected. Pin 12 is
not overvoltage protected (see Figure 1). Voltages applied to pin 12
should not exceed the supply voltage.
Listed spec applies to 5V-powered models only. For 9V-powered
models, both (–) INPUT LO (pin 12) and (+) INPUT HIGH (pin 11)
must always be at least 1.5V above –BATTERY (pin 3) and at least
1.5V below +BATTERY (pin 1).
See Technical Notes.
precision reference actively trimmed at the factory. In normal
operation, pin 8 must be tied to pin 7 to achieve all listed accuracy
and drift specifications.
internal, low-noise, "relative" ground. It is used in certain
differential and "floating" measurements as described in the
Applications section of this data sheet and Ap Note 3 of the DATEL
Panel Meter Catalog. Pin 10 should not be connected to pin 3
(5V RETURN/–BATTERY) or to your system's analog ground.
user-selectable, and the decimal point control pins (DP1-DP3) are
active low functions. Select the appropriate decimal point by tying
the appropriate pin (pin 4, 5 or 6) to pin 3 (5V RETURN/
–BATTERY). Unused decimal 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.
DMS-20LCD - 1 - 5
Input Range:
Accessories:
A panel-mount retaining clip is supplied with each model.
0 = ±200mV
1 = ±2V
2 = ±20V
3 = ±200V
DMS-20-CP
DMS-BZL3
DMS-BZL4
DMS-EB2
DMS-PS1-CM
Order on-line at www.datel.com
Panel cutout punch
DMS-20 bezel assembly
DMS-20 bezel assembly with sealing gasket
Application/evaluation board with standard
MOLEX connector, decimal point solder
pads and attenuation resistor pads.
+5V/1.0A AC/DC power supply module
Power Source:
5 = +5V
9 = +9V
Leave blank for standard
models.
Add B for backlit models.