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PDF ES51986 Data sheet ( Hoja de datos )
| Número de pieza | ES51986 | |
| Descripción | 6000 Count AUTO DMM | |
| Fabricantes | CYRUSTEK | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ES51986 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
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ES51986
6000 Count AUTO DMM
.
Features
• 6000 count display
• Full automatic measurement
*Voltage measurement
*Current measurement
*Resistor measurement
• Capacitor measurement (Auto range: 6n
to 6mF)
• 60MHz Frequency counter
• Range change function
• Data hold function
• MAX/MIN function
• Diode measurement
• ADP mode with external reference
voltage
• Serial data output (RS232 format)
• Auto power off (10 mins) and re-power
on
• Low battery detect (3V and 9V)
• 3V DC power supply
• Back light function
Description
ES51986 is an integrated analog-to-digital
Converter(ADC) with 6000 counts LCD
display ,automatic range selection, and 3V
DC power supply. Automatic range
selection is provided for voltage(AC/DC)
measurement, resistor measurement,
current
measurement,
capacitor
measurement, frequency counter.
Expensive and bulky mechanical range
switches are not required. Other features
include data holding, MAX and MIN
holding, diode measurement, temperature
measurement, continuity checking, low
battery detection, auto- power off, re-
power on, and RS232 data output.
Application
Digital Multimeter
TAIWAN PATENT NO. 453443
1
03/10/09
1 page  
Absolute Maximum Ratings
ES51986
6000 Count AUTO DMM
Characteristic
Supply Voltage (V- to AGND)
Analog Input Voltage
V+
AGND/DGND
Digital Input
Power Dissipation. Flat Package
Operating Temperature
Storage Temperature
Rating
-4V
V- -0.6 to V+ +0.6
V+ ≥ (AGND/DGND+0.5V)
AGND/DGND ≥ (V- -0.5V)
V- -0.6 to DGND +0.6
500mW
0℃ to 70℃
-25℃ to 125℃
Electrical Characteristics
Parameter
Power supply
Operating supply current
In DCV mode
Voltage roll-over error
Symbol
V-
IDD
ISS
REV
Test Condition
Normal operation
In sleep mode
10MΩ input resistor
Min.
-3.5
—
—
—
TA=25℃, V- = -3V
Typ. Max Units
-3.0 -2.2 V
0.9 1.4 mA
2.5 5 µA
— ±0.1 %F.S
Voltage nonlinearity
NLV
Best case straight
line
—
— ±0.1 %F.S
Input Leakage
-10 1 10 PA
Low battery flag voltage
V- to AGND
-2.5 -2.3 -2.1 V
Zero input reading
10MΩ input resistor -000
000 +000 counts
Reference voltage and open circuit
100KΩ resistor
voltage for 600Ω measurement
VREF between VRH and
AGND
-1.3
-1.2 -1.1 V
Peak to peak backplane
drive voltage
-3.5V≤ V ≤-2.2V
2.90
3.1
3.3
V
Counter time base period
fOSC = 4MHZ
— 1 — sec
Open circuit voltage for Ω
measurement (except 600Ω)
Ω and Continuity
Mode
-0.54
-0.47
-0.4
V
Between V- pin and
HOLD, RANGE,
Internal pull-high to 0V
current
KEY, FC1, FC2,
FC3, FC4, FC5,
XTAL,
—
1.2 —
µA
BKLIT,MAXMIN
Between V- pin
and RS232
— 11 —
Internal pull-low to V-
current
Between GND Pin
and SLACDC
1.5
µA
AC frequency response at 6V range
6.000V range
±1%
±5%
— 40-400 —
— 40-2000 —
HZ
5 03/10/09
5 Page 
ES51986
6000 Count AUTO DMM
The other combinations of FC1, FC2, FC3, and FC4 are for ADP modes. In ADP modes
, if FC5 is LOW, the minus sign on the LCD panel will not be displayed. And if KEY pin
is floating, the buzzer beeps when the input signal is overflow. The ADP mode function
is summarized below.
FC1 FC2 FC3 FC4
Mode
1110
ADP0
1100
ADP1
1000
ADP2
1010
ADP3
Note: Temperature measurement mode takes input signal from ADP pin. In temperature
measurement mode, VBAR pin is used to control the right most digit point on the
LCD panel. When VBAR is LOW, this digit point is displayed.
3. Push function
3.1 HOLD
HOLD mode makes the meter stop updating the LCD panel. This mode can be nested in
most of the special modes. Enabling HOLD function in automatic mode makes the
meter switch to manual mode, but the full scale range remains the same. HOLD function
can be cancelled by changing the measurement mode, pressing RANGE, or push HOLD
again.
3.2 Range
RANGE pin switches to and from automatic and manual mode, and while in manual
mode, changes the full scale range. The following figure shows the state transition.
Automatic
Mode
1 push < 1 sec
1 push > 1 sec
Manual
Mode
Range up
1 push < 1 sec
11 03/10/09
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet ES51986.PDF ] | |
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