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MC34940 Scheda tecnica(PDF) 3 Page - Freescale Semiconductor, Inc

Il numero della parte MC34940
Spiegazioni elettronici  Electric Field Imaging Device
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC34940 Scheda tecnica(HTML) 3 Page - Freescale Semiconductor, Inc

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MC34940
Sensors
Freescale Semiconductor
3
Notes
1.
Junction temperature is a function of on-chip power dissipation, package thermal resistance, mounting site (board) temperature, ambient
temperature, air flow, power dissipation of other components on the board, and board thermal resistance. In accordance with SEMI G38-
87 and JEDEC JESD51-2 with the single layer board horizontal.
2.
Indicates the average thermal resistance between the die and the case top surface as measured by the cold plate method (MILSPEC 883
Method 1012.1) with the cold plate temperature used for the case temperature.
3.
Thermal resistance between the die and the printed circuit board per JEDEC JESD51-8. Board temperature is measured on the top
surface of the board near the package.
4.
Terminal soldering temperature limit is for 10 seconds maximum duration. The device is not designed for immersion soldering. Exceeding
these limits may cause malfunction or permanent damage to the device
5.
Verified by design and characterization. Not tested in production.
6.
Current into grounded terminal under test = 1.0 mA.
Table 2. STATIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions 5.5 V
≤ VSUP ≤ 18 V, 0°C ≤ TA ≤ 90°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
SUPPLY (VPWR)
Supply Voltage
VPWR
9.0
12
18
V
IDD (VPWR = 14V)
(Quiescent supply current measured over temperature. Assumes
that no external devices connected to internal voltage regulators)
IDD
6.0
7.0
8.0
mA
ELECTRODE SIGNALS (E1–E7)
Total Variance Between Electrode Measurements (5)
All CLOAD = 15 pF
ELVVAR
3.0
%
Electrode Maximum Harmonic Level Below Fundamental (5)
5.0 pF
≤ CLOAD ≤ 150 pF
ELHARM
-20
dB
Electrode Transmit Output Range
5.0 pF
≤ CLOAD ≤ 150 pF
ELTXV
1.0
8.0
V
Receive Input Voltage Range
RXV
0
9.0
V
Grounding Switch on Voltage(6)
ISW = 1.0 mA
SWVON
5.0
V
LOGIC I/O (C, B, A)
CMOS Logic Input Low Threshold
VTHL
0.3
VCC
Logic Input High Threshold
VTHH
0.7
VCC
Voltage Hysteresis
VHYS
0.06
VCC
Input Current
VIN = VCC
VIN = 0 V
IIN
10
-5.0
50
5.0
µA
SIGNAL DETECTOR (LPCAP)
Detector Output Resistance
DETRO
50
k
LPCAP to LEVEL Gain
AREC
3.6
4.0
4.4
AV
LPCAP to LEVEL Offset
VRECOFF
-3.3
-3.0
-2.7
V


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