MC34940 Freescale Semiconductor, MC34940 Datasheet - Page 3

• Manufacturer Part Number: MC34940
• Description: Electric Field Imaging Device
• Manufacturer: Freescale Semiconductor

Notes
Sensors
Freescale Semiconductor
Table 2. STATIC ELECTRICAL CHARACTERISTICS
values noted reflect the approximate parameter means at T
SUPPLY (V
ELECTRODE SIGNALS (E1–E7)
LOGIC I/O (C, B, A)
SIGNAL DETECTOR (LPCAP)
Supply Voltage
I
(Quiescent supply current measured over temperature. Assumes
that no external devices connected to internal voltage regulators)
Total Variance Between Electrode Measurements
Electrode Maximum Harmonic Level Below Fundamental
Electrode Transmit Output Range
5.0 pF ≤ C
Receive Input Voltage Range
Grounding Switch on Voltage
CMOS Logic Input Low Threshold
Logic Input High Threshold
Voltage Hysteresis
Input Current
Detector Output Resistance
LPCAP to LEVEL Gain
LPCAP to LEVEL Offset
DD
1.
2.
3.
4.
5.
6.
Characteristics noted under conditions 5.5 V ≤ V
All C
5.0 pF ≤ C
I
V
V
(V
SW
IN
IN
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.
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.
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.
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
Verified by design and characterization. Not tested in production.
Current into grounded terminal under test = 1.0 mA.
PWR
= V
= 0 V
= 1.0 mA
LOAD
LOAD
CC
PWR
= 14V)
LOAD
= 15 pF
)
≤ 150 pF
≤ 150 pF
Characteristic
(6)
(5)
SUP
(5)
≤ 18 V, 0°C ≤ T
A
= 25°C under nominal conditions unless otherwise noted.
V
Symbol
ELV
EL
SW
DET
EL
RECOFF
V
V
A
V
V
RX
I
HARM
THH
HYS
I
REC
PWR
DD
THL
TXV
IN
VON
VAR
RO
V
A
≤ 90°C, GND = 0 V unless otherwise noted. Typical
Min
-5.0
-3.3
9.0
6.0
1.0
0.3
10
3.6
–
–
0
–
–
–
–
0.06
Typ
-3.0
7.0
-20
4.0
12
50
–
–
–
–
–
–
–
–
Max
-2.7
8.0
3.0
8.0
9.0
5.0
5.0
4.4
18
50
0.7
–
–
–
–
MC34940
Unit
V
V
V
mA
µA
dB
A
kΩ
%
V
V
V
V
V
CC
CC
CC
V
3