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NTE1507 Datasheet(PDF) 1 Page - NTE Electronics

Part No. NTE1507
Description  Integrated Circuit 10-Step Adjustable Analog Level Detector
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Maker  NTE [NTE Electronics]
Homepage  http://www.nteinc.com
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NTE1507
Integrated Circuit
10–Step Adjustable Analog Level Detector
Description:
The NTE1507 is an integrated circuit in a 16–Lead DIP type package consisting of ten comparators
and a reference voltage network to detect the level of a signal at the analog input. Output Q1 is
switched to a low logic level at a typical input voltage of 200mV with Threshold Adjust open and the
cascade input grounded. After each 200mV increment, the next output is switched to a low logic level.
All outputs are at low logic levels at a typical input voltage of 2000mV. The threshold–adjust pin allows
the user to decrease the input voltage steps from 200mV to 100mV increments by connecting an ex-
ternal resistor from Threshold Adjust to GND.
This level detector is directly cascadable requiring only two external resistors to establish a zero–ref-
erence level voltage for the cascade input. The maximum number of devices that can be cascaded
is determined by the threshold level and the maximum input voltages. If the cascade feature is not
utilized, the cascade input must be grounded for proper operation.
The NTE1507 is especially designed to detect and indicate analog signal levels and may be used in
various industrial, consumer, or automotive applications such as low–precision meters, warning–sig-
nal indicators, A/D converters, feedback regulators, pulse shapers, delay elements, and for automatic
range switching. The open–emitter outputs are capable of sourcing currents up to 25mA and may
be operated at voltages up to 35V. The power outputs are suitable for driving a variety of display ele-
ments such as vacuum flourescent displays, LED’s, or filament lamps. The outputs may also drive
digital integrated logic such as CMOS or other high–level logic.
Features:
D 10 Comparators to Digitize Analog Input Signals
D Cascade Feature Allows Stacking Output Display Strings
D Threshold Intervals Adjustable from 200mV to 100mV
D Open–Emitter Outputs Capable of Sourcing up to 25mA and Withstanding up to 35V
D Supply Voltage Range of 10V to 35V (VCC2)
Absolute Maximum Ratings: (TA = 0° to +70°C unless otherwise specified)
Supply Voltage
VCC1 (Note 1)
20V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VCC2
40V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage
Analog Input
8V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cascade Input
8V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage Range
0V to VCC2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On–State Output Current (Each Output)
–30mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Total Dissipation (TA ≤ +25°C)
2075mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Linearly Above 25
°C
16.6mW/
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, TA
0
° to +70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg
–65
° to +150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 1/16” (1.6mm) from case, 10sec), TL
+260
°C
. . . . . . . . . . . . .
Note 1. Voltage values are with respect to network ground terminal.




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