Absolute Maximum Ratings:
Power Dissipation (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1365mW
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Voltage on Output Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Input Signal Overvoltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35V
Divider Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –100mV to V+
Reference Load Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Lead Temperature (During soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Note 1. The maximum junction temperature of the NTE1509 is +100°C. Device must be derated for
operation at elevated temperatures. Junction to ambient thermal resistance is 55°C/W.
Note 2. Pin5 input current must be limited to ±3mA. The addition of a 39kΩ resistor in series with
Pin5 allows ±100V signals without damage.
Electrical Characteristics:
Parameter
(Note 2, unless otherwise specified, all specifications apply with the
following conditions:
3VDC ≤ V+ ≤ 20VDC
3VDC ≤ VLED ≤ V+
–0.015V ≤ VRLO ≤ 12VDC
–0.015V ≤ VRHI ≤ 12VDC
VREF, VRHI, VRLO ≤ (V+ –1.5V)
0V ≤ VIN ≤ V+ –1.5V
TA +25°C, IL(REF) = 0.2mA,
Pin9 connected to Pin3 (Bar Mode)
Test Conditions
Min Typ Max Unit
Comparator
Offset Voltage, Buffer, and First Comparator
Offset Voltage, Buffer, and Any Other
Comparator
0V ≤ VRLO = VRHI ≤ 12V, ILED = 1mA
0V ≤ VRLO = VRHI ≤ 12V, ILED = 1mA
–
3 10
mV
–
3 15
mV
Gain (∆ILED/∆VIN)
Input Bias Current (At Pin5)
IL(REF) = 2mA, ILED = 10mA
0V ≤ VIN ≤ V+ =1.5V
38
– mA/mV
– 25 100 nA
Input Signal Overdrive
No Change is Display
–35 – +35
V
Voltage Divider
Divider Resistance
Total, Pin6 to Pin4
16 28 36
kΩ
Relative Accuracy (Input Change Between
Any Two Threshold Points)
Note 3
2.0 3.0 4.0 dB
Absolute Accuracy at Each Threshold Point VIN = –3, –6dB, Note 3
–0.5 – +0.5 dB
VIN = –9dB, Note 3
–0.5 – +0.65 dB
VIN = –12, –15, –18dB, Note 3
–0.5 – +1.0 dB
Voltage Reference
VIN = –21, –24, –27dB, Note 3
–0.5 – +1.5 dB
Output Voltage
Line Regulation
0.1mA ≤ IL(REF) ≤ 4mA, V+ = VLED = 5V 1.2 1.28 1.34
V
3V ≤ V+ ≤ 18V
– 0.01 0.03 %/V
Load Regulation
Output Voltage Change with Temperature
Adjust Pin Current
0.1mA ≤ IL(REF) ≤ 4mA, V+ = VLED = 5V – 0.4 2.0
%
0° ≤ TA ≤ +70°C, IL(REF) = 1mA, V+ = 5V –
1
–
%
– 75 120 µA
Note 2. Pin5 input current must be limited to ±3mA. The addition of a 39kΩ resistor in series with
Pin5 allows ±100V signals without damage.
Note 3. Accuracy is measured referred to +10.000VDC at Pin5, with + 10.000VDC at Pin6, and
0.000VDC at Pin4. At lower full–scale voltages, buffer and comparator offset voltage may
add significant error. See table for threshold voltages.