NTE995M 查看數據表（PDF） - NTE Electronics
零件编号
产品描述 (功能)
生产厂家
NTE995M Datasheet PDF : 4 Pages
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Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Supply Current (Zener Options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25mA
Collector Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Differential Input Voltage
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
OP Amp/Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Input Voltage Range
Tachometer
NTE995M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±28V
NTE955 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0V to +28V
OP Amp/Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0V to +28V
Power Dissipation (Note 1), PD
NTE995M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200mW
NTE995 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1580mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature, TL
NTE995, NTE995M (During Soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
NTE995M
(Vapor Phase, 60sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +215°C
(Infrared, 15sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
Note 1. For operation in ambient temperatures above 25°C, the device must be derated based on
a +150°C maximum junction temperature and a thermal resistance of +101°C/W junction to
ambient for the NTE995M, and +79°C/W junction to ambient for the NTE995.
Electrical Characteristics: (VCC = 12V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Tachometer
Input Thresholds
Hysteresis
Offset Voltage
NTE995
VIN = 250mVP–P @ 1kHz, Note 2 ±10 ±25
±40
mV
VIN = 250mVP–P @ 1kHz, Note 2
– 30
–
mV
VIN = 250mVP–P @ 1kHz, Note 2
– 3.5
10
mV
NTE995M
– 5.0
15
mV
Input Bias Current
Output Voltage (High Level, Pin2)
Output Voltage (Low Level, Pin2)
Output Current
Leakage Current
Gain Constant
VOH
VOL
I2, I3
I3
K
VIN = ±50mV
VIN = +125mV, Note 3
VIN = –125mV, Note 3
V2 = V3 = 6V, Note 4
I2 = 0, V3 = 0
Note 3
– 0.1
1.0
µA
– 8.3
–
V
– 2.3
–
V
140 180 240
µA
–
–
0.1
µA
0.9 1.0
1.1
Linearity
fIN = 1kHz, 5kHz, 10kHz, Note 5
–1.0 0.3
+1.0
%
Note 2. Hysteresis is the sum + VTH – (–VTH), offset voltage is their difference.
Note 3. VOH is equal to 3/4 x VCC – 1 VBE, VOL is equal to 1/4 x VCC – 1 VBE therefore VOH – VOL = VCC/2.
The difference, VOH – VOL, and the mirror gain, I2/I3, are two factors that cause the tachometer
gain constant to vary from 1.0.
Note 4. Be sure when choosing the time constant R1 x C1 that R1 is such that the maximum antici-
pated output voltage at Pin3 can be reached with I3 x R1. The maximum value for R1 is lim-
ited by the output resistance of Pin3 which is greater than 10MΩ typically.
Note 5. Nonlinearity is defined as the deviation of VOUT (@ Pin3) for fIN = 5kHz from a straight line
defined by the VOUT @ 1kHz and VOUT @ 10kHz. C1 = 1000pF, R1 = 68k and C2 = 0.22mFd.
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