NTE1670
Integrated Circuit
Air Core Meter Driver
Description:
The NTE1670 is a function generator/driver for air鈥揷ore (moving鈥搈agnet) meter movements in a
14鈥揕ead DIP type package. A Norton amplifier and an NPN transistor are included on chip for signal
conditioning as required. Driver outputs are self鈥揷entering and develop
鹵
4.5V swing at 20mA. Better
than 2% linearity is guaranteed over a full 305鈥揹egree operating range.
Features:
D
Self鈥揅entering 20mA Outputs
D
12V Operation
D
Norton Amplifier
D
Function Generator
Applications:
D
Air鈥揅ore Meter Driver
D
Tachometers
D
Ruggedized Instruments
Absolute Maximum Ratings:
Supply Voltage (Pin13), V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Power Dissipation (Note 1), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1300mW
Collector鈥揈mitter Breakdown Voltage, V
(BR)CEO
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
MIN
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄C to +85擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄C to 鈥?50擄C
Lead Temperature (During soldering, 10sec Max), T
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260擄C
Note 1 For operation above +25擄C, the NTE1670 must be derated based upon a +125擄C maximum
junction temperature and a thermal resistance of +76擄C/W which applies for the device sol-
dered in a printed circuit board and operating in a still鈥揳ir ambient.
Electrical Characteristics:
(V
CC
= 13.1V T
A
= +25擄C unless otherwise specified)
Parameter
Supply Current (Pin13)
Regulator Voltage (Pin11)
Regulator Output Resistance (Pin11)
Symbol
I
S
V
REG
Test Conditions
Zero Input Frequency
I
REG
= 0mA
I
REG
= 0mA to 3mA
Min
鈥?/div>
8.1
鈥?/div>
Typ
鈥?/div>
8.5
13.5
Max
65
8.9
鈥?/div>
Unit
mA
V
鈩?/div>
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