NTE1670

Integrated Circuit

Air Core Meter Driver

Description:

The NTE1670 is a function generator/driver for air–core (moving–magnet) meter movements in a

14–Lead DIP type package. A Norton amplifier and an NPN transistor are included on chip for signal

conditioning as required. Driver outputs are self–centering and develop

± 4.5V swing at 20mA. Better

than 2% linearity is guaranteed over a full 305–degree operating range.

Features:

D Self–Centering 20mA Outputs

D 12V Operation

D Norton Amplifier

D Function Generator

Applications:

D Air–Core Meter Driver

D Tachometers

D Ruggedized Instruments

Absolute Maximum Ratings:

20V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1300mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40

°C to +85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to –150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Note 1 For operation above +25

°C, the NTE1670 must be derated based upon a +125°C maximum

junction temperature and a thermal resistance of +76

°C/W which applies for the device sol-

dered in a printed circuit board and operating in a still–air ambient.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Supply Current (Pin13)

Zero Input Frequency

–

–

65

mA

Regulator Voltage (Pin11)

8.1

8.5

8.9

V

Regulator Output Resistance (Pin11)

–

13.5

–

Ω