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NTE944 & NTE944M Integrated Circuit Programmable Operational Amplifier
Description: The NTE944 (8-Lead Metal Can) and NTE944M (8-Lead MiniDIP) are extremely versatile programmable monolithic operational amplifiers. A single external master bias current setting resistor programs the input bias current, input offset current, quiescent power consumption, slew rate, input noise, and the gain-bandwidth product. These devices are truly general purpose operational amplifiers. Features: D 1V to 18V power supply operation D 3nA input offset current D Standby power consumption as low as 500mW D No frequency compensation required D Programmable electrical characteristics D Offset voltage nulling capability D Can be powered by two flashlight batteries D Short circuit protection Absolute Maximum Ratings: Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Power Dissipation (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Input Voltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V ISET Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150A Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 TA +70C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lead Temperature (Soldering, 10sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C Note 1. The maximum junction temperature of the NTE944 is 100C. For operating at elevated temperatures, the NTE944 must be derated based on a thermal resistance of 150C/W junction to ambient, or 45C/W junction to case. The thermal resistance of the NTE944M is +125C/W. Note 2. For supply voltages less than 15V, the absolute maximum input voltage is equal to the supply voltage.
Electrical Characteristics: (0 TA +70C, unless otherwise specified)
Parameter VOS Test Conditions VS = 1.5V TA = +25C, RS 100k VS = 15V VS = 1.5V RS 10k VS = 15V IOS VS = 1.5V TA = +25C VS = 15V VS = 1.5V VS = 15V Ibias VS = 1.5V TA = +25C VS = 15V VS = 1.5V VS = 15V Large Signal Voltage Gain VS = 1.5V TA = +25C, RL 100k VO = 0.6V, RL 10k VS = 15V TA = +25C, RL 100k VO = 10V, RL 10k VS = 1.5V VO = 0.5V, RL = 100k RL = 10k VS = 15V Supply Current VO = 10V, RL = 100k RL = 10k VS = 1.5V TA = +25C VS = 15V VS = 1.5V VS = 15V Power Consumption VS = 1.5V TA = +25C VS = 15V VS = 1.5V VS = 15V Output Voltage Swing VS = 1.5V RL = 100k RL = 10k VS = 15V RL = 100k RL = 10k Common Mode Rejection Ratio VS = 1.5V RS 10k VS = 15V Supply Voltage Rejection Ratio VS = 1.5V RS 10k VS = 15V ISET = 1A Min - - - - - - - - - - - - 25k - 60k - 25k - 50k - - - - - - - - - 0.6 - 12 - 70 70 74 74 Max 5 5 6.5 6.5 6 6 8 8 10 10 10 10 - - - - - - - - 8 11 8 11 24 330 24 330 - - - - - - - - ISET = 10A Min - - - - - - - - - - - - - 25k - 60k - 25k - 50k - - - - - - - - - 0.6 - 12 70 70 74 74 Max 6 6 7.5 7.5 20 20 25 25 75 75 80 80 - - - - - - - - 90 100 90 100 270 3k 270 3k - - - - - - - - A A A A W W W W V V V V dB dB dB dB Unit mV mV mV mV nA nA nA nA nA nA nA nA
Resistor Biasing: (Set Current Setting Resistor to V-)
ISET
VS 1.5V 3.0V 6.0V 9.0V 12.0V 15.0V
0.1A 25.6M 55.6M 116.0M 176.0M 236.0M 296.0M
0.5A 5.04M 11.0M 23.0M 35.0M 47.0M 59.0M
1.0A 2.5M 5.5M 11.5M 17.5M 23.5M 29.5M
5A 492.0k 1.09M 2.29M 3.49M 4.69M 5.89M
10A 244.0k 544.0k 1.14M 1.74M 2.34M 2.94M
Pin Connection Diagram NTE944 (Top View) Offset Null 5 Output 6 4 V (-)
V (+)
7
3 Non-Inverting Input
Quiescent Current Set
8 1
2 Offset Null
Inverting Input
Pin Connection Diagram NTE944M
Offset Null Inverting Input Non-Inverting Input V-
1 2 3 4
8 7 6 5
Quiescent Current Set V+ Output Offset Null
Dimensional Drawing NTE944
.370 (9.39) Dia Max .335 (8.52) Dia Max .177 (4.5) Max
.492 (12.5) Min
.018 (0.45) Dia Typ
2 1 45 8 7
3 4 5 6 .200 (5.06) Dia
.032 (0.82)
Dimensional Drawing NTE944M
8
5
.260 (6.6)
1
4
.390 (9.9) Max .155 (3.93)
.300 (7.62)
.100 (2.54) .300 (7.62)
.145 (3.68)

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