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NTE869 Integrated Circuit Dual, High Speed, Programmable Current Mode (Norton) Amp
Description: The NTE869 consists of two current differencing (Norton) input amplifiers. Emphasis has been placed on obtaining high frequency performance and providing user programmable amplifier operating characteristics. Each amplifier is broadbanded to provide a high gain bandwidth product, fast slew rate and stable operation for an Inverting closed loop gain of 10 or greater. Pins for additional external frequency compensation are provided. The amplifiers are designed to operate from a single supply and can accommodate input common-mode voltages greater than the supply. Applications: D General Purpose Video Amplifiers D High Frequency, High Q Active Filters D Photo-Diode Amplifiers D Wide Frequency Range Waveform Generation Circuits D AC Applications Work to much Higher Frequencies Features: D User programmable gain bandwidth product, slew rate, input bias current, output stage biasing current and total device power dissipation. D High gain bandwidth product (ISET = 0.5mA) 400MHZ for AV = 10 to 100 30MHZ for AV = 1 D Current differencing inputs allow high common-mode input voltages D Operates from a single 5V to 22V supply D Large inverting amplifier output swing, 2mV to VCC -2V D Low spot noise, 6nV/Hz, for f > 1kHZ Absolute Maximum Ratings: Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22V Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW Input Currents, IIN(+) or IIN(-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Set Currents, ISET(IN) or ISET(OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 70C Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160C/W Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C
Electrical Characteristics: (ISET(IN) = ISET(OUT) = 0.5mA, Vsupply = 12V, TA = +25C unless otherwise noted.)
Parameter Open Loop Voltage Gain Bandwidth Unity Gain Gain Bandwidth Product Gain of 10 to 100 Slew Rate Unity Gain Gain of 10 to 100 Amplifier to Amplifier Coupling Mirror Gain (Note 1) Test Conditions Vsupply = 12V, RL = 1k, f = 100Hz TA = 125C RIN = 1k, Ccomp = 10pF RIN 50 to 200 Min 62 - 15 200 Typ 72 68 30 400 Max - - - - Unit dB MHZ MHZ V/s RIN = 1k, Ccomp = 10pF RIN < 200 f = 100HZ to 100kHZ, RL = 1k @ 2mA IIN(+), ISET = 5A, TA = 25C @ 0.2mA IIN(+), ISET=5A Over Temp @ 20A IIN(+), ISET = 5A Over Temp @ 20A to 0.2mA IIN(+) Over Temp, ISET = 5A Inverting Input, TA = 25C Over Temp Inverting Input IOUT = 15mA rms, f = 1MHz RL = 600 IIN(-) & IIN(+) Grounded IIN(-) = 100A, IIN(+) = 0 IIN(-) & IIN(+) Grounded, RL = 100 Vcomp =0.5V = VOUT = 1V, IIN(+) = 0 IIN(-) = 100A, IIN(+) = 0, VOUT Force = 1V Non-Inverting Input Grounded, RL= f = 120HZ, IIN(+) Grounded - - - 0.9 0.9 0.9 - - - - 9.5 - 16 - 1.5 - 40 30 60 -80 1.0 1.0 1.0 3 8 2.5 3.5 10.3 2.0 40 4.7 3.0 18.5 50 - - - 1.1 1.1 1.1 5 15 - - - 50 - - - 22 - dB A/A
Mirror Gain (Note 1) Input Bias Current Input Resistance (re) Output Resistance Output Voltage Swing VOUT High VOUT Low Output Currents Source Sink (Linear Region) Sink (Overdriven) Supply Current Power Supply Rejection
% A k V mV mA
mA dB
Note 1. Mirror gain is the current gain of the current mirror which is used as the non-inverting input.
AI = IIN (-) IIN (+) Mirror
Pin Connection Diagram
ISET (Out) 1 VOut A 2 Comp A 3 GND A 4 N.C. 5 IIn (-) A 6 IIn (+) A 7
14 VOut B 13 Comp B 12 V + 11 GND B 10 IIn (-) B 9 IIn (+) B 8 ISET (In)
14
8
1
7
.785 (19.95) Max .200 (5.08) Max
.300 (7.62)
.100 (2.45) .600 (15.24)
.099 (2.5) Min

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