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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to 70°C Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160°C/W Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Electrical Characteristics: (ISET(IN) = ISET(OUT) = 0.5mA, Vsupply = 12V, TA = +25°C unless otherwise noted.) Parameter Test Conditions Min Typ Max Unit Open Loop Voltage Gain Vsupply = 12V, RL = 1k, f = 100Hz TA = 125°C 62 – 72 68 – – dB Bandwidth Unity Gain RIN = 1kΩ, Ccomp = 10pF 15 30 – MHZ Gain Bandwidth Product Gain of 10 to 100 RIN 50Ω to 200Ω 200 400 – MHZ Slew Rate Unity Gain Gain of 10 to 100 V/µs RIN = 1kΩ, Ccomp = 10pF RIN < 200Ω – – 30 60 – – Amplifier to Amplifier Coupling f = 100HZ to 100kHZ, RL = 1k – –80 – dB Mirror Gain (Note 1) @ 2mA IIN(+), ISET = 5µA, TA = 25°C @ 0.2mA IIN(+), ISET=5µA Over Temp @ 20µA IIN(+), ISET = 5µA Over Temp 0.9 0.9 0.9 1.0 1.0 1.0 1.1 1.1 1.1 µA/µA Mirror Gain (Note 1) @ 20µA to 0.2mA IIN(+) Over Temp, ISET = 5µA – 3 5 % Input Bias Current Inverting Input, TA = 25°C Over Temp – 8 15 µA Input Resistance (βre) Inverting Input – 2.5 – kΩ Output Resistance IOUT = 15mA rms, f = 1MHz – 3.5 – Ω Output Voltage Swing VOUT High VOUT Low RL = 600Ω IIN(–) & IIN(+) Grounded IIN(–) = 100µA, IIN(+) = 0 9.5 – 10.3 2.0 – 50 V mV Output Currents Source Sink (Linear Region) Sink (Overdriven) IIN(–) & IIN(+) Grounded, RL = 100Ω Vcomp =0.5V = VOUT = 1V, IIN(+) = 0 IIN(–) = 100µA, IIN(+) = 0, VOUT Force = 1V 16 – 1.5 40 4.7 3.0 – – – mA Supply Current Non–Inverting Input Grounded, RL=∞ – 18.5 22 mA Power Supply Rejection f = 120HZ, IIN(+) Grounded 40 50 – 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 14 VOut B 13 Comp B VOut A 2 Comp A 3 12 V + GND A 4 11 GND B N.C. 5 10 IIn (–) B IIn (–) A 6 9 IIn (+) B IIn (+) A 7 8 ISET (In) 14 8 1 7 .785 (19.95) Max .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min