AD9660KR Analog Devices Inc, AD9660KR Datasheet
AD9660KR
Specifications of AD9660KR
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AD9660KR Summary of contents
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FEATURES 1.5 ns Rise/2.0 ns Fall Times Output Current: 180 200 mA @ 2.5 V Bias Current Modulation Current Offset Current ...
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... WRITE PULSE, WRITE CAL, BIAS CAL, OFFSET PULSE are TTL compatible inputs. Specifications subject to change without notice. (+ Temperature = +25 C unless otherwise noted. Sourced currents defined S as positive.) Test AD9660KR Level Temp Min Typ Max IV Full V ...
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... V Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mA REF WRITE LEVEL, BIAS LEVEL . . . . . . . . . . . . . –0 TTL INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . –0 Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA Operating Temperature AD9660KR . . . . . . . . . . . . . . . . . . . . . . . . . . +70 C Storage Temperature . . . . . . . . . . . . . . . . . . – +150 C 2 Maximum Junction Temperature . . . . . . . . . . . . . . . . +150 C Lead Soldering Temp (10 sec +300 C 1 Absolute maximum ratings are limiting values applied individually, and beyond which the serviceability of the circuit may be impaired ...
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AD9660 Pin Function OUTPUT Analog laser diode current output. Connect to anode of laser diode, cathode connected to GROUND externally. BIAS LEVEL Analog voltage input, V tion as follows: BIAS CAL TTL/CMOS compatible, Bias loop T/H control signal. Logic HIGH ...
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ML64116R OUTPUT 50 AD9660 –120V ANTEL ARS1 PHOTO DETECTOR Figure 1. Driving ML64116R Laser @ 30 mW THEORY OF OPERATION The AD9660 combines a very fast output current switch with onboard analog light power control loops to ...
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AD9660 POWER-UP DISABLE OR LASER NOT IN USE BIAS CAL WRITE CAL WRITE PULSE CALIBRATED WRITE LASER OUTPUT POWER CALIBRATED BIAS The disable circuit turns off I and returns the hold capacitor OUT voltages to their minimum levels (minimum output ...
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Minimum specifications for I MONITOR MAX choosing R . Users are cautioned that laser diode/photo di- GAIN ode combinations that produce monitor currents that are less than I in the equation above will produce higher la- MONITOR MAX ser output ...
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AD9660 Using this model, the voltage at the hold capacitor HOLD where t is when the calibration begins (WRITE CAL or BIAS 0 CAL goes logic HIGH ...
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Example Calculations The example below (in addition to the one included in the sec- tions above) should guide users in choosing R hold capacitor values, and worst case calibration times. System Requirements: Bias laser power Bias 5% Write ...
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AD9660 Offset Current Generator The offset current source allows the user to inject a fixed, uncalibrated current into the laser diode. The offset current source is set by an external resistor connected between OFF- SET CURRENT SET and +V , ...
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The trace from the output pins of the AD9660 to the anode of the laser (send trace) should be several millimeters wide and should be as direct as possible. The return current will choose the path of least resistance. If ...
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AD9660 28 0.300 (7.60) 0.292 (7.40) 1 PIN 1 0.012 (0.30) 0.004 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 28-Pin Plastic SOIC (R-28) 0.712 (18.08) 0.700 (17.78) 15 0.419 (10.64) 0.393 (9.98) 14 0.104 (2.64) 0.093 (2.36) 0.0500 ...