AD546JN AD [Analog Devices], AD546JN Datasheet
AD546JN
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AD546JN Summary of contents
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FEATURES DC PERFORMANCE 1 mV max Input Offset Voltage Low Offset Drift max Input Bias Current Input Bias Current Guaranteed Over Full Common-Mode Voltage Range AC PERFORMANCE Slew Rate 1 MHz ...
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AD546–SPECIFICATIONS Model 1 INPUT BIAS CURRENT Either Input Either Input Either Input @ T MAX Either Input Offset Current Offset Current @ T MAX INPUT OFFSET Initial Offset Offset @ T MAX vs. Temperature vs. Supply vs. Supply Long-Term Stability ...
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... REV. A AD546J Conditions Min Typ G = –1 0 – 0.1% 4.5 to 0.01% 5 50% Overdrive Gain = – 0. Transistors 50 AD546JN = + and – –3– AD546K Max Min Typ Max Units 0.7 1.0 MHz 50 kHz 4 ...
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AD546–Typical Characteristics – SUPPLY VOLTAGE V Figure 1. Input Voltage Range vs. Supply Voltage 800 700 600 500 400 SUPPLY VOLTAGE V Figure 4. ...
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C 100 SUPPLY VOLTAGE VOLTS Figure 10. Input Bias Current vs. Supply Voltage 100 100 –20 –20 –40 –40 ...
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AD546 Figure 18. Unity Gain Follower Figure 21. Unity Gain Inverter MINIMIZING INPUT CURRENT The AD546 is guaranteed to have less than 1 pA max input bias current at room temperature. Careful attention to how the am- plifier is used ...
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Circuit Board Notes The AD546 is designed for through hole mount into PC boards. Maintaining picoampere level resolution in that environment re- quires a lot of care. Since both the printed circuit board and the amplifier’s package have a finite ...
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AD546 Leakage through the bulk of the circuit board will still occur with the guarding schemes shown in Figures 27a and 27b. Stan- dard “G10” type printed circuit board material may not have high enough volume resistivity to hold leakages ...
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How- ever, variation of the power supply voltages will cause offset shifts. Figure 30. Alternate Offset Null Circuit for Inverter AC RESPONSE WITH HIGH VALUE SOURCE AND FEEDBACK RESISTANCE Source and ...
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AD546 input current at either terminal stays below a few hundred femtoamps until one input terminal is forced higher than 1.5 V above the other terminal. Under these conditions, the input current limits INPUT ...
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Rigid Teflon coaxial cable is used to make connections to all high impedance nodes. The use of rigid coax affords immunity to error induced by mechanical vi- bration and provides an outer conductor for shielding. ...
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AD546 Figure 42. Photodiode Preamp Noise Sources’ Spectral Density vs. Frequency The photodiode preamp in Figure 39 can detect a signal current rms at a bandwidth of 16 Hz, which assuming a photo- diode responsivity of 0.5 ...