Datasheet AD625 (Analog Devices) - 6

AD625 40 30 +VS 20 nA – 10 VOUT 0 10V AD625 –10 INPUT CURRENT –20 –30 –VS –40 –125 –75 –25 25 75 125 TEMPERATURE – C
Figure 10. Input Bias Current vs. Figure 11. Overrange and Gain Figure 12. Gain Overrange Recovery Temperature Switching Test Circuit (G = 8, G = 1)
8.0 100k A – fA/ Hz – 1000 6.0 10k 100 G = 1 nV/ Hz – 4.0 G = 10 1k 10 G = 100, 1000 VOLT NSD 2.0 G = 1000 100 1 AMPLIFIER QUIESCENT CURRENT 0 0.1 10 0 5 10 15 20 1 10 100 1k 10k 100k CURRENT NOISE SPECTRAL DENSITY 1 10 100 1k 10k 100k SUPPLY VOLTAGE – V FREQUENCY – Hz FREQUENCY – Hz
Figure 13. Quiescent Current vs. Figure 14. RTI Noise Spectral Figure 15. Input Current Noise Supply Voltage Density vs. Gain
+VS –VS AD625 DUT 16.2k +VS 1 F 1 F AD712 1/2 1/2 AD712 16.2k 9.09k 1 F –VS G = 1, 10, 100 G = 1000 1.62M 100 1k 1.82k
Figure 16. Low Frequency Voltage Figure 17. Noise Test Circuit Figure 18. Low Frequency Voltage Noise, G = 1 (System Gain = 1000) Noise, G = 1000 (System Gain = 100,000) –6– REV. D