AD743JN Analog Devices Inc, AD743JN Datasheet
AD743JN
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AD743JN Summary of contents
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FEATURES Ultralow Noise Performance √ kHz 2.9 nV/ 0.38 V p-p, 0 √ Hz Current Noise at 1 kHz 6.9 fA/ Excellent DC Performance 0.5 mV Max Offset Voltage 250 pA Max Input ...
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AD743–SPECIFICATIONS Parameter 1 INPUT OFFSET VOLTAGE Initial Offset Initial Offset vs. Temperature vs. Supply (PSRR) vs. Supply (PSRR) 3 INPUT BIAS CURRENT Either Input Either Input @ T MAX Either Input = ± Either Input INPUT ...
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... Although the AD743 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV. E ORDERING GUIDE Model S AD743JN and –V AD743JR- AD743JR-16-REEL AD743JR-16-REEL7 *N = PDIP SOIC. ...
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AD743–Typical Performance Characteristics (@ 10k LOAD – SUPPLY VOLTAGE ( V) TPC 1. Input Voltage Swing vs. Supply Voltage ...
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PHASE GAIN –20 –20 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) TPC 10. Open-Loop Gain and Phase vs. Frequency 120 100 V = 10V CM 80 ...
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AD743 2.5 2.7 2.9 3.1 INPUT VOLTAGE NOISE (nV/ Hz) TPC 19. Typical Noise Distribution @ 10 kHz (602 Units 0 ...
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OP AMP PERFORMANCE: JFET VS. BIPOLAR The AD743 is the first monolithic JFET op amp to offer the low input voltage noise of an industry-standard bipolar op amp without its inherent input current errors. This is demonstrated in Figure 2, ...
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AD743 Figures 4 and 5 show two ways to buffer and amplify the output of a charge output transducer. Both require using an amplifier that has a very high input impedance, such as the AD743. Figure 4 shows a model ...
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HOW CHIP PACKAGE TYPE AND POWER DISSIPATION AFFECT INPUT BIAS CURRENT As with all JFET input amplifiers, the input bias current of the AD743 is a direct function of device junction temperature, I approximately doubling every 10°C. Figure 8 shows ...
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AD743 AN INPUT IMPEDANCE COMPENSATED, SALLEN-KEY FILTER The simple high-pass filter of Figure 13 has an important source of error which is often overlooked. Even input capacitance in amplifier A will contribute an additional 1% of pass-band ...
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R2 1900 R3 100 C1* R4 AD743 B AND K TYPE 8100 HYDROPHONE INPUT SENSITIVITY = –179 dB re. 1V/ Pa** *OPTIONAL, SEE TEXT **1V PER MICROPASCAL Figure 15b. AC-Coupled, Low Noise Hydrophone ...
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AD743 8-Lead Plastic Dual In-Line Package [PDIP] (N-8) Dimensions shown in inches and (millimeters) 0.375 (9.53) 0.365 (9.27) 0.355 (9.02 0.295 (7.49) 0.285 (7.24) 0.275 (6.98 0.100 (2.54) BSC 0.015 0.180 (0.38) (4.57) MIN MAX 0.150 ...