AD630 Analog Devices, AD630 Datasheet
AD630
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AD630 Summary of contents
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... The 100 dB dynamic range of the AD630 exceeds that of any hybrid or IC balanced modulator/demodulator and is compa- rable to that of costly signal processing instruments. 4. The op-amp format of the AD630 ensures easy implementa- tion of high gain or complex switched feedback functions ...
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... Model AD630JN AD630KN AD630AD AD630BD AD630SD AD630SD/883B 5962-8980701RA –55°C to +125°C Side Brazed DIP D-20 θ θ AD630SE/883B 24°C/W 61°C/W 5962-89807012A –55°C to +125°C LCC 35°C/W 120°C/W AD630JCHIPS 35°C/W 120°C/W AD630SCHIPS AD630S Max Min Typ ...
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... CHIP METALIZATION AND PINOUT Dimensions shown in inches and (mm). Contact factory for latest dimensions CHIP AVAILABILITY The AD630 is available in laser trimmed, passivated chip form. The figure shows the AD630 metalization pattern, bonding pads and dimensions. AD630 chips are available; consult factory for details. ...
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... The 5k and the two 10k resistors on the AD630 chip can be used to make a gain of two as shown here. By paralleling the 10k resistors to make R can be programmed for a gain of ± 1 (as shown in Figure 18a). These and other configurations using the on chip resistors present the inverting inputs with a 2 ...
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... CIRCUIT DESCRIPTION The simplified schematic of the AD630 is shown in Figure 14. It has been subdivided into three major sections, the comparator, the two input stages and the output integrator. The comparator consists of a front end made up of Q52 and Q53, a flip-flop load formed by Q3 and Q4, and two current steering switching cells Q28, Q29 and Q30, Q31 ...
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... This condition provides the maximum bandwidth and slew-rate for closed-loop gains of |2| and above. When the AD630 is used as a multiplexer other configura- tions where one or both inputs are connected for unity gain feedback, the phase margin will be reduced to less than 20°. ...
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... When these input signals are 90° out of phase, they are said quadrature and the AD630 dc output will be zero. PRECISION RECTIFIER-ABSOLUTE VALUE If the input signal is used as its own reference in the balanced modulator topologies, the AD630 will act as a precision recti- fier ...
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... The schematic diagram of a demonstration circuit which exhibits the dynamic range of an AD630 as it might be used in a lock-in amplifier is shown in Figure 23. Figure oscillo- scope photo showing the recovery of a signal modulated at 400 Hz from a noise signal approximately 100,000 times larger ...