AD827JN DATASHEET PDF

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Like the AD, it provides high speed, low power performance at low cost. Commonmode rejection ratio is a minimum of 80 dB. Power supply rejection ratio is maintained at better than 20 dB with input frequencies as high as 1 MHz, thus minimizing noise feedthrough from switching power supplies. The AD is also ideal for use in demanding video applications, driving coaxial cables with less than 0. The AD is also useful in multichannel, high speed data conversion systems where its fast ns to 0.

C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P. Box , Norwood, MA , U. All other specifications are measured using high speed test equipment, approximately 1 second after power is applied.

All min and max specifications are guaranteed. Specifications subject to change without notice. This is a stress rating only, and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum ratings for extended periods may affect device reliability.

Dimensions shown in inches and mm. InputCommon-Mode Range vs. Supply Voltage Figure 2. Output Voltage Swing vs. Supply Voltage Figure 3. Load Resistance Figure 4. Quiescent Current vs. Supply Voltage Figure 5. Input Bias Current vs. Temperature Figure 6. Closed-Loop Output Impedance vs. Temperature Figure 8. Short-Circuit Current Limit vs.

Temperature Figure 9. Gain Bandwidth vs. Temperature —4— REV. C AD Figure Open-Loop Gain and Phase Margin vs. Frequency Figure Open-Loop Gain vs. Load Resistance Figure Power Supply Rejection Ratio vs. Common-Mode Rejection Ratio vs. Large Signal Frequency Response Figure Output Swing and Error vs. Harmonic Distortion vs. Slew Rate vs. Temperature REV. C —5— AD Figure Crosstalk vs. This resistor provides protection for the input transistors by limiting the maximum current that can be forced into their bases.

For high performance circuits, it is recommended that a second resistor RB in Figures 21a and 22a be used to reduce biascurrent errors by matching the impedance at each input. This resistor reduces the error caused by offset voltages by more than an order of magnitude. Figure 21a. Follower Connection Figure 21b. Inverter Connection Figure 22b. Figure 23 shows the AD driving a doubly terminated cable in a follower configuration.

Table II details performance. Table I. Overshoot numbers are the percent overshoot of the 1 V step input. Increasing the values of C3 and C4 can further reduce the peaking at the expense of reduced bandwidth. The 1. The dynamic range of this circuit is approximately 55 dB and is primarily limited by feedthrough at low input levels and by the maximum output voltage at high levels.

Figure They could also be placed in parallel with an increase in bandwidth and a reduction in gain. The gain of the circuit is controlled by VX, which can range from 0 to 3 V dc. The overall bandwidth of the circuit is approximately 7 MHz with 0. Both short interconnection leads and a large ground plane are needed whenever possible to provide low resistance, low inductance circuit paths.

One should remember to minimize the effects of capacitive coupling between circuits. Furthermore, IC sockets should be avoided. Feedback resistors should be of a low enough value that the time constant formed with stray circuit capacitances at the amplifier summing junction will not limit circuit performance.

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