AD7892 Analog Devices, AD7892 Datasheet
AD7892
Specifications of AD7892
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AD7892 Summary of contents
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... The part accepts an analog input range of ± ± (AD7892-1 +2.5 V (AD7892-2) and ± 2.5 V (AD7892-3). Overvoltage protection on the analog inputs for the AD7892-1 and AD7892-3 allows the input voltage ± ...
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... AD7892–SPECIFICATIONS Parameter A Versions DYNAMIC PERFORMANCE AD7892-1, AD7892-2 3 Signal to (Noise + Distortion) Ratio 70 3 Total Harmonic Distortion –78 3 Peak Harmonic or Spurious Noise –79 3 Intermodulation Distortion 2nd Order Terms –78 3rd Order Terms –78 AD7892-3 3 Signal to (Noise + Distortion) Ratio 70 3 Total Harmonic Distortion – ...
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... DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0 Analog Input Voltage to AGND AD7892 ± AD7892 –0 AD7892 ± Reference Input Voltage to AGND . . . –0 Digital Input Voltage to DGND . . . . . –0 Digital Output Voltage to DGND . . . . –0 Operating Temperature Range Commercial (A, B Versions –40°C to +85°C Extended (S Version – ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD7892 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 ...
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... V or ± AD7892SQ-1 AD7892AN +2.5 V AD7892BN +2.5 V AD7892AR +2.5 V AD7892BR +2.5 V ± 2.5 V AD7892AN-3 ± 2.5 V AD7892BN-3 ± 2.5 V AD7892AR-3 ± 2.5 V AD7892BR-3 2 EVAL-AD7892-2CB Evaluation Board 2 EVAL-AD7892-3CB Evaluation Board 3 EVAL-CONTROL BOARD Controller Board NOTES Plastic DIP Cerdip SOIC. ...
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... Analog Input 1. The analog input voltage to be converted by the AD7892 is applied to this input. IN1 For the AD7892-1, the input voltage range is either ± ± depending on where the V input is connected. For the AD7892-2, the voltage range on the V respect to the voltage appearing at the V input is ± ...
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... TTL-compatible output. When the device is in its serial mode, this becomes the serial clock pin, SCLK. SCLK is an input and an external serial clock must be provided at this pin to obtain serial data from the AD7892. Serial data is clocked out from the output shift register on the rising edges of SCLK after RFS goes low. ...
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... It also applies to situations where there is a step input change on the input voltage applied to the V input of the AD7892. It means that the user must wait for the duration of the track/hold acquisition time after the end of con- version or after a step input change to V conversion, to ensure that the part operates to specification ...
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... The signal scaling on the AD7892-1 allows the part to handle either ± ± input signals while operating from a single +5 V supply. The AD7892-2 handles +2.5 V analog input range, while signal scaling on the AD7892-3 allows it to handle ±2.5 V input signals when operating from a single supply. ...
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... Analog Input Section The AD7892 is offered as three part types allowing for four different analog input voltage ranges. The AD7892-1 handles either ± ± input voltage ranges. The AD7892-2 handles +2.5 V input voltage range while the AD7892-3 handles an input range of ± 2.5 V. ...
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... FSR is full-scale range and is 2.5 V with REF LSB = FSR/4096 = 0.61 mV with REF IN = +2.5 V. AD7892-3 Figure 5 shows the analog input section for the AD7892-3. The analog input range is ± 2 the V can be left unconnected but connected to a potential then that potential must be AGND. The input resistance on the V is 1.8 kΩ ...
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... ASIC. CONVST starts conversion and at the end of conversion the falling edge of the EOC output provides the CS and RD pulse to latch data out of the AD7892 and into the gate array/ASIC. This scheme allows for the fastest possible throughput rate with the part as no time is lost in interrupt service routines and as soon as data is available from the part it is transferred out of it ...
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... The analog ground plane should be allowed to run under the AD7892 to avoid noise coupling. The power supply lines to the AD7892 should use as large a trace as pos- sible to provide low impedance paths and reduce the effects of glitches on the power supply line. Fast switching signals like ...
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... AD7892 0.200 (5.08) 0.200 (5.08) 0.125 (3.18) 0.012 (0.30) 0.004 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). Plastic DIP (N-24) 1.228 (31.19) 1.226 (31.14 0.260 ± 0.001 (6.61 ± 0.03 PIN 1 0.130 (3.30) 0.128 (3.25) 0.07 (1.78) SEATING 0.02 (0.5) 0.11 (2.79) 15 PLANE 0.05 (1.27) 0.016 (0.41) 0.09 (2.28) 0 Cerdip (Q-24) 0.005 (0.13) MIN 0.098 (2.49) MAX 24 13 0.310 (7.87) 0.220 (5.59 PIN 1 0.060 (1.52) 1.280 (32.51) MAX ...