Product Summary

The ADC12451CIJ is a CMOS 12-bit plus sign successive ap-proximation analog-to-digital converter whose dynamic specifications (S/N, THD, etc.) are tested and guaranteed.On request, the ADC12451 goes through a self-calibration cycle that adjusts linearity, zero and full-scale errors. TheADC12451CIJ also has the ability to go through an Auto-Zero cycle that corrects the zero error during every conversion. The analog input to the ADC12451 is tracked and held by the internal circuitry, so an external sample-and-hold is not required. The ADC12451CIJ has a S/H control input which directly controls the track-and-hold state of the A/D. A unipolar analog input voltage range (0V to a5V) or a bipolar range (b5V to a5V) can be accommodated with g5V supplies.

Parametrics

ADC12451CIJ absolute maximum ratings:(1)Supply Voltage (VCC-DVCC-AVCC):6.5V; (2)Negative Supply Voltage (V-):-6.5V; (3)Voltage at Logic Control Inputs: -0.3V to (VCC + 0.3V); (4)Voltage at Analog Inputs: (VIN, VREF) (V- -0.3V) to (VCC + 0.3V); (5)Input Current at any Pin (Note 3): ±5 mA; (6)Package Input Current (Note 3):±20 mA; (7)Power Dissipation at 25°C(Note 4): 875 mW; (8)Storage Temperature Range -65°C to +150°C; (9)ESD Susceptability (Note 5) :2000V; (10)Soldering Information: J Package (10 Seconds):300°C.

Features

ADC12451CIJ features:(1)Self-calibration provides excellent temperature stability; (2)Internal sample-and-hold; (3)8-bit μP/DSP interface; (4)Bipolar input range with a single +5V reference.

Diagrams

ADC12451CIJ simplified block diagram

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