AD7225KN データシートの表示（PDF） - Analog Devices

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AD7225KN

LC2MOS Quad 8-Bit DAC with Separate Reference Inputs

Analog Devices 

AD7225

SPECIFICATION RANGES

For the AD7225 to operate to rated specifications, its input

reference voltage must be at least 4 V below the VDD power

supply voltage. This voltage differential is the overhead voltage

required by the output amplifiers.

The AD7225 is specified to operate over a VDD range from 12 V

± 5% to 15 V ± 10% (that is, from 11.4 V to 16.5 V) with a VSS

of −5 V ± 10%. Operation is also specified for a single 15 V ±

5% VDD supply. Applying a VSS of −5 V results in improved zero-

code error, improved output sink capability with outputs near

AGND, and improved negative-going settling time.

Performance is specified over a wide range of reference voltages

from 2 V to (VDD − 4 V) with dual supplies. This allows a range

of standard reference generators to be used, such as the AD780,

a 2.5 V band gap reference, and the AD584, a precision 10 V

reference. Note that an output voltage range of 0 V to 10 V

requires a nominal 15 V ± 5% power supply voltage.

Rev. C | Page 12 of 24

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