Exar Corporation MP7614
The MP7614 is a high density 14-bit CMOS multiplying Digital-to-Analog Converter. Each resistor contributes only 1/16 full scale output thus reducing the matching accuracy requirement of the resistor and CMOS switches from 0.0015% to 0.006%. Using the most significant bit (MSB) segmentation technique, the MP7614 features 13-bit (0.012%) differential and 12-bit (0.01%) integral linearity.| Part No. | MP7614 |
|---|---|
| Datasheet | MP7614 Download |
| Manufacturer |  Exar Corporation |
| Description | 15 V CMOS Multiplying 14-Bit Digital-to-Analog Converter |
| Buy | Stock & Price |
FEATURES
●●
●
● Full Four-Quadrant Multiplication Excellent Stability Over Temperature and Time Guaranteed Monotonic TTL/5 V CMOS Compatible w w a D . w S a t e e h U 4 t m o .c MP7614 15 V CMOS Multiplying 14-Bit Digital-to-Analog Converter
● Low Sensitivity to Output Amplifier VOS
● Low Glitch Energy
● 16-Bit Version: MP7616
GENERAL DESCRIPTION
Silicon nitride passivation and untrimmed silicon chromium resistors have been combined to provide long term stability and reliability. To achieve 13-bit linearity without laser trim, the MP7614 digitally decodes the four MSB’s into 15 equal current sources, rather than the standard binary-weighted sources. The decoding technique achieves an eightfold improvement in differential linearity stability over temperature, an eightfold improvement in relative accuracy due to aging effects (long term stability), a fourfold improvement in glitch amplitude, and a tenfold reduction in sensitivity to output amplifier offset voltage. SIMPLIFIED BLOCK DIAGRAM VDD VREF R R R w Rev.
