General Description
●The DAC1020 and the DAC1220 are, respectively, 10 and 12-bit binary multiplying digital-to-analog converters. A deposited thin film R-2R resistor ladder divides the reference current and provides the circuit with excellent temperature tracking characteristics (0.0002%/§C linearity error temperature coefficient maximum). The circuit uses CMOS current switches and drive circuitry to achieve low power consump tion (30 mW max) and low output leakages (200 nA max).
●Features
●Linearity specified with zero and full-scale adjust only
●Non-linearity guaranteed over temperature
●Integrated thin film on CMOS structure
●10-bit or 12-bit resolution
●Low power dissipation 10 mW@15V typ
●Accepts variable or fixed referenceb25VsVREFs25V
●4-quadrant multiplying capability
●Interfaces directly with DTL, TTL and CMOS
●Fast settling timeÐ500 ns typ
●Low feedthrough errorÐ(/2LSB@100 kHz typ
