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AD7531LN Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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AD7531LN Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 14 page TLH5689 May 1996 DAC1020DAC1021DAC1022 10-Bit Binary Multiplying DA Converter DAC1220DAC1222 12-Bit Binary Multiplying DA Converter General Description The DAC1020 and the DAC1220 are respectively 10 and 12-bit binary multiplying digital-to-analog converters A de- posited thin film R-2R resistor ladder divides the reference current and provides the circuit with excellent temperature tracking characteristics (00002% C linearity error temper- ature 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) The digital inputs are compatible with DTLTTL logic levels as well as full CMOS logic level swings This part combined with an external amplifier and voltage reference can be used as a standard DA converter however it is also very attractive for multiplying applications (such as digitally con- trolled gain blocks) since its linearity error is essentially in- dependent of the voltage reference All inputs are protected from damage due to static discharge by diode clamps to Va and ground This part is available with 10-bit (005%) 9-bit (010%) and 8-bit (020%) non-linearity guaranteed over temperature (note 1 of electrical characteristics) The DAC1020 DAC1021 and DAC1022 are direct replacements for the 10- bit resolution AD7520 and AD7530 and equivalent to the AD7533 family The DAC1220 and DAC1222 are direct re- placements for the 12-bit resolution AD7521 and AD7531 family Features Y Linearity specified with zero and full-scale adjust only Y Non-linearity guaranteed over temperature Y Integrated thin film on CMOS structure Y 10-bit or 12-bit resolution Y Low power dissipation 10 mW 15V typ Y Accepts variable or fixed reference b25VsVREFs25V Y 4-quadrant multiplying capability Y Interfaces directly with DTL TTL and CMOS Y Fast settling time500 ns typ Y Low feedthrough error LSB 100 kHz typ Equivalent Circuit Note Switches shown in digital high state TLH5689 – 1 10-BIT DA CONVERTERS Ordering Information Temperature Range 0 Cto70 C b 40 Cto85 C Non- 005% DAC1020LCN AD7520LNAD7530LN DAC1020LCV DAC1020LIV Linearity 010% DAC1021LCN AD7520KNAD7530KN 020% DAC1022LCN AD7520JNAD7530JN Package Outline N16A V20A 12-BIT DA CONVERTERS Temperature Range 0 Cto70 C b 40 Cto a85 C Linearity Non- 005% DAC1220LCN AD7521LNAD7531LN DAC1220LCJ AD7521LDAD7531LD 020% DAC1222LCN AD7521JNAD7531JN DAC1222LCJ AD7521JDAD7531JD Package Outline N18A J18A Note Devices may be ordered by either part number C1996 National Semiconductor Corporation RRD-B30M96Printed in U S A http www nationalcom |
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