Datenblatt-Suchmaschine für elektronische Bauteile |
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DAC1218LCJ-1 Datenblatt(PDF) 1 Page - National Semiconductor (TI) |
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DAC1218LCJ-1 Datenblatt(HTML) 1 Page - National Semiconductor (TI) |
1 / 12 page TLH5691 December 1994 DAC1218DAC1219 12-Bit Binary Multiplying DA Converter General Description The DAC1218 and the DAC1219 are 12-bit binary 4-quad- rant multiplying D to A converters The linearity differential non-linearity and monotonicity specifications for these con- verters are all guaranteed over temperature In addition these parameters are specified with standard zero and full- scale adjustment procedures as opposed to the impractical best fit straight line guarantee This level of precision is achieved though the use of an advanced silicon-chromium (SiCr) R-2R resistor ladder net- work This type of thin-film resistor eliminates the parasitic diode problems associated with diffused resistors and al- lows the applied reference voltage to range from b25V to 25V independent of the logic supply voltage CMOS current switches and drive circuitry are used to achieve low power consumption (20 mW typical) and mini- mize output leakage current errors (10 nA maximum) Unique digital input circuitry maintains TTL compatible input threshold voltages over the full operating supply voltage range The DAC1218 and DAC1219 are direct replacements for the AD7541 series AD7521 series and AD7531 series with a significant improvement in the linearity specification In applications where direct interface of the D to A converter to a microprocessor bus is desirable the DAC1208 and DAC1230 series eliminate the need for additional interface logic Features Y Linearity specified with zero and full-scale adjust only Y Logic inputs which meet TTL voltage level specs (14V logic threshold) Y Works with g10V referencefull 4-quadrant multiplication Y All parts guaranteed 12-bit monotonic Key Specifications Y Current Settling Time 1 ms Y Resolution 12 Bits Y Linearity (Guaranteed 12 Bits (DAC1218) over temperature) 11 Bits (DAC1219) Y Gain Tempco 15 ppm C Y Low Power Dissipation 20 mW Y Single Power Supply 5 VDC to 15 VDC Typical Application TLH5691 – 1 VOUT ebVREF A12aA24aA38a A12 4096 J where AN e 1 if digital input is high AN e 0 if digital input is low Connection Diagram Dual-In-Line Package TLH5691 – 15 Top View Ordering Information Temperature Range 0 Cto a70 C b 40 Cto a85 C Package Outline Non 0012% DAC1218LCJ-1 DAC1218LCJ J18A Cerdip Linearity 0024% DAC1219LCJ J18A Cerdip BI-FETTM is a trademark of National Semiconductor Corp C1995 National Semiconductor Corporation RRD-B30M115Printed in U S A |
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