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AD75004KP データシート(PDF) 1 Page - Analog Devices |
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AD75004KP データシート(HTML) 1 Page - Analog Devices |
1 / 4 page FUNCTIONAL BLOCK DIAGRAM VOLTAGE REFERENCE TTL INPUTS 8-BIT BUS INPUT LATCHES DAC LATCHES +5V D7 D6 D5 D4 D3 D2 D1 D0 CONTROL LOGIC TTL INPUTS A3 A2 A1 A0 2.22k +12V 10k V REFOUT V REFIN CS WR VOUT3 VOUT2 VOUT1 VOUT0 V DD VSS AGND DGND 8 + 4-BIT LATCHES 8 + 4-BIT LATCHES 8 + 4-BIT LATCHES 8 + 4-BIT LATCHES 12-BIT LATCH –12V 12-BIT DAC 12-BIT DAC 12-BIT DAC 12-BIT DAC 12-BIT LATCH 12-BIT LATCH 12-BIT LATCH 10k 10k 10k AD75004 REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a Quad 12-Bit D/A Converter AD75004 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 PRODUCT DESCRIPTION The AD75004 contains four complete, voltage output, 12-bit digital-to-analog converters, a high stability bandgap reference, and double-buffered input latches on a single chip. The convert- ers use 12 precision high speed bipolar current steering switches and laser-trimmed thin-film resistor networks to provide fast settling time and high accuracy. Microprocessor compatibility is achieved by the on-chip double-buffered latches. The design of the input latches allows direct interface to 8-bit buses. The 12 bits of data from the first rank of latches can then be transferred to the second rank, avoiding generation of spurious analog output values. The latch responds to strobe pulses as short as 50 ns, allowing use with fast microprocessors. The functional completeness and high performance of the AD75004 results from a combination of advanced switch de- sign, the BiMOS II fabrication process, and proven laser trim- ming technology. BiMOS II is an epitaxial BiCMOS process optimized for analog and converter functions. The AD75004 is trimmed at the wafer level and is specified to ±1/2 LSB maxi- mum linearity error at 25 °C and ±3/4 LSB over the full operat- ing temperature range. The on-chip output amplifiers provide an output range of ±5 V, with 1 LSB equal to 2.44 mV. FEATURES 4 Complete 12-Bit D/A Functions Double-Buffered Latches Simultaneous Update of All DACs Possible 5 V Output Range High Stability Bandgap Reference Monolithic BiMOS Construction Guaranteed Monotonic over Temperature 3/4 LSB Linearity Guaranteed over Temperature 4 s max Settling Time to 0.01% Operates with 12 V Supplies Low Power: 720 mW max Including Reference TTL/5 V CMOS Compatible Logic Inputs 8-Bit Microprocessor Interface 24-Pin PDIP or 28-Lead PLCC Package The bandgap reference on the chip has low noise, long term stability and temperature drift characteristics comparable to discrete reference diodes. The absolute value of the reference is laser trimmed to +5.00 V with 0.6% maximum error. Its tem- perature coefficient is also laser trimmed. Typical full-scale gain TC is 15 ppm/ °C. With guaranteed monotonicity over the full temperature range, the AD75004 is well suited for wide temperature range performance. |
同様の部品番号 - AD75004KP |
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同様の説明 - AD75004KP |
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