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AD767BD データシート(PDF) 1 Page - Analog Devices |
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AD767BD データシート(HTML) 1 Page - Analog Devices |
1 / 8 page FUNCTIONAL BLOCK DIAGRAM 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 Microprocessor-Compatible 12-Bit D/A Converter AD767* PRODUCT DESCRIPTION The AD767 is a complete voltage output 12-bit digital-to- analog converter including a high stability buried Zener reference and input latch on a single chip. The converter uses 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network to provide high accuracy. Microprocessor compatibility is achieved by the on-chip latch. The design of the input latch allows direct interface to 12-bit buses. The latch responds to strobe pulses as short as 40 ns, allowing use with the fastest available microprocessors. The functional completeness and high performance of the AD767 result from a combination of advanced switch design, high-speed bipolar manufacturing process, and the proven laser wafer-trimming (LWT) technology. The subsurface (buried) Zener diode on the chip provides a low-noise voltage reference which has long-term stability and temperature drift characteristics comparable to the best discrete reference diodes. The laser trimming process which provides the excellent linearity is also used to trim the absolute value of the reference as well as its temperature coefficient. The AD767 is thus well suited for wide temperature range performance with ±1/2 LSB maximum linearity error and guaranteed monotonicity over the full temperature range. Typical full-scale gain T.C. is 5 ppm/ °C. *Protected by Patent Numbers 3,803,590; 3,890,611; 3,932,863; 3,978,473; 4,020,486; and others pending. FEATURES Complete 12-Bit D/A Function On-Chip Output Amplifier High Stability Buried Zener Reference Fast 40 ns Write Pulse 0.3" Skinny DIP and PLCC Packages Single Chip Construction Monotonicity Guaranteed Over Temperature Settling Time: 3 s max to 1/2 LSB Guaranteed for Operation with 12 V or 15 V Supplies TTL/5 V CMOS Compatible Logic Inputs MIL-STD-883 Compliant Versions Available PRODUCT HIGHLIGHTS 1. The AD767 is a complete voltage output DAC with voltage reference and digital latches on a single IC chip. 2. The input latch responds to write pulse widths as short as 40 ns assuring direct interface with the industry’s fastest microprocessors. 3. The internal buried Zener reference is laser-trimmed to 10.00 volts with a ±1% maximum error. The reference voltage is also available for external application. 4. The gain setting and bipolar offset resistors are matched to the internal ladder network to guarantee a low gain temperature coefficient and are laser trimmed for minimum full-scale and bipolar offset errors. 5. The precision high-speed current steering switches and on-board high-speed output amplifier settle within 1/2 LSB for a 10 V full-scale transition in 3.0 µs when properly compensated. 6. The AD767 is available in versions compliant with MIL-STD-883. Refer to the Analog Devices Military Products Databook or current AD767/883B data sheet for detailed specifications. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 |
同様の部品番号 - AD767BD |
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同様の説明 - AD767BD |
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