Part # AD767 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD767 Microprocessor-Compatible 12-Bit D/A Converter


Part Details:

a Microprocessor-Compatible 12-Bit D/A Converter AD767* FEATURES FUNCTIONAL BLOCK DIAGRAM Complete 12-Bit D/A Function On-Chip Output AmplifierHigh Stability Buried Zener Reference Fast 40 ns Write Pulse0.3" Skinny DIP and PLCC PackagesSingle Chip ConstructionMonotonicity Guaranteed Over TemperatureSettling Time: 3 s max to 1/2 LSBGuaranteed for Operation with 12 V or 15 V SuppliesTTL/5 V CMOS Compatible Logic InputsMIL-STD-883 Compliant Versions Available PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS The AD767 is a complete voltage output 12-bit digital-to- 1. The AD767 is a complete voltage output DAC with voltage analog converter including a high stability buried Zener reference and digital latches on a single IC chip. reference and input latch on a single chip. The converter uses 2. The input latch responds to write pulse widths as short as 12 precision high-speed bipolar current steering switches and a 40 ns assuring direct interface with the industry s fastest laser-trimmed thin-film resistor network to provide high accuracy. microprocessors. Microprocessor compatibility is achieved by the on-chip latch. 3. The internal buried Zener reference is laser-trimmed to The design of the input latch allows direct interface to 12-bit 10.00 volts with a ± 1% maximum error. The reference buses. The latch responds to strobe pulses as short as 40 ns, voltage is also available for external application. allowing use with the fastest available microprocessors. 4. The gain setting and bipolar offset resistors are matched to The functional completeness and high performance of the the internal ladder network to guarantee a low gain temperature AD767 result from a combination of advanced switch design, coefficient and are laser trimmed for minimum full-scale and high-speed bipolar manufacturing process, and the proven laser bipolar offset errors. wafer-trimming (LWT) technology. 5. The precision high-speed current steering switches and The subsurface (buried) Zener diode on the chip provides a on-board high-speed output amplifier settle within 1/2 LSB low-noise voltage reference which has long-term stability and for a 10 V full-scale transition in 3.0 µs when properly temperature drift characteristics comparable to the best discrete compensated. reference diodes. The laser trimming process which provides theexcellent linearity is also used to trim the absolute value of the 6. The AD767 is available in versions compliant with reference as well as its temperature coefficient. The AD767 is MIL-STD-883. Refer to the Analog Devices Military thus well suited for wide temperature range performance with Products Databook or current AD767/883B data sheet for ±1/2 LSB maximum linearity error and guaranteed monotonicity detailed specifications. over the full temperature range. Typical full-scale gain T.C. is5 ppm/°C. *Protected by Patent Numbers 3,803,590; 3,890,611; 3,932,863; 3,978,473; 4,020,486; and others pending. REV. A


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AD767.pdf Datasheet