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

The AD767 is a complete voltage output 12-bit digital-to-analog converter including high stability buried Zener reference and input latch on a single chip. The converter uses 12 precision high-speed biopolar 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 biopolar 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 redference 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 is 5 ppm/oC.

AD767 特点

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 us 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

AD767 功能框图

AD767 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
5962-8961701LA	量产	S/B OR B/B CERAMIC DIP	24	军用
AD767AD	量产	S/B OR B/B CERAMIC DIP	24	工业
AD767BD	量产	S/B OR B/B CERAMIC DIP	24	工业
AD767JN	量产	24 ld PDIP	24	商业
AD767JNZ	量产	24 ld PDIP	24	商业
AD767JP	量产	28 ld PLCC	28	商业
AD767JP-REEL	量产	28 ld PLCC	28	商业
AD767JPZ	量产	28 ld PLCC	28	商业
AD767JPZ-REEL	量产	28 ld PLCC	28	商业
AD767KN	量产	24 ld PDIP	24	商业
AD767KNZ	量产	24 ld PDIP	24	商业
AD767KP	量产	28 ld PLCC	28	商业
AD767KPZ	量产	28 ld PLCC	28	商业
AD767KPZ-REEL	量产	28 ld PLCC	28	商业
AD767SD/883B	量产	S/B OR B/B CERAMIC DIP	24	军用