AD561: Low Cost 10-Bit Monolithic D/A Converter

The AD561 is an integrated circuit 10-bit digital-to-analog converter combined with a high stability voltage reference fabricated on a single monolithic chip. Using ten precision high-speed current-steering switches, a control amplifier, voltage reference, and laser-trimmed thin-film SiCr resistor network, the device produces a fast, accurate analog output current. Laser trimmed output application resistors are also included to facilitate accurate, stable current-to-voltage conversion; they are trimmed to 0.1% accuracy, thus eliminating external trimmers in many situations.

Several important technologies combine to make the AD561 the most accurate and most stable 10-bit DAC available. The low temperature coefficient, high stability thin-film network is trimmed at the wafer level by a fine resolution laser system to 0.01% typical linearity. This results in an accuracy specification of ±1/4 LSB max for the K and T versions, and 1/2 LSB max for the J and S versions.

The AD561 also incorporates a low noise, high stability subsurface zener diode to produce a reference voltage with excellent long term stability and temperature cycle characteristics, which challenge the best discrete Zener references. A temperature compensation circuit is laser-trimmed to allow custom correction of the temperature coefficient of each device. This results in a typical full-scale temperature coefficient of 15 ppm/°C; the TC is tested and guaranteed to 30 ppm/°C max for the K and T versions, 60 ppm/°C max for the S, and 80 ppm/°C for the J.

The AD561 is available in four performance grades. The AD561J and K are specified for use over the 0°C to +70°C temperature range and are available in either a 16-pin hermetically-sealed ceramic DIP or a 16-pin molded plastic DIP. The AD561S and T grades are specified for the -55°C to +125°C range and are available in the ceramic package.

AD561 特点

Complete Current Output Converted
High Stability Buried Zener Reference
Laser Trimmed to High Accuracy (1/4 LSB Max Error, AD561K, T)
Trimmed Output Application Resistors for 0 V to +10 V, ±5 V Ranges
Fast Settling - 250 ns to 1/2 LSB
Guaranteed Monotonocity Over Full Operating Temperature Range
TTL/DTL and CMOS Compatible (Positive True Logic)
Single Chip Monolithic Construction
Available in Chip Form
MIL-STD-883-Compliant Versions Available

AD561 功能框图

AD561 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
AD561JCHIPS	量产	CHIPS OR DIE	-	商业
AD561JD	量产	16 ld Side-Brazed CerDip	16	商业
AD561JNZ	量产	16 ld PDIP	16	商业
AD561KD	量产	16 ld Side-Brazed CerDip	16	商业
AD561KNZ	量产	16 ld PDIP	16	商业
AD561SD	量产	16 ld Side-Brazed CerDip	16	军用
AD561SD/883B	量产	16 ld Side-Brazed CerDip	16	军用
AD561TCHIPS	量产	CHIPS OR DIE	-	军用
AD561TD/883B	量产	16 ld Side-Brazed CerDip	16	军用
JM38510/13301BEA	量产	16 ld Side-Brazed CerDip	16	军用