ADI AD370KN

The AD370/AD371 is a complete 12-bit digital-to-analog converter fabricated with the most advanced monolithic and hybrid technologies. The design incorporates a low power monolithic CMOS DAC, precision high speed FET-input operational amplifiers and a low drift reference available in a hermetically sealed package. This innovative design results in significant performance advantages over conventional designs. The integral package-substrate combined with a lower chip count improves reliability over the standard low power hybrids of this type. The converters come in two versions: AD370 with a bipolar output voltage range (-10V to +10V) and AD371 with a unipolar output voltage range (0 to +10V). Each device is internally laser trimmed for gain and offset to provide adjustment free operation with only ±0.05% absolute error. The FET input operational amplifiers optimize the speed vs. power trade-off by settling to 1/2 LSB from a full scale transition in 35μs with maximum total power dissipation of only 150mW. The low power monolithic CMOS DAC employs a current-switched silicon-chromium R-2R ladder to ensure that monotonicity is maintained over the full temperature range. The AD370/AD371 “K” and “S” features ±1/2 LSB maximum linearity error. Its rated temperature ranges are 0 to +70°C for the “J” and “K” versions and -55°C to +125°C for the “S” version.

• Low Power: 150mW max
• Linearity: ±1/2 LSB, -55°C to +125°C (S Version)
• TTL/CMOS Compatible
• Compatible with Standard 18-Pin DAC Configurations
• Hermetic 18-Pin DIP ("D" Package)
• Factory Trimmed Gain and Offset: No External Adjustments Required
• The AD370/AD371 replaces other devices of this type with significant increases in performance.
• Reduced power consumption requirements (150mW max) result in improved stability and shorter warm-up time.
• The precision output amplifiers and CMOS DAC have been optimized to settle within 1/2 LSB for a full scale transition in 35μs.
• Reduced chip count and integral package-substrate improve reliability.
• System performance upgrading is possible without redesign.
• Internally laser trimmed - no gain or offset adjustments are required for specified accuracy.
• The device is available in a hermetically-sealed ceramic 18 lead dual-in-line package. Processing to MIL-STD-883 Class B is available.
• The AD370/AD371 is a second-source for 18-pin 12-bit DACs of the same configuration.