AD7237AAR-REEL7:  Dual 12-Bit Complete DAC with Double Buffered Byte Loading

The AD7237A/AD7247A is an enhanced version of the industry standard AD7237/AD7247. Improvements include operation from 12 V to 15 V supplies, faster interface times and better reference variations with VDD . Additional features include faster settling times.

The AD7237A/AD7247A is a complete, dual, 12-bit, voltage output digital-to-analog converter with output amplifiers and Zener voltage reference on a monolithic CMOS chip. No external user trims are required to achieve full specified performance.

Both parts are microprocessor compatible, with high speed data latches and interface logic. The AD7247A accepts 12-bit parallel data which is loaded into the respective DAC latch using the WR input and a separate Chip Select input for each DAC. The AD7237A has a double buffered interface structure and an 8-bit wide data bus with data loaded to the respective input latch in two write operations. An asynchronous LDAC signal on the AD7237A updates the DAC latches and analog outputs.

A REF OUT/REF IN function is provided which allows either the on-chip 5 V reference or an external reference to be used as a reference voltage for the part. For single supply operation, two output ranges of 0 V to +5 V and 0 V to +10 V are available, while these two ranges plus an additional ±5 V range are available with dual supplies. The output amplifiers are capable of developing +10 V across a 2 k(ohm) load to GND.

The AD7237A/AD7247A is fabricated in Linear Compatible CMOS (LC2 MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic. Both parts are available in a 24-pin, 0.3" wide plastic and hermetic dual-in-line package (DIP) and are also packaged in a 24-lead small outline (SOIC) package。

AD7237AAR-REEL7 特点
AD7237AAR-REEL7 功能框图

AD7237A 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7237AAN 量产 24 ld PDIP 24 工业
AD7237AAR 量产 24 ld SOIC - Wide 24 工业
AD7237AAR-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237AAR-REEL7 量产 24 ld SOIC - Wide 24 工业
AD7237AARZ 量产 24 ld SOIC - Wide 24 工业
AD7237AARZ-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237AARZ-REEL7 量产 24 ld SOIC - Wide 24 工业
AD7237ABN 量产 24 ld PDIP 24 工业
AD7237ABR 量产 24 ld SOIC - Wide 24 工业
AD7237ABR-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237ABRZ 量产 24 ld SOIC - Wide 24 工业
AD7237ABRZ-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237AQ 量产 CERDIP GLASS SEAL 24 工业
AD7237ATQ 量产 CERDIP GLASS SEAL 24 军用
AD7237JN 量产 24 ld PDIP 24 工业
AD7237JNZ 量产 24 ld PDIP 24 工业
AD7237JR 量产 24 ld SOIC - Wide 24 商业
AD7237JR-REEL 量产 24 ld SOIC - Wide 24 商业
AD7237JRZ 量产 24 ld SOIC - Wide 24 工业
AD7237JRZ-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237KN 量产 24 ld PDIP 24 工业
AD7237KR 量产 24 ld SOIC - Wide 24 工业
AD7237KR-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237KRZ 量产 24 ld SOIC - Wide 24 工业
AD7237KRZ-REEL 量产 24 ld SOIC - Wide 24 工业
AD7237AAR-REEL7 应用技术支持与电子电路设计开发资源下载
  1. AD7237A 数据手册DataSheet 下载 . pdf
  2. ADI 模拟器件公司比较器产品选型指南 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf