ADI AD7247ABR

Напряжение - буферизованноеПараллельный±10,8 В ~ 16,5 В-40°C ~ 85°C

Overview

The AD7237/A D7247 is a cuuplete, dual,1Z-bit, voltage output digital-to-analog converter with output amplificrs and Zencrvoltage 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 AD7247ABR accepts 12-bit parallel data which is loaded into the respective DAC latch using the WR input and a separare Chip Select input for each DAC. The AD7237 has a double buffered interface structure and an 8-bit wide data bus with data loaded to the respextive input latch in two write operations. An asynchronous LDAC signal on the AD7237 updates the DAC latches and analog outputs. A REF OUT/REF IN function is provided which allows cither the on-chip 5 V reference or an external reference to be used asa reference voltage for the part. For single supply operation, two output ranges of 0 to+5 V and O 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 devel-opingi10V across a 2 kf) load to GND. The AD7237(AD7247ABR is fabricated in Linear Compatible CMOS (LCMOS), an advanced, mised teclhnulogy pracess that combines precision bipolar circuits with low power CMOS logic. Both parts are available in a 24-pin,0.3"wide plastic and her. metic dual-in-line package (DIP) and are also packaged in a 24 lead small outline(SOIC) package. DACPORT is a rademark of Analog Devices, lae.

Features

Applications

• Calibration
• Motor Control
• Data Distribution System
• Digital Potentiometer
• Software Radio
• Wireless infrastructure:
• WCDMA, CDMA2000, TD-SCDMA, WiMAX
• Wideband communications:
• LMDS/MMDS, point-to-point
• Instrumentation: