AD7837BQ Datasheet PDF - ADI

●Product Details

●The AD7837/AD7847 is a complete, dual, 12-bit multiplying digital-to-analog converter with output amplifiers 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 AD7847 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 AD7837 has a double-buffered 8-bit bus interface structure with data loaded to the respective input latch in two write operations. An asynchronous LDAC signal on the AD7837 updates the DAC latches and analog outputs.

●The output amplifiers are capable of developing ±10 V across a 2 kOhm load. They are internally compensated with low input offset voltage due to laser trimming at wafer level.

●The amplifier feedback resistors are internally connected to VOUT on the AD7847.

●The AD7837/AD7847 is fabricated in Linear Compatible CMOS (LC2MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic.

●A novel low leakage configuration (U.S. Patent No. 4,590,456) ensures low offset errors over the specified temperature range.

●### Features and Benefits

● Two 12-Bit MDACs with Output Amplifiers

● Space-Saving 0.3", 24-Lead DIP an 24-Terminal SOIC Package

● 4-Quadrant Multiplication

● Parallel Loading Structure: AD7847

● (8+4) Loading Structure: AD7837