AD7847

PRODUCTION

LC2MOS Complete, Dual 12-Bit MDAC, Parallel Loading Structure

Viewing:

Overview

  • 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

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 kΩ 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 ensures low offset errors over the specified temperature range.

AD7847
LC2MOS Complete, Dual 12-Bit MDAC, Parallel Loading Structure
AD7847 Functional Block Diagram
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts Product Life Cycle Description
AD5752R PRODUCTION Complete, Dual, 16-Bit, Serial Input, Unipolar/Bipolar, Voltage Output DAC
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Tools & Simulations

Precision DAC Error Budget Tool

The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.

Open Tool

Latest Discussions

Recently Viewed