AD7243

Features:

12-Bit CMOS DAC with
          On-Chip Voltage Reference
          Output Amplifier
Three Selectable Output Ranges
          5 V to +5 V, 0 V to +5 V, 0 V to +10 V
Serial Interface
300 kHz DAC Update Rate
Small Size: 16-Lead DIP or SOIC
Nonlinearity:
1/2 LSB TMIN to TMAX
Low Power Dissipation: 100 mW Typical


Application

Process Control
Industrial Automation
Digital Signal Processing Systems
Input/Output Ports


Pinout




Specifications

V_DD to AGND, DGND  . . . . . . . . . . . . . . . . . 0.3 V to +17 V
V_SS to AGND, DGND  . . . . . . . . . . . . . . . . . +0.3 V to 17 V
AGND to DGND  . . . . . . . . . . . . . . . .  0.3 V to V_DD + 0.3 V
V_OUT² to AGND  . . . . . . . . . . . . . . . . . 6 V to V_DD + 0.3 V
REFOUT to AGND  . . . . . . . . . . . . . . . . . . . . . . . 0 V to V_DD
REFIN to AGND  . . . . . . . . . . . . . . . . 0.3 V to V_DD + 0.3 V
Digital Inputs to DGND  . . . . . . . . . . 0.3 V to V_DD + 0.3 V
SDO to DGND  . . . . . . . . . . . . . . . . . 0.3 V to V_DD + 0.3 V
Operating Temperature Range
Industrial (A, B Versions)  . . . . . . . . . . . . 40°C to +85°C
Extended (S Version)  . . . . . . . . . . . . . . 55°C to +125°C


Description

The AD7243 is a complete 12-bit, voltage output, digital-to-analog converter with output amplifier and Zener voltage reference on a monolithic CMOS chip. No external trims are required to achieve full specified performance.The output amplifier is capable of developing +10 V across a 2 kΩ load. The output voltage ranges with single supply operation are 0 V to +5 V or 0 V to +10 V, while an additional bipo- lar ±5 V output range is available with dual supplies. The ranges are selected using the internal gain resistor.

The AD7243 is fabricated on Linear Compatible CMOS (LC2 MOS), an advanced, mixed technology process. It is pack- aged in 16-lead DIP and 16-lead SOIC packages.