The document describes a LC2MOS 8-bit DAC chip called AD7224, which includes output amplifiers. This chip can be operated with a single or dual power supply, and has a low total unadjusted error of less than 1 LSB over a wide temperature range. The single-chip design and CMOS fabrication result in low power consumption. The chip is available in standard 18-pin DIP, 20-pin surface mount, and SOIC packages.
The AD7224 is a precision voltage-output digital-to-analog converter featuring double buffered interface logic on a monolithic CMOS chip. It includes an integrated output amplifier capable of driving a 2 kΩ load to +10 V and operates with either single or dual power supplies.
The document provides comprehensive static and dynamic performance specifications for various temperature ranges (Commercial, Industrial, Extended). Key features include low total unadjusted error (less than 1 LSB), TTL/CMOS compatible inputs, and versatile interface logic suitable for interfacing with most microprocessors.
| Resolution | 8 Bits |
|---|---|
| Total Unadjusted Error | +2 +1 LSB max |
| Voltage Output Slew Rate | 2.5 V/us min |
| Minimum Load Resistance | 2 kQ min |
| Power Dissipation | 450 mW |
Industrial versions (B, C Versions) operate from -40°C to +85°C.
Yes, the part is specified for single supply operation using a reference of +10 V.
For dual supplies, the maximum possible reference voltage is (Vpp - 4) V.