The AD7226 is a chip that contains four 8-bit voltage-output digital-to-analog converters, with output buffer amplifiers and interface logic. No external trims are required to achieve full specified performance for the part. Separate on-chip latches are provided for each of the four D/A converters. Data is transferred into one of these data latches through a common 8-bit TTL/CMOS (5 V) compatible input port. Control inputs A0 and A1 determine which DAC is loaded when WR goes low. The control logic is speed-compatible with most 8-bit microprocessors. Each D/A converter includes an output buffer amplifier capable of driving high impedance loads.
The AD7226 is a monolithic chip containing four 8-bit DACs with on-chip latches and interface logic compatible with TTL/CMOS. It features separate data latches for each converter, controlled by inputs AO and Al, allowing microprocessor-compatible operation without user trims.
Each D/A converter includes an output buffer amplifier capable of driving up to 5 mA of current. The amplifiers' offsets are laser-trimmed during manufacture, eliminating the need for offset nulling. The device supports both dual supply (2 V to 12.5 V reference) and single supply operation.
| Resolution | 8 Bits |
|---|---|
| Total Unadjusted Error | +1 LSB max |
| Differential Nonlinearity | +1 LSB max |
| Full-Scale Error | +0.5 LSB max |
| Zero Code Error | +20 mV max |
| Voltage Output Slew Rate | 2.5 V/s min |
| Digital Crosstalk | 10 nV secs typ |
| Operating Temperature (K/B Version) | -40°C to +85°C |
No user trims are required to achieve full specified performance for the part.
Each D/A converter includes an output buffer amplifier capable of driving up to 5 mA of output current.
Yes, it is a common 8-bit TTL/CMOS (5 V) compatible input port.