AD7226 is an 8-bit digital-to-analog converter produced by Analog Devices with 4 independent output buffer amplifiers and interface logic
The AD7226 is a quad 8‑bit voltage‑mode digital‑to‑analog converter that includes on‑chip output amplifiers and interface logic. It is offered in 20‑lead DIP, SOIC, SSOP, and PLCC packages and is compatible with TTL/CMOS logic levels.
The device can operate from dual supplies or a single 15 V supply, provides up to 5 mA output current per channel, and features laser‑trimmed offsets that eliminate the need for external trimming. Detailed specifications, pin configurations, and timing diagrams are provided for designers.
| Resolution | 8 Bits |
|---|---|
| Total Unadjusted Error | +1 LSB max |
| Relative Accuracy | +0.5 LSB max |
| Differential Nonlinearity | +1 LSB max |
| Full‑Scale Error | +0.5 LSB max |
| Full‑Scale Temperature Coefficient | +20 ppm/°C typ |
| Zero Code Error | +20 mV max |
| Input Resistance | 2 kΩ min |
| Input Capacitance | 50 pF min |
| Input High Voltage | 2.4 V min |
| Input Low Voltage | 0.8 V max |
| Output Slew Rate | 2.5 V/µs min |
| Maximum Output Current per Channel | 5 mA |
The AD7226 can operate from dual supplies or from a single 15 V supply.
The device contains four identical 8‑bit DAC channels.
Each DAC output buffer can source up to 5 mA of current.
The digital inputs are TTL/CMOS compatible with a 5 V logic level.