The AD7541A is a low-cost, high-performance 12-bit monolithic multiplying digital-to-analog converter. It is fabricated using advanced, low-noise, thin-film CMOS technology and is available in a standard 18-lead DIP and in 20-terminal surface mount packages. The AD7541A is functionally and pin compatible with the industry standard AD7541 device and offers improved specifications and performance.
The AD7541A is a 12‑bit monolithic multiplying digital‑to‑analog converter fabricated in low‑noise thin‑film CMOS technology. It is offered in 18‑lead DIP, 20‑lead surface‑mount and ceramic leadless packages and is pin‑compatible with the standard AD7541. The device provides full‑scale endpoint linearity, improved gain error and temperature stability, and does not require external Schottky protection diodes.
Typical applications include unipolar binary (2‑quadrant) operation, bipolar (4‑quadrant) multiplication, and single‑supply voltage‑switching configurations. The datasheet includes detailed specifications, absolute maximum ratings, pin configurations, circuit analysis, and ordering information for various temperature‑grade versions.
| Resolution | 12 bits |
|---|---|
| Gain Error | ±6 LSB max (typical grades ±3 LSB) |
| Gain Temperature Coefficient | 2 ppm/°C typical, 5 ppm/°C max |
| Output Leakage Current (OUT1) | ±5 nA max |
| Power Dissipation (any package) | 450 mW at +75 °C |
No, the device is latch‑up‑free and does not need Schottky diodes for output protection.
The gain error temperature coefficient is typically 2 ppm/°C and up to 5 ppm/°C maximum.
Commercial versions operate from 0 °C to +70 °C.