The AD5545/AD5555 are 16-bit/14-bit, current-output, digital-to-analog converters designed to operate from a single 5 V supply with bipolar output up to ±15 V capability. An external reference is needed to establish the full-scale output-current. An internal feedback resistor (RFB) enhances the resist
The AD5545/AD5555 are current‑output digital‑to‑analog converters that operate from a single 5 V supply and provide bipolar output up to ±15 V. An external reference sets the full‑scale output current, while an internal feedback resistor improves resistance and temperature tracking when used with an external op‑amp.
A 3‑wire serial interface (SDI, CLK, CS) allows high‑speed data transfer, and the LDAC pin enables simultaneous update of both channels. The devices are supplied in a compact TSSOP‑16 package and are rated for operation from –40 °C to +85 °C.
| Resolution (AD5545) | 16 bits |
|---|---|
| Resolution (AD5555) | 14 bits |
| Full‑scale output current | 2 mA |
| Supply voltage | 5 V ±10% |
| Operating temperature range | -40 °C to +85 °C |
| Interface type | 3‑wire serial (SDI, CLK, CS) |
| Package | TSSOP‑16 |
| Reference input range | -12 V to +12 V |
| Input leakage current | 10 pA |
The AD5545 provides a 16‑bit resolution.
Both devices operate from a single 5 V supply (±10%).
A 3‑wire interface (SDI, CLK, CS) is used for data transfer.
The full‑scale output current is 2 mA.