The AD7943, AD7945, and AD7948 are fast 12-bit multiplying DACs that operate from a single +5V supply (Normal Mode) and a single +3.3V to +5V supply (Biased Mode). The AD7943 has a serial interface, the AD7945 has a 12-bit parallel interface, and the AD7948 has an 8-bit parallel interface.
The AD7945 is a fast 12‑bit multiplying DAC that operates from a single +5 V supply (Normal Mode) or a +3.3 V to +5 V supply (Biased Mode). It offers low power consumption (5 pW typ), high speed (40 ns write pulsewidth), and low glitch performance. The device is available in 20‑lead DIP, SOP, and SSOP packages and is intended for battery‑powered instrumentation, laptop computers, and upgrades of the 754x series DACs.
The handbook includes detailed specifications for normal and biased modes, AC performance characteristics, timing specifications, absolute maximum ratings, ordering guide, pin configurations, and microprocessor interfacing examples. Package dimensions and mechanical drawings are also provided.
| Resolution | 12 Bits |
|---|---|
| Typical Power Consumption | 5 pW typ |
| Write Pulsewidth (AD7945) | 40 ns |
The AD7945 is offered in 20‑lead DIP, 20‑lead SOP, and 20‑lead SSOP packages.
Typical power consumption is 5 pW.