Key facts
- Brand
- Analog Devices
- Model
- AD7840
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7840 14‑Bit DAC Datasheet
The AD7840 is a 14‑bit voltage‑output digital‑to‑analog converter that integrates a buried Zener reference, output buffer, and high‑speed control logic. It supports both parallel and serial data interfaces, making it compatible with high‑speed DSPs and microprocessors. The device operates from ±5 V supplies and delivers a bipolar output range of ±3 V.
Key features include a 70 mW typical power draw, 80 dB signal‑to‑noise ratio, and a maximum serial clock rate of 6 MHz. The AD7840 is offered in 24‑pin DIP, 28‑pin PLCC, and hermetic packages, and includes on‑chip ESD protection and a 3 V reference output capable of sourcing 500 µA.
Analog Devices AD7840 specifications
| Resolution | 14 bits |
|---|---|
| Typical SNR | 82 dB |
| Power Dissipation (max) | 100 mW |
| Typical Power Consumption | 70 mW |
| Supply Voltage | +5 V |
| Output Voltage Range | ±3 V |
| Maximum Serial Clock Rate | 6 MHz |
All Analog Devices AD7840 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical power consumption of the AD7840?
Typical power consumption is about 70 mW.
What is the maximum serial data clock rate for the AD7840?
The serial interface can run at up to 6 MHz.
What is the minimum write pulse width for the AD7840?
The minimum WR pulse width is 45 ns.
What is the maximum serial data clock rate supported?
The device can operate with a serial clock up to 6 MHz.