Key facts
- Brand
- Analog Devices
- Model
- AD7789
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-10
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ANALOG DEVICES Low Power 16-/24-Bit Sigma-Delta ADC AD7788/AD7789 handbook
The AD7788 and AD7789 are low‑power, low‑noise sigma‑delta analog‑to‑digital converters designed for precision measurement applications such as smart transmitters, battery monitors, and weighing scales. The devices operate from a single supply and include an internal clock, offering simultaneous 50 Hz/60 Hz line‑frequency rejection.
Key features include 16‑bit (AD7788) or 24‑bit (AD7789) resolution, 1 pA power‑down current, a 10‑lead MSOP package, and a 3‑wire serial interface compatible with SPI, QSPI, Microwire, and DSP protocols. Detailed specifications, timing characteristics, and pin functions are provided for designers.
Analog Devices AD7789 specifications
| Resolution (AD7788) | 16‑bit |
|---|---|
| Resolution (AD7789) | 24‑bit |
| Power‑down current | 1 pA max |
| Output update rate | 16.6 Hz nominal |
| Integral nonlinearity | 3.5 ppm typical |
Source: ANALOG DEVICES Low Power 16-/24-Bit Sigma-Delta ADC AD7788/AD7789 handbook
All Analog Devices AD7789 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the output update rate of the AD7788/AD7789?
The devices update their output at a nominal rate of 16.6 Hz.
From: ANALOG DEVICES Low Power 16-/24-Bit Sigma-Delta ADC AD7788/AD7789 handbook
How much current does the device draw in power‑down mode?
In power‑down mode the current consumption is only 1 pA maximum.
From: ANALOG DEVICES Low Power 16-/24-Bit Sigma-Delta ADC AD7788/AD7789 handbook
What supply voltage range does the AD7788/AD7789 support?
The devices operate from 2.5 V to 5.25 V.
What is the RMS noise performance of these ADCs?
Both parts have an RMS noise of 1.5 pV.