Key facts
- Brand
- Analog Devices
- Model
- AD7879/AD7889
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- EN · ZH
- Last added
- 2012-03-23
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Analog Devices AD7879/AD7889 Low Voltage Controller for Touch Screens Datasheet
The AD7879/AD7889 series are 12‑bit successive‑approximation ADCs designed for 4‑wire resistive touch‑screen interfaces. They operate from a single 1.6 V to 3.6 V supply, provide up to 105 kSPS throughput, and include programmable median and averaging filters, temperature and touch‑pressure measurement, and a shutdown mode drawing less than 6 µA.
Typical applications include personal digital assistants, handheld devices, point‑of‑sale terminals, medical devices, and cell phones. The devices are offered in 12‑ball WLCSP and 16‑lead LFCSP packages and support both SPI and I²C serial interfaces.
Analog Devices AD7879/AD7889 specifications
| Supply voltage (VCC) | 1.6 V to 3.6 V |
|---|---|
| Resolution | 12 bits |
| Throughput rate | 105 kSPS |
| Shutdown current | ≤ 6 µA |
| Operating temperature range | −40 °C to +85 °C |
| Analog input voltage range | 0 V to VCC |
Source: Analog Devices AD7879/AD7889 Low Voltage Controller for Touch Screens Datasheet
All Analog Devices AD7879/AD7889 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the supply voltage range for the AD7879/AD7889?
The device operates from 1.6 V up to 3.6 V.
From: Analog Devices AD7879/AD7889 Low Voltage Controller for Touch Screens Datasheet
Which serial interfaces are supported by the AD7879/AD7889?
Both SPI and I²C interfaces are supported, with separate pin configurations for each mode.
From: Analog Devices AD7879/AD7889 Low Voltage Controller for Touch Screens Datasheet
What supply voltage range does the AD7879/AD7889 require?
The devices operate from a single supply of 1.6 V to 3.6 V.
From: Analog Devices AD7879/AD7889 Low‑Voltage Touch‑Screen Controller Data Sheet
What is the maximum data‑conversion rate?
The ADC can convert up to 105 kSPS.
From: Analog Devices AD7879/AD7889 Low‑Voltage Touch‑Screen Controller Data Sheet