This file introduces the features and characteristics of the AD7729 analog device, including working voltage, interface type, AD conversion rate, digital filter, output code format, etc.
The AD7729 is a monolithic 3 V CMOS dual sigma‑delta ADC that provides two 15‑bit channels (I and Q) with on‑chip digital filtering and an auxiliary 10‑bit DAC for functions such as automatic gain control. It is supplied in 28‑lead TSSOP or SOIC packages and is intended for applications like GSM base stations and pagers.
Key specifications include a 13 MSPS input sample rate, 270.83 kHz output word rate, 2.7–3.3 V supply range, and an operating temperature range of –40 °C to +105 °C. Detailed pin configurations, timing diagrams, and register maps are provided for system integration.
| Supply Voltage (AVDD/DVDD) | 2.7–3.3 V |
|---|---|
| Resolution | 15 Bits |
| Output Word Rate | 270.83 kHz |
| Input Sample Rate | 13 MSPS |
| Operating Temperature Range | –40 °C to +105 °C |
The analog and digital supply pins (AVDD1, AVDD2, DVDD1, DVDD2) accept 2.7 V to 3.3 V.
The device delivers data at up to 270.83 kHz output word rate.
The AD7729 can operate from –40 °C up to +105 °C.
Each ADC channel provides 15‑bit resolution.