AD7938-6 is an 8-channel, 625 kSPS, 12-bit parallel ADC with a sequencer from Analog Devices. It has an accurate on-chip 2.5 V reference, an input bandwidth of 50 kHz, and supports single-ended, differential, and pseudo-differential inputs. It also supports word/byte modes and has a power consumption of 3.6 mW/7.5 mW. It is packaged in a 32-lead LFCSP and TQFP.
The AD7938-6 is a 12‑bit, high‑speed, low‑power successive‑approximation ADC with eight analog input channels and a built‑in sequencer. It operates from a single 2.7 V to 5.25 V supply and offers up to 625 kSPS throughput while consuming only a few milliwatts.
The document provides functional block diagrams, detailed specifications, timing parameters, absolute maximum ratings, pin descriptions, power‑mode options, and application hints such as grounding and PCB layout recommendations. It also includes typical performance curves, reference information, and an ordering guide.
| Throughput rate | 625 kSPS |
|---|---|
| Power consumption (3 V supply) | 3.6 mW max |
| Number of analog input channels | 8 |
| Supply voltage range | 2.7 V to 5.25 V |
| On‑chip reference voltage | 2.5 V |
The device can sample up to 625 kSPS.
It provides eight analog input channels with a sequencer.
The maximum power consumption is 3.6 mW.
It operates from 2.7 V to 5.25 V.