The AD7768/AD7768-4 is an 8‑channel/4‑channel 24‑bit Σ‑Δ ADC with selectable power modes, up to 110.8 kHz bandwidth and integrated digital filters.
The AD7768 (8‑channel) and AD7768‑4 (4‑channel) are synchronous‑sampling Σ‑Δ ADCs that provide high‑precision AC and DC performance. They offer three power‑mode options—Fast, Mid‑speed and Eco—allowing designers to trade off data‑rate, bandwidth and power consumption.
The devices feature programmable digital filters (wide‑band and sinc5), CRC‑checked SPI data interface, and a 64‑pin LQFP package. Typical applications include data‑acquisition systems, instrumentation, industrial control, audio test, vibration monitoring, power‑quality analysis and medical equipment. This manual is written in Chinese.
| Maximum output data rate (ODR) per channel | 256 kSPS |
|---|---|
| Maximum input bandwidth (‑3 dB) | 110.8 kHz |
| Power consumption per channel (Fast mode) | 51.5 mW |
| Package | 64‑pin LQFP |
Three modes are offered: Fast (256 kSPS, 110.8 kHz BW, 51.5 mW per channel), Mid‑speed (128 kSPS, 55.4 kHz BW, 27.5 mW per channel) and Eco (32 kSPS, 13.8 kHz BW, 9.375 mW per channel).
The device achieves a dynamic range of up to 108 dB.
It is offered in a 64‑pin thin‑profile quad flat‑pack (LQFP) measuring 10 mm × 10 mm.