The AD7654 is a 16-bit, 500 kSPS PulSAR® dual, 2-channel, simultaneous sampling ADC. It features a 16-bit resolution with no missing codes, a throughput of 500 kSPS (normal mode) and 444 kSPS (impulse mode). Its INL is ±3.5 LSB max (±0.0053% of full scale), SNR is 89 dB typical @ 100 kHz, and THD is -100 dB @ +100 kHz. The AD7654 has an analog input voltage range of 0 V to 5 V, no pipeline delay, and a parallel and serial 5 V/3 V interface that is compatible with SPI®/QSPI™/MICROWIRE™/DSP. It operates from a single 5 V supply, and its typical power dissipation is 120 mW and 2.6 mW @ 10 kSPS. The AD7654 is available in 48-lead low profile quad flat package (LQFP) and 48-lead lead frame chip scale package (LFCSP), and is low cost.
The AD7654 is a 16‑bit, dual‑channel simultaneous‑sampling analog‑to‑digital converter that operates from a single 5 V supply. It features two track‑and‑hold amplifiers, a high‑speed SAR core, and both parallel and serial 2‑wire interfaces compatible with 3 V and 5 V logic. The device supports up to four input channels and offers a normal mode of 500 kSPS and a low‑power impulse mode of 444 kSPS.
The datasheet provides detailed specifications, timing diagrams, pin descriptions, absolute maximum ratings, and an ordering guide for various package options. It also includes application information for motor control, power conversion, data acquisition, and communications.
| Resolution | 16 Bits |
|---|---|
| Analog Input Voltage Range | 0 V to 5 V |
| Throughput Rate (Normal Mode) | 500 kSPS |
| Power Dissipation (Typical) | 120 mW |
| Operating Temperature Range | -40°C to +85°C |
The AD7654 can sample at up to 500 kSPS in normal mode.
It operates from a single 5 V supply (AVDD = DVDD = 5 V).
Yes, it offers a versatile parallel or 2‑wire serial interface compatible with 3 V and 5 V logic.