The AD7655 is a low-cost, 4-channel, 16-bit, 1 MSPS PulSAR® ADC. It features 2 track-and-hold amplifiers, an analog input voltage range of 0V to 5V, and a parallel/serial 5V/3V interface, among other characteristics.
The AD7655 PulSAR ADC from Analog Devices provides four simultaneous‑sampling channels with 16‑bit resolution. It operates from a single 5 V supply and offers two throughput modes: 1 MSPS in Normal mode and 888 kSPS in Impulse mode for low‑power applications.
The device includes dual track‑and‑hold amplifiers, parallel and serial interfaces compatible with 3 V and 5 V logic, and a range of package options (48‑lead LQFP or LFCSP). Detailed specifications, pin configurations, timing diagrams, and application notes are provided throughout the document.
| Resolution | 16 Bits |
|---|---|
| Analog Input Voltage Range | 0 V to 5 V |
| Throughput Rate (Normal mode) | 1 MSPS |
| Power Dissipation (typical) | 120 mW |
| Package Options | 48‑lead LQFP or 48‑lead LFCSP |
The AD7655 can sample at up to 1 MSPS in Normal mode.
The device operates from a single 5 V supply.
Typical power dissipation is 120 mW at 1 MSPS.
It is offered in a 48‑lead LQFP or a 48‑lead LFCSP.