AD7298-1 is a 10-bit high precision low power 8-channel successive approximation ADC, working voltage is 2.8V to 3.6V, conversion rate is 1MSPS, support single-ended input, internal integration 2.5V reference voltage, support SPI interface.
The AD7298-1 from Analog Devices is a high‑speed, low‑power 8‑channel, 10‑bit successive‑approximation ADC. It operates from a single 2.8 V to 3.6 V supply and provides up to 1 MSPS conversion rate with a 20‑lead LFCSP package.
The device features an on‑chip 2.5 V reference, programmable channel sequencer, SPI‑compatible serial interface, and flexible power‑down modes. Detailed specifications, pin descriptions, timing parameters, and absolute maximum ratings are provided in the following sections.
| Resolution | 10 Bits |
|---|---|
| Signal‑to‑Noise Ratio (SNR) | 61 dB |
| Full Power Bandwidth | 30 MHz |
| Power‑down current | <10 pA |
| Supply voltage (Vop) | 2.8 V to 3.6 V |
| Maximum sampling rate | 1 MSPS |
Each input channel accepts analog voltages from 0 V to 2.5 V.
The device operates from a supply voltage of 2.8 V to 3.6 V.
The ADC can convert at up to 1 MSPS.