The AD1895 is a 24-bit, high-performance, single-chip, second-generation asynchronous sample rate converter. It offers improved performance and additional features, including a THD + N range of -115 dB to -122 dB, 128 dB dynamic range, 192 kHz sampling frequencies, etc.
The AD1895 is a 24‑bit, high‑performance, single‑chip asynchronous sample‑rate converter from Analog Devices. It supports flexible 3‑wire serial interfaces, multiple sample‑rate ratios (7.75:1 to 1:8), and master modes of 256×, 512×, or 768×. Features include automatic jitter attenuation, hardware‑controllable soft mute, and a 64‑tap FIR filter.
The device is supplied in a 28‑lead SSOP package, operates from 3.3 V core and 5 V I/O supplies, and is rated for -40 °C to +105 °C operation. Detailed specifications cover digital performance, timing, power consumption, and pin functions.
| Resolution | 24 Bits |
|---|---|
| Maximum Sample Rate | 192 kHz |
| Dynamic Range (A‑Weighted) | 128 dB |
| Core Supply Voltage (VDD_CORE) | 3.3 V |
| I/O Supply Voltage (VDD_IO) | 5 V |
| Package | 28‑Lead SSOP (RS‑28) |
| Operating Temperature Range | -40 °C to +105 °C |
| Input Voltage High | 2.4 V |
| Input Voltage Low | 0.8 V |
The AD1895 supports sample rates up to 192 kHz.
It is offered in a 28‑lead SSOP (RS‑28) package.
The device provides a 128 dB A‑weighted dynamic range.