The document describes a 18-bit/16-bit no-latency, 2.5Msps SAR ADC with wide ±4.096V fully differential inputs, maximizing dynamic range to achieve 100dB SNR performance. It has pin-configurable input ranges of ±4.096V, ±2.048V or 0V to 4.096V, precision DC specifications, and a precision internal reference and reference buffer. The ADC is suitable for various applications.
The LTC2389-18 is a high-speed Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) featuring 18-bit or 16-bit resolution and no latency. It supports a maximum sampling rate of 2.5Msps with an Signal-to-Noise Ratio (SNR) of up to 100dB.
| Resolution | 18-Bit/16-Bit |
|---|---|
| Sampling Rate | 2.5Msps |
| SNR | 100dB |
| Power Consumption (18-Bit) | 162.5mW |
The device supports a maximum sampling rate of 2.5Msps.
The 18-bit configuration consumes 162.5mW of power.
The fully differential input range can reach a maximum of +4.096V.