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LTC2385-18 - 18-Bit, 5Msps SAR ADC

The LTC®2385-18 is a low noise, high speed, 18-bit 5Msps successive approximation register (SAR) ADC ideally suited for a wide range of applications. The combination of excellent linearity and wide dynamic range makes the LTC2385-18 ideal for high speed imaging and instrumentation applications. No-latency operation provides a unique solution for high speed control loop applications. The very low distortion at high input frequencies enables communications applications requiring wide dynamic range and significant signal bandwidth.

To support high speed operation while minimizing the number of data lines, the LTC2385-18 features a serial LVDS digital interface. The LVDS interface has one-lane and two-lane output modes, allowing the user to optimize the interface data rate for each application.

Features 5Msps Throughput Rate No Pipeline Delay, No Cycle Latency 95.7dB SNR (Typ) at fIN = 1MHz 101dB SFDR (Typ) at fIN = 1MHz Nyquist Sampling Up to 2.5MHz Input Guaranteed 18-Bit, No Missing Codes ±1.5LSB INL (Max) 8.192VP-P Differential Inputs 5V and 2.5V Supplies Internal 20ppm/°C (Max) Reference Serial LVDS Interface 78mW Power Dissipation 32-Pin (5mm × 5mm) QFN Package Typical Application

Applications High Speed Data Acquisition Imaging Communications Control Loops Instrumentation ATE Packaging

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