LTC2377-20 Datasheet | Linear Technology

Features nn 500ksps Throughput Rate nn ±0.5ppm INL (Typ) nn Guaranteed 20-Bit No Missing Codes nn Low Power: 10.5m W at 500ksps, 10.5µW at 500sps nn 104d B SNR (Typ) at f IN = 2k Hz nn - 125d B THD (Typ) at f IN = 2k Hz nn Digital Gain pression (DGC) nn Guaranteed Operation to 85°C nn 2.5V Supply nn Fully Differential Input Range ±VREF nn VREF Input Range from 2.5V to 5.1V nn No Pipeline Delay, No Cycle Latency nn 1.8V to 5V I/O Voltages nn SPI-patible Serial I/O with Daisy-Chain Mode nn Internal Conversion Clock nn 16-Lead MSOP and 4mm × 3mm DFN Packages APPLICATIONS nn Medical Imaging nn High Speed Data Acquisition nn Portable or pact Instrumentation nn Industrial Process Control nn Low Power Battery-Operated Instrumentation nn ATE L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Soft Span is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Patents Pending. Protected by U.S. Patents, including 7705765, 7961132, 8319673. LTC2377-20 20-Bit, 500ksps, Low Power SAR ADC with 0.5ppm INL DESCRIPTION The LTC®2377-20 is a low noise, low power, high speed 20-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2377-20 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2377-20 consumes only 10.5m W and achieves ±2ppm INL maximum, no missing codes at 20 bits with 104d B SNR. The LTC2377-20 has a high speed SPI-patible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 500ksps throughput with no cycle latency makes the LTC2377-20 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2377-20 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate. The LTC2377-20 Features a unique digital...