ADI LTC2377IDE-16#PBF

The LTC2377-16 has a high speed SPI-compatible 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 LTC2377-16 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2377-16 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate. The LTC2377-16 features a unique digital gain compression (DGC) function, which eliminates the driver amplifier’s negative supply while preserving the full resolution of the ADC. When enabled, the ADC performs a digital scaling function that maps zero-scale code from 0V to 0.1·VREF and full-scale code from VREF to 0.9·VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5 to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply.

• 500ksps Throughput Rate
• ±0.5LSB INL (Max)
• Guaranteed 16-Bit No Missing Codes
• Low Power: 6.8mW at 500ksps, 6.8µW at 500sps
• 97dB SNR (Typ) at fIN = 2kHz
• –123dB THD (Typ) at fIN = 2kHz
• Digital Gain Compression (DGC)
• Guaranteed Operation to 125°C
• 2.5V Supply
• Fully Differential Input Range ±VREF
• VREF Input Range from 2.5V to 5.1V
• No Pipeline Delay, No Cycle Latency
• 1.8V to 5V I/O Voltages
• SPI-Compatible Serial I/O with Daisy-Chain Mode
• Internal Conversion Clock
• 16-Lead MSOP and 4mm × 3mm DFN Packages

• Medical Imaging
• High Speed Data Acquisition
• Portable or Compact Instrumentation
• Industrial Process Control
• Low Power Battery-Operated Instrumentation
• ATE