Linear Technology LTC2381CMS-16#TRPBF

Description
The LTC2381-16 is a low-noise, low-power, high-speed 16-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2381-16 has a 2.5V fully differential input range. The LTC2381-16 consumes only 3.25mW and achieves 2LSB INL max, no missing codes at 16-bits and 92dB SNR.
The LTC2381-16 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 250ksps throughput with no cycle latency makes the LTC2381-16 ideally suited for a wide variety of high-speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2381-16 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.
The LTC2381-16 features a proprietary sampling architecture that enables the ADC to begin acquiring the next sample during the current conversion. The resulting extended acquisition time of 3.25μs allows the use of extremely low-power ADC drivers.

Features
16-Bit, 250ksps, Low Power SAR ADC with Serial Interface
250ksps Throughput Rate
2LSB INL (Max)
Guaranteed 16-Bit No Missing Codes
Low Power: 3.25mW at 250ksps, 13µW at 1ksps
92dB SNR (Typ) at f₁N = 20kHz
Extended Acquisition Time of 3.25ps Allows Use of Lower Power Drivers
Guaranteed Operation to 125°C 2.5V Supply
Fully Differential Input Range 2.5V
External 2.5V Reference Input
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-Pin MSOP and 4mm x 3mm DFN Packages

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