• 简体中文
• English

LTC2372-16 - 16-Bit, 500ksps, 8-Channel SAR ADC with 96dB SNR

The LTC®2372-16 is a low noise, high speed, 8-channel 16-bit successive approximation register (SAR) ADC. Operating from a single 5V supply, the LTC2372-16 has a highly configurable, low crosstalk 8-channel input multiplexer, supporting fully differential, pseudo-differential unipolar and pseudo-differential bipolar analog input ranges. The LTC2372-16 achieves ±1LSB INL (maximum) in all input ranges, no missing codes at 16-bits and 96dB (fully differential)/93.5dB (pseudo-differential) SNR (typical).

The LTC2372-16 has an onboard low drift (20ppm/°C max) 2.048V temperature-compensated reference and a single-shot capable reference buffer. The LTC2372-16 also has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic through which a sequencer with a depth of 16 may be programmed. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2372-16 dissipates only 27mW and automatically naps between conversions, leading to reduced power dissipation that scales with the sampling rate. A sleep mode is also provided to reduce the power consumption of the LTC2372-16 to 300μW for further power savings during inactive periods.

Features 500ksps Throughput Rate 16-Bit Resolution with No Missing Codes 8-Channel Multiplexer with Selectable Input Range Fully Differential (±4.096V) Pseudo-Differential Unipolar (0V to 4.096V) Pseudo-Differential Bipolar (±2.048V) INL: ±1LSB (Maximum) SNR: 96dB (Fully Differential)/93.5dB (Pseudo- Differential) (Typical) at fIN = 1kHz THD: –110dB (Typical) at fIN = 1kHz Programmable Sequencer Selectable Digital Gain Compression Single 5V Supply with 1.8V to 5V I/O Voltages SPI-Compatible Serial I/O Onboard 2.048V Reference and Reference Buffer No Pipeline Delay, No Cycle Latency Power Dissipation 27mW (Typical) Guaranteed Operation to 125°C 32-Lead 5mm × 5mm QFN Package Typical Application

Applications Programmable Logic Controllers Industrial Process Control High Speed Data Acquisition Portable or Compact Instrumentation ATE Packaging

Demo Boards