8-Channel SAR ADC - Analog Devices
Description
LTC2373-16 16-Bit, 1Msps, 8-Channel SAR ADC with 96dB SNR
Features
n 1Msps Throughput Rate n 16-Bit Resolution with No Missing Codes n 8-Channel Multiplexer with Selectable Input Range n Fully Differential (±4.
096V) n Pseudo-Differential Unipolar (0V to 4.
096V) n Pseudo-Differential Bipolar (±2.
048V) n INL: ±1LSB (Maximum) n SNR: 96dB (Fully Differential)/93.
4dB (Pseudo-
Differential) (Typical) at fIN = 1kHz n THD: –110dB (Typical) at fIN = 1kHz n Programmable Sequencer n Selectable Digital Gain Compression n Single 5V Supply with 1.
8V to 5V I/O Voltages n SPI-Compatible Serial I/O n Onboard 2.
048V Reference and Reference Buffer n No Pipeline Delay, No Cycle Latency n Power Dissipation 40mW (Typical) n Guaranteed Operation to 125°C n 32-Lead 5mm × 5mm QFN Package
Applications
n Programmable Logic Controllers n Industrial Process Control n High Speed Data Acquisition n Portable or Compact Instrumentation n ATE
Description
The LTC®2373-16 is a low noise, high speed, 8-channel 16-bit successive approximation register (SAR) ADC.
Operating from a single 5V supply, the LTC2373-16 has a highly configurable, low crosstalk 8-channel input multiplexer, supporting fully differential, pseudo-differential unipolar and pseudo-differential bipolar analog input ranges.
The LTC2373-16 achieves ±1LSB INL (maximum) in all input ranges, no missing codes at 16-bits and 96dB (fully differential)/ 93.
4dB (pseudo-differential) SNR (typical).
The LTC2373-16 has an onboard low drift (20ppm/°C max) 2.
048V temperature-compensated reference and a singleshot capable reference buffer.
The LTC2373-16 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 LTC2373-16 dissipates only 40mW and automatically naps between conversions, leading to reduced power dissipation that sc...
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