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LTC2446 Datasheet 24-Bit High Speed 8-Channel ADCs

Manufacturer: Linear Technology (now Analog Devices)

General Description

nn Five Selectable Differential Reference Inputs nn Four Differential/Eight Single-Ended Inputs nn 4-Way MUX for Multiple Ratiometric Measurements nn Up to 8kHz Output Rate (External fO) nn nn Up to 4kHz Selectable Multiplexing Rate (External Speed/Resolution: fO) 22Sµ0imV0nRuVMltRSaMnNSeooNiusoseis5ae0t /a16t.071H63zk.H8RHzezOjeOuctutpitoupntuRt Rataete with nn Guaranteed Modulator Stability and Lock-Up Immunity for any Input and Reference Conditions nn 0.0005% INL, No Missing Codes nn Autosleep Enables 20µA Operation at 6.9Hz nn nn <5µV Offset Differential I(n4p.5uVt a

Four sets of selectable differential inputs coupled with four sets of differential reference inputs allow multiple RTDs, bridges and other sensors to be digitized by a single converter.

A fifth differential reference input can be selected for any input channel not requiring ratiometric measurements (thermocouples, voltages, current sense, etc.).

Overview

LTC2446/LTC2447.

Key Features

  • 24-Bit High Speed 8-Channel ∆Σ ADCs with Selectable Multiple Reference Inputs.