LTC2418 Series

8-/16-Channel 24-Bit No Latency ∆Σ™ADCs

Catalog

8-/16-Channel 24-Bit No Latency ∆Σ™ADCs

Part	Mounting Type	Number of Inputs	Configuration	Data Interface	Package / Case	Number of A/D Converters	Architecture	Number of Bits	Sampling Rate (Per Second)	Input Type	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Supplier Device Package	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Reference Type	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices LTC2418IGN#PBF	Surface Mount	16 8	MUX-ADC	SPI	28-SSOP	1	Sigma-Delta	24	7.5 Per Second	Differential Single Ended	2.7 V	5.5 V	28-SSOP	5.5 V	2.7 V	External	85 °C	-40 °C
Analog Devices LTC2418IGN#TRPBF	Surface Mount	16 8	MUX-ADC	SPI	28-SSOP	1	Sigma-Delta	24	7.5 Per Second	Differential Single Ended	2.7 V	5.5 V	28-SSOP	5.5 V	2.7 V	External	85 °C	-40 °C
Analog Devices LTC2418CGN#PBF	Surface Mount	16 8	MUX-ADC	SPI	28-SSOP	1	Sigma-Delta	24	7.5 Per Second	Differential Single Ended	2.7 V	5.5 V	28-SSOP	5.5 V	2.7 V	External	70 °C	0 °C
Analog Devices LTC2418CGN#TRPBF	Surface Mount	16 8	MUX-ADC	SPI	28-SSOP	1	Sigma-Delta	24	7.5 Per Second	Differential Single Ended	2.7 V	5.5 V	28-SSOP	5.5 V	2.7 V	External	70 °C	0 °C

Catalog

8-/16-Channel 24-Bit No Latency ∆Σ™ADCs

Key Features

• 8-/16-Channel Single-Ended or 4-/8-Channel Differential Inputs (LTC2414/LTC2418)

• Low Supply Current (200µA, 4µA Autosleep)

• Differential Input and Differential Reference with GND to VCCCommon Mode Range

• 2ppm INL, No Missing Codes

• 2.5ppm Full-Scale Error and 0.5ppm Offset

• 0.2ppm Noise

• No Latency: Digital Filter Settles in a Single Cycle. Each Conversion Is Accurate, Even After a New Channel is Selected

• Single Supply 2.7V to 5.5V Operation

• Internal Oscillator—No External Components Required

• 110dB Min, 50Hz/60Hz Notch Filter

Description

The LTC2414/LTC2418 are 8-/16-channel (4-/8-differential) micropower 24-bit ∆Σ analog-to-digital converters. They operate from 2.7V to 5.5V and include an integrated oscillator, 2ppm INL and 0.2ppm RMS noise. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single pin, the LTC2414/LTC2418 can be configured for better than 110dB differential mode rejection at 50Hz or 60Hz ±2%, or they can be driven by an external oscillator for a user-defined rejection frequency. The internal oscillator requires no external frequency setting components.The LTC2414/LTC2418 accept any external differential reference voltage from 0.1V to VCCfor flexible ratiometric and remote sensing measurement applications. They can be configured to take 4/8 differential channels or 8/16 single-ended channels. The full-scale bipolar input range is from -5VREFto 0.5VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set within GND to VCC. The DC common mode input rejection is better than 140dB.The LTC2414/LTC2418 communicate through a flexible 4-wire digital interface that is compatible with SPI and MICROWIRE protocols.ApplicationsDirect Sensor DigitizerWeight ScalesDirect Temperature MeasurementGas AnalyzersStrain Gauge TransducersInstrumentationData AcquisitionIndustrial Process Control