LTC2415 Series

24-Bit No Latency Delta Sigma ADC with Differential Input and Differential Reference

Catalog

24-Bit No Latency Delta Sigma ADC with Differential Input and Differential Reference

Part	Data Interface	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Number of A/D Converters	Number of Bits	Input Type	Configuration	Sampling Rate (Per Second)	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Mounting Type	Supplier Device Package	Number of Inputs	Package / Case	Package / Case	Package / Case	Architecture	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]
Analog Devices LTC2415CGN#PBF	SPI	5.5 V	2.7 V	1	24	Differential	ADC	15 Per Second	70 °C	0 °C	External	Surface Mount	16-SSOP	1	0.154 in	16-SSOP	3.9 mm	Sigma-Delta	2.7 V	5.5 V
Analog Devices LTC2415-1IGN#TRPBF	SPI	5.5 V	2.7 V	1	24	Differential	ADC	13.75	85 °C	-40 °C	External	Surface Mount	16-SSOP	1	0.154 in	16-SSOP	3.9 mm	Sigma-Delta	2.7 V	5.5 V
Analog Devices LTC2415CGN#TRPBF	SPI	5.5 V	2.7 V	1	24	Differential	ADC	15 Per Second	70 °C	0 °C	External	Surface Mount	16-SSOP	1	0.154 in	16-SSOP	3.9 mm	Sigma-Delta	2.7 V	5.5 V
Analog Devices LTC2415IGN#PBF	SPI	5.5 V	2.7 V	1	24	Differential	ADC	15 Per Second	85 °C	-40 °C	External	Surface Mount	16-SSOP	1	0.154 in	16-SSOP	3.9 mm	Sigma-Delta	2.7 V	5.5 V
Analog Devices LTC2415-1IGN#PBF	SPI	5.5 V	2.7 V	1	24	Differential	ADC	13.75	85 °C	-40 °C	External	Surface Mount	16-SSOP	1	0.154 in	16-SSOP	3.9 mm	Sigma-Delta	2.7 V	5.5 V

Catalog

24-Bit No Latency Delta Sigma ADC with Differential Input and Differential Reference

Key Features

• 2x Speed Up Version of the LTC2410/LTC2413: 15Hz Output Rate, 50Hz or 60Hz Notch—LTC2415; 13.75Hz Output Rate, Simultaneous 5

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

• 2ppm INL, No Missing Codes

• 2.5ppm Gain Error

• 0.23ppm Noise

• Single Conversion Settling Time for Multiplexed Applications

• Internal Oscillator—No External Components Required

• 24-Bit ADC in Narrow SSOP-16 Package (SO-8 Footprint)

• Single Supply 2.7V to 5.5V Operation

• Low Supply Current (200µA) and Auto Shutdown

Description

The LTC2415/LTC2415-1 are micropower 24-bit differential ∆Σ analog to digital converters with integrated oscillator, 2ppm INL, 0.23ppm RMS noise and a 2.7V to 5.5V supply range. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single pin, the LTC2415 can be configured for better than 110dB input differential mode rejection at 50Hz or 60Hz ±2%, or it can be driven by an external oscillator for a user defined rejection frequency. The LTC2415-1 can be configured for better than 87dB input differential mode rejection over the range of 49Hz to 61.2Hz (50Hz and 60Hz ±2% simultaneously). The internal oscillator requires no external frequency setting components.The converters accept any external differential reference voltage from 0.1V to VCCfor flexible ratiometric and remote sensing measurement configurations. The full-scale differential input range is from –0.5VREFto 0.5VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set anywhere within the GND to VCCrange of the LTC2415/LTC2415-1. The DC common mode input rejection is better than 140dB.The LTC2415/LTC2415-1 communicate through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE™protocols.ApplicationsDirect Sensor DigitizerWeight ScalesDirect Temperature MeasurementGas AnalyzersStrain Gage TransducersInstrumentationData AcquisitionIndustrial Process Control6-Digit DVMs