LTC2341-16 Series

Dual, 18-Bit, 666ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range

Catalog

Dual, 18-Bit, 666ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range

Part	Mounting Type	Voltage - Supply, Analog	Number of A/D Converters	Data Interface	Number of Inputs	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Features	Ratio - S/H:ADC	Configuration	Input Type	Voltage - Supply, Digital	Supplier Device Package	Architecture	Number of Bits	Sampling Rate (Per Second)
Analog Devices LTC2341HUH-18#TRPBF	Surface Mount	5 V	1	LVDS - Serial SPI	2	125 °C	-40 °C	External Internal	Simultaneous Sampling	1:1	S/H-MUX-ADC	Differential	5 V	32-QFN (5x5)	SAR
Analog Devices LTC2341CUH-16#PBF	Surface Mount	5 V	1	LVDS - Serial SPI	2	70 °C	0 °C	External Internal	Simultaneous Sampling	1:1	S/H-MUX-ADC	Differential	5 V	32-QFN (5x5)	SAR	16	666k
Analog Devices LTC2341CUH-16#TRPBF	Surface Mount	5 V	1	LVDS - Serial SPI	2	70 °C	0 °C	External Internal	Simultaneous Sampling	1:1	S/H-MUX-ADC	Differential	5 V	32-QFN (5x5)	SAR	16	666k
Analog Devices LTC2341IUH-16#TRPBF	Surface Mount	5 V	1	LVDS - Serial SPI	2	85 °C	-40 °C	External Internal	Simultaneous Sampling	1:1	S/H-MUX-ADC	Differential	5 V	32-QFN (5x5)	SAR	16	666k
Analog Devices LTC2341HUH-16#TRPBF	Surface Mount	5 V	1	LVDS - Serial SPI	2	125 °C	-40 °C	External Internal	Simultaneous Sampling	1:1	S/H-MUX-ADC	Differential	5 V	32-QFN (5x5)	SAR	16	666k
Analog Devices LTC2341IUH-18#TRPBF	Surface Mount	5 V	1	LVDS - Serial SPI	2	85 °C	-40 °C	External Internal	Simultaneous Sampling	1:1	S/H-MUX-ADC	Differential	5 V	32-QFN (5x5)	SAR	16	666k

Catalog

Dual, 18-Bit, 666ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range

Key Features

• 666ksps per Channel Throughput

• Two Simultaneous Sampling Channels

• ±1.25LSB INL (Maximum)

• Guaranteed 16-Bit, No Missing Codes

• Differential, Wide Common Mode Range Inputs

• Per-Channel SoftSpan Input Ranges:±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V±5V, 0V to 5V, ±2.5V, 0V to 2.5V

• ±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V

• ±5V, 0V to 5V, ±2.5V, 0V to 2.5V

• 93.4dB Single-Conversion SNR (Typical)

• −114dB THD (Typical) at fIN= 2kHz

• 105dB CMRR (Typical) at fIN= 200Hz

• Rail-to-Rail Input Overdrive Tolerance

• Guaranteed Operation to 125°C

• Integrated Reference and Buffer (4.096V)

• SPI CMOS (1.8V to 5V) and LVDS Serial I/O

• Internal Conversion Clock, No Cycle Latency

• 74mW Power Dissipation (Typical)

• 32-Lead (5mm × 5mm) QFN Package

Description

The LTC2341-16 is a 16-bit, low noise 2-channel simultaneous sampling successive approximation register (SAR) ADC with differential, wide common mode range inputs. Operating from a 5V supply and using the internal reference and buffer, both channels of this SoftSpan™ADC can be independently configured on a conversion-by-conversion basis to accept ±4.096V, 0V to 4.096V, ±2.048V, or 0V to 2.048V signals. One channel may also be disabled to increase throughput on the other channel.The wide input common mode range and 105dB CMRR of the LTC2341-16 analog inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. This input signal flexibility, combined with ±1.25LSB INL, no missing codes at 16 bits, and 93.4dB SNR, makes the LTC2341-16 an ideal choice for many applications requiring wide dynamic range.The LTC2341-16 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces. Either one or two lanes of data output may be employed in CMOS mode, allowing the user to optimize bus width and throughput.ApplicationsProgrammable Logic ControllersIndustrial Process ControlMedical ImagingHigh Speed Data Acquisition