LTC2321-14 Series

Dual, 12-Bit + Sign, 2Msps Differential Input ADC with Wide Input Common Mode Range

Catalog

Dual, 12-Bit + Sign, 2Msps Differential Input ADC with Wide Input Common Mode Range

Part	Data Interface	Ratio - S/H:ADC	Number of Inputs	Input Type	Operating Temperature [Max]	Operating Temperature [Min]	Configuration	Architecture	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital	Voltage - Supply, Digital [Min]	Reference Type	Supplier Device Package	Sampling Rate (Per Second)	Number of A/D Converters	Package / Case	Number of Bits	Features	Mounting Type	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog
Analog Devices LTC2321IUFD-12#PBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	85 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	12 bits	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321IUFD-16#PBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	85 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	16	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321HUFD-12#PBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	125 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	12 bits	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321IUFD-16#TRPBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	85 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	16	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321HUFD-12#TRPBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	125 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	12 bits	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321HUFD-16#PBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	125 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	16	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321HUFD-14#TRPBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	125 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	14	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321CUFD-12#PBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	70 °C	0 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	12 bits	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321CUFD-16#PBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	70 °C	0 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	16	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V
Analog Devices LTC2321IUFD-14#TRPBF	LVDS - Serial Serial	1:1	2	Differential Pseudo-Differential	85 °C	-40 °C	S/H-ADC	SAR	3.47 V	5 V	3.13 V	External Internal	28-QFN (4x5)	2M	2	28-WFQFN Exposed Pad	14	Simultaneous Sampling	Surface Mount	3.13 V	3.47 V	5 V

Catalog

Dual, 12-Bit + Sign, 2Msps Differential Input ADC with Wide Input Common Mode Range

Key Features

• 2Msps Throughput Rate

• ±1LSB INL (Typ)

• Guaranteed 14-Bit, No Missing Codes

• 8VP-PDifferential Inputs with Wide Input Common Mode Range

• 80dB SNR (Typ) at fIN= 500kHz

• –90dB THD (Typ) at fIN= 500kHz

• No-Cycle Latency

• Guaranteed Operation to 125°C

• Single 3.3V or 5V Supply

• Low Drift (20ppm/°C Max) 2.048V or 4.096V Internal Reference

• 1.8V to 2.5V I/O Voltages

• CMOS or LVDS SPI-Compatible Serial I/O

• Power Dissipation 33mW/Ch (Typ)

• Small 28-Lead (4mm × 5mm) QFN Package

Description

The LTC2321-12 is a low noise, high speed dual 12-bit + sign successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2321-12 has an 8VP-Pdifferential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2321-12 achieves ±0.5LSB INL typical, no missing codes at 12 bits and 73dB SNR.The LTC2321-12 has an onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference. The LTC2321-12 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 2Msps per channel throughput with zero cycle latency makes the LTC2321-12 ideally suited for a wide variety of high speed applications. The LTC2321-12 dissipates only 30mW per channel and offers nap and sleep modes to reduce the power consumption to 5μW for further power savings during inactive periods.BitsLTC2321-1212LTC2321-1414LTC2321-1616ApplicationsHigh Speed Data Acquisition SystemsCommunicationsRemote Data AcquisitionImagingOptical NetworkingAutomotiveMultiphase Motor Control