LTC2321-12

PRODUCTION

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

Part Models: 6
1ku List Price: Starting From $5.90

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Part Details

2Msps Throughput Rate
±0.5LSB INL (Typ)
Guaranteed 12-Bit, No Missing Codes
8V_P-P Differential Inputs with Wide Input Common Mode Range
73dB SNR (Typ) at f_IN = 500kHz
–85dB THD (Typ) at f_IN = 500kHz
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 30mW/Ch (Typ)
Small 28-Lead (4mm × 5mm) QFN Package

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 8V_P-P differential 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.


	Bits
LTC2321-12	12
LTC2321-14	14
LTC2321-16	16

Applications

High Speed Data Acquisition Systems
Communications
Remote Data Acquisition
Imaging
Optical Networking
Automotive
Multiphase Motor Control

Part Models: 6
1ku List Price: Starting From $5.90

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC2321CUFD-12#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC2321CUFD-12#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC2321HUFD-12#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC2321HUFD-12#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC2321IUFD-12#PBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC2321IUFD-12#TRPBF	28-Lead QFN (4mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products
		PCN21_0269_Form Material_Report Detailed Change Description Qualification Results Summary
LTC2321CUFD-12#PBF	PRODUCTION
LTC2321CUFD-12#TRPBF	PRODUCTION
LTC2321HUFD-12#PBF	PRODUCTION
LTC2321HUFD-12#TRPBF	PRODUCTION
LTC2321IUFD-12#PBF	PRODUCTION
LTC2321IUFD-12#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Evaluation Software 2

LinearLab Tools

A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

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Tools & Simulations

IBIS Model 2

Evaluation Kits

LTC2321-12 Demo Board | Dual, 12-Bit, 2Msps True Differential Input Serial SAR ADC (Requires DC890)

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Product Details

Demonstration circuit 1996A features the LTC2323 family. With up to 5Msps, these differential, dual channel, 16-bit, serial, high speed successive approximation register (SAR) ADCs are available in a 28-lead QFN package. The LTC2323 family has an internal 20ppm/°C reference and an SPI-compatible serial interface that supports CMOS and LVDS logic. Note the demo board is configured for CMOS operation by default; see the note under JP3 for LVDS operation. The demo manual refers to the LTC2323, but applies to all members of the family, the only difference being the sample rate and the number of bits.