LTC2321CUFD-16#PBF

The LTC2321-16 is a low noise, high speed dual 16-bit successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2321-16 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2321-16 achieves ±4LSB INL typical, no missing codes at 16 bits and 81dB SNR. The LTC2321-16 has an onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference. The LTC2321-16 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 2Msps per channel throughput with no cycle latency makes the LTC2321-16 ideally suited for a wide variety of high speed applications. The LTC2321-16 dissipates only 31mW per channel and offers nap and sleep modes to reduce the power consumption to 5μW for further power savings during inactive periods.

Applications

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

Key features

• 2Msps Throughput Rate
• ±4LSB INL (Typ)
• Guaranteed 16-Bit, No Missing Codes
• 8VP-P Differential Inputs with Wide Input Common Mode Range
• 81dB 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
• 1.8 to 2.5V I/O Voltages
• CMOS or LVDS SPI-Compatible Serial I/O
• Power Dissipation 31mW/Ch (Typ)
• Small 28-Lead (4mm × 5mm) QFN Package