Datasheet LTC2310-14 (Analog Devices)

LTC2310-14 14-Bit + Sign, 2Msps Differential Input ADC with Wide Input Common Mode Range
FeaTures DescripTion
n
2Msps Throughput Rate
The LTC®2310-14 is a low noise, high speed 14-bit + n
±2.5LSB INL Guaranteed
sign successive approximation register (SAR) ADC with n
Guaranteed 14-Bit, No Missing Codes
differential inputs and wide input common mode range. n
8VP-P Differential Inputs with Wide Input Common
Operating from a single 3.3V or 5V supply, the LTC2310-14
Mode Range
has an 8VP-P differential input range, making it ideal for n
82dB SNR (Typ) at fIN = 500kHz
applications which require a wide dynamic range with n
–93dB THD (Typ) at fIN = 500kHz
high common mode rejection. The LTC2310-14 achieves n
No Cycle Latency
±2.5LSB INL guaranteed, no missing codes at 14 bits and n Guaranteed Operation –40°C to 125°C 82dB SNR typical. n Single 3.3V or 5V Supply The LTC2310-14 has an onboard low drift (20ppm/°C max) n Low Drift (20ppm/°C Max) 2.048V or 4.096V Internal 2.048V or 4.096V temperature-compensated reference and Reference with 1.25V External Reference Input provides an external 1.25V buffered reference input. The n 1.8V to 2.5V I/O Voltages LTC2310-14 also has a high speed SPI-compatible serial n CMOS or LVDS SPI-Compatible Serial I/O interface that supports CMOS or LVDS. The fast 2Msps n Power Dissipation 35mW at VDD = 5V (Typ) throughput with no cycle latency makes the LTC2310-14 n Small 16-Lead (4mm × 5mm) MSOP Package ideally suited for a wide variety of high speed applications. The LTC2310-14 dissipates only 35mW with a 5V supply
applicaTions
and offers nap and sleep modes to reduce the power n High Speed Data Acquisition Systems consumption for further power savings during inactive n Communications periods. n Remote Data Acquisition L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Imaging n Optical Networking n Automotive n Multiphase Motor Control
Typical applicaTion DIFFERENTIAL INPUTS
3.3V OR 5V
32k Point FFT f NO CONFIGURATION REQUIRED SMPL = 2Msps, fIN = 500kHz IN+, IN–
1µF 0 ARBITRARY DIFFERENTIAL SNR = 82dB VDD VDD 25Ω THD = –93dB –20 AIN+ VDD REFOUT SINAD = 81.7dB 10µF SFDR = 97dB –40 LTC2310-14 0V 0V 47pF REFIN –60 10µF –80 BIPOLAR UNIPOLAR 25Ω V LVDS OR CMOS DD VDD SDO A AMPLITUDE (dBFS) IN– CONFIGURABLE –100 SCK I/O CMOS/LVDS –120 CNV 0V 0V GND OVDD 1.8V TO 2.5V –140 1µF 0 0.2 0.4 0.6 0.8 1.0 FREQUENCY (MHz) 231014 TA01a 231014 TA01b 231014f For more information www.linear.com/LTC2310-14 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Functional Block Diagram Timing Diagram Applications Information Package Description Related Parts