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LTC2258-14

Linear Technology
Part Number LTC2258-14
Manufacturer Linear Technology
Description Ultralow Power 1.8V ADCs
Published Jun 1, 2009
Detailed Description Features n 74dB SNR n 88dB SFDR n Low Power: 81mW/49mW/35mW n Single 1.8V Supply n CMOS, DDR CMOS or DDR LVDS Outputs n ...
Datasheet PDF File LTC2258-14 PDF File

LTC2258-14
LTC2258-14

Overview
Features n 74dB SNR n 88dB SFDR n Low Power: 81mW/49mW/35mW n Single 1.
8V Supply n CMOS, DDR CMOS or DDR LVDS Outputs n Selectable Input Ranges: 1VP-P to 2VP-P n 800MHz Full-Power Bandwidth S/H n Optional Data Output Randomizer n Optional Clock Duty Cycle Stabilizer n Shutdown and Nap Modes n Serial SPI Port for Configuration n Pin Compatible 14-Bit and 12-Bit Versions n 40-Pin (6mm × 6mm) QFN Package Applications n Communications n Cellular Base Stations n Software Defined Radios n Portable Medical Imaging n Multi-Channel Data Acquisition n Nondestructive Testing LTC2258-14 LTC2257-14/LTC2256-14 14-Bit, 65/40/25Msps Ultralow Power 1.
8V ADCs Description The LTC®2258-14/LTC2257-14/LTC2256-14 are sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals.
They are perfect for demanding communications applications with AC performance that includes 74dB SNR and 88dB spurious free dynamic range (SFDR).
Ultralow jitter of 0.
17psRMS allows undersampling of IF frequencies with excellent noise performance.
DC specs include ±1LSB INL (typical), ±0.
3LSB DNL (typical) and no missing codes over temperature.
The transition noise is a low 1.
13LSBRMS.
The digital outputs can be either full rate CMOS, double data rate CMOS, or double data rate LVDS.
A separate output power supply allows the CMOS output swing to range from 1.
2V to 1.
8V.
The ENC+ and ENC– inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL or CMOS inputs.
An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
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.
Typical Application ANALOG INPUT + INPUT S/H – 65MHz CLOCK CLOCK/DUTY CYCLE CONTROL 1.
8V VDD 14-BIT PIPELINED ADC CORE CORRECTION LOGIC OUTPUT DRIVERS 1.
2V TO 1.
8V OVDD D13 • CMOS • OR • LVDS...


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