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LTC2259-14 Dataheets PDF



Part Number LTC2259-14
Manufacturers Linear Technology
Logo Linear Technology
Description Ultralow Power 1.8V ADCs
Datasheet LTC2259-14 DatasheetLTC2259-14 Datasheet (PDF)

Features n 73.4dB SNR n 85dB SFDR n Low Power: 127mW/106mW/89mW 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.

  LTC2259-14   LTC2259-14


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Features n 73.4dB SNR n 85dB SFDR n Low Power: 127mW/106mW/89mW 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 LTC2261-14 LTC2260-14/LTC2259-14 14-Bit, 125/105/80Msps Ultralow Power 1.8V ADCs Description The LTC®2261-14/LTC2260-14/LTC2259-14 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 73.4dB SNR and 85dB 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 1.2LSBRMS. The digital outputs can be either full-rate CMOS, doubledata 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 – 1.8V VDD 14-BIT PIPELINED ADC CORE CORRECTION LOGIC CLOCK/DUTY CYCLE CONTROL GND 125MHz CLOCK OUTPUT DRIVERS 1.2V TO 1.8V OVDD D13 • CMOS • OR • LVDS D0 OGND 226114 TA01a AMPLITUDE (dBFS) 2-Tone FFT, fIN = 70MHz and 75MHz 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 0 10 20 30 40 50 60 FREQUENCY (MHz) 226114 TA01b For more information www.linear.com/LTC2261-14 226114fc 1 LTC2261-14 LTC2260-14/LTC2259-14 Absolute Maximum Ratings (Notes 1, 2) Supply Voltages (VDD, OVDD)........................ –0.3V to 2V Analog Input Voltage (AIN+, AIN–, PAR/SER, SENSE) (Note 3)........... –0.3V to (VDD + 0.2V) Digital Input Voltage (ENC+, ENC–, CS, SDI, SCK) (Note 4)..................................... –0.3V to 3.9V SDO (Note 4).............................................. –0.3V to 3.9V Digital Output Voltage................. –0.3V to (OVDD + 0.3V) Operating Temperature Range: LTC2261C, LTC2260C, LTC2259C............. 0°C to 70°C LTC2261I, LTC2260I, LTC2259I............–40°C to 85°C Storage Temperature Range................... –65°C to 150°C Pin Configurations FULL-RATE CMOS OUTPUT MODE TOP VIEW DOUBLE DATA RATE CMOS OUTPUT MODE TOP VIEW VDD SENSE VREF VCM OF DNC D13 D12 D11 D10 VDD SENSE VREF VCM OF DNC D12_13 DNC D10_11 DNC AIN+ 1 AIN– 2 GND 3 REFH 4 40 39 38 37 36 35 34 33 32 31 30 D9 29 D8 28 CLKOUT+ 27 CLKOUT– REFH 5 REFL 6 41 26 OVDD GND 25 OGND REFL 7 24 D7 PAR/SER 8 23 D6 VDD 9 VDD 10 22 D5 21 D4 11 12 13 14 15 16 17 18 19 20 AIN+ 1 AIN– 2 GND 3 REFH 4 40 39 38 37 36 35 34 33 32 31 30 D8_9 29 DNC 28 CLKOUT+ 27 CLKOUT– REFH 5 REFL 6 41 26 OVDD GND 25 OGND REFL 7 24 D6_7 PAR/SER 8 23 DNC VDD 9 VDD 10 22 D4_5 21 DNC 11 12 13 14 15 16 17 18 19 20 ENC+ ENC– CS SCK SDI SDO D0 D1 D2 D3 ENC+ ENC– CS SCK SDI SDO DNC D0_1 DNC D2_3 UJ PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN TJMAX = 150°C, θJA = 32°C/W EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB UJ PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN TJMAX = 150°C, θJA = 32°C/W EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB DOUBLE DATA RATE LVDS OUTPUT MODE TOP VIEW VDD SENSE VREF VCM OF+ OF– D12_13+ D12_13– D10_11+ D10_11– 2 AIN+ 1 AIN– 2 GND 3 REFH 4 40 39 38 37 36 35 34 33 32 31 30 D8_9+ 29 D8_9– 28 CLKOUT+ 27 CLKOUT– REFH 5 REFL 6 41 26 OVDD GND 25 OGND REFL 7 24 D6_7+ PAR/SER 8 23 D6_7– VDD 9 VDD 10 22 D4_5+ 21 D4_5– 11 12 13 14 15 16 17 18 19 20 ENC+ ENC– CS SCK SDI SDO D0_1– D0_1+ D2_3– D2_3+ UJ PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN TJMAX = 150°C, θJA = 32°C/W EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB For more information www.linear.com/LTC2261-14 226114fc LTC2261-14 LTC2260-14/LTC2259-14 Order Information LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2261CUJ-14#PBF LTC2261CUJ-14#TRPBF LTC2261UJ-14 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C LTC2261IUJ-14#PBF LTC2261IUJ-14#TRPBF LTC2261UJ-14 40-Lead (6mm × 6mm) Plastic QFN –40°C to 85°C LTC2260CUJ-14#PBF LTC2260CUJ-14#TRPBF LTC2260UJ-14 40.


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