LTC2208

LTC2152-14/ LTC2151-14/LTC2150-14 Electrical Specifications Subject to Change 14-Bit 250Msps/ 210Msps/170Msps ADCs FEATURES n n n n n n n n n n n n DESCRIPTION The LTC®2152-14/LTC2151-14/LTC2150-14 are 250Msps/ 210Msps/170Msps 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 70dB SNR and 90dB spurious free dynamic range (SFDR). The latency is only five clock cycles. DC specs include ±0.85LSB INL (typ), ±0.25LSB DNL (typ) and no missing codes over temperature. The transition noise is 1.82LSBRMS. The digital outputs are Double-Data Rate (DDR) LVDS. The ENC+ and ENC– inputs can be driven differentially 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. 70dB SNR 90dB SFDR Low Power: 338mW/316mW/290mW Total Single 1.8V Supply DDR LVDS Outputs Easy-to-Drive 1.5VP-P Input Range 1.25GHz Full Power Bandwidth S/H Optional Clock Duty Cycle Stabilizer Low Power Sleep and Nap Modes Serial SPI Port for Configuration Pin Compatible with 12-Bit Versions 40-Pin (6mm × 6mm) QFN Package APPLICATIONS n n n n n n Communications Cellular Basestations Software Defined Radios Medical Imaging High Definition Video Testing and Measurement Instruments TYPICAL APPLICATION VDD OVDD D12_13 • • • D0_1 32K Point FFT, fIN = 15MHz, –1dBFS, 250Msps 0 –20 AMPLITUDE (dBFS) ANALOG INPUT S/H 14-BIT PIPELINED ADC CORRECTION LOGIC OUTPUT DRIVERS DDR LVDS –40 –60 –80 CLOCK CLOCK/DUTY CYCLE CONTROL 21521014 TA01a OGND –100 –120 0 20 40 60 80 100 FREQUENCY (MHz) 120 21521014 TA01b 21521014p 1 LTC2152-14/ LTC2151-14/LTC2150-14 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) PIN CONFIGURATION TOP VIEW PAR/SER D12_13+ D12_13– D10_11+ D2_3+ D10_11– 30 OVDD 29 D8_9+ 28 D8_9– 27 CLKOUT+ GND 41 26 CLKOUT – 25 D6_7+ 24 D6_7– 23 D4_5+ 22 D4_5– 21 OGND 11 12 13 14 15 16 17 18 19 20 GND D0_1– D0_1+ D2_3– OVDD ENC+ ENC– OF – OF + Supply Voltage VDD, OVDD................................................ –0.3V to 2V Analog Input Voltage AINA/B+, AINA/B –, PAR/SER, SENSE (Note 3)........................ –0.3V to (VDD + 0.2V) Digital Input Voltage ENC+, ENC– (Note 3) ................ –0.3V to (VDD + 3.9V) CS, SDI, SCK (Note 4).............. –0.3V to (VDD + 0.3V) SDO (Note 4)............................................. –0.3V to 3.9V Digital Output Voltage ................ –0.3V to (OVDD + 0.3V) Operating Temperature Range LTC2152C, LTC2151C, LTC2150C ............. 0°C to 70°C LTC2152I, LTC2151I, LTC2150I ............ –40°C to 85°C Storage Temperature Range .................. –65°C to 150°C 40 39 38 37 36 35 34 33 32 31 VDD 1 VDD 2 GND 3 AIN+ 4 AIN– 5 GND 6 SENSE 7 VREF 8 VCM 9 GND 10 UJ PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN TJMAX = 150°C, θJA = 33°C/W EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH LTC2152CUP-14#PBF LTC2152IUP-14#PBF LTC2151CUP-14#PBF LTC2151IUP-14#PBF LTC2150CUP-14#PBF LTC2150IUP-14#PBF TAPE AND REEL LTC2152CUP-14#TRPBF LTC2152IUP-14#TRPBF LTC2151CUP-14#TRPBF LTC2151IUP-14#TRPBF LTC2150CUP-14#TRPBF LTC2150IUP-14#TRPBF PART MARKING* LTC2152-14 LTC2152-14 LTC2151-14 LTC2151-14 LTC2150-14 LTC2150-14 PACKAGE DESCRIPTION 40-Lead (6mm × 6mm) Plastic QFN 40-Lead (6mm × 6mm) Plastic QFN 40-Lead (6mm × 6mm) Plastic QFN 40-Lead (6mm × 6mm) Plastic QFN 40-Lead (6mm × 6mm) Plastic QFN 40-Lead (6mm × 6mm) Plastic QFN TEMPERATURE RANGE 0°C to 70°C –40°C to 85°C 0°C to 70°C –40°C to 85°C 0°C to 70°C –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ GND SDO SCK SDI CS 21521014p 2 LTC2152-14/ LTC2151-14/LTC2150-14 CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) CONDITIONS l PARAMETER Resolution (No Missing Codes) Integral Linearity Error Differential Linearity Error Offset Error Gain Error Offset Drift Full-Scale Drift Transition Noise MIN 14 –3.7 –1 –15 LTC2152-14 TYP MAX ±0.85 ±0.5 ±5 ±1 ±20 ±30 ±10 1.85 3.7 1 15 MIN 14 –3.8 –1 –15 LTC2151-14 TYP MAX ±1 ±0.5 ±5 ±1 ±20 ±30 ±10 1.8 3.8 1 15 LTC2150-14 MIN TYP MAX 14 –3.8 –1 –15 ±1 ±0.5 ±3 ±1 ±20 ±30 ±10 1.8 3.8 1 15 UNITS Bits LSB LSB mV %FS µV/°C ppm/°C ppm/°C LSBRMS Differential Analog Input (Note 6) l Differential Analog Input (Note 7) External Reference Internal Reference External Reference External Reference l l l ANALOG INPUT SYMBOL PARAMETER VIN VIN(CM) VSENSE IIN1 IIN2 IIN3 tAP tJITTER CMRR BW-3B The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) CONDITIONS 1.7V < VDD < 1.9V Differential Analog Input (Note 8) External Reference Mode 0 < AIN+, AIN– < VDD 1.2V < SENSE < 1.3V 0 < PAR/SER < VDD l l l l l l MIN VCM – 20mV 1.200 –1 –1 –1 TYP 1.5 VCM 1.250 MAX VCM + 20mV 1.300 1 1 1 UNITS VP-P V V µA µA µA ns psRMS dB MHz Analog Input Range (AIN+ – AIN–) Analog Input Common Mode (AIN+ + AIN–)/2 External Reference Mode Analog Input Leakage Current SENSE Input Leakage Current PAR/SER Input Leakage Current Sample-and-Hold Acquisition Delay Time Sample-and-Hold Acquisition Delay Jitter Analog Input Common Mode Rejection Ratio Full-Power Bandwidth 1 0.15 75 1250 The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5) SYMBOL SNR PARAMETER Signal-to-Noise Ratio CONDITIONS 5MHz Input 70MHz Input 140MHz Input MIN LTC2152-14 TYP MAX 70 69.7 69 90 85 80 95 95 85 69.9 69.4 68.8 MIN LTC2151-14 TYP MAX 70 69.7 69 90 85 80 95 95 85 69.9 69.4 68.8 LTC2150-14 MIN TYP MAX 70 69.7 69 90 85 80 98 95 85 69.9 69.4 68.8 UNITS dBFS dBFS dBFS dBFS dBFS dBFS dBFS dBFS dBFS dBFS dBFS dBFS DYNAMIC ACCURACY l TBD TBD TBD TBD SFDR Spurious Free Dynamic Range 5MHz Input 2nd or 3rd Harmonic 70MHz Input 140MHz Input Spurious Free Dynamic Range 5MHz Input 4th Harmonic or Higher 70MHz Input 140MHz Input l TBD TBD l TBD TBD TBD S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input 70MHz Input 140MHz Input l TBD TBD TBD 21521014p 3 LTC2152-14/ LTC2151-14/LTC2150-14 INTERNAL REFERENCE CHARACTERISTICS PARAMETER VCM Output Voltage VCM Output Temperature Drift VCM Output Resistance VREF Output Voltage VREF Output Temperature Drift VREF Output Resistance VREF Line Regulation –400µA < IOUT < 1mA 1.7V < VDD < 1.9V –1mA < IOUT < 1mA IOUT = 0 1.225 CONDITIONS IOUT = 0 The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) MIN 0.444 • VDD – 15mV TYP 0.444 • VDD ±37 4 1.250 ±30 7 0.6 1.275 MAX 0.444 • VDD + 15mV UNITS V ppm/°C Ω V ppm/°C Ω mV/V POWER REQUIREMENTS SYMBOL PARAMETER VDD OVDD IVDD IOVDD PDISS PSLEEP PNAP Analog Supply Voltage Output Supply Voltage Analog Supply Current Digital Supply Current Power Dissipation Nap Mode Power Sleep Mode Power CONDITIONS (Note 9) The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) MIN l l l LTC2152-14 TYP MAX 1.8 1.8 160 28 47 338 372 113.5