LTC2153CUJ-12#PBF

LTC2153-12 12-Bit 310Msps ADC Features Description 67.6dBFS SNR n 88dB SFDR n Low Power: 378mW Total n Single 1.8V Supply n DDR LVDS Outputs n 1.32V P-P Input Range n 1.25GHz Full Power Bandwidth S/H n Optional Clock Duty Cycle Stabilizer n Low Power Sleep and Nap Modes n Serial SPI Port for Configuration n Pin-Compatible 12-Bit Versions n 40-Lead (6mm × 6mm) QFN Package The LTC®2153-12 is a 310Msps 12-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 67.6dB SNR and 88dB spurious free dynamic range (SFDR). The 1.25GHz input bandwidth allows the ADC to undersample high frequencies with good performance. The latency is only six clock cycles. n DC specs include ±0.6LSB INL (typ), ±0.1LSB DNL (typ) and no missing codes over temperature. The transition noise is 0.6LSBRMS. The digital outputs are double data rate (DDR) LVDS. Applications n n n n n n 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. Communications Cellular Basestations Software Defined Radios Medical Imaging High Definition Video Testing and Measurement Instruments 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 LTC2153-12 32K Point 2-Tone FFT, fIN = 71MHz and 69MHz, 310Msps VDD 0 OVDD CLOCK S/H CLOCK/DUTY CYCLE CONTROL 12-BIT PIPELINED ADC CORRECTION LOGIC OUTPUT DRIVERS D10_11 • • • D0_1 –20 DDR LVDS OGND GND AMPLITUDE (dBFS) ANALOG INPUT –40 –60 –80 –100 215312 TA01a –120 0 20 40 60 80 100 120 140 FREQUENCY (MHz) 215312 TA01b 215312fa For more information www.linear.com/LTC2153-12 1 LTC2153-12 Absolute Maximum Ratings Pin Configuration (Notes 1, 2) D8_9– D8_9+ D10_11– D10_11+ GND SDO SDI SCK CS PAR/SER TOP VIEW 40 39 38 37 36 35 34 33 32 31 VDD 1 30 OVDD VDD 2 29 D6_7+ GND 3 28 D6_7– + AIN 27 CLKOUT+ 4 AIN– 5 26 CLKOUT – 41 GND GND 6 25 D4_5+ SENSE 7 24 D4_5– VREF 8 23 D2_3+ VCM 9 22 D2_3– GND 10 21 OGND OVDD D0_1+ D0_1 – NC NC OF + OF – GND ENC– 11 12 13 14 15 16 17 18 19 20 ENC+ Supply Voltage 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– (Note 3)................. –0.3V to (VDD + 0.3V) 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 LTC2153C................................................. 0°C to 70°C LTC2153I..............................................–40°C to 85°C Storage Temperature Range................... –65°C to 150°C 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 TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2153CUJ-12#PBF LTC2153CUJ-12#TRPBF LTC2153UJ-12 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C LTC2153IUJ-12#PBF LTC2153IUJ-12#TRPBF LTC2153UJ-12 40-Lead (6mm × 6mm) Plastic QFN –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/ 215312fa 2 For more information www.linear.com/LTC2153-12 LTC2153-12 Converter Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN Resolution (No Missing Codes) l TYP MAX UNITS 12 Bits Integral Linearity Error Differential Analog Input (Note 6) l –1.8 ±0.6 1.8 LSB Differential Linearity Error Differential Analog Input l – 0.7 ±0.1 0.7 LSB Offset Error (Note 7) l –12 ±5 12 mV Gain Error Internal Reference External Reference l –4 ±1.5 ±1 3 %FS %FS Offset Drift Full-Scale Drift Internal Reference External Reference Transition Noise ±20 µV/°C ±30 ±10 ppm/°C ppm/°C 0.6 LSBRMS Analog Input The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS VIN Analog Input Range (AIN+ – AIN–) 1.74V < VDD < 1.9V VIN(CM) Analog Input Common Mode (AIN+ + AIN–)/2 Differential Analog Input (Note 8) VSENSE External Voltage Reference Applied to SENSE External Reference Mode MIN TYP MAX UNITS 1.32 VP-P l VCM – 20mV VCM VCM + 20mV V l 1.230 1.250 1.270 V l –1 1 µA IIN1 Analog Input Leakage Current 0 < AIN+, AIN– < VDD, No Encode IIN2 PAR/SER Input Leakage Current 0 < PAR/SER < VDD l –1 1 µA IIN3 SENSE Input Leakage Current 1.23V < SENSE < 1.27V l –1 1 µA tAP Sample-and-Hold Acquisition Delay Time 1 tJITTER Sample-and-Hold Acquisition Delay Jitter 0.15 CMRR Analog Input Common Mode Rejection Ratio BW-3B Full-Power Bandwidth ns psRMS 75 dB 1250 MHz Dynamic Accuracy 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 PARAMETER CONDITIONS SNR Signal-to-Noise Ratio 15MHz Input 70MHz Input 140MHz Input SFDR S/(N+D) Spurious Free Dynamic Range 2nd or 3rd Harmonic 15MHz Input 70MHz Input 140MHz Input Spurious Free Dynamic Range 4th Harmonic or Higher 15MHz Input 70MHz Input 140MHz Input Signal-to-Noise Plus Distortion Ratio 15MHz Input 70MHz Input 140MHz Input l l l l MIN TYP 65.8 67.6 67.1 67.0 MAX UNITS dBFS dBFS dBFS 70 88 85 80 dBFS dBFS dBFS 80 98 95 90 dBFS dBFS dBFS 65 67.1 67.0 66.9 dBFS dBFS dBFS 215312fa For more information www.linear.com/LTC2153-12 3 LTC2153-12 Internal Reference Characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS VCM Output Voltage IOUT = 0 MIN TYP MAX 0.439 • VDD – 18mV 0.439 • VDD 0.439 • VDD + 18mV VCM Output Temperature Drift UNITS ±37 VCM Output Resistance –1mA < IOUT < 1mA VREF Output Voltage IOUT = 0 ppm/°C 4 1.225 Ω 1.250 VREF Output Temperature Drift 1.275 V ±30 VREF Output Resistance –400µA < IOUT < 1mA VREF Line Regulation 1.74V < VDD < 1.9V V ppm/°C 7 Ω 0.6 mV/V Power Requirements The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Analog Supply Voltage (Note 9) l 1.74 1.8 1.9 V OVDD Output Supply Voltage (Note 9) l 1.74 1.8 1.9 V IVDD Analog Supply Current l 182 205 mA IOVDD Digital Supply Current 1.75mA LVDS Mode 3.5mA LVDS Mode l l 28 48.5 34 52 mA mA PDISS Power Dissipation 1.75mA LVDS Mode 3.5mA LVDS Mode l l 378 415 430 463 mW mW PSLEEP Sleep Mode Power Clock Disabled Clocked at fS(MAX)