LTC2216IUP#TRPBF

LTC2216/LTC2215 16-Bit, 80Msps/65Msps Low Noise ADC DESCRIPTION FEATURES n n n n n n n n n n n n n n n The LTC®2216/LTC2215 are 80Msps/65Msps sampling 16bit A/D converters designed for digitizing high frequency, wide dynamic range signals with input frequencies up to 400MHz. The input range of the ADC is fixed at 2.75VP-P. Sample Rate: 80Msps/65Msps 81.5dBFS Noise Floor 100dB SFDR SFDR >95dB at 70MHz 85fsRMS Jitter 2.75VP-P Input Range 400MHz Full Power Bandwidth S/H Optional Internal Dither Optional Data Output Randomizer LVDS or CMOS Outputs Single 3.3V Supply Power Dissipation: 970mW/700mW Clock Duty Cycle Stabilizer Pin-Compatible with LTC2208, LTC2217 64-Pin (9mm × 9mm) QFN Package The LTC2216/LTC2215 are perfect for demanding communications applications, with AC performance that includes 81.5dBFS noise floor and 100dB spurious free dynamic range (SFDR). Ultra low jitter of 85fsRMS allows undersampling of high input frequencies while maintaining excellent noise performance. Maximum DC specs include ±3.5LSB INL, ±1LSB DNL (no missing codes). The digital output can be either differential LVDS or single-ended CMOS. There are two format options for the CMOS outputs: a single bus running at the full data rate or demultiplexed buses running at half data rate. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V. APPLICATIONS n n n n n n Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE 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 with a wide range of clock duty cycles. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 3.3V LTC2216: 64k Point FFT, fIN = 4.9MHz, –1dBFS SENSE 2.2μF AIN+ 1.575V COMMON MODE BIAS VOLTAGE + ANALOG INPUT AIN– 16-BIT PIPELINED ADC CORE S/H AMP – OVDD INTERNAL ADC REFERENCE GENERATOR 0.5V TO 3.6V 1μF OUTPUT DRIVERS CORRECTION LOGIC AND SHIFT REGISTER OF CLKOUT D15 • • • D0 CMOS OR LVDS 1μF 1μF OGND CLOCK/DUTY CYCLE CONTROL 3.3V VDD GND 1μF 22165 TA01 ENC + ENC – SHDN DITH MODE LVDS RAND 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 AMPLITUDE (dBFS) VCM 0 10 20 30 FREQUENCY (MHz) 40 22165 TA01b ADC CONTROL INPUTS 22165f 1 LTC2216/LTC2215 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION OVDD = VDD (Notes 1 and 2) 64 NC 63 RAND 62 MODE 61 LVDS 60 OF+/OFA 59 OF–/DA15 58 D15+/DA14 57 D15–/DA13 56 D14+/DA12 55 D14–/DA11 54 D13+/DA10 53 D13–/DA9 52 D12+/DA8 51 D12–/DA7 50 OGND 49 OVDD TOP VIEW SENSE 1 GND 2 VCM 3 GND 4 VDD 5 VDD 6 GND 7 AIN+ 8 AIN– 9 GND 10 GND 11 ENC+ 12 ENC– 13 GND 14 VDD 15 VDD 16 48 D11+/DA6 47 D11–/DA5 46 D10+/DA4 45 D10–/DA3 44 D9+/DA2 43 D9–/DA1 42 D8+/DA0 41 D8–/CLKOUTA 40 CLKOUT+/CLKOUTB 39 CLKOUT –/OFB 38 D7+/DB15 37 D7–/DB14 36 D6+/DB13 35 D6–/DB12 34 D5+/DB11 33 D5–/DB10 65 VDD 17 GND 18 SHDN 19 DITH 20 –/DB0 21 D0 +/DB1 22 DO D1–/DB2 23 D1+/DB3 24 D2–/DB4 25 D2+/DB5 26 D3–/DB6 27 D3+/DB7 28 D4–/DB8 29 D4+/DB9 30 OGND 31 OVDD 32 Supply Voltage (VDD) ................................... –0.3V to 4V Digital Output Supply Voltage (OVDD) .......... –0.3V to 4V Digital Output Ground Voltage (OGND)........ –0.3V to 1V Analog Input Voltage (Note 3) ..... –0.3V to (VDD + 0.3V) Digital Input Voltage .................... –0.3V to (VDD + 0.3V) Digital Output Voltage ................–0.3V to (OVDD + 0.3V) Power Dissipation.............................................2000mW Operating Temperature Range LTC2215C/LTC2216C ............................... 0°C to 70°C LTC2215I/LTC2216I..............................–40°C to 85°C Storage Temperature Range ..................–65°C to 150°C TJMAX = 150°C, θJA = 20°C/W EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2215CUP#PBF LTC2215CUP#TRPBF LTC2215UP 64-Lead (9mm × 9mm) Plastic QFN 0°C to 70°C LTC2215IUP#PBF LTC2215IUP#TRPBF LTC2215UP 64-Lead (9mm × 9mm) Plastic QFN –40°C to 85°C LTC2216CUP#PBF LTC2216CUP#TRPBF LTC2216UP 64-Lead (9mm × 9mm) Plastic QFN 0°C to 70°C LTC2216IUP#PBF LTC2216IUP#TRPBF LTC2216UP 64-Lead (9mm × 9mm) Plastic QFN –40°C to 85°C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2215CUP LTC2215CUP#TR LTC2215UP 64-Lead (9mm × 9mm) Plastic QFN 0°C to 70°C LTC2215IUP LTC2215IUP#TR LTC2215UP 64-Lead (9mm × 9mm) Plastic QFN –40°C to 85°C LTC2216CUP LTC2216CUP#TR LTC2216UP 64-Lead (9mm × 9mm) Plastic QFN 0°C to 70°C LTC2216IUP LTC2216IUP#TR LTC2216UP 64-Lead (9mm × 9mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ 22165f 2 LTC2216/LTC2215 CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS Integral Linearity Error Differential Analog Input (Note 5) l ±1.2 ±3.5 LSB Differential Linearity Error Differential Analog Input l 0.16/–0.2 ±1 LSB Offset Error (Note 6) l ±1.5 ±8 mV Offset Drift ±4 Gain Error External Reference l μV/°C ±0.3 ±1 %FS Full-Scale Drift Internal Reference External Reference –65 ±12 ppm/°C ppm/°C Transition Noise External Reference 2 LSBRMS ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS VIN Analog Input Range (AIN+ – AIN–) 3.135V ≤ VDD ≤ 3.465V VIN, CM Analog Input Common Mode Differential Input (Note 7) l 1.2 IIN Analog Input Leakage Current 0V ≤ AIN+, AIN– ≤ VDD l –1 ISENSE SENSE Input Leakage Current 0V ≤ SENSE ≤ VDD l –3 IMODE MODE Pin Pull-Down Current to GND ILVDS LVDS Pin Pull-Down Current to GND CIN Analog Input Capacitance tAP Sample-and-Hold Acquisition Delay Time tJITTER Sample-and-Hold Aperture Jitter CMRR Analog Input Common Mode Rejection Ratio BW-3dB Full Power Bandwidth Sample Mode ENC+ < ENC– Hold Mode ENC+ > ENC– MIN TYP MAX 2.75 1.575 UNITS VP-P 1.8 V 1 μA 3 μA 10 μA 10 μA 9.1 1.8 pF pF 0.35 ns 85 fs RMS 1.2V < (AIN+ = AIN–)