LTC2201IUK#PBF

LTC2201 16-Bit, 20Msps ADC FEATURES DESCRIPTION n The LTC®2201 is a 20Msps, sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals with input frequencies up to 380MHz. The input range of the ADC can be optimized with the PGA front end. n n n n n n n n n n n n Sample Rate: 20Msps 81.6dB SNR and 100dB SFDR (2.5V Range) 90dB SFDR at 70MHz (1.667VP-P Input Range) PGA Front End (2.5VP-P or 1.667VP-P Input Range) 380MHz Full Power Bandwidth S/H Optional Internal Dither Optional Data Output Randomizer Single 3.3V Supply Power Dissipation: 211mW Clock Duty Cycle Stabilizer Out-of-Range Indicator Pin Compatible Family 25Msps: LTC2203 (16-Bit) 10Msps: LTC2202 (16-Bit) 48-Pin (7mm × 7mm) QFN Package The LTC2201 is perfect for demanding applications, with AC performance that includes 81.6dB SNR and 100dB spurious free dynamic range (SFDR). Maximum DC specs include ±5LSB INL, ±1LSB DNL (no missing codes). A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V. A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed with 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. APPLICATIONS n n n n n n Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE TYPICAL APPLICATION Integral Nonlinearity (INL) vs Output Code 3.3V SENSE 2.2μF AIN 1.25V COMMON MODE BIAS VOLTAGE 1.5 1.0 + S/H AMP – 0.5V TO 3.6V 1μF OF CLKOUT+ CLKOUT– + ANALOG INPUT AIN 2.0 OVDD INTERNAL ADC REFERENCE GENERATOR – 16-BIT PIPELINED ADC CORE OUTPUT DRIVERS CORRECTION LOGIC AND SHIFT REGISTER INL ERROR (LSB) VCM D15 t t t D0 CMOS OUTPUTS CLK 3.3V VDD GND PGA SHDN DITH MODE OE RAND 0.0 –0.5 –1.0 OGND CLOCK/DUTY CYCLE CONTROL 0.5 1μF 1μF 1μF –1.5 –2.0 0 16384 32768 CODE 2201 TA01 49152 65536 2201 TA02 ADC CONTROL INPUTS 2201f 1 LTC2201 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION OVDD = VDD (Notes 1 and 2) 48 GND 47 PGA 46 RAND 45 MODE 44 OE 43 OF 42 D15 41 D14 40 D13 39 D12 38 OGND 37 OVDD TOP VIEW SENSE 1 VCM 2 VDD 3 VDD 4 GND 5 AIN+ 6 AIN– 7 GND 8 GND 9 CLK 10 GND 11 VDD 12 36 OVDD 35 D11 34 D10 33 D9 32 D8 31 OGND 30 CLKOUT + 29 CLKOUT – 28 D7 27 D6 26 D5 25 OVDD 49 VDD 13 VDD 14 GND 15 SHDN 16 DITH 17 D0 18 D1 19 D2 20 D3 21 D4 22 OGND 23 OVDD 24 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 LTC2201C ............................................... 0°C to 70°C LTC2201I ............................................ –40°C to 85°C Storage Temperature Range ................. –65°C to 150°C UK PACKAGE 48-LEAD (7mm s 7mm) PLASTIC QFN EXPOSED PAD IS GND (PIN 49) MUST BE SOLDERED TO PCB BOARD TJMAX = 150°C, θJA = 29°C/W ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2201CUK#PBF LTC2201CUK#TRPBF LTC2201UK 48-Lead (7mm × 7mm) Plastic QFN 0°C to 70°C LTC2201IUK#PBF LTC2201IUK#TRPBF LTC2201UK 48-Lead (7mm × 7mm) 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/ 2201f 2 LTC2201 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 Resolution (No missing codes) TYP MAX UNITS 16 Integral Linearity Error Differential Analog Input (Note 5) l ±1.5 ±5 LSB Differential Linearity Error Differential Analog Input l ±0.3 ±1 LSB Offset Error (Note 6) l ±2 ±10 mV Gain Error External Reference l ±0.2 Full-Scale Drift Internal Reference External Reference ±30 ±15 ppm/°C ppm/°C Transition Noise External Reference (2.5V Range, PGA = 0) 1.92 LSBRMS Offset Drift ±10 μV/°C ±1.5 %FS 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–) MIN TYP MAX UNITS 3.135V ≤ VDD ≤ 3.465V VIN, CM Analog Input Common Mode Differential Input (Note 7) l 1 1.5 V IIN Analog Input Leakage Current 0V ≤ AIN+, AIN– ≤ VDD (Note 9) l –1 1 μA ISENSE SENSE Input Leakage Current 0V ≤ SENSE ≤ VDD (Note 10) l –3 3 μA IMODE MODE Pin Pull-Down Current to GND 10 μA IOE OE Pin Pull-Down Current to GND 10 μA CIN Analog Input Capacitance 10.5 1.4 pF pF tAP Sample-and-Hold Acquisition Delay Time 0.9 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 200 fsRMS CMRR Analog Input Common Mode Rejection Ratio 1V < (AIN+ = AIN–)