LTC2207IUK-14#PBF

LTC2207-14/LTC2206-14 14-Bit, 105Msps/80Msps ADCs Description Features Sample Rate: 105Msps/80Msps nn 77.3dBFS Noise Floor nn 98dB SFDR nn SFDR >82dB at 250MHz (1.5V P-P Input Range) nn PGA Front End (2.25V P-P or 1.5VP-P Input Range) nn 700MHz Full Power Bandwidth S/H nn Optional Internal Dither nn Optional Data Output Randomizer nn Single 3.3V Supply nn Power Dissipation: 947mW/762mW nn Optional Clock Duty Cycle Stabilizer nn Out-of-Range Indicator nn Pin-Compatible Family nn 105Msps: LTC2207 (16-Bit), LTC2207-14 (14-Bit) nn 80Msps: LTC2206 (16-Bit), LTC2206-14 (14-Bit) nn 65Msps: LTC2205 (16-Bit), LTC2205-14 (14-Bit) nn 40Msps: LTC2204 (16-Bit) nn 25Msps: LTC2203 (16-Bit) Single-Ended Clock nn 10Msps: LTC2202 (16-Bit) Single-Ended Clock nn 48-Pin 7mm × 7mm QFN Package The LTC®2207-14/LTC2206-14 are 105Msps/80Msps, sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals up to input frequencies of 700MHz. The input range of the ADC can be optimized with the PGA front end. Applications 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. nn The LTC2207-14/LTC2206-14 are perfect for demanding communications applications, with AC performance that includes 77.3dB SNR and 98dB spurious free dynamic range (SFDR). Ultralow jitter of 80fsRMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±1.5LSB INL, ±1LSB DNL (no missing codes) over temperature. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V. 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. Telecommunications Receivers nn Cellular Base Stations nn Spectrum Analysis nn Imaging Systems nn ATE nn nn Typical Application LTC2207-14: 32K Point FFT, fIN = 14.86MHz, –1dBFS, PGA = 0, 105Msps 3.3V SENSE OVDD 2.2µF AIN + ANALOG INPUT AIN– 1.25V COMMON MODE BIAS VOLTAGE + – INTERNAL ADC REFERENCE GENERATOR 14-BIT PIPELINED ADC CORE S/H AMP ENC– 0 –10 –20 OF CLKOUT+ CLKOUT– D13 • • • D0 OUTPUT DRIVERS CORRECTION LOGIC AND SHIFT REGISTER –30 OGND CLOCK/DUTY CYCLE CONTROL ENC+ 0.5V TO 3.6V 0.1µF AMPLITUDE (dBFS) VCM PGA SHDN DITH MODE OE RAND –50 –60 –70 –80 –90 3.3V VDD GND –40 0.1µF 0.1µF 0.1µF –100 –110 –120 2207614 TA01 ADC CONTROL INPUTS For more information www.linear.com/LTC2207-14 0 10 30 40 20 FREQUENCY (MHz) 50 2207614 TA01b 220714614fd 1 LTC2207-14/LTC2206-14 Absolute Maximum Ratings OVDD = VDD (Notes 1, 2) Pin Configuration TOP VIEW 48 GND 47 PGA 46 RAND 45 MODE 44 OE 43 OF 42 D13 41 D12 40 D11 39 D10 38 OGND 37 OVDD Supply Voltage (VDD).................................... –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 LTC2207-14C/LTC2206-14C...................... 0°C to 70°C LTC2207-14I/LTC2206-14I....................–40°C to 85°C Storage Temperature Range................... –65°C to 150°C Digital Output Supply Voltage (OVDD)........... –0.3V to 4V SENSE 1 VCM 2 VDD 3 VDD 4 GND 5 AIN+ 6 AIN– 7 GND 8 ENC+ 9 ENC– 10 GND 11 VDD 12 36 OVDD 35 D9 34 D8 33 D7 32 D6 31 OGND 30 CLKOUT+ 49 VDD 13 VDD 14 GND 15 SHDN 16 DITH 17 NC 18 NC 19 D0 20 D1 21 D2 22 OGND 23 OVDD 24 29 CLKOUT– 28 D5 27 D4 26 D3 25 OVDD UK PACKAGE 48-LEAD (7mm × 7mm) PLASTIC QFN EXPOSED PAD IS GND (PIN 49) MUST BE SOLDERED TO PCB BOARD TJMAX = 125°C, θJA = 29°C/W Order Information LEAD FREE FINISH TAPE AND REEL LTC2207CUK-14#PBF PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2207CUK-14#TRPBF LTC2207UK-14 48-Lead (7mm × 7mm) Plastic Plastic QFN 0°C to 70°C LTC2206CUK-14#PBF LTC2206CUK-14#TRPBF LTC2206UK-14 48-Lead (7mm × 7mm) Plastic Plastic QFN 0°C to 70°C LTC2207IUK-14#PBF LTC2207IUK-14#TRPBF LTC2207UK-14 48-Lead (7mm × 7mm) Plastic Plastic QFN –40°C to 85°C LTC2206IUK-14#PBF LTC2206IUK-14#TRPBF LTC2206UK-14 48-Lead (7mm × 7mm) Plastic 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 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 TYP MAX UNITS Integral Linearity Error Differential Analog Input (Note 5) l MIN ±0.4 ±1.5 LSB Differential Linearity Error Differential Analog Input l ±0.1 ±1 LSB Offset Error (Note 6) l ±1 ±10.3 mV Gain Error External Reference l Full-Scale Drift Internal Reference External Reference Offset Drift Transition Noise 2 µV/°C ±10 ±0.2 ±2.3 %FS ±30 ±15 ppm/°C ppm/°C 0.8 LSBRMS 220714614fd For more information www.linear.com/LTC2207-14 LTC2207-14/LTC2206-14 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 l MIN VIN, CM Analog Input Common Mode Differential Input (Note 7) l 1 IIN Analog Input Leakage Current 0V ≤ AIN+, AIN– ≤ VDD (Note 8) l ISENSE SENSE Input Leakage Current 0V ≤ SENSE ≤ VDD (Note 9) l IMODE MODE Pin Pull-Down Current to GND TYP MAX UNITS 1.5 to 2.25 1.25 VP-P 1.5 V –1 1 µA –4 3 µA Sample Mode ENC+ < ENC– Hold Mode ENC+ > ENC– 10 µA 6.7 1.8 pF pF CIN Analog Input Capacitance tAP Sample-and-Hold Acquisition Delay Time 1 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 80 fsRMS CMRR Analog Input Common Mode Rejection Ratio 1V < (AIN+ = AIN–)