LTC2207/LTC2206 25VP-P LTC2207 LTC2207-14 LTC2206 LTC2206-14 LTC2205 LTC2205-14 - Datasheet Archive

 

16-Bit, 105Msps/80Msps ADCs DESCRIPTION FEATURES Sample Rate: 105Msps/80Msps 78.2dBFS Noise Floor 100dB SFDR SFDR >82dB at

 

LTC2207/LTC2206 LTC2207/LTC2206 16-Bit, 105Msps/80Msps ADCs DESCRIPTION FEATURES Sample Rate: 105Msps/80Msps 78.2dBFS Noise Floor 100dB SFDR SFDR >82dB at 250MHz (1.5VP-P Input Range) PGA Front End (2.25VP-P 25VP-P or 1.5VP-P Input Range) 700MHz Full Power Bandwidth S/H Optional Internal Dither Optional Data Output Randomizer Single 3.3V Supply Power Dissipation: 900mW/725mW Optional Clock Duty Cycle Stabilizer Out-of-Range Indicator Pin Compatible Family 105Msps: LTC2207 LTC2207 (16-Bit), LTC2207-14 LTC2207-14 (14-Bit) 80Msps: LTC2206 LTC2206 (16-Bit), LTC2206-14 LTC2206-14 (14-Bit) 65Msps: LTC2205 LTC2205 (16-Bit), LTC2205-14 LTC2205-14 (14-Bit) 40Msps: LTC2204 LTC2204 (16-Bit) 25Msps: LTC2203 LTC2203 (16-Bit) Single-Ended Clock 10Msps: LTC2202 LTC2202 (16-Bit) Single-Ended Clock 48-Pin 7mm × 7mm QFN Package APPLICATIONS The LTC®2207/LTC2206 2207/LTC2206 are 105Msps/80Msps, sampling 16-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. The LTC2207/LTC2206 LTC2207/LTC2206 are perfect for demanding communications applications, with AC performance that includes 78.2dB Noise Floor and 100dB spurious free dynamic range (SFDR). Ultralow jitter of 80fsRMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±4LSB 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. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE TYPICAL APPLICATION LTC2207 LTC2207: 64K Point FFT, fIN = 14.8MHz, ­1dBFS, PGA = 0, 105Msps 3.3V SENSE OVDD 2.2F AIN+ 1.25V COMMON MODE BIAS VOLTAGE + ANALOG INPUT AIN­ INTERNAL ADC REFERENCE GENERATOR 16-BIT 16-BIT PIPELINED ADC CORE S/H AMP ­ 0.5V TO 3.6V 0.1F OF CLKOUT+ CLKOUT­ D15 · · · D0 OUTPUT DRIVERS CORRECTION LOGIC AND SHIFT REGISTER AMPLITUDE (dBFS) VCM OGND CLOCK/DUTY CYCLE CONTROL 3.3V VDD GND 0.1F 0.1F 0.1F 22076 TA01 ENC+ ENC­ PGA SHDN DITH MODE OE ADC CONTROL INPUTS RAND 0 ­10 ­20 ­30 ­40 ­50 ­60 ­70 ­80 ­90 ­100 ­110 ­120 ­130 0 10 30 40 20 FREQUENCY (MHz) 50 22076 G05 22076fb 1 LTC2207/LTC2206 LTC2207/LTC2206 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION OVDD = VDD (Notes 1, 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 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 LTC2207C/LTC2206C LTC2207C/LTC2206C . 0°C to 70°C LTC2207I/LTC2206I LTC2207I/LTC2206I. ­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 D11 34 D10 33 D9 32 D8 31 OGND 30 CLKOUT+ 29 CLKOUT­ 28 D7 27 D6 26 D5 25 OVDD VDD 13 VDD 14 GND 15 SHDN 16 DITH 17 D0 18 D1 19 D2 20 D3 21 D4 22 OGND 23 OVDD 24 49 UK PACKAGE 48-LEAD 48-LEAD (7mm 7mm) PLASTIC QFN EXPOSED PAD IS GND (PIN 49) MUST BE SOLDERED TO PCB BOARD TJMAX = 150°C, JA = 29°C/W ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2207CUK LTC2207CUK#PBF LTC2207CUK LTC2207CUK#TRPBF LTC2207UK LTC2207UK 48-Lead (7mm × 7mm) Plastic Plastic QFN 0°C to 70°C LTC2206CUK LTC2206CUK#PBF LTC2206CUK LTC2206CUK#TRPBF LTC2206UK LTC2206UK 48-Lead (7mm × 7mm) Plastic Plastic QFN 0°C to 70°C LTC2207IUK LTC2207IUK#PBF LTC2207IUK LTC2207IUK#TRPBF LTC2207UK LTC2207UK 48-Lead (7mm × 7mm) Plastic Plastic QFN ­40°C to 85°C LTC2206IUK LTC2206IUK#PBF LTC2206IUK LTC2206IUK#TRPBF LTC2206UK LTC2206UK 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. Consult LTC Marketing for information on non-standard lead based finish parts. 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/ CONVERTER CHARACTERISTICS The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) PARAMETER CONDITIONS Integral Linearity Error Differential Analog Input (Note 5) TA = 25°C Integral Linearity Error Differential Analog Input (Note 5) Differential Linearity Error Offset Error MIN TYP MAX ±1.2 ±4 LSB 1.5 ±4.5 LSB Differential Analog Input ±0.3 ±1 LSB (Note 6) ±1 ±8.5 mV Gain Error External Reference Full-Scale Drift Internal Reference External Reference ±10 Offset Drift Transition Noise ±0.2 UNITS V/°C ±1.5 %FS ±30 ±15 ppm/°C ppm/°C 2.8 LSBRMS 22076fb 2 LTC2207/LTC2206 LTC2207/LTC2206 ANALOG INPUT The 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 3.135V VDD 3.465V VIN, CM Analog Input Common Mode Differential Input (Note 7) IIN Analog Input Leakage Current 0V AIN+, AIN­ VDD (Note 10) ISENSE SENSE Input Leakage Current 0V SENSE VDD (Note 11) IMODE MODE Pin Pull-Down Current to GND TYP MAX UNITS 1.5 to 2.25 1 1.25 VP-P V 1 A 3 ­3 1.5 A 10 A 6.7 1.8 Sample Mode ENC+ < ENC­ Hold Mode ENC+ > ENC­ 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)