LTC2203/LTC2202 16-Bit, 25Msps/10Msps ADCs FEATURES DESCRIPTION n Sample Rate: 25Msps/10Msps The LTC 2203/LTC2202 are 25Msps/10Msps, sampling n 81.6dB SNR and 100dB SFDR (2.5V Range) 16-bit A/D converters designed for digitizing high frequen- n SFDR 90dB at 70MHz (1.667V Input Range) cy, wide dynamic range signals with input frequencies up P-P n PGA Front End (2.5V or 1.667V Input Range) to 380MHz. The input range of the ADC can be optimized P-P P-P n 380MHz Full Power Bandwidth S/H with the PGA front end. n Optional Internal Dither The LTC2203/LTC2202 are perfect for demanding app- n Optional Data Output Randomizer lications, with AC performance that includes 81.6dB n Single 3.3V Supply SNR and 100dB spurious free dynamic range (SFDR). n Power Dissipation: 220mW/140mW Maximum DC specs include 4LSB INL, 1LSB DNL (no n Clock Duty Cycle Stabilizer missing codes). n Out-of-Range Indicator n A separate output power supply allows the CMOS output Pin Compatible Family swing to range from 0.5V to 3.6V. 25Msps: LTC2203 (16-Bit) 10Msps: LTC2202 (16-Bit) A single-ended CLK input controls converter operation. An n 48-Pin (7mm 7mm) QFN Package optional clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycles. 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. n Protected by U.S. Patents including 4843302, 6949965B1. Telecommunications n Receivers n Cellular Base Stations n Spectrum Analysis n Imaging Systems n ATE TYPICAL APPLICATION LTC2203: 128K Point FFT, f = 5.1MHz, 1dBFS, PGA = 0 IN 3.3V 0 SENSE 10 20 OV DD 1.25V INTERNAL ADC V 0.5V TO 3.6V CM 30 COMMON MODE REFERENCE 1F BIAS VOLTAGE GENERATOR 40 2.2F 50 OF + 60 A IN CLKOUT+ + 70 16-BIT OUTPUT CORRECTION CLKOUT ANALOG S/H PIPELINED LOGIC AND DRIVERS CMOS 80 D15 INPUT AMP ADC CORE OUTPUTS SHIFT REGISTER 90 A IN 100 D0 110 OGND 120 CLOCK/DUTY 3.3V 130 V DD CYCLE CONTROL 140 1F 1F 1F GND 0264 8 10 12 FREQUENCY(MHz) 22032 TA02 CLK PGA SHDN DITH MODE OE RAND 22032 TA01 ADC CONTROL INPUTS 22032fd 1 AMPLITUDE (dBFS)LTC2203/LTC2202 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION OV = V (Notes 1 and 2) DD DD TOP VIEW Supply Voltage (V ) .................................. 0.3V to 4V DD Digital Output Supply Voltage (OV ) ......... 0.3V to 4V DD Digital Output Ground Voltage (OGND) ....... 0.3V to 1V SENSE 1 36 OV DD Analog Input Voltage (Note 3) .... 0.3V to (V + 0.3V) DD V 2 35 D11 CM Digital Input Voltage ................... 0.3V to (V + 0.3V) V 3 34 D10 DD DD V 4 33 D9 DD Digital Output Voltage ............... 0.3V to (OV + 0.3V) DD GND 5 32 D8 + A 6 31 OGND Power Dissipation ............................................2000mW IN 49 + A 7 30 CLKOUT IN Operating Temperature Range GND 8 29 CLKOUT GND 9 28 D7 LTC2203C/LTC2202C ............................. 0C to 70C CLK 10 27 D6 LTC2203I/LTC2202I ............................40C to 85C GND 11 26 D5 V 12 25 OV DD DD Storage Temperature Range ................. 65C to 150C UK PACKAGE 48-LEAD (7mm s 7mm ) PLASTIC QFN EXPOSED PAD IS GND (PIN 49) MUST BE SOLDERED TO PCB BOARD T = 150C, = 29C/W JMAX JA ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2203CUK PBF LTC2203CUK TRPBF LTC2203UK 48-Lead (7mm 7mm) Plastic QFN 0C to 70C LTC2202CUK PBF LTC2202CUK TRPBF LTC2202UK 0C to 70C 48-Lead (7mm 7mm) Plastic QFN LTC2203IUK PBF LTC2203IUK TRPBF LTC2203UK 48-Lead (7mm 7mm) Plastic QFN 40C to 85C LTC2202IUK PBF LTC2202IUK TRPBF LTC2202UK 40C to 85C 48-Lead (7mm 7mm) Plastic QFN LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2203CUK LTC2203CUK TR LTC2203UK 0C to 70C 48-Lead (7mm 7mm) Plastic QFN LTC2202CUK LTC2202CUK TR LTC2202UK 48-Lead (7mm 7mm) Plastic QFN 0C to 70C LTC2203IUK LTC2203IUK TR LTC2203UK 40C to 85C 48-Lead (7mm 7mm) Plastic QFN LTC2202IUK LTC2202IUK TR LTC2202UK 48-Lead (7mm 7mm) Plastic QFN 40C to 85C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container. For more information on lead free part marking, go to: