LT6350 Low Noise Single-Ended to Differential Converter/ADC Driver FeaT DescripT n Rail-to-Rail Input and Outputs The LT 6350 is a rail-to-rail input and output low noise n Fast Settling Time: 240ns, 0.01%, 8V Output Step single-ended to differential converter/ADC driver featuring P-P n 1.9nV/Hz Input-Referred Op Amp Noise fast settling time. It converts a high or low impedance, n High Impedance Input single-ended input signal to a low impedance, balanced, n 3dB Bandwidth: 33MHz differential output suitable for driving high performance n 2.7V to 12V Supply Operation differential succesive approximation register (SAR) ADCs. n No External Gain Resistors Required The two op amp topology features very low noise op amps, n 4.8mA Supply Current that can support SNR >110dB in a 1MHz bandwidth. n Low Power Shutdown The input op amp is trimmed for constant low input-referred n Low Distortion (HD2/HD3): 102dBc/97dBc at voltage offset over the input range to prevent V steps OS 100kHz, V = 4V OUTDIFF P-P from degrading distortion. n Low Offset Voltage: 400V Max n On a single 5V supply, the outputs can swing from 55mV to High DC Linearity: <1LSB, 16-Bit, 8V P-P n 4.945V. With the addition of a negative supply, the LT6350 Low Input Current Noise: 1.1pA/Hz n can swing from 0V to 4.945V. Output common mode voltage 3mm 3mm 8-Pin DFN and 8-Lead MSOP Packages is set by applying a voltage to the +IN2 pin. Ta The LT6350 draws 4.8mA from a 5V supply and consumes n 16-Bit and 18-Bit SAR ADC Drivers just 60A in shutdown mode. n Single-Ended to Differential Conversion The LT6350 is available in a compact 3mm 3mm, 8-pin n Differential Line Driver leadless DFN package and also in an 8-pin MSOP package L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear and operates over a 40C to 125C temperature range. Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5610557, 6344773. Typical Ta 20kHz Sine Wave, ADC Driver: Single-Ended Input to Differential Output 1dBFS 8192-Point FFT 0 5V + V = 5V, V = 5V 10 V = 7.3V OUTDIFF P-P 20 249 0.1F V = 2.05V +IN2 30 SNR = 94.9dB V 40 IN SINAD = 93.8dB + 5V + 0V TO 4V + IN1 SHDN V OUT2 THD = 100.2dB 50 SFDR = 102.2dB 60 + 70 A IN 80 2200pF LTC2393-16 LT6350 90 + A IN + 100 110 + IN2 V OUT1 IN1 120 249 130 140 0 100 200 300 400 500 FREQUENCY (kHz) 499 0.1F 0.1F 6350 TA01 6350 TA02 2V 5V 6350fc 1 For more information www.linear.com/LT6350 MAGNITUDE (dB) ion pplica ions pplica ion uresLT6350 Ta e MaxiMMu Tar (Note 1) Total Supply Voltage Specified Temperature Range + (V V ) ............................................................12.6V (Note 5) ..................................................40C to 125C Input Current (Note 2) ..........................................20mA Maximum Junction Temperature........................... 150C Output Short-Circuit Current Duration Storage Temperature Range ...................65C to 150C (Note 3) ............................................................ Indefinite Lead Temperature (Soldering, 10 sec) Operating Temperature Range MSOP Package Only ............................................. 300C (Note 4) ..................................................40C to 125C in p Fc T TOP VIEW TOP VIEW IN1 1 8 +IN1 IN1 1 8 +IN1 +IN2 SHDN 2 7 9 +IN2 2 7 SHDN + + V 3 6 V 6 V V 3 OUT1 4 5 OUT2 OUT1 4 5 OUT2 MS8 PACKAGE 8-LEAD PLASTIC MSOP DD PACKAGE T = 150C, = 250C/W JMAX JA 8-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 43C/W JMAX JA UNDERSIDE METAL CONNECTED TO V Der inFMTa LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT6350CDD PBF LT6350CDD TRPBF LFJT 8-Lead (3mm 3mm) Plastic DFN 0C to 70C LT6350IDD PBF LT6350IDD TRPBF LFJT 40C to 85C 8-Lead (3mm 3mm) Plastic DFN LT6350HDD PBF LT6350HDD TRPBF LFJT 8-Lead (3mm 3mm) Plastic DFN 40C to 125C LT6350CMS8 PBF LT6350CMS8 TRPBF LTFJV 8-Lead Plastic MSOP 0C to 70C LT6350IMS8 PBF LT6350IMS8 TRPBF LTFJV 8-Lead Plastic MSOP 40C to 85C LT6350HMS8 PBF LT6350HMS8 TRPBF LTFJV 8-Lead Plastic MSOP 40C to 125C 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: