LT1567CMS8#PBF Analog Devices

LT1567 1.4nV/Hz 180MHz Filter Building Block FEATURES DESCRIPTIO Single-Ended to Differential Conversion The LT 1567 is an analog building block optimized for Low Noise: 1.4nV/Hz very low noise high frequency filter applications. It con- 20V Total Wideband Noise in Filter tains two wideband rail-to-rail operational amplifiers, one RMS with 2MHz f of them internally configured as a unity-gain inverter. C Dynamic Range: 104dB SNR at 5V With the addition of a few passive components, the Total Supply Voltage: 2.7V to 12V LT1567 becomes a flexible second order filter section Rail-to-Rail Outputs with cutoff frequency (f ) up to 5MHz, ideal for antialias- C DC Accurate: Op Amp V 0.5mV (Typ) ing or for channel filtering in high speed data communi- OS Trimmed Bandwidth for Accurate Filters cations systems. A spreadsheet-based design tool is No External Clock Required available at www.linear.com for designing lowpass and MSOP-8 Surface Mount Package bandpass filters using the LT1567. U In addition to low noise and high speed, the LT1567 APPLICATIO S features single-ended to differential conversion for direct driving of high speed differential input A/D converters. The Low Noise, High Speed Filters to 5MHz LT1567 operates from a total power supply voltage of 2.7V Low Noise Differential Circuits to 12V and supports signal-to-noise ratios above 100dB. Communication Channel or Roofing Filters Antialias or Reconstruction Filtering The LT1567 is available in an 8-lead MSOP package. Video Signal Processing , LTC, LT and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Single-Ended to Differential Conversion TYPICAL APPLICATIO 2MHz 3-Pole Antialias Filter with Single-Ended to Differential Conversion Frequency Response + V 12 R2 0.1F 536 6 C2 R1 R3 270pF 0 536 147 R4 1 8 V IN 147 6 +A IN 2 7 12 C1 0.1F C3 LT1567 ADC 270pF 3 6 270pF 18 A IN 4 5 24 R5 LTC1420 147 NOTE: 6dB GAIN RESULTS FROM 0.1F 30 SINGLE-ENDED TO DIFFERENTIAL 1567 TA01 CONVERSION 36 V 100 1M 10M 96dB DIFFERENTIAL SNR WITH 3V TOTAL SUPPLY FREQUENCY (Hz) R2 2.5MHz GAIN = R1 f 1567 TA01a 3dB R3 = R4 = R5, C1 = C2 = C3 1.82 1 f = = f 2.5MHz 3dB 3dB 2R2C2 4R3C3 1567fa 1 GAIN (dB) U ULT1567 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ORDER PART + Total Supply Voltage (V to V ) ............................ 12.6V TOP VIEW NUMBER Input Current (Note 2) ........................................ 25mA + OAOUT 1 8 V Operating Temperature Range (Note 3) OAIN 2 7 INVOUT LT1567CMS8 BYPASS 3 6 INVIN LT1567C ..............................................40C to 85C LT1567IMS8 V 4 5 DC BIAS LT1567I ...............................................40C to 85C MS8 PACKAGE MS8 PART MARKING 8-LEAD PLASTIC MSOP Specified Temperature Range (Note 4) T = 150C, = 200C/W JMAX JA LT1567C ..............................................40C to 85C LTWH LT1567I ...............................................40C to 85C LTWJ Storage Temperature Range ................. 65C to 150C Order Options Tape and Reel: Add TR Lead Temperature (Soldering, 10 sec).................. 300C Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF Lead Free Part Marking: