LT5401 Matched Resistor Network for Precision Amplifiers FEATURES DESCRIPTION n Optimized for Use with Fully Differential and The LT 5401 is an ultra-precision matched resistor net- Difference Amplifiers work optimized for use with fully differential or differ- n Excellent Matching ence amplifiers, and with excellent matching specifica- n 0.003% Resistor Ratio Matching (Max) tions over the entire temperature range. The LT5401 n 96.5dB CMRR (Min) contains two strings of matched resistors, each provid- n 25ppm Gain Error (Max) ing three tap points. The resulting matched ratios are n 0.5ppm/C Matching Temperature Drift (Max) well suited for precisely setting a differential amplifiers n 35V Operating Voltage (36V Abs Max) gainorattenuation. n 8ppm/C Absolute Resistor Value Temperature Drift When used to configure differential or difference gain, the n Long-Term Stability: <8ppm at 6500Hours LT5401s excellent ratio matching ensures high CMRR, n ESD Protected Inputs low gain errors and low gain drift to levels far too dif- n 55C to 150C Operating Temperature ficult to achieve with discrete passive components. This n 10-Lead MSOP Package high level of precision reduces calibration requirements in many applications and offers 10 times higher perfor- mance than a 0.01% discrete solution. APPLICATIONS The LT5401 is available in a compact 10-lead MSOP pack- n Fully Differential Amplifiers age with exposed paddle for improved thermal perfor- n Difference Amplifiers mance over a temperature range of 55C to 150C. n Reference Dividers n All registered trademarks and trademarks are the property of their respective owners. Precision Summing/Subtracting TYPICAL APPLICATION Using LT5401 with a Fully Differential Amplifier for Input Common Mode Rejection Single-Ended to Differential Conversion, G = 1 Ratio vs Frequency 100 LT5401A OUT1 95 700 90 T1C 85 350 80 T1B + 5V 75 FB 350 70 700 +IN IN1 T1A V + OUT V OCM 65 ADA4932 700 IN2 T2A IN 60 +V OUT + FB 350 55 V T2B IN 5V 50 100k 1M 10M 100M 350 T2C FREQUENCY (Hz) 5401 TA01b 700 OUT2 5401 TA01a Rev. 0 1 Document Feedback For more information www.analog.com CMRR (dB)LT5401 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) Total Voltage IN1 to EPAD or IN2 to EPAD ..............36V TOP VIEW Total Voltage IN1 to OUT1 or IN2 to OUT2 ..............36V IN1 1 10 IN2 OUT1 2 9 OUT2 Total Voltage IN1 to T1A or OUT1 to T1C ................ 12V 11 T1C 3 8 T2C T1B 4 7 T2B Total Voltage IN2 to T2A or OUT2 to T2C ................ 12V T1A 5 6 T2A Total Voltage T1B to T1A or T1C ................................6V MS10E PACKAGE 10-LEAD PLASTIC MSOP Total Voltage T2B to T2A or T2C ...............................6V Maximum Current T1A, T1B, T1C, T2A, T2B, T2C ........9mA = 40C/W, = 20C/W JA JC EXPOSED PAD (PIN 11) IS ELECTRICALLY CONNECTED TO Operating Temperature Range (Note 2) THE INPUT ESD AND MUST BE SOLDERED TO THE PCB, TYPICALLY CONNECTED TO GROUND PLANE LT5401I ................................................40C to 85C LT5401H ............................................ 40C to 125C LT5401MP ......................................... 55C to 150C Specified Temperature Range (Note 2) LT5401I ................................................40C to 85C LT5401H ............................................ 40C to 125C LT5401MP ......................................... 55C to 150C Maximum Junction Temperature (Note 3)............. 150C Storage Temperature Range ................... 65C to 150C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT5401AIMSE PBF LT5401AIMSE TRPBF LTHHJ 10-Lead Plastic MSOP 40C to 85C LT5401IMSE PBF LT5401IMSE TRPBF LTHHJ 10-Lead Plastic MSOP 40C to 85C LT5401AHMSE PBF LT5401AHMSE TRPBF LTHHJ 10-Lead Plastic MSOP 40C to 125C LT5401HMSE PBF LT5401HMSE TRPBF LTHHJ 10-Lead Plastic MSOP 40C to 125C LT5401MPMSE PBF LT5401MPMSE TRPBF LTHHJ 10-Lead Plastic MSOP 55C to 150C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with TRMPBF suffix. Rev. 0 2 For more information www.analog.com