LT6370 25V, 0.3V/C, Low Noise Instrumentation Amplifier FEATURES DESCRIPTION n Single Gain Set Resistor: G = 1 to >1000 The LT 6370 is a gain programmable, high precision n Excellent DC Precision instrumentation amplifier that delivers industry leading n Input Offset Voltage: 25V Max DC precision. This high precision enables smaller signals n Input Offset Voltage Drift: 0.3V/C Max to be sensed and eases calibration requirements, particu- n Low Gain Error: 0.01% Max (G = 1) larly over temperature. n Low Gain Drift: 30ppm/C Max (G > 1) The LT6370 uses a proprietary high performance bipolar n High DC CMRR: 94dB Min (G = 1) process which enables industry leading accuracy coupled n Input Bias Current: 400pA Max with exceptional long-term stability. The LT6370 is laser n 3.1MHz 3dB Bandwidth (G = 1) trimmed for very low input offset voltage (25V) and high n Low Noise: CMRR (94dB, G=1). Proprietary on-chip test capability n 0.1Hz to 10Hz Noise: 0.2V P-P allows the input offset voltage drift (0.3V/C) and gain n 1kHz Voltage Noise: 7nV/Hz drift (30ppm/C) to be guaranteed with automated testing n Integrated Input RFI Filter on the S8E package. n Wide Supply Range 4.75V to 35V n In addition to excellent DC specifications, the LT6370s Specified Temperature Ranges: wide bandwidth (3.1MHz, G=1) and fast settling time 40C to 85C, 40C to 125C n allow it to operate well in multiplexed applications. EMI MS8, S8E and 10-pin 3mm 3mm DFN Packages filtering is integrated on the LT6370s inputs to maintain accuracy in the presence of harsh RF interference. APPLICATIONS The LT6370 is available in a compact 8-pin MSOP or S8E n Bridge Amplifier which use the conventional instrumentation amplifier n Data Acquisition pin-out as well as a 10-pin 3mm 3mm DFN. The S8E n Multiplexed Signals package is also offered as an A grade which has superior n Thermocouple Amplifier DC specifications. The LT6370 is fully specified over the n Strain Gauge Amplifier 40C to 85C and 40C to 125C temperature ranges. n Medical Instrumentation All registered trademarks and trademarks are the property of their respective owners. n Transducer Interfaces n Differential to Single-Ended Conversion Distribution of Input Offset TYPICAL APPLICATION Voltage Drift, MS8 Package 50 + T = 40C TO 85C 10V A 45 117 UNITS 40 350 350 R G 35 LT6370A 243 30 6370 TA01a REF 350 25 350 20 15 PRECISION BRIDGE TRANSDUCER LT6370A MONOLITHIC 10 INSTRUMENTATION AMPLIFIER G = 100, R = 0.1%, 10ppm TC 5 G 0 0.5 0.4 0.3 0.2 0.1 0 0.1 0.2 0.3 0.4 0.5 INPUT OFFSET VOLTAGE DRIFT (V/C) 6370 TA01b Rev. 0 1 Document Feedback For more information www.analog.com PERCENTAGE OF UNITS (%)LT6370 ABSOLUTE MAXIMUM RATINGS (Note 1) + Total Supply Voltage (V to V ) .................................36V Output Current .......................................................80mA Input Voltage (+IN, IN, Operating and Specified Temperature Range + +R , R , REF) .................. (V 0.3V) to (V + 0.3V) I-Grade.................................................40C to 85C G G Differential Input Voltage (+IN to IN) .....................36V H-Grade ............................................. 40C to 125C Input Current (+R , R ) .......................................2mA Maximum Junction Temperature .......................... 150C G G Input Current (+IN, IN) ...................................... 10mA Storage Temperature Range .................. 65C to 150C Input Current (REF) .............................................10mA Lead Temperature (Soldering, 10 sec) ...................300C Output Short-Circuit Duration .............Thermally Limited PIN CONFIGURATION TOP VIEW TOP VIEW R 1 10 +R R 1 8 +R G G G G TOP VIEW NC 2 9 NC + IN 2 7 V R 1 8 +R G G + + IN 3 11 8 V 9 IN 2 7 V +IN 3 6 OUTPUT +IN 3 6 OUTPUT +IN 4 7 OUTPUT + V 5 REF 4 V REF 4 5 V 5 6 REF MS8 PACKAGE S8E PACKAGE 8-LEAD MS DD PACKAGE 8-LEAD PLASTIC SOIC = 163C/W, = 40C/W 10-LEAD (3mm 3mm) PLASTIC DFN JA JC = 33C/W, = 5C/W JA JC = 43C/W, = 5.5C/W JA JC EXPOSED PAD (PIN 9) MUST FLOAT EXPOSED PAD (PIN 11) IS CONNECTED TO V (PIN 5) + OR BE CONNECTED TO V IN ADDITION TO PIN 7 (PCB CONNECTION OPTIONAL) ORDER INFORMATION TUBE TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT6370IS8E PBF LT6370IS8E TRPBF 6370 8-Lead Plastic SO 40C to 85C LT6370HS8E PBF LT6370HS8E TRPBF 6370 8-Lead Plastic SO 40C to 125C LT6370IMS8 PBF LT6370IMS8 TRPBF LTGZP 8-Lead Plastic MSOP 40C to 85C LT6370HMS8 PBF LT6370HMS8 TRPBF LTGZP 8-Lead Plastic MSOP 40C to 125C LT6370IDD PBF LT6370IDD TRPBF LGZN 10-Lead (3mm 3mm) Plastic DFN 40C to 85C LT6370HDD PBF LT6370HDD TRPBF LGZN 10-Lead (3mm 3mm) Plastic DFN 40C to 125C LT6370AIS8E PBF LT6370AIS8E TRPBF 6370 8-Lead Plastic SO 40C to 85C LT6370AHS8E PBF LT6370AHS8E TRPBF 6370 8-Lead Plastic SO 40C to 125C 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