LT6372-0.2 Precision, Funneling Instrumentation Amplifier with Level Shift and Output Clamping FEATURES DESCRIPTION n Single Gain Set Resistor: G = 0.2 to >200 The LT 6372-0.2 is a gain programmable, high precision n Excellent DC Precision funneling instrumentation amplifier that delivers industry n Input Offset Voltage: 60V Max leading DC precision. This high precision enables smaller n Input Offset Voltage Drift: 0.6V/C Max signals to be sensed and eases calibration requirements, n Low Gain Error: 0.012% Max (G = 0.2) particularly over temperature. The LT6372-0.2 incorpo- n Low Gain Drift: 35ppm/C Max (G > 0.2) rates features into the LT6370 which further improve n High DC CMRR: 80dB Min (G = 0.2) accuracy and simplify interfacing to an ADC. n Integrated Output Clamps The LT6372-0.2 uses a proprietary high performance n Integrated Output Level Shift bipolar process which enables industry leading accu- n Input Bias Current: 800pA Max racy coupled with exceptional long-term stability. The n 4MHz 3dB Bandwidth (G = 0.2) LT6372-0.2 is laser trimmed for very low input offset volt- n Low Noise: age (60V) and high CMRR (80dB, G=0.2). Proprietary n 0.1Hz to 10Hz Noise: 0.2V P-P on-chip test capability allows the gain drift (35ppm/C) n 1kHz Voltage Noise: 7nV/Hz to be guaranteed with automated testing. n Integrated Input RFI Filter n The LT6372-0.2s difference amplifier uses a split ref- Wide Supply Range 4.75V to 35V n erence configuration which simplifies level shifting the Temperature Ranges: 40C to 85C and 40C to 125C n amplifiers output to the center of the ADCs input range. MS16E and 20-Lead 3mm 4mm QFN Packages Output clamp pins are also provided to limit the voltage which can be applied to an ADCs input. EMI filtering is APPLICATIONS integrated on the LT6372-0.2s inputs to maintain accu- n Bridge Amplifier racy in the presence of harsh RF interference. n Data Acquisition The LT6372-0.2 is available in a compact MS16E or a 20-pin n Thermocouple Amplifier 3mm x 4mm QFN. The LT6372-0.2 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 TYPICAL APPLICATION LT6372-0.2 Funnels and Level Shifts 10V Inputs to 5V ADC Input Range 12.5 4.5V V IN 10.0 V 15V V LTC6655-5 V OUT 15V IN OUT 2.5V 7.5 4V 2.5V + + V 5.0 0.5V REF2 10V REF VDD 2.5 ADC INPUT 91 V CLHI OUT RANGE LT6372-0.2 0 CLLO LTC2367-16 0V 10nF 2.5 REF1 V 20V IN 5.0 V GND 10V 7.5 15V 10.0 637202 TA01a 10s/DIV 12.5 637202 TA01b Rev. 0 1 Document Feedback For more information www.analog.com VOLTAGE (V)LT6372-0.2 ABSOLUTE MAXIMUM RATINGS (Note 1) + Total Supply Voltage (V to V ) .................................36V Output Short-Circuit Duration .............Thermally Limited Input Voltage (+IN, IN, +R , +R , R , R , Output Current .......................................................80mA G,S G,F G,S G,F + REF1, REF2, CLHI, CLLO) ... (V 0.3V) to (V + 0.3V) Operating and Specified Temperature Range Differential Input Voltage I-Grade.................................................40C to 85C (+IN to IN) .........................................................36V H-Grade ............................................. 40C to 125C (REF1 to REF2) .....................................................8V Maximum Junction Temperature .......................... 150C Input Current Storage Temperature Range .................. 65C to 150C (+R , +R , R , R ) ..................................2mA Lead Temperature (Soldering, 10 sec) ...................300C GS GF GS GF (+IN, IN, CLLO) .............................................. 10mA (REF1, REF2, CLHI) ..........................................10mA PIN CONFIGURATION TOP VIEW 20 19 18 17 TOP VIEW 1 16 NIC NIC R 1 16 +R G,F G,F 2 R 15 +R IN 2 15 REF2 G,S G,S NIC 3 14 NIC + NIC 3 14 V 4 IN 13 REF2 21 17 + +IN 5 12 V V NIC 4 13 OUTPUT 6 NIC 11 OUTPUT +IN 5 12 REF1 CLLO 7 10 REF1 8 V 9 CLHI 6 11 NIC NIC MSE PACKAGE 7 8 9 10 16-LEAD PLASTIC MSOP = 35C/W JA EXPOSED PAD (PIN 17) MUST FLOAT OR + BE CONNECTED TO V IN ADDITION TO PIN 12 UDC PACKAGE 20-LEAD (3mm 4mm) PLASTIC QFN = 52C/W JA EXPOSED PAD (PIN 21) IS CONNECTED TO V (PIN 7) (PCB CONNECTION OPTIONAL) ORDER INFORMATION TUBE TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT6372IMSE-0.2 PBF LT6372IMSE-0.2 TRPBF 637202 16-Lead Plastic MSOP 40C to 85C LT6372HMSE-0.2 PBF LT6372HMSE-0.2 TRPBF 637202 16-Lead Plastic MSOP 40C to 125C LT6372IUDC-0.2 PBF LT6372IUDC-0.2 TRPBF LHHQ 20-Lead (3mm 4mm) Plastic QFN 40C to 85C LT6372HUDC-0.2 PBF LT6372HUDC-0.2 TRPBF LHHQ 20-Lead (3mm 4mm) Plastic QFN 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 V R G,S CLLO R G,F DNC +R G,F +R CLHI G,S