LTC6800 Rail-to-Rail, Input and Output, Instrumentation Amplifier FeaTures DescripTion n 116dB CMRR Independent of Gain The LTC®6800 is a precision instrumentation amplifier. n Maximum Offset Voltage: 100µV The CMRR is typically 116dB with a single 5V supply and is n Maximum Offset Voltage Drift: 250nV/°C independent of gain. The input offset voltage is guaranteed n –40°C to 125°C Operation below 100µV with a temperature drift of less than 250nV/°C. n Rail-to-Rail Input Range The LTC6800 is easy to use; the gain is adjustable with n Rail-to-Rail Output Swing two external resistors, like a traditional op amp. n Supply Operation: 2.7V to 5.5V The LTC6800 uses charge balanced sampled data tech- n Available in MS8 and 3mm × 3mm × 0.8mm niques to convert a differential input voltage into a single DFN Packages ended signal that is in turn amplified by a zero-drift operational amplifier. applicaTions n The differential inputs operate from rail-to-rail and the Thermocouple Amplifiers n single ended output swings from rail-to-rail. The LTC6800 Electronic Scales n is available in an MS8 surface mount package. For space Medical Instrumentation n limited applications, the LTC6800 is available in a 3mm × Strain Gauge Amplifiers n 3mm × 0.8mm dual fine pitch leadless package (DFN). High Resolution Data Acquisition L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical applicaTion Typical Input Referred Offset vs InputHigh Side Power Supply Current SenseCommon Mode Voltage (VS = 3V) 1.5mΩ 15 V V S = 3V REGULATOR VREF = 0V 10 TA = 25°C 2 – 8 OUT 5 7 LTC6800 100mV/A 3 + OF LOAD 6 10k CURRENT (µV) 0 5 V OS G = 1000 4 G = 100 0.1µF I –5 LOAD LOAD G = 10 150Ω –10 G = 1 6800 TA01 –15 0 0.5 1 1.5 2 2.5 3 INPUT COMMON MODE VOLTAGE (V)6800 TA02 6800fb Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Related Parts Typical Application
