LTC2053/LTC2053-SYNC Precision, Rail-to-Rail, Zero-Drift, Resistor-Programmable Instrumentation Amplifier FeaTuresDescripTion n 116dB CMRR Independent of Gain The LTC®2053 is a high precision instrumentation ampli- n Maximum Offset Voltage: 10µV fier. The CMRR is typically 116dB with a single or dual n Maximum Offset Voltage Drift: 50nV/°C 5V supply and is independent of gain. The input offset n Rail-to-Rail Input voltage is guaranteed below 10µV with a temperature n Rail-to-Rail Output drift of less than 50nV/°C. The LTC2053 is easy to use; n 2-Resistor Programmable Gain the gain is adjustable with two external resistors, like a n Supply Operation: 2.7V to ±5.5V traditional op amp. n Typical Noise: 2.5µVP-P (0.01Hz to 10Hz) The LTC2053 uses charge balanced sampled data tech- n Typical Supply Current: 750µA niques to convert a differential input voltage into a single n LTC2053-SYNC Allows Synchronization to ended signal that is in turn amplified by a zero-drift op- External Clock erational amplifier. n Available in MS8 and 3mm × 3mm × 0.8mm DFN Packages The differential inputs operate from rail-to-rail and the single-ended output swings from rail-to-rail. The LTC2053 can be used in single-supply applications, as low as 2.7V. applicaTions It can also be used with dual ±5.5V supplies. The LTC2053 n requires no external clock, while the LTC2053-SYNC has Thermocouple Amplifiers n a CLK pin to synchronize to an external clock. Electronic Scales n Medical Instrumentation The LTC2053 is available in an MS8 surface mount pack- n Strain Gauge Amplifiers age. For space limited applications, the LTC2053 is avail- n High Resolution Data Acquisition able in a 3mm × 3mm × 0.8mm dual fine pitch leadless package (DFN). 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 applicaTionTypical Input Referred Offset vs InputCommon Mode Voltage (VS = 3V)Differential Bridge Amplifier 15 3V VS = 3V V 0.1µF REF = 0V 10 TA = 25°C R < 10k 8 2 – 5 7 LTC2053 OUT 0 3 + 6 G = 1000 5 R2 10k G = 100 1, 4 –5 R2 GAIN = 1+ G = 10 R1 INPUT OFFSET VOLTAGE (µV) –10 0.1µF G = 1 R1 10Ω –15 0 0.5 1.0 1.5 2.0 2.5 3.0 2053 TA01 INPUT COMMON MODE VOLTAGE (V) 2053 TA01b 2053syncfd For more information www.linear.com/LTC2053 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
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