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The Amplifier LTC2063 Only Cost 1.3μA Current

2017-07-11 15:44:45 | 日記

Linear Technology Corporation, a subsidiary of Analog Devices, Inc. (Analog Devices, Inc.), introduced the LTC2063, a zero-drift operational amplifier that draws only 1.3μA of typical current at a 1.8V supply (up to 2μA ). This micropower amplifier keeps the accuracy of any discount: the maximum input offset voltage at 25 ° C is 5μV and the maximum drift is 0.06μV / ° C over the -40 ° C to 125 ° C range. At 25 ° C, the maximum input bias current is 15pA and is 100pA over the -40 ° C to 125 ° C range. These high-precision input features allow the use of very large feedback network resistors, thus maintaining low power consumption without compromising accuracy, even when the temperature rises.

Rail-to-rail inputs and outputs simplify the use of single power and expand the dynamic range. An integrated EMI filter provides 114dB EMI suppression at 1.8GHz. With the inherent low 1 / f noise of the zero drift architecture, the LTC2063 is ideal for amplifying and conditioning low frequency sensor signals in high temperature industrial and automotive systems as well as portable and wireless sensor network applications.

The LTC2063 is available in SOT-23 and SC70 packages. The SC70 version includes a shutdown mode that reduces current consumption to only 90 nA when the amplifier is in an unused state. This enables ultra low power duty cycle sensor applications. For example, the data sheet shows an accurate and low duty cycle oxygen sensor circuit that consumes less than 200nA of average current.

"The LTC2063 achieves a new and accurate measurement solution that can be placed anywhere," said Ross Yu, marketing manager, Dust Networks®. "Its ultra-low power and high precision make it a perfect companion device for Dust Networks SmartMesh wireless sensor networks , The scope of precision measurement can be extended to the previously impossible place.

An example is the DC2369A radio current detection reference board, which uses the LTC2063 and LTP? 5901-IPM SmartMesh IP ™ modules as well as other micropower components to produce an isolated floating current detection measurement that can run for years with a small battery platform. You can also buy it from electronic component distributor.

The LTC2063 operates from a supply voltage range of 1.7V to 5.25V and is fully specified over the -40 ° C to 125 ° C range. The one-piece purchase price is $ 1.50 per piece. For more information, please visit

Photo Description: Micropower Zero Drift Operational Amplifier Achieves 5μV Maximum VOS at 2μA Maximum IS

Performance Summary: LTC2063

• Low supply current: 2μA max

• Offset voltage: 5μV max

• Offset voltage drift: 0.02μV / ° C max

• Input bias current: 3pA typical, 30pA max at -40 ° C to 85 ° C, 100pA max at -40 ° C to 125 ° C

• Integrated EMI filter (114dB suppression at 1.8GHz)

• Stop current: 90nA typical, 170nA max

• Rail-to-rail input and output

1.7V to 5.25V operating supply voltage

AVOL: 140dB typical

• Low charge power for duty cycle operation applications

• Specified temperature range:

O -40 ° C to 85 ° C

O -40 ° C to 125 ° C

• 6-lead SC70, 5 lead TSOT-23 package

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