Features and Benefits
- Low Supply Current: 2μA Maximum
- Offset Voltage: 5μV Maximum
- Offset Voltage Drift: 0.02μV/°C Maximum
- Input Bias Current
- 3pA Typical
- 30pA Maximum, –40°C to 85°C
- 100pA Maximum, –40°C to 125°C
- Integrated EMI Filter (114dB Rejection at 1.8GHz)
- Shutdown Current: 170nA Maximum
- Rail-to-Rail Input and Output
- 1.7V to 5.25V Operating Supply Range
- AVOL: 140dB Typical
- Low-Charge Power-Up for Duty Cycled Applications
- Specified Temperature Ranges:
- –40°C to 85°C
- –40°C to 125°C
- 6-Lead SC70, 5-Lead TSOT-23 Packages
The LTC2063 is a single low power, zero-drift, 20kHz amplifier. The LTC2063 enables high resolution measurement at extremely low power levels.
Typical supply current is 1.4μA with a maximum of 2μA. The available shutdown mode has been optimized to minimize power consumption in duty-cycled applications and features low charge loss during power-up, reducing total system power.
The LTC2063’s self-calibrating circuitry results in very low input offset (5μV max) and offset drift (0.02μV/°C). The maximum input bias current is only 20pA and does not exceed 100pA over the full specified temperature range. The extremely low input bias current of the LTC2063 allows the use of high value power-saving resistors in the feedback network.
With its ultralow quiescent current and outstanding precision, the LTC2063 can serve as a signal chain building block in portable, energy harvesting and wireless sensor applications.
The LTC2063 is available in 6-lead SC70 and 5-lead TSOT- 23 packages and is fully specified over the –40°C to 85°C and –40°C to 125°C temperature ranges.
- Signal Conditioning in Wireless Mesh Networks
- Portable Instrumentation Systems
- Low-Power Sensor Conditioning
- Gas Detection
- Temperature Measurement
- Medical Instrumentation
- Energy Harvesting Applications
- Low Power Current Sensing
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The DC2369A demo circuit is a reference design that implements a wireless current sense solution using Analog Device's low power integrated circuits. The only external connection needed is the current to be measured, allowing this circuit to be inserted at any voltage level or isolation level.
The design combines components for current measurement, power management and wireless mesh networking. A micro-power zero-drift op amp (LTC2063) amplifies the voltage across a sense resistor. A 16-bit SAR ADC and precision reference (AD7988 and LT6656) digitize the reading. A SmartMesh IP™ wireless radio module (LTP5901-IPM) runs the application, provides the wireless mesh connectivity and communicates with a central network manager. A switching power supply (LTC3335) counts the cumulative charge drawn from the included battery while also regulating the output voltage for the rest of the application.
The DC2369A can be easily added to the DC9021B SmartMesh IP Starter Kit, or any SmartMesh IP network.
DC2369A Circuit Description - describes theory of operation of the DC2369A circuit
SmartMesh IP Starter Kits - other SmartMesh IP demo boards
SmartMesh IP On-Chip Software Development Kit - Enables users to develop application code to run on a SmartMesh IP Mote
|Software Name||Software Description||Weblink|
|"DC2126A.exe"||Demonstration GUI software that displays temperature and power source data sent wirelessly through the mesh. Runs on the user's Windows PC connected to a SmartMesh IP network manager.||Part of the SmartMesh IP SDK|
|FTDI Driver||USB-to-Serial drivers for communication with a SmartMesh IP manager (e.g. DC9001B SmartMesh IP Evaluation manager)||Download VCP from ftdichip.com|
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Models for the following parts are available in LTspice:
LTC2063 Companion Parts
Recommended Related Parts
Design Notes (1)
Press Release (1)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.