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MIKROE-4486, Click Board, DAQ 3 Click4/28/2021
LTC6373
36V Fully-Differential Programmable-Gain Instrumentation Amplifier with 25pA Input Bias Current
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Overview
Features and Benefits
- Pin-Programmable Gains:
G = 0.25, 0.5, 1, 2, 4, 8, 16V/V + Shutdown - Fully Differential Outputs
- Gain Error: 0.012% (Max)
- Gain Error Drift: 1ppm/°C (Max)
- CMRR: 103dB (Min), G = 16
- Input Bias Current: 25pA (Max)
- Input Offset Voltage: 92μV (Max), G = 16
- Input Offset Voltage Drift: 1.7μV/°C (Max), G = 16
- –3dB Bandwidth: 4MHz, G = 16
- Input Noise Density: 8nV/√Hz, G = 16
- Slew Rate: 12V/μs, G = 16
- Adjustable Output Common Mode Voltage
- Quiescent Supply Current: 4.4mA
- Supply Voltage Range: ±4.5V to ±18V
- –40°C to 125°C Specified Temperature Range
- Small 12-Lead 4mm × 4mm DFN (LFCSP) Package
Product Details
The LTC6373 is a precision instrumentation amplifier with fully differential outputs which includes a closely matched internal resistor network to achieve excellent CMRR, offset voltage, gain error, gain drift, and gain nonlinearity. The user can easily program the gain to one of seven available settings through a 3-bit parallel interface (A2 to A0). The 8th state puts the part in shutdown which reduces the current consumption to 220μA. Unlike a conventional voltage feedback amplifier, the LTC6373 maintains nearly the same bandwidth across all its gain settings.
The LTC6373 features fully differential outputs to drive high performance, differential-input ADCs. The output common mode voltage is independently adjustable via the VOCM pin. The combination of high impedance inputs, DC precision, low noise, low distortion, and high-speed differential ADC drive makes the LTC6373 an ideal candidate for optimizing data acquisition systems.
The LTC6373 is available in a 12-lead 4mm × 4mm DFN (LFCSP) package and is fully specified over the −40°C to 125°C temperature range.
Applications
- Data Acquisition Systems
- Biomedical Instrumentation
- Test and Measurement Equipment
- Differential ADC Drivers
- Single-Ended-to-Differential Conversion
- Multiplexed Applications
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
Tools & Simulations
LTspice
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:
LTC6373
In-Amp Diamond Plot Tool
The Diamond Plot Tool is a web application that generates a configuration-specific Output Voltage Range vs. Input Common-Mode Voltage graph, also known as the Diamond Plot, for Analog Devices Instrumentation Amplifiers. Based on user inputs such as supply voltage, gain, and input signal range, the tool detects saturation and recommends in-amps for which the input signal is in-range and the configuration is valid. Avoid saturation, find the best in-amp for your design, and save time.
Product Recommendations
LTC6373 Companion Parts
Recommended Analog to Digital Converters
- 20-Bit, 1Msps, High Precision SAR ADC: LTC2378-18.
- 4-Channel, 24-Bit, Continuous Time, 1.5Msps Sigma-Delta ADC: AD7134.
- 18-Bit, 1.6Msps, High Precision SAR ADC: LTC2379-18.
- 18-Bit, 2Msps, High Precision SAR ADC: AD4003.
- 8-/4-/1-Channel, 24-Bit, SImultaneous-Sampling, 256ksps Sigma-Delta ADC: AD7768, AD7768-4, AD7768-1.
- 18-Bit, 2Msps, Data Acquisition uModule: ADAQ4003.
Design Resources
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTC6373HDFM#PBF | Material Declaration | Reliability Data | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | |
| LTC6373HDFM#TRPBF | Material Declaration | Reliability Data | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | |
| LTC6373IDFM#PBF | Material Declaration | Reliability Data | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | |
| LTC6373IDFM#TRPBF | Material Declaration | Reliability Data | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | |
| Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
LTC6373 Discussions
RE: AD4134 driven by LTC6373 - do I need clamping diodes?
5 week(s) ago in Precision ADCs
Sample & Buy
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.