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LTC6373
RECOMMENDED FOR NEW DESIGNS36V Fully-Differential Programmable-Gain Instrumentation Amplifier with 25pA Input Bias Current
- Part Models
- 5
- 1ku List Price
- Starting From $4.96
Part Details
- Pin-Programmable Gains:
G = 0.25, 0.5, 1, 2, 4, 8, 16V/V + Shutdown - Fully Differential Outputs
- Gain Error: 0.015% (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
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 220 μA. 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 4 mm × 4 mm DFN (LFCSP) package and is fully specified over the −40°C to +105°C temperature range.
Applications
- Data Acquisition Systems
- Biomedical Instrumentation
- Test and Measurement Equipment
- Differential ADC Drivers
- Single-Ended-to-Differential Conversion
- Multiplexed Applications
Documentation
Data Sheet 1
Application Note 1
Technical Articles 1
Video 3
3rd Party Solutions 1
Webcast 4
Device Drivers 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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC6373HDFM#TRPBF | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | ||
| LTC6373IDFM#PBF | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | ||
| LTC6373IDFM#TRPBF | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | ||
| LTC6373SDFM#PBF | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) | ||
| LTC6373SDFM#TRPBF | 12-Lead Plastic Side Solderable DFN (4mm × 4mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
Mar 30, 2023 - 23_0036 Obsoleting the H-grade of LTC6373 |
||
| LTC6373HDFM#TRPBF | ||
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Hardware Ecosystem
-
Ground-Referenced Measurement, Differential Voltage Circuit -
18-bit Differential Voltage Measurement
| Parts | Product Life Cycle | Description |
|---|---|---|
| Precision Signal Chain µModule Solutions 1 | ||
| ADAQ4003 | RECOMMENDED FOR NEW DESIGNS | 18-Bit, 2 MSPS, μModule Data Acquisition Solution |
| Simultaneous Sampling A/D Converters 3 | ||
| AD7768 | RECOMMENDED FOR NEW DESIGNS | 8-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW |
| AD7768-4 | RECOMMENDED FOR NEW DESIGNS | 4-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW |
| AD7134 | PRODUCTION | 24-Bit, 4-Channel Simultaneous Sampling 1.5 MSPS Precision Alias Free ADC |
| Single Channel A/D Converters 4 | ||
| LTC2378-18 | PRODUCTION | 18-Bit, 1Msps, Low Power SAR ADC with 102dB SNR |
| LTC2379-18 | PRODUCTION | 18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR |
| AD4003 | PRODUCTION | 18-Bit, 2 MSPS/1 MSPS/500 kSPS, Easy Drive, Differential SAR ADCs |
| AD7768-1 | RECOMMENDED FOR NEW DESIGNS | DC to 204 kHz, Dynamic Signal Analysis, Precision 24-Bit ADC with Power Scaling |
Tools & Simulations
LTspice 2
- Density Optimized LTspice Signal Chain Simulation
- LTC6373/LTC6655/ADG5421F Demo Circuit - Low Latency Programmable Gain Measurement for AD4630-24
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.
Open ToolSignal Chain Designer - BETA
Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC6373 Programmable Gain Instrumentation Amplifier