Overview
The LTC6373IDFM#TRPBF is a precision instrumentation amplifier produced by Analog Devices Inc. This component features fully differential outputs and is designed to achieve excellent common-mode rejection ratio (CMRR), offset voltage, gain error, gain drift, and gain nonlinearity. The LTC6373 is part of the LTC6373 series, which includes a closely-matched internal resistor network. It 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.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage Range | VS | 9 | 36 | V | |
| Supply Current (Active) | IS | 4.4 | 4.75 | 5.25 | mA |
| Supply Current (Shutdown) | IS | 220 | 600 | μA | |
| Input Bias Current | IB | 25 | pA | ||
| Common Mode Rejection Ratio (CMRR) | CMRR | 103 | dB | ||
| 3 dB Bandwidth | 4 | MHz | |||
| Slew Rate | SR | 12 | V/μs | ||
| Turn-On Time | tON | 10 | μs | ||
| Turn-Off Time | tOFF | 5 | μs | ||
| Gain Switching Time | 5 | μs |
Key Features
- Pin-Programmable Gains: The LTC6373 allows users to program the gain to one of seven available settings (G = 0.25, 0.5, 1, 2, 4, 8, 16 V/V) through a 3-bit parallel interface (A2 to A0). The 8th state puts the part in shutdown, reducing current consumption to 220 μA.
- Fully Differential Outputs: Designed to drive high-performance, differential-input ADCs with independently adjustable output common mode voltage via the VOCM pin.
- High Impedance Inputs: Features high impedance inputs, DC precision, low noise, low distortion, and high-speed differential ADC drive.
- Low Noise and Distortion: Offers low noise and distortion, making it ideal for optimizing data acquisition systems.
- Wide Temperature Range: Fully specified over the −40°C to +105°C temperature range.
Applications
- Data Acquisition Systems: Ideal for optimizing data acquisition systems due to its high precision and low noise characteristics.
- Biomedical Instrumentation: Suitable for biomedical applications requiring high accuracy and low noise.
- Test and Measurement Equipment: Used in test and measurement equipment for its precision and reliability.
- Differential ADC Drivers: Designed to drive high-performance, differential-input ADCs.
- Single-Ended-to-Differential Conversion: Can be used for converting single-ended signals to differential signals.
- Multiplexed Applications: Suitable for multiplexed applications due to its fast gain switching time.
Q & A
- What is the temperature range for the LTC6373IDFM#TRPBF?
The LTC6373IDFM#TRPBF is fully specified over the −40°C to +105°C temperature range.
- How can the gain be programmed in the LTC6373IDFM#TRPBF?
The gain can be programmed to one of seven available settings (G = 0.25, 0.5, 1, 2, 4, 8, 16 V/V) through a 3-bit parallel interface (A2 to A0).
- What is the typical supply current for the LTC6373IDFM#TRPBF in active mode?
The typical supply current in active mode is 4.75 mA.
- What is the shutdown current consumption for the LTC6373IDFM#TRPBF?
The shutdown current consumption is 220 μA).
- What is the common mode rejection ratio (CMRR) of the LTC6373IDFM#TRPBF?
The CMRR is typically 103 dB.
- What is the slew rate of the LTC6373IDFM#TRPBF?
The slew rate is 12 V/μs.
- What are the typical applications of the LTC6373IDFM#TRPBF?
Typical applications include data acquisition systems, biomedical instrumentation, test and measurement equipment, differential ADC drivers, single-ended-to-differential conversion, and multiplexed applications).
- How does the LTC6373IDFM#TRPBF maintain its bandwidth across different gain settings?
Unlike conventional voltage feedback amplifiers, the LTC6373 maintains nearly the same bandwidth across all its gain settings).
- What is the package type and size of the LTC6373IDFM#TRPBF?
The LTC6373IDFM#TRPBF is available in a 12-lead 4 mm × 4 mm DFN (LFCSP) package).
- How can the output common mode voltage be adjusted in the LTC6373IDFM#TRPBF?
The output common mode voltage is independently adjustable via the VOCM pin).
