Overview
The LTC2053IMS8#TRPBF, produced by Analog Devices Inc., is a high precision instrumentation amplifier. It is renowned for its exceptional common-mode rejection ratio (CMRR) of typically 116dB, which remains independent of the gain setting. This amplifier is designed to operate with either a single or dual 5V supply and features rail-to-rail input and output capabilities. The LTC2053 uses charge-balanced sampled data techniques to convert differential input voltages into a single-ended signal, which is then amplified by a zero-drift operational amplifier.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| CMRR | 116 dB | - |
| Maximum Offset Voltage | 10 μV | - |
| Maximum Offset Voltage Drift | 50 nV/°C | - |
| Supply Operation | 2.7V to ±5.5V | - |
| Typical Noise (0.01Hz to 10Hz) | 2.5 μV P-P | - |
| Typical Supply Current | 750 μA | - |
| Internal Op Amp Gain Bandwidth | 200 kHz | - |
| Slew Rate | 0.2 V/μs | - |
| Operating Temperature Range | -40°C to 85°C (I Grade), -40°C to 125°C (H Grade) | - |
| Package | 8-Lead MSOP, 3mm × 3mm × 0.8mm DFN | - |
Key Features
- High CMRR: Typically 116dB, independent of gain.
- Low Offset Voltage: Maximum offset voltage of 10μV with a drift of less than 50nV/°C.
- Rail-to-Rail Input and Output: Differential inputs and single-ended output operate from rail-to-rail.
- Programmable Gain: Gain is adjustable with two external resistors.
- Low Noise: Typical noise of 2.5μV P-P (0.01Hz to 10Hz).
- Low Supply Current: Typical supply current of 750μA.
- Synchronization Capability: LTC2053-SYNC version allows synchronization to an external clock.
Applications
- Thermocouple Amplifiers: Ideal for precise temperature measurements.
- Electronic Scales: Used in weight measurement systems requiring high accuracy.
- Medical Instrumentation: Suitable for medical devices that demand high precision and low noise.
- Strain Gauge Amplifiers: Used in applications involving strain gauge sensors.
- High Resolution Data Acquisition: Applicable in systems requiring high resolution and precision data acquisition.
Q & A
- What is the typical CMRR of the LTC2053?
The typical CMRR of the LTC2053 is 116dB, independent of gain.
- What is the maximum offset voltage of the LTC2053?
The maximum offset voltage is 10μV.
- What is the temperature drift of the offset voltage?
The temperature drift of the offset voltage is less than 50nV/°C.
- What are the supply voltage options for the LTC2053?
The LTC2053 can operate with a single supply from 2.7V to 5V or dual supplies up to ±5.5V.
- How is the gain of the LTC2053 adjusted?
The gain is adjustable with two external resistors, similar to a traditional op-amp.
- What are the typical noise and supply current of the LTC2053?
The typical noise is 2.5μV P-P (0.01Hz to 10Hz), and the typical supply current is 750μA.
- Does the LTC2053 require an external clock?
No, the LTC2053 does not require an external clock, but the LTC2053-SYNC version allows synchronization to an external clock.
- What are the available package options for the LTC2053?
The LTC2053 is available in 8-Lead MSOP and 3mm × 3mm × 0.8mm DFN packages.
- What are some common applications of the LTC2053?
Common applications include thermocouple amplifiers, electronic scales, medical instrumentation, strain gauge amplifiers, and high resolution data acquisition systems.
- What is the operating temperature range of the LTC2053?
The operating temperature range varies by grade: -40°C to 85°C for the I Grade and -40°C to 125°C for the H Grade.
