The LTC6800 is a precision instrumentation amplifier with high CMRR and low input offset voltage. It uses charge balanced sampled data techniques to convert a differential input voltage into a single ended signal, which is then amplified by a zero-drift operational amplifier. The inputs and outputs are both rail-to-rail, making it suitable for applications such as thermocouple amplifiers, electronic scales, medical instrumentation, strain gauge amplifiers, and high resolution data acquisition.
The LTC6800 precision instrumentation amplifier offers rail‑to‑rail input and output, a typical CMRR of 116 dB independent of gain, and an input offset voltage below 100 µV with a drift under 250 nV/°C. It is available in MS8 and 3 mm × 3 mm × 0.8 mm DFN packages for space‑constrained designs.
Typical applications include thermocouple amplifiers, electronic scales, medical instrumentation, strain‑gauge amplifiers and high‑resolution data acquisition. Electrical characteristics such as a supply range of 2.7 V‑5.5 V, 12 mA no‑load supply current, 200 kHz gain bandwidth and 0.2 V/µs slew rate are detailed in the datasheet.
| CMRR | 116 dB |
|---|---|
| Input Offset Voltage | ≤ 100 µV |
| Input Offset Drift | ≤ 250 nV/°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Supply Current (No Load) | 12 mA typ |
| Gain Bandwidth | 200 kHz |
| Slew Rate | 0.2 V/µs |
| Package Options | MS8 and 3 mm × 3 mm × 0.8 mm DFN |
The LTC6800 typically provides a CMRR of 116 dB independent of gain.
It operates from 2.7 V to 5.5 V supply voltage.
The device is offered in MS8 and a 3 mm × 3 mm × 0.8 mm DFN package.
The typical no‑load supply current is 12 mA.