The LTC2053/LTC2053-SYNC is a high precision instrumentation amplifier from Linear Technology. The amplifier has a CMRR of 116dB and can be powered by a single or dual 5V supply. The gain is adjustable with two external resistors.
The LTC2053 family provides a precision, zero‑drift instrumentation amplifier that operates from a single 2.7 V supply up to ±5.5 V dual supplies. It offers rail‑to‑rail input and output, a typical CMRR of 116 dB independent of gain, and an input offset voltage guaranteed below 10 µV with a drift of less than 50 nV/°C. Gain is set with two external resistors, and the LTC2053‑SYNC variant adds a CLK pin for external clock synchronization.
Typical applications include thermocouple amplification, electronic scales, medical instrumentation, strain‑gauge amplifiers, and high‑resolution data acquisition. The device is offered in an 8‑lead MS8 plastic‑lead package and a 3 mm × 3 mm × 0.8 mm DFN package for space‑constrained designs.
| Common‑Mode Rejection Ratio (CMRR) | 116 dB (typical) |
|---|---|
| Input Offset Voltage | ≤ 10 µV (max) |
| Input Offset Voltage Drift | ±50 nV/°C |
| Supply Voltage Range | 2.7 V to ±5.5 V |
| Gain Error | 0.001 % (typical) |
| Gain Nonlinearity | 3 ppm (typical) |
| Op‑Amp Gain Bandwidth | 200 kHz |
| Slew Rate | 0.2 V/µs |
| Output Voltage Swing (high, RL=2 kΩ) | 2.85 V – 2.94 V |
The LTC2053 typically provides a common‑mode rejection ratio of 116 dB.
No, the standard LTC2053 does not need an external clock; the LTC2053‑SYNC version adds a CLK pin for synchronization.
It operates from a single 2.7 V supply up to ±5.5 V dual supplies.
Gain is programmable with two external resistors using the formula Gain = 1 + R2/R1.