LT1101SW
High Precision, Micropower, Single Supply Instrumentation Amplifier (Fixed Gain = 10 or 100)
peculiarity
- Gain error: maximum 0.04%.
- Gain nonlinearity: 0.0008% (8 ppm drift) maximum
- Gain drift: 4 PPM/°C (maximum)
- Power supply current: maximum 105μA
- Offset voltage: maximum 160μV
- Offset voltage drift: typical value of 0.4μV/°C
- Offset current: maximum 600pA
- Common mode repression ratio (CMRR), G = 100:100 dB
- 0.1Hz to 10Hz noise: 0.9μVp-P: 2.3pAp-P typical
- Gain bandwidth product: 250kHz sensitivity
- Single or dual power supply
- Surface mount package
description
™The LT 1101 sets the following milestones: (1) it is the first low-power instrumented amplifier, (2) it is the first single-power instrumented amplifier, and (3) it is the first instrumented amplifier with 10 functions and/or fixed income100 in a low-cost, space-saving 8-pin package.
The LT1101 is fully self-contained: no external gain set resistor. The LT1101 combined with another error of 0.008% micropower operation (75μA power supply current), 3ppm linear gain, and gain drift of 1PPM/°C. The output ensures that a driver with a 2K load up to 10V has excellent gain accuracy.
Other precision specifications are also outstanding: 50μV input offset voltage, 130pA input bias current, and low drift (0.4μV/°C and 0.7pA/°C). Moreover, unlike other instrument-type amplifiers, there is no contribution to the total error of output offset voltage.
One fully equipped version, providing ± 15V dual power supply and 5V single power supply operation. The LT1101 can be operated from a single lithium battery or two nickel-cadmium batteries. Although the battery voltage drops to 1.8V, the LT1101 still maintains its gain accuracy. In single-power applications, input and output voltage swings are several millivolts on the ground. For oscillation, the power consumption pulls down, and the resistor grounds need to output external output to absorb current.