LT1102

U U LT1102 High Speed, Precision, JFET Input Instrumentation Amplifier (Fixed Gain = 10 or 100) FEATURES ■ Slew Rate: 30V/μs ■ Gain-Bandwidth Product: 35MHz ■ Settling Time (0.01%): 3μs ■ Overdrive Recovery: 0.4μs ■ Gain Error: 0.05% Max ■ Gain Drift: 5ppm/°C ■ Gain Nonlinearity: 16ppm Max ■ Offset Voltage (Input + Output): 600μV Max – Drift with Temperature: 2μV/°C ■ Input Bias Current: 40pA Max ■ Input Offset Current: 40pA Max – Drift with Temperature (to 70°C): 0.5pA/°C U APPLICATIO S ■ Fast Settling Analog Signal Processing ■ Multiplexed Input Data Acquisition Systems ■ High Source Impedance Signal Amplification from High Resistance Bridges, Capacitance Sensors, Photodetector Sensors ■ Bridge Amplifier with < 1Hz Lowpass Filtering DESCRIPTIO The LT®1102 is the first fast FET input instrumentation amplifier offered in the low cost, space saving 8-pin packages. Fixed gains of 10 and 100 are provided with excellent gain accuracy (0.01%) and non-linearity (3ppm). No external gain setting resistor is required. Slew rate, settling time, gain-bandwidth product, overdrive recovery time are all improved compared to competitive high speed instrumentation amplifiers. Industry best speed performance is combined with impressive precision specifications: less than 10pA input bias and offset currents, 180μV offset voltage. Unlike other FET input instrumentation amplifiers, on the LT1102 there is no output offset voltage contribution to total error, and input bias currents do not doub...