LT1102 Series
High Speed, Precision, JFET Input Instrumentation Amplifier (Fixed Gain = 10 or 100)
Manufacturer: Analog Devices
Catalog
High Speed, Precision, JFET Input Instrumentation Amplifier (Fixed Gain = 10 or 100)
Key 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 MaxDrift with Temperature: 2µV/°C
• Drift with Temperature: 2µV/°C
• Input Bias Current: 40pA Max
• Input Offset Current: 40pA MaxDrift with Temperature (to 70°C): 0.5pA/°C
• Drift with Temperature (to 70°C): 0.5pA/°C
Description
AI
The LT1102 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 double with every 10°C rise in temperature. Indeed, at 70°C ambient temperature the input bias current is only 40pA.ApplicationsFast Settling Analog Signal ProcessingMultiplexed Input Data Acquisition SystemsHigh Source Impedance Signal Amplification from High Resistance Bridges, Capacitance Sensors, Photodetector SensorsBridge Amplifier with < 1Hz Lowpass Filtering
