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The AMP02 is the first precision instrumentation amplifier available in an 8-pin package. Gain of the AMP02 is set by a single external resistor, and can range from 1 to 10,000. No gain set resistor is required for unity gain. The AMP02 includes an input protection network that allows the inputs to be taken 60 V beyond either supply rail without damaging the device.
Laser trimming reduces the input offset voltage to under 100 mV.Output offset voltage is below 4 mV and gain accuracy is better than 0.5% for gain of 1000. PMI's proprietary thin-film resistor process keeps the gain temperature coefficient under 50 ppm/°C. Due to the AMP02's design, its bandwidth remains very high over a wide range of gain. Slew rate is over 4 V/ms making the AMP02 ideal for fast data acquisition systems.
A reference pin is provided to allow the output to be referenced to an external dc level. This pin may be used for offset correction or level shifting as required. In the 8-pin package, sense is internally connected to the output.
For an instrumentation amplifier with the highest precision, consult the AMP01 data sheet. For the highest input impedance and speed, consult the AMP05 data sheet.
AMP02 Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V Common-Mode Input Voltage . [(V) 60 V] to [(V+) + 60 V] Differential Input Voltage . . . . [(V) 60 V] to [(V+) + 60 V] Output Short-Circuit Duration . . . . . . . . . . . . . . .Continuous Operating Temperature Range . . . . . . . . . . . . 40°C to +85°C Storage Temperature Range . . . . . . . . . . . . 65°C to +150°C Function Temperature Range . . . . . . . . . . . 65°C to +150°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +300°C
AMP02 Features
Low Offset Voltage: 100 V max Low Drift: 2 V/8C max Wide Gain Range 1 to 10,000 High Common-Mode Rejection: 115 dB min High Bandwidth (G = 1000): 200 kHz typ Gain Equation Accuracy: 0.5% max Single Resistor Gain Set Input Overvoltage Protection Low Cost Available In Die Form
AMP02 Typical Application
Differential Amplifier Strain Gauge Amplifier Thermocouple Amplifier RTD Amplifier Programmable Gain Instrumentation Amplifier Medical Instrumentation Data Acquisition Systems