The ISL70517SEH is a high performance, differential input, single-ended output instrumentation amplifier designed for precision analog-to-digital conversion applications.It operates from a supply range of 8V (±4V) to 36V (±18V) and has a differential input voltage range of up to ±30V.The output stage has rail-to-rail output drive capability optimized for ADC driver applications.The output stage is powered by a separate power supply.This feature enables the output to be driven by the same low-voltage supply that powers the ADC, providing protection for both the high-voltage signal and the low-voltage digital circuitry.Its versatility makes it suitable for a wide range of general purpose applications.Other features not found in other instrumentation amplifiers enable high levels of DC accuracy and excellent AC performance.
The gain of the ISL70517SEH is through two external resistors, RINand RFBProgramming is 0.1 to 10,000。The gain accuracy is determined by RINand RFBThe match decision。The gain resistor has a Kelvin sense function to eliminate gain errors due to PC trace resistance.The input and output stages have separate supply pins that allow input signals on high common-mode voltages to be level shifted to lower voltage devices, such as A/D converters.The rail-to-rail output stage can be powered from the same supply as the ADC, maintaining the maximum input dynamic range of the ADC and eliminating ADC input overdrive.
The ISL70517SEH is available in a 24 LD ceramic flat package and has an operating temperature range of -55°C to +125°C.
Key features
Rail-to-rail single-ended output ADC driver Low Input Offset: 30μV Input Bias Current: 0.2nA Excellent CMRR and PSRR: 120dB Wide Operating Voltage Range: ±4V to ±18V Closed Loop -3dB BW 0.3MHz (A V = 1k) to 5.5MHz (A V = 0.1) Operating Temperature Range: -55°C to +125°C Electrical screening to DLA 5962-15246 Acceptance of 75krad(Si)(LDR) wafers Radiation tolerance low dose rate (0.01rad(Si)/s): 75krad(Si)SEB LET TH(V S = ±18V): 60 MeV•cm 2/mg