ISL71830SEH ISL71830SEH DATASHEET ISL70617SEH FN8697 Rev 5.00 36V Radiation Hardened Precision Instrumentation Amp with Rail-to-Rail Output Jan 28, 2021 Differential ADC Driver The ISL70617SEH is a high performance, differential input, Features differential output instrumentation amplifier designed for Rail-to-rail differential output ADC driver precision analog-to-digital applications. It can operate over a supply range of 8V (4V) to 36V (18V) and features a Low input offset . 30V differential input voltage range up to 30V. The output stage Input bias current 0.2nA has rail-to-rail output drive capability optimized for differential Excellent CMRR and PSRR . 120dB ADC driver applications. The output stage is powered by separate supplies. This feature enables the output to be driven Wide operating voltage range . 4V to 18V by the same low voltage supplies powering the ADC, thereby Closed loop -3dB BW 0.3MHz (A = 1k) to 5.5MHz (A = 0.1) V V providing protection from high voltage signals and the low voltage digital circuits. Its versatility makes it suitable for a Operating temperature range -55C to +125C variety of general purpose applications. Additional features not Acceptance tested to 75krad(Si) (LDR) wafer-by-wafer found in other instrumentation amplifiers enable high levels of Radiation acceptance testing DC precision and excellent AC performance. - Low dose rate (0.01rad(Si)/s) 75krad(Si) The gain of the ISL70617SEH can be programmed from 0.1 to SEE hardness (see SEE report for details) 10,000 via two external resistors, R and R . The gain IN FB 2 - SEB LET (V = 18V) . 60MeVcm /mg TH S accuracy is determined by the matching of R and R . The IN FB gain resistors have Kelvin sensing, which removes gain error Applications due to PCB trace resistance. The input and output stages have individual power supply pins, which enable input signals riding ADC driver on a high common-mode voltage to be level shifted to a low Precision test and measurement voltage device, such as an A/D converter. The rail-to-rail output High voltage process control stage can be powered from the same supplies as the ADC, which preserves the ADC maximum input dynamic range and Signal conditioning for remote powered sensors eliminates ADC input overdrive. Satellite communication The ISL70617SEH is offered in a 24 Ld ceramic flatpack package with an operating temperature range of -55C to Related Literature +125C. For a full list of related documents, visit our website - ISL70617SEH product page SIGNAL WITH +18V HIGH VCM IN+ GAIN = 10 VCC V CC VCO +RIN 5V Ch 1 R IN +VFB -RIN +VOUT ISL70617SEH -VOUT +RFB -VFB Ch 16 V R FB CMO -RFB VEO VEE V IN- GND CC -18V HIGH V IN IN RHADC 5V +18V SIGNAL V REF IN+ GAIN = 0.1 GND VCC V +RIN CC VCO R IN +VFB Ch 1 -RIN +VOUT ISL70617SEH -VOUT +RFB -VFB R V Ch 16 FB CMO -RFB VEO ISL71090SEH25 VEE IN- GND -18V ISL71090SEH25 FIGURE 1. COMPLETE SPACE GRADE ANALOG SIGNAL CHAIN FN8697 Rev 5.00 Page 1 of 29 Jan 28, 2021ISL70617SEH Table of Contents Ordering Information 3 Simplified Block Diagram . 4 Pin Configuration 4 Pin Descriptions . 4 Absolute Maximum Ratings . 6 Thermal Information . 6 Recommended Operating Conditions 6 Electrical Specifications . 6 Typical Post Radiation Performance Curves 10 Typical Performance Curves . 13 Applications Information 18 General Description 18 Functional Description 18 Amplifier . 19 Input G M Feedback G Amplifier . 19 M Error Amplifier A5, Output Amplifier A6 . 19 Designing with the ISL70617SEH . 19 Setting the Feedback Gain Resistor (R ) . 19 FB Setting the Input Gain Resistor (R ) 20 IN Input Stage Overdrive Considerations . 20 Setting the Power Supply Voltages . 20 Powering the Input and Feedback Stages (V , V ) . 20 CC EE Powering the Rail-to-Rail Output Stage (V ,V ) . 20 CO EO Rail-to-Rail Differential ADC Driver . 21 Power Supply Voltages by Application 21 AC Performance Considerations . 21 AC Compensation Techniques . 22 Input Common-Mode Rejection Considerations 22 Layout Guidelines 22 Power Supply Decoupling . 22 Estimating Amplifier DC and Noise Performance . 23 Calculating DC Offset Voltage . 23 Calculating Noise Voltage . 23 Driving an ADC . 24 Input and Feedback Amplifiers 24 Rail-to-rail Output Stage 24 DC Offsets and Noise 24 Amplifier Usage Examples 25 Package Characteristics 26 Weight of Packaged Device . 26 Lid Characteristics . 26 Die Characteristics . 26 Die Dimensions . 26 Interface Materials 26 Assembly Related Information 26 Additional Information . 26 Metalization Mask Layout . 26 Revision History 28 Package Outline Drawing 29 Ceramic Metal Seal Flatpack Packages (Flatpack) 29 FN8697 Rev 5.00 Page 2 of 29 Jan 28, 2021