MIL-PRF-38534 AND 38535 CERTIFIED FACILITY RAD HARD DUAL PRECISION OP-AMP 198RHL FEATURES: Manufactured using Space Qualified RH1498 Die MIL-PRF-38534 Class K Processing & Screening Total Dose Tested to 100 Krads(Si) (Method 1019.7 Condition A) Rail - to - Rail Input and Output 800µV Max Vos from V+ to VGain - Bandwidth Prduct: 10MHz Slew Rate: 6V/uS Typical Low Supply Current per Amplifier: 1.7mA Stable for Capacitive Loads Up to 10,000pF Large Output Drive Current: 30mA Wide Supply Range: 4.5V to ±15V Contact MSK for MIL-PRF-38534 Qualification and Radiation Status DESCRIPTION: The MSK198RHL is a radiation hardened dual operational amplifier for use in space and severe military applications. This device offers rail-to-rail input and output, 10MHz gain-bandwidth product and 6V/uS slew rate. With a wide supply range of 4.5V to ±15V and drive current to 30mA, these op amps remain stable while driving capacitve loads up to 10,000pF. The MSK198RHL is an ideal solution when multiple robust precision amplifiers are required and board space is at a premium. The hermetically sealed MSK198RHL is offered in a leadless ceramic chip carrier package for surface mount applications. EQUIVALENT SCHEMATIC PIN-OUT INFORMATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 OUT A NC -IN A NC +IN A NC VCASE/LID +IN B NC -IN B NC OUT B NC V+ NC CASE; LID = PIN 8 TYPICAL APPLICATIONS Battery Powered Precision Instrumentation Driving A - to - D Converters Rail - to - Rail Buffer Amplifiers Low Voltage Signal Processing Active Filters 1 8548-33 Rev. A 1/15 ABSOLUTE MAXIMUM RATINGS Total Supply Voltage (V+ to V-) Input Current Output Short - Circuit Duration 10 36V ±10mA Indefinite TST TLD TJ TC Storage Temperature Range Lead Temperature Range (10 Seconds) Junction Temperature Case Operating Temperature Range MSK198K/H RHL MSK198RHL ESD Rating -65°C to +150°C 300°C 150°C -55°C to+125°C -40°C to +85°C 2 ELECTRICAL SPECIFICATIONS 2 8548-33 Rev. A 1/15 ELECTRICAL SPECIFICATIONS CONT'D NOTES: 1 2 3 4 5 6 7 8 9 10 11 Unless otherwise specified; VS=±15V, VCM=VOUT=0V Matching parameters are the difference between amplifiers A and B. Input Offset Voltage Match and Input Bias Current Match are not specified for post radiation. Output Voltage swings are measured between the output and power supply rails. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade devices shall be tested to subgroup 1 and 4 unless otherwise specified. Military grade devices shall be 100% tested to subgroups 1,2,3 and 4. Subgroups 5 and 6 testing available upon request. Subgroup 1, 4 TA=TC=+25°C Subgroup 2, 5 TA=TC=+125°C Subgroup 3, 6 TA=TC=-55°C Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle. Pre and Post irradiation limits at 25°C, to 100K TID, are identical unless otherwise specified. 3 8548-33 Rev. A 1/15 APPLICATION NOTES SINGLE TO DIFFERENTIAL ADC DRIVER 4th ORDER BUTTERWORTH FILTER The circuit shown in Figure 1 utilizes the MSK198RHL to buffer and convert a single analog signal into an ADC with differential inputs. Some ADC's require an op amp to provide the appropriate gain and offset to match the signal to the input range of the ADC. An ADC may generate transient currents at their input due to the internal conversion circuit, and these currents need to be isolated from the signal source. The circuit in Figure 1 will provide a low impedance drive and absorb these currents. The first op amp offsets the input signal 1.25V while operating in unity gain. The output of the first op amp goes into the IN+ of the ADC and the inverting input of the second op amp. The second op amp inverts the signal around the 1.25VDC level applied to its non-inverting input and the output is connected to the IN- of the ADC. Optional filtering can be added to reduce high frequency noise from the ADC inputs if required. The wide bandwidth of the MSK198RHL is ideal for designing multi-order filter circuits. The circuit in Figure 3 shows a design that cascades two 2nd order filters as a 100KHz 4th order low pass filter. The design operates from a single supply. The filter offers a good compromise for low parts count and performance with minimal overshoot and ringing characteristics that a Butterworth filter offers. FIGURE 3 TOTAL DOSE RADIATION TEST PERFORMANCE Radiation performance curves for TID testing will be generated for all radiation testing performed by MS Kennedy. These curves show performance trends throughout the TID test process and will be located in the MSK198RHL radiation test report. The complete radiation test report will be available in the RAD HARD PRODUCTS section on the MSK website. ADDITIONAL APPLICATION INFORMATION For additional applications information, please reference Linear Technology Corporation's® LT1498/1499 and RH1498 data sheets. FIGURE 1 INSTRUMENTATION AMPLIFIER A simple low cost, low power consumption instrumentation amplifier can be designed with the MSK198RHL. Figure 2 shows a design that offers sensitivity trim for offset voltage, CMRR and gain. The circuit is configured for a differential input gain of 100. FIGURE 2 4 8548-33 Rev. A 1/15 TYPICAL PERFORMANCE CURVES 5 8548-33 Rev. A 1/15 MECHANICAL SPECIFICATIONS ESD TRIANGLE INDICATES PIN 1 WEIGHT=TBD ALL DIMENSIONS ARE SPECIFIED IN INCHES ORDERING INFORMATION MSK198 K RH L PACKAGE STYLE L=LCCC PACKAGE RADIATION HARDENED SCREENING BLANK= INDUSTRIAL H=MIL-PRF-38534 CLASS H; K=MIL-PRF-38534 CLASS K GENERAL PART NUMBER The above example is a Class K Dual Operational Amplifier in an LCCC package. 6 8548-33 Rev. A 1/15 REVISION HISTORY MSK www.anaren.com/msk The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make changes to its products or specifications without notice, however, and assumes no liability for the use of its products. Please visit our website for the most recent revision of this datasheet. Contact MSK for MIL-PRF-38534 qualification and radiation status. 7 8548-33 Rev. A 1/15