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| ISO-9001 CERTIFIED BY DSCC HIGH SPEED OPERATIONAL AMPLIFIER M.S.KENNEDY CORP. 4707 Dey Road Liverpool, N.Y. 13088 0024 (315) 701-6751 MIL-PRF-38534 QUALIFIED FEATURES: Pin Similar Replacement for LH0024 High Slew Rate: 400V/S Typ. Fast Settling Time Excellent DC Performance Excellent Video Specifications Internally Compensated for Unity Gain Operation DESCRIPTION: The MSK 0024 is a wide bandwidth, high slew rate operational amplifier ideally suited for use as a buffer to A to D and D to A converters and high speed comparators. The device is internally compensated and will remain stable when driving a capacitive load. The MSK 0024 is also a pin similar replacement for the popular LH0024. The MSK 0024 is internally compensated and can replace the LH0024 in most applications without any changes to existing circuitry. The device is packaged in a hermetically sealed 8 pin metal can. EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS TYPICAL APPLICATIONS High Speed DAC Buffer High Speed Flash ADC Buffer High Speed Cable Driver Imaging Equipment PIN-OUT INFORMATION 1 2 3 4 NC -Input +Input -VCC 8 7 6 5 NC +VCC Output NC 1 Rev. A 3/03 ABSOLUTE MAXIMUM RATINGS VCC PD VIN VIND TC Supply Voltage 18V Internal Power Dissipation 600mW Input Voltage VCC 15V Differential Input Voltage 6V Case Operating Temperature Range MSK0024H/E -55C to +125C MSK0024 -40C to +85C ELECTRICAL SPECIFICATIONS Parameter STATIC Supply Voltage Range 2 Quiescent Current 1 2,3 INPUT Input Offset Voltage AV=5 RS=50 1 2,3 Input Offset Voltage Drift 2 Input Bias Current 2 Test Conditions Group A Subgroup MSK0024H/E Min. Typ. Max. Min. MSK0024 Typ. Max. 5 - 15 6 6 18 15 15 5 - 15 6 - 18 18 - 75 75 - 0.5 1.0 15 4 5 1 1 95 95 300 1.5 3.0 5.0 20 30 5 5 - 75 75 - 0.5 15 4 1 95 95 300 1.5 4.0 30 10 - VCM=0V 1 2,3 Input Offset Current 2 VCM=0V 1 2,3 Common Mode Rejection Ratio 2 Power Supply Rejection Ratio 2 Input Impedence 2 Input Capacitance 2 OUTPUT Output Voltage Swing Power Bandwidth 2 VCM=10VDC -VCC=-15V +VCC=+5V to +15V 1 1 +VCC=+15V -VCC=-5V to -15V - RL=2K VOUT=10VPK RL=2K 4 - 12.0 12.5 4.5 - 12.0 12.5 4.5 - TRANSFER CHARACTERISTICS Slew Rate Open Loop Voltage Gain 2 Thermal Resistance VOUT=10VPK RL=2K VOUT=10VPK f=10HZ Junction to Case @ 125C 4 4 220 3 400 8 50 58 200 3 400 8 50 65 V/S V/mV C/W NOTES: 1 2 3 4 5 6 Unless otherwise specified, VCC=15VDC and VIN=0V. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise requested. Military grade devices ("H" suffix) shall be 100% tested to subgroups 1,2,3 and 4. Subgroup 5 and 6 testing available upon request. Subgroup 1,4 TC=+25C Subgroup 2,5 TC=+125C Subgroup 3,6 TA=-55C 2 Rev. A 3/03 TJ TST TLD Storage Temperature Range -65C to +150C Lead Temperature Range 300C (10 Seconds) Junction Temperature 175C Units V mA mA mV mV V/C A A A A dB dB K pF V MHz APPLICATION NOTES POWER SUPPLY BYPASSING Both the negative and positive power supplies must be effectively decoupled with a high and low frequency bypass circuit to avoid power supply induced oscillation. An effective decoupling scheme consists of a 0.1 microfarad ceramic capacitor in parallel with a 4.7 microfarad tantalum capacitor from each power supply pin to ground. For a worst case analysis we treat the +8Vp sine wave as an 8 VDC output voltage. 1.) Find driver power dissipation PD=(VCC-VOUT) (VOUT/RL) =(16V-8V) (8V/200) =320mW 2.) For conservative design, set TJ =+125C. 3.) For this example, worst case TA =+100C. 4.) RJC = 58C/W from MSK 032B Data Sheet. 5.) RCS=0.15C/W for most thermal greases. 6.) Rearrange governing equation to solve for RSA: RSA= ((TJ - TA) / PD) - (RJC) - (RCS) = (125C - 100C)/0.32W - 58C/W - 0.15C/W =78.1 - 58.15 =19.9C/W The heat sink in this example must have a thermal resistance of no more than 19.9C/W to maintain a junction temperature of less than +125C. HEAT SINKING To determine if a heat sink is necessary for your application and if so, what type, refer to the thermal model and governing equation below. Thermal Model: INPUT CONSIDERATIONS An input resistor (RIN below) is required in circuits where the input to the MSK0024 will be subjected to transient or continuous voltages exceeding the 6V maximum differential limit. This resistor will limit the current that can be forced into the bases of the input transistors. Governing Equation: TJ = PD X (RJC + RCS + RSA) + TA Where TJ PD RJC RCS RSA TC TA TS FEEDBACK RESISTORS Feedback resistors should be of low enough value (<5K recommended) to ensure that the time constant formed with the capacitance at the summing junction will not limit amplifier performance. If a larger resistor must be used, a small (< 10pF) feedback capacitor may be used in parallel with the feedback resistor to compensate and optimize the performance of the MSK0024. = = = = = = = = Junction Temperature Total Power Dissipation Junction to Case Thermal Resistance Case to Heat Sink Thermal Resistance Heat Sink to Ambient Thermal Resistance Case Temperature Ambient Temperature Sink Temperature TYPICAL APPLICATION CIRCUIT Example: The example demonstrates a worst case analysis for the op-amp output stage. This occurs when the output voltage is 1/2 the power supply voltage. Under this condition, maximum power transfer occurs and the output is under maximum stress. Conditions: VCC=16VDC VOUT=8Vp Sine Wave, Freq.=1KHz RL=200 3 Rev. A 3/03 TYPICAL PERFORMANCE CURVES 4 Rev. A 3/03 MECHANICAL SPECIFICATIONS ALL DIMENSIONS ARE 0.010 INCHES UNLESS OTHERWISE LABELED. ORDERING INFORMATION MSK0024 H SCREENING BLANK= INDUSTRIAL; E=EXTENDED RELIABILITY H= MIL-PRF-38534 CLASS H GENERAL PART NUMBER The above example is a Military grade hybrid. M.S. Kennedy Corp. 4707 Dey Road, Liverpool, New York 13088 Phone (315) 701-6751 FAX (315) 701-6752 www.mskennedy.com 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. 5 Rev. A 3/03 |
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