MSK155 ANAREN | Alldatasheet

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Technical content

FEATURES:

  • Space Efficient Dual Power Amplifier
  • Low Cost
  • High Voltage Operation: Up to 80V
  • Low Quiescent Current: 40mA Typ. Total
  • High Output Current: 5A Min. Per Amp
  • High Speed: 10V/µS Typ.
  • Monolithic Technology
  • Replaces obsolete MSK154 up to 80V DESCRIPTION: The MSK155 is a high power dual monolithic operational amplifier ideally suited for high power amplification and magnetic deflection applications. With a total supply voltage rating of 80 volts and 5A of available output current per amplifier, the MSK155 is also an excellent low cost choice for motor drive circuits. With both amplifiers in the same package, thermally induced output offset voltages are eliminated. Power dissipation is kept to a minimum with a total quiescent current rating of only 40mA. The MSK155 is packaged in a hermetically sealed 14 pin power dip with heat sink bolt down tabs.

14 Non Inverting Input 1

13 Inverting Input 1

12 Current Sense1

10 Output Drive 2A

9 Output Drive 2B

MIL-PRF-38534 AND 38535 CERTIFIED FACILITY 155 EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS PIN-OUT INFORMATION 1 8548-126 Rev. F 9/17 1 -Vcc1

2 Output Drive 1B

3 Output Drive 1A

5 Current Sense 2

6 Inverting Input 2

7 Non Inverting Input 2

  • PA Audio
  • Magnetic Deflection
  • Motor Drive
  • Noise Cancellation
  • High Power Bridge Amplifier

2 8548-126 Rev. F 9/17 ABSOLUTE MAXIMUM RATINGS ELECTRICAL SPECIFICATIONS RTH Thermal Resistance (DC) Parameter Test Conditions 1 Group A Subgroup STATIC Supply Voltage Range 4 - ±10 ±35 ±40 ±10 ±35 ±40 V Quiescent Current Each Amp VIN = 0V 1 - ±20 ±30 - ±20 ±35 mA INPUT Offset Voltage VIN = 0V Offset Voltage Drift 4 VIN = 0V 2, 3 - ±10 ±50 - ±10 - µV/°C Offset Voltage vs ±VCC 2 VIN = 0V - - ±5 - - ±5 - µV/V Input Bias Current 4 VCM = 0V 1 - ±20 ±100 - ±20 ±200 pA Input Impedance 2 (DC) - - 10 - - 10 - Ω Imput Capacitance 2 - - 5 - - 5 - pF Common Mode Rejection 4 VCM = ±22VDC 4 95 110 - 90 110 - dB Noise 2 F = 10Hz to 1KHz - - 10 - - 10 - µVRMS OUTPUT Output Voltage Swing 2 RL = 10K - - ±33.5 - - ±33.5 - V output Voltage Swing IOUT = 5A Pk 4 ±29 ±30 - ±29 ±30 - V Power Bnadwidth 4 RL = 10Ω VOUT = 20VRMS 4 45 55 - 40 55 - KHz Settling Time to 0.1% 3 2 2V Step - - 2 - - 2 - µS Capacitive Load 4 AV = +10V/V - 10 - - 10 - - nF TRANSFER CHARACTERISTICS Slew Rate 4 VOUT = ±10V RL = 10Ω 4 6 10 - 6 10 - V/µS Open Loop Voltage Gain 4 F = 10Hz RL = 10KΩ 4 95 100 - 90 100 - dB NOTES: 1 Unless otherwise noted ±VCC = ±35VDC, RCL = 0Ω and specifications apply to each amplifier. 2 Typical parameters are for reference only. 3 AV = -1V/V measured in false summing junction circuit. 4 Guaranteed by design but not tested. Typical parameters are for reference only. 5 Industrial grade devices shall be tested to subgroups 1 and 4 unless otherwise requested. 6 Military grade devices ('H' suffix) shall be 100% tested to subgroups 1, 2, 3 and 4. 7 Subgroup 5 and 6 testing available upon request.

8 Subgroup 1, 4 TC = +25°C

Subgroup 2, 5 TC = +125°C Subgroup 3, 6 TA = -55°C 9 Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle. 10 Internal solder reflow temperature is 180°C, do not exceed.

3 8548-126 Rev. F 9/17 SAFE OPERATING AREA (SOA) The output stage of this power operational amplifier has three distinct limitations: 1. The current handling capability of the die metallization. 2. The junction temperature of the output device's. 3. Secondary breakdown. All applications should be checked against the SOA curves. NOTE: The output stage is protected against transient flyback. However, for protection against sustained, high energy flyback, external fast-recovery reverse biased diodes should be connected from the output to ground. TYPICAL CONNECTION DIAGRAM APPLICATION NOTES CURRENT LIMIT (SEE TYPICAL CONNECTION DIAGRAM) A value of current limit resistance can be calculated as follows: RCL=(0.809V/ICL) - 0.057Ω Where: RCL is the current limit resistor value. ICL is the current limit desired. 0.057Ω is the drop in the current limit path across internal impedances other than the actual current limit resistor. 0.809Ω volts is the voltage drop that must be developed across the current limit connections to activate the current limit circuit at 25°C. It is recommended the user limit output current to a value as close to the required output current as possible, without clipping output voltage swing. Current limit will vary with case temperature. Refer to the typical performance curves to predict current limit drift. If current limit is not required replace the resistor with a short. STABILITY It is recommended that the parallel sum of the input and feedback resistor be 1000 ohms or less to minimize phase shift caused by the R-C network formed by the input resistor, feedback resistor and input capacitance. An effective method of checking amplifier stability is to apply the worst case capacitive load to the output of the amplifier and drive a small signal square wave across it. If overshoot is less than 25%, the system will typically be stable. INPUT PROTECTION Input protection circuitry within the MSK155 will clip differential input voltages greater than V CC. The inputs are also protected against common mode voltages up to the supply rails as well as static discharge. There are current limiting resistors in series with each input. These resistors may become damaged in the event the input overload is capable of driving currents above 1mA. If severe overload conditions are expected, external input current limiting resistors are recommended. POWER SUPPLY DECOUPLING A 0.1 microfarad ceramic disc and low ESR capacitor with a value of 10 microfarads per amp of output current should be placed in parallel from each power supply pin to ground. These capacitors must be rated for the full power supply voltage. Since the MSK155 is commonly used in circuits where the loop gain is greater than

10 V/V, high frequency noise that enters the op-amp through the

power supply lines will be amplified and could cause the amplifier to break into oscillation. In addition, without supply bypassing, the inductance of the power supply lines interacts with capacitive loads to form an oscillatory LC tank circuit. The power supply decoupling capacitors will minimize this effect and keep the circuit stable.

4 8548-126 Rev. F 9/17 TYPICAL PERFORMANCE CURVES

ESD TRIANGLE INDICATES PIN 1 WEIGHT=7.2 GRAMS TYPICAL ALL DIMENSIONS ARE SPECIFIED IN INCHES 5 8548-126 Rev. F 9/17 MECHANICAL SPECIFICATIONS

ORDERING INFORMATION

MSK155H MIL-PRF-38534, CLASS H

6 8548-126 Rev. F 9/17 The information contained herein is believed to be accurate at the time of printing. Anaren, MSK products 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. ANAREN, MSK Products www.anaren.com/msk

REVISION HISTORY

REV STATUS DATE DESCRIPTION E Released 06/14 Add new note for solder reflow, clarify mechanical outline and assign new form number. F Released 09/17 Clarify GBD specification and update format