PA07A

PA07 • PA07A FET Input Operational Amplifier RoHS COMPLIANT FEATURES • • • • • Low Bias Current — FET Input Protected Output Stage — Thermal Shutoff Excellent Linearity — Class A/B Output Wide Supply Range — ±12V to ±50V High Output Current — ±5A Peak APPLICATIONS • • • • • • Motor, Valve, and Actuator Control Magnetic Deflection Circuits up to 4A Power Transducers up to 100 kHz Temperature Control up to 180W Programmable Power Supplies up to 90V Audio Amplifiers up to 60W RMS DESCRIPTION The PA07 is a high voltage, high output current operational amplifier designed to drive resistive, inductive and capacitive loads. For optimum linearity, especially at low levels, the output stage is biased for class A/B operation using a thermistor compensated base-emitter voltage multiplier circuit. A thermal shutoff circuit protects against overheating and minimizes heatsink requirements for abnormal operating conditions. The safe operating area (SOA) can be observed for all operating conditions by selection of user programmable current limiting resistors. Both amplifiers are internally compensated for all gain settings. For continuous operation under load, a heatsink of proper rating is recommended. This hybrid circuit utilizes thick film (cermet) resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is hermetically sealed and electrically isolated. The use of compressible washers and/or improper mounting torque will void the product warranty. Please see Application Note 1, “General Operating Considerations.” www.apexanalog.com © Apex Microtechnology Inc. All rights reserved Aug 2015 PA07U Rev U PA07 • PA07A TYPICAL CONNECTION Figure 1: Typical Connection Note: Input offset voltage trim optional. RT = 10 kΩ MAX 2 PA07U Rev U PA07 • PA07A PINOUT AND DESCRIPTION TABLE Figure 2: External Connections Pin Number Name Description 1 OUT The output. Connect this pin to load and to the feedback resistors. 2 +CL Connect to the current limit resistor. Output current flows into/out of these pins through RCL. The output pin and the load are connected to the other side of RCL+. 3 +Vs The positive supply rail. 4 +IN The non-inverting input. 5 -IN The inverting input. 6 -Vs The negative supply rail. 7 BAL Balance Control pin. Adjusts voltage offset. See applicable section. 8 -CL Connect to the current limit resistor. Output current flows into/out of these pins through RCL. The output pin and the load are connected to the other side of RCL-. PA07U Rev U 3 PA07 • PA07A SPECIFICATIONS The power supply voltage for all specifications is the TYP rating unless otherwise noted as a test condition. ABSOLUTE MAXIMUM RATINGS Parameter Symbol Max Units +Vs to -Vs 100 V Output Current, within SOA IO 5 A Power Dissipation, internal 1 PD 67 W VIN (Diff) ±50 V Vcm ±VS V 350 °C 200 °C -65 +150 °C -55 +125 °C Supply Voltage, total Input Voltage, differential Input Voltage, common mode Min Temperature, pin solder, 10s max. Temperature, junction 1 TJ Temperature Range, storage TC Operating Temperature Range, case 1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. CAUTION The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or subject to temperatures in excess of 850°C to avoid generating toxic fumes. INPUT Parameter Test Conditions PA07 Min PA07A Typ Max Min Typ Max Units Offset Voltage, initial TC = 25°C 0.5 ±2 ±0.25 ±0.5 mV Offset Voltage vs. Temperature Full temp range 10 30 5 10 µV/°C Offset Voltage vs. Supply TC = 25°C 8 * µV/V Offset Voltage vs. Power Full temp range 20 10 µV/W TC = 25°C 5 Bias Current vs. Supply TC = 25°C 0.01 Offset Current, initial 1 TC = 25°C 2.5 Input Impedance, DC TC = 25°C 1011 * Ω Input Capacitance TC = 25°C 4 * pF Common Mode Voltage Range 2 Full temp range Common Mode Rejection, DC Full temp range, VCM = ±20V Bias Current, initial 1 ±VS–10 50 3 10 * 50 1.5 pA/V 10 * 120 pA pA V * dB 1. Doubles for every 10°C of temperature increase. 2. +VS and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS. 4 PA07U Rev U PA07 • PA07A GAIN Parameter Test Conditions PA07 Min Typ 89 95 PA07A Max Max Units Min Typ * * dB Open Loop @ 15 Hz TC = 25°C, RL = 15 Ω Gain Bandwidth Product @ 1 MHz TC = 25°C, RL = 15 Ω 1.3 * MHz Power Bandwidth TC = 25°C, RL = 15 Ω 18 * kHz Phase Margin Full temp range, RL = 15 Ω 70 * ° PA07 PA07A OUTPUT Parameter Test Conditions Min Typ Max Min Typ Max Units Voltage Swing 1 Full temp range, IO = 5A ±VS–5 * V Voltage Swing 1 Full temp range, IO = 2A ±VS–5 * V Voltage Swing 1 Full temp range, IO = 90mA ±VS–5 * V Current, peak TC = 25°C 5 * A Settling Time to 0.1% TC = 25°C, 2V step Slew Rate TC = 25°C Capacitive Load, unity gain Full temp range, 1 * Capacitive Load, gain>4 Full temp range, SOA * 1.5 * µs 5 * V/µs nF 1. +VS and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS. POWER SUPPLY PA07 PA07A Test Conditions Min Typ Max Min Typ Max Voltage Full temp range ±12 ±35 ±50 * * * V Current, quiescent TC = 25°C 18 30 * * mA Parameter PA07U Rev U Units 5 PA07 • PA07A THERMAL Parameter Test Conditions PA07 Min PA07A Typ Max Min Typ Max Units Resistance, AC, junction to case 1 F>60 Hz 1.9 2.1 * * °C/W Resistance, DC, junction to case F