ACPL-790B, ACPL-790A, ACPL-7900 Precision Isolation Amplifiers Data Sheet Description Features The ACPL-790B/790A/7900 isolation amplifiers were designed 0.5% High Gain Accuracy (ACPL-790B) for current and voltage sensing in electronic power converters 50 ppm/C Low Gain Drift in applications including motor drives and renewable energy 0.4 mV Input Offset Voltage systems. In a typical motor drive implementation, current flows 0.05% Excellent Linearity through an external resistor and the resulting analog voltage 62 dB SNR drop is sensed by the isolation amplifier. A differential output 200 kHz Wide Bandwidth voltage that is proportional to the current is created on the other side of the optical isolation barrier. 3 V to 5.5 V Wide Supply Range for Output Side -40 C to +105 C Operating Temperature Range For general applications, the ACPL-790A (1% gain tolerance) Advanced Sigma-Delta ( - ) A/D Converter Technology and the ACPL-7900 (3% gain tolerance) are recommended. For high precision applications, the ACPL-790B (0.5% gain Fully Differential Isolation Amplifier tolerance) can be used. The product operates from a single 5 V 15 kV/s Common-Mode Transient Immunity supply and provides excellent linearity and dynamic Compact, Auto-Insertable DIP-8 Package performance of 62 dB SNR. With 200 kHz bandwidth, 1.6 s fast Safety and Regulatory Approvals: response time, the product captures transients in short circuit IEC/EN/DIN EN 60747-5-5: 891 Vpeak working and overload conditions. The high common-mode transient insulation voltage immunity (15 kV/s) of the ACPL-790B/790A/7900 provides the UL 1577: 5000 Vrms/1 min double protection rating precision and stability needed to accurately monitor motor current in high noise motor control environments, providing CSA: Component Acceptance Notice 5 for smoother control (less torque ripple) in various types of motor control applications. Applications Combined with superior optical coupling technology, the Current/Voltage Sensing in AC and Servo Motor Drives ACPL-790B/790A/7900 implements sigma-delta ( - ) Solar Inverters, Wind Turbine Inverters analog-to-digital converter, chopper stabilized amplifiers, and a fully differential circuit topology to provide unequaled Industrial Process Control isolation-mode noise rejection, low offset, high gain accuracy Data Acquisition Systems and stability. This performance is delivered in a compact, Switching Power Supply Signal Isolation auto-insertable DIP-8 package that meets worldwide General Purpose Analog Signal Isolation regulatory safety standards. Traditional Current Transducer Replacements CAUTION It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. Avago Technologies - 1 -ACPL-790B, ACPL-790A, ACPL-7900 Functional Diagram Data Sheet Functional Diagram I I DD1 DD2 V DD1 8 1 V DD2 V IN+ 2 + 7 V OUT+ + - V IN- 3 - 6 V OUT- GND1 4 5 GND2 SHIELD NOTE A 0.1 F bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8. Pin Description Table 1 Pin Description Pin No. Symbol Description 1 V Supply voltage for input side (4.5 V to 5.5 V), relative to GND1 DD1 2V Positive input ( 200 mV recommended) IN+ 3 V Negative input (normally connected to GND1) IN 4 GND1 Input side ground 5 GND2 Output side ground 6 V Negative output OUT 7 V Positive output OUT+ 8 V Supply voltage for output side (3 V to 5.5 V), relative to GND2 DD2 Ordering Information ACPL-790B/790A/7900 is UL recognized with 5000 Vrms/1 minute rating per UL 1577. Table 2 Ordering Information Option (RoHS Surface IEC/EN/DIN EN Part Number Package Gull Wing Tape & Reel Quantity Compliant) Mount 60747-5-5 ACPL-790B -000E 300 mil X 50 per tube ACPL-790A DIP-8 -300E X X X 50 per tube ACPL-7900 -500E X X X X 1000 per reel To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry. Example: ACPL-790B-500E to order product of Gull Wing Surface Mount package in Tape and Reel packaging with IEC/EN/DIN EN 60747-5-5 Safety Approval and RoHS compliance. Optional data sheets are available. Contact your Avago sales representative or authorized distributor for information. Avago Technologies - 2 -