DEM-OPA65x DEM-OPA265x EVALUATION FIXTURES ® FEATURES APPLICATIONS ● BOARDS FOR SINGLE AND DUAL OP AMPS ● EASY EVALUATION OF CFA AND VFA OP AMPS ● SOIC AND DIP VERSIONS ● EASY EVALUATION OF SINGLE AND DUAL OP AMPS ● SURFACE MOUNT COMPONENTS FOR OPTIMUM PERFORMANCE ● EVALUATE HIGH-FREQUENCY, TWO-LAYER PCB LAYOUT ● SMA INPUT AND OUTPUT JACKS FOR MAXIMUM FREQUENCY RESPONSE ● UNIVERSAL POWER SUPPLY CONNECTION DESCRIPTION The DEM-OPA65x AND DEM-OPA265x evaluation fixtures are pre-assembled printed circuit boards designed to provide an optimized environment when evaluating the wideband operational amplifiers of the OPA65x series. The DEM-OPA65x is used for the single op amps, where the DEM-OPA265x is designed for dual op amps. A variety of different op amps can be evaluated with the same board. For example the voltage-feedback op amp OPA650/OPA651 or the current-feedback op amp OPA658. Similarly for the duals, the OPA2650 or the OPA2658 will fit on the DEM-OPA265x demonstration board. Since the boards are universal, the actual operational amplifier is not included with the evaluation board. Boards are available for both package types, the DIP and the SOIC package. International Airport Industrial Park • Mailing Address: PO Box 11400 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • © 1995 Burr-Brown Corporation These demonstration boards have surface-mount resistors and ceramic bypass capacitors soldered on the board. A collection of gain setting resistors is included with the board. The feedback resistor is placed directly between the input and the output pins. This is necessary to achieve the maximum bandwidth. The power supply bypass capacitors consist of a tantalum and a ceramic chip capacitor pair on each of the power supplies. They are placed directly at the pins to maintain low harmonic distortion. For more detailed information on the operational amplifiers, refer to the individual datasheets. The demoboards have been designed to support a variety of different circuit configurations. Also included are resistors for termination and isolation of load capacitance. Slight degradation of the ac-performance is the tradeoff. However, the number of required components depends on the selected configuration. • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 LI-471A Printed in U.S.A. June, 1995 ORDERING INFORMATION PART NUMBER PACKAGE CIRCUIT CONFIGURATION DEM-OPA65xP DEM-OPA65xU DIP SOIC Single Op Amp Single Op Amp DEM-OPA265xP DEM-OPA265xU DIP SOIC Dual Op Amp Dual Op Amp R4 R3 J2 –In R2 C1 1µF R8 1 +5V 2 C3 0.1µF GND P1 2 R6 J1 +In R5 7 OPA65x 3 4 R7 R1 6 J1 Out C6 1 C2 0.1µF GND 2 –5V P2 C4 1µF FIGURE 1. Circuit Diagram of the DEM-OPA65x. (A) (B) (C) (D) FIGURE 2. DEM-OPA65xP, (A) Silkscreen/Bottom, (B) Silkscreen/Top, (C) Solder Side, (D) Component Side. ® DEM-OPA65X/OPA265X 2 FIGURE 3. DEM-OPA65xU, Component Side, Solder Side and Silkscreen. R12 J5 R13 –InB R11 C3 2.2µF R16 1 +5V 2 C1 0.1µF GND P1 6 R9 J4 5 +InB R8 R14 7 J6 OutB C6 R10 R3 J2 8 1/2 OPA265X R4 –InA R2 R15 2 1/2 OPA265X 3 4 R6 J3 +InA R5 R7 C2 0.1µF C4 2.2µF R1 1 J1 OutA C5 1 GND 2 –5V P2 FIGURE 4. Circuit Diagram DEM-OPA265x. ® 3 DEM-OPA65X/OPA265X (A) (B) (C) (D) FIGURE 5. DEM-OPA265xP: (A) Silkscreen/Bottom, (B) Silkscreen/Top, (C) Solder Side, (D) Component Side. FIGURE 6. DEM-OPA265xU, Component Side, Solder Side and Silkscreen. ® DEM-OPA65X/OPA265X 4