Texas Instruments

Description

Question about low temperature characteristic of OPA561 . OPA561 evaluation circuit. Ta=- 40 with 47pF. Ta=-40 without 47pF. Oscillation 0.75MHz. TI OPA561 is used as a line driver and to filter the PWM signal. TI OPA353 is used to filter the incoming signal (active bandpass). A coupling circuit with difference between the DAC setpoint and the actual current. This signal drives the external linear power amplifier, which is an OPA561 . Figure 12. Laser Control OPA561 . GENERAL-PURPOSE LINEAR POWER. 15V, 17MHz, 50V/ s. BOOSTER. 1. Please be aware that an important notice concerning availability, Jun 15, 2006 2 on-chip PWM outputs are summed together by the analog circuit (optional). Signal filtered and amplified by. OPA561 line driver. 0. 0.5. 1.