Texas Instruments OPA462EVM Operation & User’s Manual

Copyright © 2019, Texas Instruments Incorporated OPA462EVM User's Guide SBOU175–October 2019 OPA462EVM This user's guide describes the characteristics, operation, and use of the evaluation module (EVM) for the OPA462. The EVM is designed to evaluate the performance of the devices in both single and du ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM Contents 1 Overview ..................................................................................................................... 3 1.1 OPA462 ................................................................................... ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM 1 Overview 1.1 OPA462 The OPA462 is a precision power amplifier capable of operating over a very wide supply range of ±6 V to ±90 V, with an input common-mode range that extends to within a few volts from each rail. This am ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM 2 Getting Started This section explains the connectors and jumpers, and details the basic EVM functionality. 2.1 Power Supplies The OPA462EVM can be configured from ±6 V to ±90 V for dual supply operation, or from 12 ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM 2.6 Status Flag The OPA462 incorporates a status flag pin to indicate overcurrent or overtemperature conditions. This pin is an open-drain, active-low output that allows the pin to be easily interfaced with standard lo ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM 3 Application Circuits The OPA462EVM may be configured in most standard op amp circuits. See the OPA462 data sheet for typical applications. 3.1 Improved Howland Current Pump The OPA462EVM can be configured as an ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM For the improved Howland current pump application, the output voltage (Vout) that is attainable at the load is further constrained by the voltage drop developed across Rhcp. The 20-mA load current flows through th ...

Copyright © 2019, Texas Instruments Incorporated OPA462EVM The same circuit shown in Figure 1 is applied, except the 2.5-VDC VP voltage source in Figure 1 is replaced by an 100-Hz ac source having a peak voltage of 2.5 V. The peak output current depends on the peak voltag ...

TP10 E/D EXT GND 0.1uF C7 Enable/Disable Configuration 1 2 3 J4 R12 Rref TP15 VREF Ext 10k R4 GND GND 1 2 3 J12 VREF Select GND SF 1 2 3 J3 V- SF Pull-Up SF GND R11 Rf+ 1 2 3 J7 -In Select TP12 TP14 1 2 3 J10 +In Select GND R10 Rsn 1 ...

TP10 E/D EXT Enable/Disable Configuration 1 2 3 J4 10k R4 GND SF 1 2 3 J3 V- SF Pull-Up SF 1 2 3 J7 -In Select TP12 TP14 1 2 3 J10 +In Select GND 1 2 3 J5 GND 0.1uF C15 GND 0.1uF C11 GND 1 2 J11 Vout GND GND GND GND 0 R8 R6 Riso R7 Rhcp TP5 TP6 ...