OPA548 datasheet(28/36 Pages) TI

Part #	OPA548

Description	High-Voltage (100V), High-Current (50mA) OPERATIONAL AMPLIFIERS, G = 1 Stable

PDF	36 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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=V - V

OUT

25kW

OPA454

HIGH-COMPLIANCE VOLTAGE CURRENT

5ms/div

-2

-2V

OUT

LED

OPA454

Load

I =(V -

V )/R

OPA454

25kW

OPA454

SBOS391 – DECEMBER 2007

A red light emitting diode (LED) was used to generate

Figure 84.

Gain of the avalanche photodiode (APD) is adjusted

by changing the voltage across the APD. Gain starts

to increase when reverse voltage is increased beyond

130V for this API diode. Figure 85 shows this

structure.

Figure 82. High-Voltage Difference Amplifier

SOURCES

This section describes four different applications

utilizing high compliance voltage current sources with

differential inputs. Figure 69 and Figure 83 illustrate

the different applications.

Figure 84. Avalanche Photodiode Circuit

Figure 83. Differential Input Voltage-to-Current

Converter for Low IOUT

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OPA548 Datasheet(PDF) 28 Page - Texas Instruments