OPA361AIDCKR中文资料德州仪器数据手册PDF规格书

FEATURES

EXCELLENT VIDEO PERFORMANCE

INTERNAL GAIN: 5.2V/V

SUPPORTS TV-DETECTION

COMPATIBLE WITH OMAP242x and

DAVINCI
PROCESSORS

2-POLE RECONSTRUCTION FILTER

INPUT RANGE INCLUDES GROUND

− DC-Coupled Input

INTEGRATED LEVEL SHIFTER

− DC-Coupled Output(1)

− No Output Capacitors Needed

RAIL-TO-RAIL OUTPUT

LOW QUIESCENT CURRENT: 5.3mA

SHUTDOWN CURRENT: 1.5
A

SINGLE-SUPPLY: 2.5V to 3.3V

SC70-6 PACKAGE: 2.0mm x 2.1mm

RoHS COMPLIANT

APPLICATIONS

CAMERA PHONES

DESCRIPTION

The OPA361 high-speed amplifier is optimized for 3V

portable video applications. It is specifically designed to be

compatible with the video encoders embedded in Texas

Instruments’ OMAP2420 and DaVinci processors or other

application processors with 0.5VPP video output. The input

common-mode range includes GND, which allows a

video-DAC (digital-to-analog converter) to be DC-coupled

to the OPA361. The TV-detection feature simplifies the

end-user interface significantly by facilitating the

automatic start/stop of video transmission.

The output swings within 5mV of GND and 250mV to V+

with a standard back-terminated video load (150Ω). An

internal level shift circuit prevents the output from

saturating with 0V input, thus preventing sync-pulse

clipping in common video circuits. Therefore, the OPA361

is ideally suited for DC-coupling to the video load.

The OPA361 has been optimized for space-sensitive

applications by integrating internal gain setting resistors

G = 5.2V/V) and a 2-pole video-DAC reconstruction filter.

In shutdown mode, the quiescent current is reduced to

< 1.5μA, dramatically reducing power consumption and

prolonging battery life.

The OPA361 is available in the tiny 2mm x 2.1mm SC70-6

package.