OPA361

Manufacturer Part NumberOPA361
ManufacturerTexas Instruments
OPA361 datasheet
 


Specifications of OPA361

Number Of Channels1Vs(min)(v)2.5
Vs(max)(v)3.6Filter -3db Freq(typ)(mhz)9
No. Filter Poles2Gain(db)14.3
Diff Gain(%)1.2Diff Phase(deg)1.6
Input CouplingDC+ShiftOutput CouplingDC or AC
Io(typ)(ma)80Device Control MethodGPIO
Iq Total(typ)(ma)5.3Iq Disabled(typ)(ua)1.5
Operating Temperature Range(c)-40 to 125Pin/package6SC70
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3V VIDEO AMPLIFIER
with Internal Gain and Filter in SC70
FEATURES
D
EXCELLENT VIDEO PERFORMANCE
D
INTERNAL GAIN: 5.2V/V
D
SUPPORTS TV-DETECTION
D
COMPATIBLE WITH OMAP242x and
DAVINCIE PROCESSORS
D
2-POLE RECONSTRUCTION FILTER
D
INPUT RANGE INCLUDES GROUND
− DC-Coupled Input
D
INTEGRATED LEVEL SHIFTER
(1)
− DC-Coupled Output
− No Output Capacitors Needed
D
RAIL-TO-RAIL OUTPUT
D
LOW QUIESCENT CURRENT: 5.3mA
D
SHUTDOWN CURRENT: 1.5mA
D
SINGLE-SUPPLY: 2.5V to 3.3V
D
SC70-6 PACKAGE: 2.0mm x 2.1mm
D
RoHS COMPLIANT
(1) Internal circuitry avoids output saturation, even with 0V sync tip
level at the input video signal.
APPLICATIONS
D
CAMERA PHONES
V+
OPA361
10mV
2−Pole
+In
Filter
500Ω
R
SET
4kΩ
G = 5.2V/V
Shutdown
(see note 1)
Enable
Control
GND
(1) Closed when enabled during normal operation; open when shut down.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
DAVINCI is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
SBOS334A − SEPTEMBER 2005 − REVISED JANUARY 2006
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 0.5V
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
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.
RELATED LOW VOLTAGE VIDEO AMPS
FEATURES
75Ω
2.7V to 3.3V, 70MHz, 6mA I Q , 5µA Sleep, SC70
Out
2.7V to 3.3V, Filter, SAG, G = 2, 5µA Sleep, SC70
2.7V to 5.5V, 200MHz, 300V/µs, 6µA Sleep, SOT23
2.7V to 5.5V, 100MHz, 150V/µs, 6µA Sleep, SOT23
Copyright  2005, Texas Instruments Incorporated
www.ti.com
OPA361
video output. The input
PP
by
facilitating
the
PRODUCT
OPA358
OPA360
OPA355
OPA357

OPA361 Summary of contents

  • Page 1

    ... 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. RELATED LOW VOLTAGE VIDEO AMPS FEATURES 75Ω ...

  • Page 2

    ... Continuous −40°C to +125°C −65°C to +150°C +160°C 5000V GND 400V R 2000V NOTE: The location of pin 1 on the OPA361 is determined by orienting the package marking as shown in the diagram above. www.ti.com PACKAGE MARKING AUY AUY SC70 + ...

  • Page 3

    ... +2.8V −0.05V 75Ω to GND +2.8V, Disabled +2. +2.8V, Enabled 1. OUT Specified Temperature Range V = +2.8V, Disabled S OPA361 OPA361 MIN TYP MAX UNITS − ±80 µ V/V GND 0.42 V GND 0.48 V GND 0.55 V Ω 450 510 550 Ω 3600 ...

  • Page 4

    ... OPA361 SBOS334A − SEPTEMBER 2005 − REVISED JANUARY 2006 TYPICAL CHARACTERISTICS +25°C and 150Ω, unless otherwise noted TEMPERATURE IN 535 530 525 520 515 510 505 500 495 −50 −25 0 +25 +50 +75 Temperature ( RATIO SET ...

  • Page 5

    ... OPA361 QUIESCENT CURRENT vs TEMPERATURE 0 +25 +50 +75 +100 +125 +150 Temperature (_C) OUTPUT LEAKAGE IN SHUTDOWN 1 1 (V) PULLUP AC RESPONSE AT VARIOUS TEMPERATURES +125_ C +85_ C +25_C − ...

  • Page 6

    ... OPA361 SBOS334A − SEPTEMBER 2005 − REVISED JANUARY 2006 TYPICAL CHARACTERISTICS +25°C and 150Ω, unless otherwise noted. TURN−ON TIME Time (1µs/div) OUTPUT VOLTAGE vs OUTPUT CURRENT 3.0 2.5 2.0 1.5 1.0 +125 (A) OUT DIFFERENTIAL GAIN ...

  • Page 7

    ... APPLICATIONS INFORMATION The OPA361 video amplifier has been optimized to fit seamlessly with Texas Instruments’ Multimedia processor. The following features have been integrated to provide excellent video performance. D Internal gain setting resistors (G = 5.2V/V) reduce the number of external components needed in the video circuit. ...

  • Page 8

    ... Figure 2. Filter Structure of the OPA361 8 The Enable logic input voltage is referenced to the OPA361 GND pin. A logic level HIGH applied to the enable pin enables the op amp. The logic levels are compatible with 1.8V CMOS logic levels. A valid logic HIGH is defined as > 1.3V above GND. A valid logic LOW is defined as < ...

  • Page 9

    ... OPA361. As shown in Figure 5 and Figure 6, the top line illustrates the full signal and the bottom line is a more detailed view of the last three sine wave bursts. ...

  • Page 10

    ... The TV-detection feature of the OPA361 works in conjunction with the OMAP242x (or other processors) to detect if a television is connected to the video output of the device. In order to detect a TV load, the OPA361 is briefly turned off, ideally during the first vertical sync pulse. For the detection, a simple pull-up resistor to the processor logic supply is used on the output of the OPA361 ...

  • Page 11

    ... GND if no video load is connected; this helps to conserve battery life. The typical leakage when the output is pulled high and OPA361 is disabled is only about 300pA. SBOS334A − SEPTEMBER 2005 − REVISED JANUARY 2006 Regulator V ...

  • Page 12

    ... SC70 OPA361AIDCKRG4 ACTIVE SC70 OPA361AIDCKT ACTIVE SC70 OPA361AIDCKTG4 ACTIVE SC70 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. ...

  • Page 13

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing OPA361AIDCKR SC70 DCK OPA361AIDCKT SC70 DCK PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 6 3000 179.0 8.4 2.2 6 250 179.0 8.4 2.25 Pack Materials-Page 1 30-May-2009 B0 (mm) ...

  • Page 14

    ... Device Package Type OPA361AIDCKR SC70 OPA361AIDCKT SC70 PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DCK 6 3000 DCK 6 250 Pack Materials-Page 2 30-May-2009 Width (mm) Height (mm) 195.0 200.0 45.0 195.0 200.0 45.0 ...

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  • Page 17

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...