Fabricated using the revolutionary complementary Silicon-Germanium (SiGe) BiCom3X process, the THS7374 is a low-power, single-supply 3 V to 5 V four-channel integrated video buffer. It incorporates a sixth-order Butterworth filter (able to be bypassed) which is useful as a digital-to-analog converter (DAC) reconstruction filter or an analog-to-digital converter (ADC) anti-aliasing filter. The 9.5-MHz filter is a perfect choice for SDTV video that includes composite (CVBS), s-video, Y'U'V', G'B'R' (R'G'B'), and Y'P'BP'R 480i/576i.
As part of the THS7374 flexibility, the input can be configured for either ac or dc-coupled inputs. The 300-mV output level shift allows for a full sync dynamic range at the output with 0-V input. The ac-coupled modes include a transparent sync-tip clamp option for CVBS, Y', and G'B'R' signals with sync. AC-coupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor.
The THS7374 is the perfect choice for all video buffer applications. Its rail-to-rail output stage with 6-dB gain allows for both ac and dc line driving. The ability to drive two lines per channel, or 75-Ω loads, allows for maximum flexibility as a video line driver. The 9.6-mA total quiescent current at 3.3 V and 0.1-µA disabled current makes it an excellent choice for portable or other power-sensitive applications.
The THS7374 is available in a TSSOP-14 package that is lead-free and green (RoHS) compliant.
|Number of Channels (#)|
|Vs (Min) (V)|
|Vs (Max) (V)|
|Filter -3dB Freq (Typ) (MHz)|
|No. Filter Poles|
|Diff Gain (%)|
|Diff Phase (deg)|
|Output Current (Typ) (mA)|
|Device Control Method|
|Iq Total (Typ) (mA)|
|Iq Disabled (Typ) (uA)|
|Operating Temperature Range (C)|
|Package Size (mm2=WxL)|
|Approx. Price (US$)|
|Bypass Bandwidth (Typ) (MHz)|
| AC-Bias |
| DC+Shift |
| DC+Shift |
|DC or AC||DC or AC||DC or AC|
|-40 to 85||-40 to 85||-40 to 85|
|14TSSOP: 32 mm2: 6.4 x 5||8SOIC: 29 mm2: 6 x 4.9||8SOIC: 29 mm2: 6 x 4.9|
|0.25 | 1ku||0.19 | 1ku||0.30 | 1ku|
|Sample & Buy||Sample & Buy||Sample & Buy|