This Product Selection Guide contains information to help select products in the Video Amps and Modules category on DigiKey.com
Video Amps and Modules are devices whose output is proportionally greater than its input. Items in this family are meant to be used in video circuits. The output types are Differential, Push-Pull, Rail-to-Rail, and Single-Ended with circuits ranging from 1 to 24 and the -3 dB bandwidth ranging from 800 kHz to 1.4 GHz. The current output per channel is 3.6 mA to 10 A with a voltage supply of ±1.2 V to 85 V.
SelectionCharacteristics
Specifications to determine which Video Amp or Module is right for your application.
Applications: Application is the type of equipment or environment the device will be used in, they are tested and typically rated by a third party to ensure certain minimum standards for the application they are intended for. You could use one with a higher rating, but you cannot use one with a lower rating as it will fail in that application. For example, you could use a medically rated device to replace a commercial device, but you cannot replace the medical device with the commercial device.
Output Type: Indicates the type of electrical signal the device provides, such as differential or single-ended.
Number of Circuits: Indicates the number of circuits of similar functions that are implemented within the device.
-3db Bandwidth: Characterizes the upper limit of an amplifier’s useful frequency response, indicating the frequency at which its gain has fallen by 3dB under specified test conditions. Commonly used instead of gain-bandwidth product for characterizing the speed of current-feedback amplifiers.
Slew Rate: Characterizes the maximum rate at which an amplifier can change its output voltage in response to a change in input. Measured under manufacturer-defined test conditions.
Current – Supply: This represents the maximum current to which a device will meet its given specifications. Exceeding this current may damage the device and/or other system components.
Current – Output / Channel: Typically this indicates the maximum current an output channel can provide.
Voltage – Supply, Single/Dual (+/-): Indicates the permissible supply voltage range for a device. Devices listed with a range that doesn’t include a +/- term are “single supply” capable, which typically implies a common-mode input range that includes the most-negative supply rail.
Mounting Type: Indicates how the device is attached.
Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the suppliers device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.
ProductExamples
8-SOIC Rail-to-Rail
| MFR PART # | THS7314DR |
|---|---|
| DIGI-KEY PART # | 296-26683-2-ND - Tape & Reel (TR) |
| MANUFACTURER | Texas Instruments |
| DESCRIPTION | Video Amp 3 Buffer 8-SOIC |
| DATASHEET | Click Here |
Schematic Symbol
Amplifier schematic symbol courtesy of Scheme-It please use the link for more information and symbols.
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