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100MHz Current Feedback Amplifier with DC Gain Control
| Manufacturer : | Analog Devices, Inc |
|---|---|
| Package/Case : | SOP8 |
| Product Categories : | Amplifiers,Buffers |
| Datasheet: | LT1228CS8 Datasheet (PDF) |
| RoHs Status: | Lead free/RoHS Compliant |
| Marking Code: | 1228 |
| In-stock: | 1974 |
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LT1228CS8 Product Details
The LT1228CS8 makes it easy to electronically control the gain of signals from DC to video frequencies. The LT1228CS8 implements gain control with a transconductance amplifier (voltage to current) whose gain is proportional to an externally controlled current. A resistor is typically used to convert the output current to a voltage, which is then amplified with a current feedback amplifier. The LT1228CS8 combines both amplifiers into an 8-pin package, and operates on any supply voltage from 4V (±2V) to 30V (±15V). A complete differential input, gain controlled amplifier can be implemented with the LT1228CS8 and just a few resistors.
The LT1228CS8 transconductance amplifier has a high impedance differential input and a current source output with wide output voltage compliance. The transconductance, gm, is set by the current that flows into Pin5, ISET. The small signal gm is equal to ten times the value of ISET and this relationship holds over several decades of set current. The voltage at Pin 5 is two diode drops above the negative supply, Pin 4.
The LT1228CS8 current feedback amplifier has very high input impedance and therefore it is an excellent buffer for the output of the transconductance amplifier. The current feedback amplifier maintains its wide bandwidth over a wide range of voltage gains making it easy to interface the transconductance amplifier output to other circuitry. The current feedback amplifier is designed to drive low impedance loads, such as cables, with excellent linearity at high frequencies.
Feature
- Very Fast Transconductance Amplifier
- Bandwidth: 75MHz
- Outputs Swing Within 0.8V of Supplies
- gm = 10 × ISET
- Low THD: 0.2% at 30mVRMS Input
- Wide ISET Range: 1µA to 1mA
- Very Fast Current Feedback Amplifier
- Bandwidth: 100MHz
- Slew Rate: 1000V/µs
- Output Drive Current: 30mA
- Differential Gain: 0.04%
- Differential Phase: 0.1°
- High Input Impedance: 25MΩ, 6pF
- Wide Supply Range: ±2V to ±15V
- Inputs Common Mode to Within 1.5V of Supplies
- Supply Current: 7mA
- Available in 8-Lead PDIP and SOIC Packages
Applications
- Video DC Restore (Clamp) Circuits
- Video Differential Input Amplifiers
- Video Keyer/Fader Amplifiers
- AGC Amplifiers
- Tunable Filters
- Oscillators
(Picture: Pinout)
(Picture: Diagram)
Technical Parameters
- Number of Circuits
- 1
- Number of Channels
- 1
- Slew Rate
- 3.50 kV/μs
- Product Lifecycle Status
- Transferred
- Mounting Style
- Surface Mount
- Number of Pins
- 8
- Case/Package
- SO
- RoHS
- Non-Compliant
- Lead Free Status
- Contains Lead
LT1228CS8 Datasheet
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LT1228 Technical Documentation/Data sheet
LT1228CS8 Related Products
Ratings and Reviews (1)
- 5 / 5
- 5 Stars 100%
- 4 Stars 0%
- 3 Stars 0%
- 2 Stars 0%
- 1 Stars 0%
-
**ndre***2020-03-28
tutto ok,venditore molto bravo!!!!
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2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
FAQ:
- Q: How does Jotrin guarantee that LT1228CS8 is the original manufacturer or agent of ADI?
- We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LT1228CS8 devices; we pay more attention to the channels and quality of LT1228CS8 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
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- You can use Jotrin's intelligent search engine, or filter by Video Amplifiers & Analog Video Functions ; Video Operational Amplifiers (Op Amps) category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's LT1228CS8 price and stock displayed on the platform accurate?
- The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT1228CS8, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days. - Q: What is the process for returns or replacement of LT1228CS8?
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the LT1228CS8 we delivered, we will accept the replacement or return of the LT1228CS8 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LT1228CS8.
(3)The LT1228CS8 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy. - Q: How to contact us and get support, such as LT1228CS8 datasheet pdf, LT1228 pin diagram?
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