IC VGA DIG CONTROL 32-QFN
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LT5554IUH#TRPBF Product Details
The LT5554IUH#TRPBF is a 7-bit digitally controlled programmable gain (PG) amplifier with 16dB gain control range. It consists of a 50Ω input variable attenuator, followed by a high linearity variable transconductance amplifier. The coarse 4dB input attenuator step is implemented via 2-bits of digital control (PG5, PG6). The ﬁne transconductance amplifier 0.125dB step within 3.875dB gain control range is set via 5-bits digital control (PG0 to PG4). The LT5554IUH#TRPBF gain control inputs (PGx) and the STROBE input can be directly coupled to TTL or ECL drivers. The seven parallel gain control inputs time skew can be eliminated by using the STROBE input positive transition.
The internal output resistor RO = 400Ω limits the maximum overall gain to 36dB for open outputs. The internal circuitry of open output collectors enables the LT5554IUH#TRPBF to be unconditionally stable over any loading conditions (including external SAW ﬁlters) and provides –80dB reverse isolation at 300MHz.
The LT5554IUH#TRPBF is internally protected during overdrive and has an on-chip power supply regulator.
With 0.125dB step resolution and 5ns settling time, the LT5554IUH#TRPBF is suitable in applications where continuous gain control is required.
- 1GHz Bandwidth at all Gains
- 48dBm OIP3 at 200MHz, 2VP-P into 50Ω, ROUT = 100Ω
- –88dBc IMD3 at 200MHz, 2VP-P into 50Ω, ROUT = 100Ω
- 1.4nV/√Hz Input-Referred-Noise (RTI)
- 20dBm Output P1dB at 70MHz, ROUT = 130Ω
- 2dB to 18dB Gain Range (ROUT = 50Ω)
- 0.125dB Gain Step Size
- 30ps Group Delay Variation
- 5ns Fast Gain Settling Time
- 5ns Fast Overdrive Recovery
- –80dB Reverse Isolation
- Differential ADC Driver
- IF Sampling Receivers
- VGA IF Power Ampliﬁer
- 50Ω Driver
|Applications||Variable Gain (VGA)||Voltage Supply, Single/Dual (??)||4.75V ~ 5.25V|
|Number of Circuits||1||Mounting Type||Surface Mount|
|3db Bandwidth||1GHz||Package / Case||32-WFQFN Exposed Pad|
|Current Supply||200mA||Supplier Device Package||32-QFN (5x5)|
LT5554 Technical Documentation/Data sheet
LT5554IUH#TRPBF Related Products
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Estimated Delivery Time: Mar 09 - Mar 14 days (choose Expedited at checkout).
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1.We provide 90 days warranty.
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.
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- We have a professional business development department to strictly test and verify the qualifications of AD original manufacturers and agents. All AD suppliers must pass the qualification review before they can publish their LT5554IUH#TRPBF devices; we pay more attention to the channels and quality of LT5554IUH#TRPBF 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 Variable Gain Amplifiers (VGA) ; Digital Control VGAs category, or find it through Analog Devices, Inc Information page.
- Q: Are the AD's LT5554IUH#TRPBF price and stock displayed on the platform accurate?
- The AD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT5554IUH#TRPBF, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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- Q: What is the process for returns or replacement of LT5554IUH#TRPBF?
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 LT5554IUH#TRPBF we delivered, we will accept the replacement or return of the LT5554IUH#TRPBF 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 LT5554IUH#TRPBF.
(3)The LT5554IUH#TRPBF 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.
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