LT5554 Datasheet Broadband Ultra Low Distortion 7-Bit Digitally Controlled VGA

Manufacturer: Linear Technology (now Analog Devices)

Datasheet Details

Part number	LT5554
Manufacturer	Linear Technology (now Analog Devices)
File Size	597.92 KB
Description	Broadband Ultra Low Distortion 7-Bit Digitally Controlled VGA
Datasheet	LT5554 Datasheet

The LT®5554 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).

n 1GHz Bandwidth at all Gains n 48dBm OIP3 at 200MHz, 2VP-P into 50Ω, ROUT = 100Ω n.
88dBc IMD3 at 200MHz, 2VP-P into 50Ω, ROUT = 100Ω n 1.4nV/√Hz Input-Referred-Noise (RTI) n 20dBm Output P1dB at 70MHz, ROUT = 130Ω n 2dB to 18dB Gain Range (ROUT = 50Ω) n 0.125dB Gain Step Size n 30ps Group Delay Variation n 5ns Fast Gain Settling Time n 5ns Fast Overdrive Recovery n.
80dB Reverse Isolation.

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