AD8366

Features: Matched Pair of Differential Digitally-Controlled VGAsGain Range: 4.5 dB to 20.5 dBStep 0.25 dBOperating frequencyDC to 500MHz800MHz 3-dB bandwidthNF 10.5 dB @ max. gain, 18dB @ min. gain at 10MHzOIP3 36dBVrms at 10MHzHD2, HD3 > 88dBc for 2Vpp output at 10MHz at max gainDifferential I...

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SeekIC No. : 004272241 Detail

AD8366: Features: Matched Pair of Differential Digitally-Controlled VGAsGain Range: 4.5 dB to 20.5 dBStep 0.25 dBOperating frequencyDC to 500MHz800MHz 3-dB bandwidthNF 10.5 dB @ max. gain, 18dB @ min. gain ...

floor Price/Ceiling Price

Part Number:
AD8366
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/3/10

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Product Details

Description



Features:

Matched Pair of Differential Digitally-Controlled VGAs
Gain Range: 4.5 dB to 20.5 dB
Step 0.25 dB
Operating frequency
DC to 500MHz
800MHz 3-dB bandwidth
NF 10.5 dB @ max. gain, 18dB @ min. gain at 10MHz
OIP3 36dBVrms at 10MHz
HD2, HD3 > 88dBc for 2Vpp output at 10MHz at max gain
Differential Input and Output
Adjustable output common-mode
Optional DC output offset correction
Serial/Parallel Port Programmable
Power-down Feature
Single 5V Supply Operation





Application

Baseband I/Q receivers
Diversity receivers
ADC drivers
W-CDMA/CDMA/CDMA2000/GSM
Point-to-(Multi)Point Radio
CATV
Wireless local loop
WiMax





Specifications

-3 dB BW (MHz) 1000MHz
Supply Current 180mA
Package 32-Lead CSP


Table 2.
Parameter Rating
Supply Voltages VPSI, VPSO
ENBL, SENB, DENA, DENB, BIT0, BIT1, BIT2, BIT3, BIT4, BIT5
IPPA, IPMA, IPPB, IPMB
OPPA, OPMA, OPPB, OPMB
OFSA, OFSB
DECA, DECB, VCMA, VCMB, CCMA, CCMB
Internal Power Dissipation
JA (With Pad Soldered to Board)
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 60 sec)
5.5 V
TBD V
TBD V
TBD V
TBD V
TBD V
TBD mW
TBD/W
125
−40 to +85
−65 to +150
300





Description

The AD8366 is a matched pair of fully differential low-noise and low-distortion digitally programmable variable gain amplifiers. The gain of each amplifier can be programmed separately or simultaneously over a range of 5 dB to 21 dB in steps of 0.25 dB. The amplifier offers flat frequency performance and group delay from DC out to 150 MHz, independent of gain code.

The AD8366 offers excellent spurious-free dynamic range, suitable for driving 12-bit ADCs. The NF at max gain is 10.5 dB at 10 MHz and increases 2dB for every 4dB decrease in gain. Over the entire gain range, the HD3 and HD2 are >88dBc for 2 V p-p at the output at 10 MHz into 500 . The 2-tone intermodulation distortion of -90dBc into 200 translates to an OIP3 of 43 dBm. The differential input impedance is 200 to provide a well-defined termination. The differential output is voltage-mode with a low impedance of 30 .

The output common-mode defaults to Vps/2 but can be programmed via pins VCMA and VCMB over a range of voltages. The built-in DC-offset compensation loop can be disabled if DC-coupled operation is desired. The high-pass corner is defined by external capacitors on pins OFSA and OFSB. The input common mode also defaults to Vps/2 but can be driven from 1.2V to 3.4V.

The digital interface allows for parallel or serial gain programming. The AD8366 operates off a 4.5V to 5.5V supply and consumes a supply current of 175mA. When disabled, it consumes ~ 4mA. The AD8366 is fabricated using Analog Devices' advanced Silicon-Germanium bipolar process and is available in a 32-lead exposed paddle LFCSP package. Performance is specified over a -40to +85temperature range.






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