Device Overview

General Description

The ADM-8556 is a wideband low noise amplifier capable of providing 24 dB gain and a low 1.3 dB typical noise figure from 6 to 20 GHz. The ADM-8556 is an ideal linear signal amplifier for applications requiring low power consumption and small form-factors. ADM-8556 is available in bare die and connectorized module forms. The amplifier has excellent return losses and gain flatness.

Photo of ADM-8556PC

Features

  • 24 dB typical gain
  • 1.3 dB typical noise figure
  • Single Supply, Positive Only Bias
  • Low power consumption

Applications

  • Test and Measurement Equipment
  • Radar and satellite communications

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageConnectorsGreen StatusProduct LifecycleExport Classification
ADM-8556PC6 - 20 GHz Distributed AmplifierPCStandard

RoHS

REACH

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2023-07-01Datasheet Initial Release
A2023-11-02Updated VB pin identification to be consistent throughout datasheet.

Rev: A | Copyright © 2023 Marki Microwave LLC.

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Port Configuration and Functions

Port Diagram

Diagram of the port configuration for ADM-8556PC

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
GNDGround -Housing or ground lug must be connected to a DC/RF ground potential with high thermal and electrical conductivity.Equivalent circuit for the Ground
RF InRF Input SMAFThis is the amplifier’s RF Input port. It is RF matched to 50 Ω and has built-in DC blocking capacitors.Equivalent circuit for the RF Input
RF OutRF Output SMAMThis is the amplifier’s RF Output port. It is RF matched to 50 Ω and has built-in DC blocking capacitors. Equivalent circuit for the RF Output
VbPositive Bias Pin -The VB pin provides a required positive bias which supplies the current mirror. A higher voltage results in a higher current draw through the RF Out port. This pin is nominally set at +3V.Equivalent circuit for the Positive Bias Pin
VdDrain Supply Pin -The VD pin supplies DC voltage to the drain of the amplifier IC. This pin is nominally set at +3V.Equivalent circuit for the Drain Supply Pin

Rev: A | Copyright © 2023 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may become inoperable or have a reduced lifetime. Reliability limits are individual, instantaneous catastrophic limits only. Functional operation limits are indicated below. Operation of the device at multiple absolute maximum limits or for extended periods at a single limit can cause degradation and damage to the device

ParameterMaximum RatingUnit
Bias Current (Ib) 10mA
Bias Supply Voltage (Vb) 4V
Drain Current (Id) (RF Applied) 175mA
Drain Supply Voltage (Vd) 4V
Maximum Operating Temperature for MTTF > 1E6 hours 85°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature for MTTF > 1E6 hours -40°C
Minimum Storage Temperature -55°C
RF Power Handling 15dBm

Package Information

ParameterDetailsRating
Dimensions-21.85 x 13.21 mm

The Recommended Operating Conditions indicate the limits, inside which the device should be operated, to guarantee the performance given in Electrical Specifications. Operating outside these limits may not necessarily cause damage to the device, but the performance may degrade outside the limits of the electrical specifications. For limits, above which damage may occur, see Absolute Maximum Ratings.

ParameterMinNominalMaxUnit
Ambient Temperature -402585°C
Bias Supply DC Voltage (Vb) 2.533.5V
Power Supply DC Voltage (Vd) 2.433.5V
Power Supply DC Current (Id) (No RF Input) 506786mA

Rev: A | Copyright © 2023 Marki Microwave LLC.

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Electrical Specifications

Unless otherwise specified, electrical specifications apply at TA=+25°C, Vd = 3V, Vb = 3V.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Saturated Output Power Vd = 3V, Vb = 3V
6 20-17-dBm
Small Signal Gain Vd = 3V, Vb = 3V, Pin = -20dBm
15 201821-dB
Current Consumption Vd = 3V, Vb = 3V, no RF input
6 20-67-mA
Input Return Loss Vd = 3V, Vb = 3V, Pin = -20dBm
6 20-10-dB
Noise Figure Vd = 3V, Vb = 3V, Pin = -20dBm
6 20-1.7-dB
Output IP3 Vd = 3V, Vb = 3V, Pin = -20dBm
6 20-26-dBm
Output P1dB Vd = 3V, Vb = 3V
6 20-15-dBm
Output Return Loss Vd = 3V, Vb = 3V, Pin = -20dBm
6 20-15-dB
Reverse Isolation Vd = 3V, Vb = 3V, Pin = -20dBm
6 20-45-dB
Small Signal Gain Vd = 3V, Vb = 3V, Pin = -20dBm
6 152023-dB

Rev: A | Copyright © 2023 Marki Microwave LLC.

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Typical Performance Plots

Small Signal Gain (dB) vs. Frequency, over Bias graph for ADM-8556PC
Output P1dB (dBm) vs. Frequency, over Bias graph for ADM-8556PC
Noise Figure (dB) vs. Frequency, over Bias graph for ADM-8556PC
Psat (dBm) vs. Frequency, over Bias graph for ADM-8556PC
Output IP3 (dBm) vs. Frequency, over Bias graph for ADM-8556PC
Input IP3 (dBm) vs. Frequency, over Bias graph for ADM-8556PC
Output IP2 (dBm) vs. Frequency, over Bias graph for ADM-8556PC
Reverse Isolation (dB) vs. Frequency, over Bias graph for ADM-8556PC

Rev: A | Copyright © 2023 Marki Microwave LLC.

6

Input Return Loss (dB) vs. Frequency, over Bias graph for ADM-8556PC
Output Return Loss (dB) vs. Frequency, over Bias graph for ADM-8556PC
Small Signal Gain (dB) vs. Frequency, over Temperature, Nom. Bias graph for ADM-8556PC
Output P1dB (dBm) vs. Frequency, over Temperature, Nom. Bias graph for ADM-8556PC
Noise Figure (dB) vs. Frequency, over Temperature, Nom. Bias graph for ADM-8556PC
Output Power (dBm), Gain (dB), and PAE (%) vs. Input Power graph for ADM-8556PC

Rev: A | Copyright © 2023 Marki Microwave LLC.

7

Mechanical Data

Outline Drawing

Download : Outline 3D Drawing Outline 3D STP

Outline Drawing

Notes:

1. All measurements are typical.

2. Ground lug and bias pins are solderable.

Rev: A | Copyright © 2023 Marki Microwave LLC.

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