Device Overview

General Description

The ADM-9181PSM is a wideband distributed amplifier capable of providing 14.5 dB gain and +31 dBm OIP3 from 100MHz to 22 GHz. The ADM-9181PSM is an ideal linear signal amplifier for applications requiring low power consumption and small form-factors. The amplifier has excellent return losses and gain flatness.

Photo of ADM-9181PSM

Features

  • 14.5dB typical Gain
  • +31dBm typical OIP3
  • Flat gain response
  • Excellent return losses

Applications

  • Communication Systems
  • Test and Measurement Equipment
  • Satellite Communications
  • Electronic Warfare

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
ADM-9181PSMDC - 26 GHz Distributed AmplifierPSM

RoHS

ReleasedEAR99
EVB-ADM-9181PEvaluation Board, DC - 26GHz Distributed AmplifierPSM

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2024-08-29Initial Release

Rev: - | Copyright © 2024 Marki Microwave LLC.

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Port Configuration and Functions

Port Diagram

Below is a top down ( "x-ray" ) view of the ADM-9181PSM.

Diagram of the port configuration for ADM-9181PSM

Rev: - | Copyright © 2024 Marki Microwave LLC.

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Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
11ACG Pin 11 is used to provide additional off-chip bypass capacitance. A 0.1uF capacitor should be placed between this pin and ground for normal operation.Equivalent circuit for the ACG
12ACG Pin 12 is used to provide additional off-chip bypass capacitance. A 100pF capacitor should be placed between this pin and ground for normal operation.Equivalent circuit for the ACG
16RF Out / Vd Pin 16 connects to the drain of the amplifier and serves as both the RF output port and the DC supply for the amplifier. This pin requires an external bias-tee and should be connected to +6V for normal operation.Equivalent circuit for the RF Out / Vd
23ACG Pin 23 is used to provide additional off-chip bypass capacitance. A 0.1uF capacitor should be placed between this pin and ground for normal operation.Equivalent circuit for the ACG
24ACG Pin 24 is used to provide additional off-chip bypass capacitance. A 100pF capacitor should be placed between this pin and ground for normal operation.Equivalent circuit for the ACG
4RF Input Pin 4 is the amplifier's RF input pin. This pin is internally RF matched to 50 Ohms and requires an external DC blocking capacitor.Equivalent circuit for the RF Input
8Vb Pin 8 provides positive DC bias voltage to the amplifier. This pin is internally connected to a current mirror controlling amplifier drain current. A higher voltage on this pin results in higher current draw through the Vd / RF out pin. The voltage on this pin should be set to +3V for normal operation.Equivalent circuit for the Vb
All OthersNon-connect (NC) Pins other than those specifically called out in this table are not internally connected to the amplifier die. These pins should be connected to ground for normal operation. Datasheet performance is measured on an evaluation board with these pins grounded.Equivalent circuit for the Non-connect (NC)
PaddleGnd The package ground paddle must be connected to a DC/RF ground potential with high thermal and electrical conductivity.Equivalent circuit for the Gnd

Rev: - | Copyright © 2024 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 any one of 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 Supply Voltage (Vb) 6.5V
Drain Current (Id) (No RF Applied) 250mA
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 -65°C
Positive Drain Supply Voltage (Vd) 8V
RF Input Power 15dBm

Package Information

ParameterDetailsRating
Dimensions-4 x 4 mm
Moisture Sensitivity Level-MSL 1

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
Positive DC Current (Id) (No RF Input) 82130190mA
Ambient Temperature -402585°C
Positive DC Bias Voltage (Vb) 234.4V
Positive DC Voltage (Vd) 456V

Rev: - | Copyright © 2024 Marki Microwave LLC.

5

Electrical Specifications

Unless otherwise specified, electrical specifications apply at TA=+25°C, Vd = 6V, Vb = 3V.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Input IP2 1Vd = 6V, Vb = 3V
0.1 13-24-dBm
Input IP3 Vd = 6V, Vb = 3V
0.1 26-17-dBm
Input Return Loss Vd = 6V, Vb = 3V, Pin = -20dBm
0.1 26-15-dB
Noise Figure Vd = 6V, Vb = 3V, Pin = -20dBm
0.1 6-6-dB
Noise Figure Vd = 6V, Vb = 3V, Pin = -20dBm
6 26-3.2-dB
Output IP2 2Vd = 6V, Vb = 3V
0.1 13-38-dBm
Output IP3 Vd = 6V, Vb = 3V
0.1 26-31-dBm
Output P1dB Vd = 6V, Vb = 3V
0.1 16-22-dBm
Output P1dB Vd = 6V, Vb = 3V
16 26-19-dBm
Output Return Loss Vd = 6V, Vb = 3V, Pin = -20dBm
0.1 26-18-dB
Reverse Isolation Vd = 6V, Vb = 3V, Pin = -20dBm
0.1 26-37-dB
Saturated Output Power Vd = 6V, Vb = 3V, Pin = +14dBm
0.1 26-23-dBm
Small Signal Gain Vd = 6V, Vb = 3V, Pin = -20dBm
0.1 26-14.5-dB

[1][2] IP2 is specified up to an input frequency of 13GHz where the IM2 product becomes attenuated by the frequency response of the amplifier.

Rev: - | Copyright © 2024 Marki Microwave LLC.

6

Performance Plots vs Bias

Performance shown vs frequency and bias conditions with PCB trace losses de-embedded.

Small Signal Gain (dB) graph for ADM-9181PSM
Output P1dB (dBm) vs. Frequency graph for ADM-9181PSM
Input Return Loss (dB) vs. Frequency graph for ADM-9181PSM
Output Return Loss (dB) graph for ADM-9181PSM
OIP3 (dBm) graph for ADM-9181PSM
Noise Figure (dB) graph for ADM-9181PSM
Reverse Isolation (dB) graph for ADM-9181PSM
Pout vs Frequency graph for ADM-9181PSM

Rev: - | Copyright © 2024 Marki Microwave LLC.

7

PSat (dBm) vs. Frequency graph for ADM-9181PSM

Rev: - | Copyright © 2024 Marki Microwave LLC.

8

Performance Plots vs Input Drive Level

Performance shown vs RF input drive level, frequency and bias. PCB trace losses are included in these measurements.

PAE [%] graph for ADM-9181PSM
PAE [%] graph for ADM-9181PSM
PAE [%] graph for ADM-9181PSM
Output Power vs. Input Power (dBm) graph for ADM-9181PSM
Output Power vs. Input Power (dBm) graph for ADM-9181PSM
Output Power vs. Input Power (dBm) graph for ADM-9181PSM

Rev: - | Copyright © 2024 Marki Microwave LLC.

9

Id (mA) vs. Pin (dBm) graph for ADM-9181PSM
Id (mA) vs. Pin (dBm) graph for ADM-9181PSM
Id (mA) vs. Pin (dBm) graph for ADM-9181PSM

Rev: - | Copyright © 2024 Marki Microwave LLC.

10

Application Circuit

Application Circuit for ADM-9181PSM

Rev: - | Copyright © 2024 Marki Microwave LLC.

11

Mechanical Data

Outline Drawing

Download : Outline 2D Drawing

Outline Drawing

Rev: - | Copyright © 2024 Marki Microwave LLC.

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Rev: - | Copyright © 2024 Marki Microwave LLC.

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Evaluation Board - Outline Drawing

Outline Drawing

Rev: - | Copyright © 2024 Marki Microwave LLC.

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