ATD00-0040PSM_0dB DC - 40GHz MMIC Differential Attenuator

Device Overview

General Description

The ATD00-0040PSM is a surface mount GaAs MMIC 0dB differential attenuator housed in a DFN package. This attenuator provides a through line that is form fit to the ATD##-0040PSM family of attenuators. The compact DFN package allows for extreme miniaturization of SMT footprints. GaAs MMIC technology provides consistent unit-to-unit performance in a small, low-cost form factor. A 50-ohm match is maintained over the entire operating frequency range.

Download s-parameters here

Features

Small 1.3 x 2.0 mm Package Size
0dB Attenuation From DC to 40 GHz
17dB Typical Return Loss Over Operating Band

Applications

Test Equipment
Electronic Warfare
Radar and satellite communications
High Channel Count Systems

Functional Block Diagram

Part Ordering Options

Part Number	Description	Package	Green Status	Product Lifecycle	Export Classification
ATD00-0040PSM	0dB DC - 40GHz MMIC Differential Attenuator	DFN	REACH RoHS	Released	EAR99

Part Number

Description

Package

Green Status

Product Lifecycle

Export Classification

ATD00-0040PSM

0dB DC - 40GHz MMIC Differential Attenuator

DFN

REACH

RoHS

Released

EAR99

Part Number	Description	Package	Green Status	Product Lifecycle	Export Classification
ATD00-0040PSM	0dB DC - 40GHz MMIC Differential Attenuator	DFN	REACH RoHS	Released	EAR99

Device Overview
Port Configuration and Functions
- Port Diagram
- Port Functions
Revision History
Specifications
Mechanical Data
- Outline Drawing
Footprint Image

Revision History

Revision Code	Revision Date	Comment
-	2026-08-03	Initial Release

Port Configuration and Functions

Port Diagram

Diagram of the port configuration for ATD00-0040PSM

Port Functions

Port	Function	Description
Ground Paddle	Gnd	Ground paddle should be connected to RF ground
Pin 1	Input/Output 1	Pin 1 is DC short to Pin 4
Pin 2	Non-connect (NC)	Pin 2 is not connected internally and should be tied to RF ground.
Pin 3	Input/Output 2	Pin 3 is DC short to Pin 6
Pin 4	Input/Output 1	Pin 4 is DC short to Pin 1
Pin 5	Non-connect (NC)	Pin 5 is not connected internally and should be tied to RF ground.
Pin 6	Input/Output 2	Pin 6 is DC short to Pin 3

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 be inoperable or have a reduced lifetime.

Parameter	Maximum Rating	Unit
Maximum Operating Temperature	100	°C
Maximum Storage Temperature	125	°C
Minimum Operating Temperature	-55	°C
Minimum Storage Temperature	-65	°C
DC Current	200	mA

Package Information

Parameter	Details	Rating
ESD	250 to < 500 Volts	HBM Class 1A
Dimensions	-	2.0 x 1.3 mm
Moisture Sensitivity Level	-	MSL 1

Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C.

Parameter	Test Conditions	Maximum Frequency (GHz)	Min	Typ	Max	Unit
Attenuation	Temp = 25°C	40	-	0.3	-	dB
Return Loss	Temp = 25°C	40	-	17	-	dB
Attenuation Flatness ¹	Temp = 25°C	40	-	0.6	-	dB
Phase Balance	-	40	-	4	-	°
Amplitude Balance	-	40	-	0.1	-	dB

Parameter	Test Conditions	Maximum Frequency (GHz)	Min	Typ	Max	Unit
Attenuation	Temp = 25°C	40	-	0.3	-	dB
Return Loss	Temp = 25°C	40	-	17	-	dB
Attenuation Flatness ¹	Temp = 25°C	40	-	0.6	-	dB
Phase Balance	-	40	-	4	-	°
Amplitude Balance	-	40	-	0.1	-	dB

^[1] Attenuation Flatness = Max(Insertion Loss) - Min(Insertion Loss)

Typical Performance Plot

Attenuation (dB) graph for ATD00-0040PSM

Return Loss (dB) graph for ATD00-0040PSM

Amplitude Balance (dB) graph for ATD00-0040PSM

Path 1 to Path 2 Isolation graph for ATD00-0040PSM

Phase Balance (°) graph for ATD00-0040PSM

Typical Mixed Mode Performance Plots

Mixed mode scattering parameters are used to characterize differential circuits. For differential attenuators this means that the 2 input ports become a single 100Ω differential port and the 2 output ports become a single 100Ω differential port. The two-port s-parameters of the differential attenuators are then characterized based on differential (d) signals.