MAATSS0018
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Functional Block Diagram
Features
Rev. V2
Single 10 dB Step
Low Loss: 0.3 dB @ 900 MHz
Lead-Free SOT-25 Package
100% Matte Tin Plating over Copper
Halogen-Free “Green” Mold Compound
260°C Reflow Compatible
RoHS* Compliant Version of AT-266
RF1
V2
GND
Description
The MAATSS0018 is a 1 bit, 10 dB step GaAs
MMIC digital attenuator in a lead-free SOT-25
surface mount plastic package.
The MAATSS0018 is ideally suited for use where
high accuracy, very low power consumption and low
intermodulation products are required. Typical
applications include radio, wireless LANs, GPS
equipment and other gain / level control circuits.
RF2
V1
Pin Configuration
Pin No.
Function
Description
1
RF1
RF In/Out
2
GND
RF Ground
3
RF2
RF In/Out
4
V1
Control Voltage
5
V2
Control Voltage
The MAATSS0018 is a GaAs MMIC using a mature
1-micron process. The process features full chip
passivation for increased performance and reliability.
Ordering Information1,2
Part Number
Package
MAATSS0018
Bulk Packaging
Handling Procedures
MAATSS0018TR
1000 piece reel
Please observe the following precautions to avoid
damage:
MAATSS0018SMB
Sample Board
Static Sensitivity
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
Gallium Arsenide Integrated Circuits are sensitive
to electrostatic discharge (ESD) and can be
damaged by static electricity. Proper ESD control
techniques should be used when handling these
devices.
* Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.
1
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAATSS0018
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V2
Electrical Specifications: TA = +25°C, VC = 0 V / -3 V, Z0 = 50 Ω
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Insertion Loss
0 - 1 GHz
1 - 2 GHz
dB
—
0.3
0.5
0.45
0.7
Attenuation
DC - 2 GHz
dB
9.5
10
10.5
VSWR
0 - 2 GHz
Ratio
—
1.4:1
—
IP3
2 Tone @ 0 dBm, 5 MHz spacing
dBm
—
50
—
P1dB
1 GHz
dBm
—
28
—
TRISE, TFALL
10% to 90% RF, 90% to 10% RF
ns
—
5
—
TON, TOFF
50% Control to 90% RF, 50% Control to 10% RF
ns
—
10
—
Transients
In Band
mV
—
6
—
Control Current
│VC│ = 3 V
µA
—
25
—
Absolute Maximum Ratings3,4
Parameter
Absolute Maximum
Input Power
50 MHz
500 - 2000 MHz
+27 dBm
+34 dBm
Control Voltage
-8.5 V < VC < +8 V
Operating Temperature
-40°C to +85°C
Storing Temperature
-65°C to +150°C
Truth Table5,6,7
V1
V2
Attenuation State
0
1
10 dB
1
0
Insertion Loss
5. For positive voltage control, external DC blocking capacitors
are required on all RF ports (pins 1, 2 and 3)
6. Differential voltage, V(state 1) - V(state 0), must be +2.8 V
minimum and less than 8 V.
7. 0 = -8 V to 0.2 V, 1 = -0.2 V to 8 V
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. MACOM does not recommend sustained operation near these
survivability limits.
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAATSS0018
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V2
Typical Performance Curves (39 pF capacitors used for positive voltage control)
Insertion Loss (Negative Control)
Insertion Loss (Positive Control)
1.0
1.0
+25°C
-40°C
+85°C
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0.0
0.0
0.5
1.0
+25°C
-40°C
+85°C
0.8
1.5
2.0
2.5
3.0
0.0
0.0
0.5
Frequency (GHz)
1.0
1.5
2.5
3.0
Relative Attenuation (Negative Control)
Relative Attenuation (Positive Control)
11.0
11.0
+25°C
-40°C
+85°C
+25°C
-40°C
+85°C
10.5
10.5
10.0
10.0
9.5
9.5
9.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
9.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Return Loss (10 dB State)
Return Loss (Reference State)
40
40
Positive Control
Negative Control
Positive Control
Negative Control
30
30
20
20
10
10
0
0.0
3
2.0
Frequency (GHz)
0.5
1.0
1.5
2.0
Frequency (GHz)
2.5
3.0
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAATSS0018
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V2
Lead-Free SOT-25†
† Reference Application Note M538 for lead-free solder reflow recommendations.
4
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAATSS0018
Digital Attenuator, 10 dB, 1-Bit
DC - 2.0 GHz
Rev. V2
M/A-COM Technology Solutions Inc. All rights reserved.
Information in this document is provided in connection with M/A-COM Technology Solutions Inc ("MACOM")
products. These materials are provided by MACOM as a service to its customers and may be used for
informational purposes only. Except as provided in MACOM's Terms and Conditions of Sale for such products or
in any separate agreement related to this document, MACOM assumes no liability whatsoever. MACOM
assumes no responsibility for errors or omissions in these materials. MACOM may make changes to
specifications and product descriptions at any time, without notice. MACOM makes no commitment to update
the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future
changes to its specifications and product descriptions. No license, express or implied, by estoppels or otherwise,
to any intellectual property rights is granted by this document.
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IMPLIED, RELATING TO SALE AND/OR USE OF MACOM PRODUCTS INCLUDING LIABILITY OR
WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, CONSEQUENTIAL OR
INCIDENTAL DAMAGES, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR
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THESE MATERIALS. MACOM SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS,
WHICH MAY RESULT FROM THE USE OF THESE MATERIALS.
MACOM products are not intended for use in medical, lifesaving or life sustaining applications. MACOM
customers using or selling MACOM products for use in such applications do so at their own risk and agree to
fully indemnify MACOM for any damages resulting from such improper use or sale.
5
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macomtech.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support