Port Diagram
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Device Overview
General Description
The ADM-9181CH is a wideband distributed amplifier capable of providing 14.5 dB gain and +31 dBm OIP3 from 100MHz to 22 GHz. The ADM-9181CH 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.
Features
- 14.5dB typical gain Gain
- +31dBm typical OIP3
- Flat gain response
- Excellent return losses
Applications
- Communication Systems
- Test and Measurement Equipment
- Satellite Communications
- Electronic Warfare
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-9181CH | DC - 26 GHz Distributed Amplifier | CH | RoHS | Released | EAR99 |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-9181CH | DC - 26 GHz Distributed Amplifier | CH | RoHS | Released | EAR99 |
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Table Of Contents
- Device Overview
- Port Configuration and Functions
- Revision History
- Specifications
- Die Mounting Recommendations
- Operation
- Mechanical Data
- Evaluation Board
Revision History
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2024-08-29 | Initial Release |
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Port Configuration and Functions
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Port Functions
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| ACG1 | External Chip Capacitor | The ACG1 pad provides additional off chip bypass capacitance. A 0.1uF chip capacitor is recommended. |  |
| ACG2 | External Chip Capacitor | The ACG2 pad provides additional off chip bypass capacitance. A 100pF chip capacitor is recommended. | |
| ACG3 | External Chip Capacitor | The ACG3 pad provides additional off chip bypass capacitance. A 100pF chip capacitor is recommended. | |
| ACG4 | External Chip Capacitor | The ACG4 pad provides additional off chip bypass capacitance. A 0.1uF chip capacitor is recommended. | |
| GND | Gnd | Gnd is provided through the backside of the die and should be connected to a DC/RF ground potential with high thermal and electrical conductivity. |  |
| RF In | RF Input | This is the amplifier’s RF Input port. It is RF matched to 50 Ω and requires a DC blocking capacitor. |  |
| RF Out / Vd | RF Out / Vd | The RF Out/ Vd pad supplies DC voltage to the drain of the amplifier IC and also acts as the RF output. This pad requires an external bias-tee. Nominal voltage for Vd at this pad is +6V. |  |
| Vb | Positive bias | The Vb pad provides a required positive bias which supplies an internal current mirror. A higher voltage results in higher current draw through the VD / RF Out port. This port should be set to +3V for normal operation. |  |
ADM-9181CH
DC - 26 GHz Distributed Amplifier
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.
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Bias Supply Voltage (Vb) | 6.5 | V |
| Drain Current (Id) (No RF Applied) | 250 | mA |
| 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) | 8 | V |
| RF Input Power | 20 | dBm |
Package Information
| Parameter | Details | Rating |
|---|---|---|
| Dimensions | - | 2.3 x 1.5 mm |
Recommended Operating Conditions
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.
| Parameter | Min | Nominal | Max | Unit |
|---|---|---|---|---|
| Positive DC Current (Id) (No RF Input) | 82 | 130 | 190 | mA |
| Positive DC Bias Voltage (Vb) | 2 | 3 | 4.4 | V |
| Ambient Temperature | -40 | 25 | 85 | °C |
| Positive DC Voltage (Vd) | 4 | 5 | 6 | V |
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Electrical Specifications
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Input IP2 1 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 13 | - | 24 | - | dBm |
| Input IP3 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 17 | - | dBm |
| Input Return Loss | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 19 | - | dB |
| Noise Figure | Vd = 6V, Vb = 3V, Pin = -20dBm | 6 | 26 | - | 3.4 | - | dB |
| Noise Figure | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 6 | - | 6 | - | dB |
| Output IP2 2 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 13 | - | 38 | - | dBm |
| Output IP3 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 31 | - | dBm |
| Output P1dB | Vd = 6V, Vb = 3V | 0.1 | 20 | - | 22 | - | dBm |
| Output P1dB | Vd = 6V, Vb = 3V | 20 | 26 | - | 18.5 | - | dBm |
| Output Return Loss | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 23 | - | dB |
| Reverse Isolation | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 38 | - | dB |
| Small Signal Gain | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 14.5 | - | dB |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Input IP2 1 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 13 | - | 24 | - | dBm |
| Input IP3 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 17 | - | dBm |
| Input Return Loss | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 19 | - | dB |
| Noise Figure | Vd = 6V, Vb = 3V, Pin = -20dBm | 6 | 26 | - | 3.4 | - | dB |
| Noise Figure | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 6 | - | 6 | - | dB |
| Output IP2 2 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 13 | - | 38 | - | dBm |
| Output IP3 | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 31 | - | dBm |
| Output P1dB | Vd = 6V, Vb = 3V | 0.1 | 20 | - | 22 | - | dBm |
| Output P1dB | Vd = 6V, Vb = 3V | 20 | 26 | - | 18.5 | - | dBm |
| Output Return Loss | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 23 | - | dB |
| Reverse Isolation | Vd = 6V, Vb = 3V, Pin = -20dBm | 0.1 | 26 | - | 38 | - | dB |
| 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.
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Typical Performance vs. Bias
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ADM-9181CH
DC - 26 GHz Distributed Amplifier
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ADM-9181CH
DC - 26 GHz Distributed Amplifier
Application Circuit
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Mechanical Data
Outline Drawing
Download : Outline 2D Drawing
Notes:
- CH substrate is 0.004 thick GaAs.
- I/O trace is 5 microns and ground plane is 4 microns Au.
- Tolerance for X, Y dimensions is ± 0.002 in.
- Tolerance for Z dimensions is ± 0.0005 in.
- Tolerance for pad location is ± 0.0001 in.
ADM-9181CH
DC - 26 GHz Distributed Amplifier
Evaluation Board - Outline Drawing
