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

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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.
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-9181PSM | DC - 26 GHz Distributed Amplifier | PSM | RoHS | Released | EAR99 |
| EVB-ADM-9181P | Evaluation Board, DC - 26GHz Distributed Amplifier | PSM | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-9181PSM | DC - 26 GHz Distributed Amplifier | PSM | RoHS | Released | EAR99 |
| EVB-ADM-9181P | Evaluation Board, DC - 26GHz Distributed Amplifier | PSM | REACH RoHS | Released | EAR99 |
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2024-08-29 | Initial Release |
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
Below is a top down ( "x-ray" ) view of the ADM-9181PSM.
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| 11 | ACG | 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. | |
| 12 | ACG | 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. | |
| 16 | RF 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. | |
| 23 | ACG | 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. | |
| 24 | ACG | 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. | |
| 4 | RF 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. | |
| 8 | Vb | 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. | |
| All Others | Non-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. | |
| Paddle | Gnd | The package ground paddle must be connected to a DC/RF ground potential with high thermal and electrical conductivity. |
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
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 | 15 | dBm |
| Parameter | Details | Rating |
|---|---|---|
| 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.
| Parameter | Min | Nominal | Max | Unit |
|---|---|---|---|---|
| Positive DC Current (Id) (No RF Input) | 82 | 130 | 190 | mA |
| Ambient Temperature | -40 | 25 | 85 | °C |
| Positive DC Bias Voltage (Vb) | 2 | 3 | 4.4 | V |
| Positive DC Voltage (Vd) | 4 | 5 | 6 | V |
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
Unless otherwise specified, electrical specifications apply at TA=+25°C, Vd = 6V, Vb = 3V.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Input IP2 1 | Vd = 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 2 | Vd = 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 |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Input IP2 1 | Vd = 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 2 | Vd = 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.
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
Performance shown vs frequency and bias conditions with PCB trace losses de-embedded.
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
Performance shown vs RF input drive level, frequency and bias. PCB trace losses are included in these measurements.
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
ADM-9181PSM
DC - 26 GHz Distributed Amplifier
Download : Footprint Drawing
ADM-9181PSM
DC - 26 GHz Distributed Amplifier