Port Diagram
Below is the port configuration diagram for the ADM-11123PSM (X-ray view).
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Device Overview
General Description
The ADM-11123PSM is a surface-mount, broadband gain block amplifier designed to operate from 2 to 20 GHz. Its broad bandwidth, 20.5 dB typical small signal gain, and low noise figure make it a strong fit for size, weight, and power constrained applications. At just 16 mA of DC current consumption from a single 3 V supply, it is among the lowest power options in its class, making it particularly well suited for phased array systems, thermally limited systems, as well as other power and temperature constrained applications. The device is internally matched to 50 ohms at both input and output, requires only a single bypass capacitor on the DC supply line, and has no sequencing requirements, further simplifying integration and minimizing board space. The ADM-11123PSM is packaged in a compact 4 x 4 mm plastic QFN for easy integration with automated assembly processes.
Features
- High Gain, 20.5 dB Typical
- Minimal Application Circuit
- Single Positive Supply Voltage
- Low DC Power Consumption, 48 mW
Applications
- Phased Array Systems
- Electronic Warfare
- Satellite Communications
- Test and Measurement Equipment
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-11123PSM | 2 - 20 GHz, Broadband Gain Block | Plastic QFN | REACH RoHS | Released | EAR99 |
| EVB-ADM-11123P | Evaluation Board, 2-20 GHz Broadband Gain Block | EVB | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-11123PSM | 2 - 20 GHz, Broadband Gain Block | Plastic QFN | REACH RoHS | Released | EAR99 |
| EVB-ADM-11123P | Evaluation Board, 2-20 GHz Broadband Gain Block | EVB | REACH RoHS | Released | EAR99 |
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Table Of Contents
- Device Overview
- Port Configuration and Functions
- Revision History
- Specifications
- Operation
- Mechanical Data
- Footprint Image
- Evaluation Board
Revision History
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2026-03-27 | Initial Release |
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Port Configuration and Functions
Port Functions
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Ground | Ground paddle and non-connected pins must be connected to a DC/RF ground potential with high thermal and electrical conductivity, and low inductance. |  |
| Pin 13 | RF Output | Pin 13 is the amplifier's RF output pin. This port is internally matched to 50 Ohms and is internally DC shorted to GND. This pin may be left floating if no DC is present on the line but should be DC blocked otherwise. |  |
| Pin 17 | Vd | Pin 17 is the DC bias supply for the amplifier. The voltage at this pin should be set to 4V for normal operation. This part requires an off-chip bypass capacitor of 0.1uF installed at this pin as close to the IC as possible. See applications circuit. |  |
| Pin 3 | RF Input | Pin 3 is the amplifier's RF input pin. This port is internally matched to 50 Ohms and is internally DC shorted to GND. This pin may be left floating if no DC is present on the line but should be DC blocked otherwise. |  |
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
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. This amplifier is designed and characterized in a 50Ω system, and operation in a reflective environment can cause performance degradation.
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Maximum Operating Temperature | 85 | °C |
| Maximum Storage Temperature | 150 | °C |
| Max Junction Temperature for MTTF > 1E6 hours | 175 | °C |
| Minimum Operating Temperature | -40 | °C |
| Minimum Storage Temperature | -65 | °C |
| Positive Drain Supply Current (with RF Input) | 36 | mA |
| Positive Drain Supply Voltage (Vd) | 6 | V |
| RF Input Power | 10 | dBm |
| Thermal Resistance, θJC | 70 | ºC/W |
Package Information
| Parameter | Details | Rating |
|---|---|---|
| ESD | 250 to < 500 Volts | HBM Class 1A |
| Dimensions | - | 4 x 4 mm |
| Moisture Sensitivity Level | - | MSL 1 |
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 |
|---|---|---|---|---|
| Ambient Temperature | -40 | 25 | 85 | °C |
| Power Supply DC Voltage | 2 | 3 | 4 | V |
| Positive DC Current (Id) (No RF Input) | 10 | 16 | 23 | mA |
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Electrical Specifications
The electrical specifications apply at TA=+25°C in a 50Ω system. QFNs are 100% RF tested.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Small Signal Gain | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 20 | - | 20.5 | - | dB |
| Input Return Loss | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 20 | - | 14 | - | dB |
| Output Return Loss | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 20 | - | 19 | - | dB |
| Reverse Isolation | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 30 | - | 30 | - | dB |
| Noise Figure | Vd = 3V, Id = 16mA | 2 | 20 | - | 2.5 | - | dB |
| Output P1dB | Vd = 3V, Id = 16mA | 2 | 20 | - | 4.8 | - | dBm |
| Saturated Output Power | Vd = 3V, Id = 16mA | 2 | 20 | - | 7.3 | - | dBm |
| Output IP2 | Vd = 3V, Id = 16mA, -30dBm input tone power, 1 MHz spacing | 2 | 14 | - | 26 | - | dBm |
| Output IP3 | Vd = 3V, Id = 16mA, -25dBm input tone power, 1 MHz spacing | 2 | 20 | - | 16 | - | dBm |
| Input IP2 | Vd = 3V, Id = 16mA, -30dBm input tone power, 1 MHz tone spacing | 2 | 14 | - | 5.6 | - | dBm |
| Input IP3 | Vd = 3V, Id = 16mA, -25dBm input tone power, 1 MHz spacing | 2 | 20 | - | -3.8 | - | dBm |
| Current Consumption 1 | Vd = 3V | - | - | - | 16 | - | mA |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Small Signal Gain | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 20 | - | 20.5 | - | dB |
| Input Return Loss | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 20 | - | 14 | - | dB |
| Output Return Loss | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 20 | - | 19 | - | dB |
| Reverse Isolation | Vd = 3V, Id = 16mA, -25dBm input power | 2 | 30 | - | 30 | - | dB |
| Noise Figure | Vd = 3V, Id = 16mA | 2 | 20 | - | 2.5 | - | dB |
| Output P1dB | Vd = 3V, Id = 16mA | 2 | 20 | - | 4.8 | - | dBm |
| Saturated Output Power | Vd = 3V, Id = 16mA | 2 | 20 | - | 7.3 | - | dBm |
| Output IP2 | Vd = 3V, Id = 16mA, -30dBm input tone power, 1 MHz spacing | 2 | 14 | - | 26 | - | dBm |
| Output IP3 | Vd = 3V, Id = 16mA, -25dBm input tone power, 1 MHz spacing | 2 | 20 | - | 16 | - | dBm |
| Input IP2 | Vd = 3V, Id = 16mA, -30dBm input tone power, 1 MHz tone spacing | 2 | 14 | - | 5.6 | - | dBm |
| Input IP3 | Vd = 3V, Id = 16mA, -25dBm input tone power, 1 MHz spacing | 2 | 20 | - | -3.8 | - | dBm |
| Current Consumption 1 | Vd = 3V | - | - | - | 16 | - | mA |
[1] Bias conditions for Id tested with no RF input power.
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Typical Performance Plots (vs Bias)
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ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
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ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Typical Performance Plots (vs Temperature)
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ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Application Circuit
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Mechanical Data
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Footprint Image
Download : Footprint Drawing
ADM-11123PSM
2 - 20 GHz, Broadband Gain Block
Evaluation Board - Outline Drawing
