Port Diagram
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Device Overview
General Description
The ADM1-0026PA is a complete LO driver solution for use with all Marki mixers up to 26.5 GHz. This single-stage packaged GaAs MMIC distributed amplifier integrates all required biasing circuitry. It offers 12 dB typical gain and 21 dBm saturated output power, which is suitable for driving all L, M, I, and H mixers. In saturation it produces a square wave that is optimal for driving a T3 with the highest linearity. The amplifier is operated with a +3V to +7 V positive bias and an optional current reducing negative voltage. While optimized as a mixer LO driver, it is suitable for many applications in test and measurement and laboratory applications.
Features
- Broadband 50 Ω Matching
- Unconditionally Stable
- Optimized for use as a T3 LO buffer amplifier
- Suitable for driving L, M, I, and H diode mixers
- Optional Positive Only Bias Operation
- Integrated Blocking Capacitors and Inductors
- 3rd and 5th Harmonic Generation
Applications
- Test and Measurement Equipment
- Laboratory Applications
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Connectors | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|---|
| ADM1-0026PA | Broadband Distributed Amplifier | PA | Standard | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Connectors | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|---|
| ADM1-0026PA | Broadband Distributed Amplifier | PA | Standard | REACH RoHS | Released | EAR99 |
ADM1-0026PA
Broadband Distributed Amplifier
Table Of Contents
- Device Overview
- Port Configuration and Functions
- Revision History
- Specifications
- Operation
- Mechanical Data
Revision History
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2020-01-07 | Initial Date Release |
ADM1-0026PA
Broadband Distributed Amplifier
Port Configuration and Functions
Port Functions
| Port | Function | Connector Type | Description | DC Equivalent Circuit |
|---|---|---|---|---|
| GND | Ground | - | The housing or outside of the coaxial cables must be connected to a DC/RF ground potential with high thermal and electrical conductivity. |  |
| RF In | RF Input | SMAF | The amplifier’s RF Input port is matched to 50 Ω and has built-in DC blocking capacitors. |  |
| RF Out | RF Output | SMAM | The amplifier’s RF Output port is matched to 50 Ω and has built-in DC blocking capacitors. | |
| Vd | Drain Supply Pin | - | Bias supply on Vd should be voltage limited below 9 V and current limited below 250 mA at all times. The operational bias voltage should be between 3 V and 7 V for full gain, efficiency, and linearity. In general linearity and output power will increase marginally with increased voltage from 3 to 7 V. |  |
| Vg | Negative bias | - | Bias on this pin is recommended. Application of a negative bias can reduce the current draw from the positive supply, slightly improve small signal gain at higher frequencies, significantly improve even order harmonic suppression, and improve nonlinear performance of a T3 mixer. Due to the reduced current, it may also extend the lifetime of the amplifier. The amplifier is designed to perform optimally when the negative bias voltage is adjusted so that the amplifier draws 150 mA on the positive supply. |  |
ADM1-0026PA
Broadband Distributed Amplifier
Specifications
Absolute Maximum Ratings
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Maximum Operating Temperature | 85 | °C |
| Maximum Storage Temperature | 150 | °C |
| Minimum Operating Temperature | -55 | °C |
| Minimum Storage Temperature | -65 | °C |
| Negative Bias Current | 0.5 | mA |
| Negative Bias Voltage | -2 | V |
| Positive Bias Current | 280 | mA |
| Positive Bias Voltage | 9 | V |
| Power Dissipation | 2.25 | W |
| RF Input Power | 15 | dBm |
Package Information
| Parameter | Details | Rating |
|---|---|---|
| ESD | < 250 Volts | HBM Class 0 |
| Dimensions | - | 28.45 x 14.99 mm |
ADM1-0026PA
Broadband Distributed Amplifier
Electrical Specifications
Specifications guaranteed from -55 to +85°C, measured in a 50-Ohm system.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Output P1dB | Vd: +3.0 to +7.0 / Vg: 0V | 0.005 | 26 | - | 19 | - | dBm |
| Current Consumption | Vd: +3.0 to +7.0 / Vg: -0.2 to -0.3 Volts | 0.005 | 26.5 | - | 165 | 250 | mA |
| Current Consumption | Vd: +3.0 to +7.0 / Vg: 0 Volts | 0.005 | 26.5 | - | 250 | 280 | mA |
| Input Power for Saturation | - | 0.005 | 26.5 | 5 | 10 | 15 | dBm |
| Input Return Loss | - | 0.005 | 26.5 | - | 13 | - | dB |
| Noise Figure | - | 0.005 | 26.5 | - | 4 | - | dB |
| Output IP3 | - | 0.005 | 26.5 | - | 25 | - | dBm |
| Output Return Loss | - | 0.005 | 26.5 | - | 17 | - | dB |
| Saturated Output Power | With Negative Bias | 0.005 | 26.5 | - | 20 | - | dBm |
| Small Signal Gain | - | 0.005 | 26.5 | - | 12 | - | dB |
| - | - | 0.005 | 26.5 | - | 17 | - | dBm |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Output P1dB | Vd: +3.0 to +7.0 / Vg: 0V | 0.005 | 26 | - | 19 | - | dBm |
| Current Consumption | Vd: +3.0 to +7.0 / Vg: -0.2 to -0.3 Volts | 0.005 | 26.5 | - | 165 | 250 | mA |
| Current Consumption | Vd: +3.0 to +7.0 / Vg: 0 Volts | 0.005 | 26.5 | - | 250 | 280 | mA |
| Input Power for Saturation | - | 0.005 | 26.5 | 5 | 10 | 15 | dBm |
| Input Return Loss | - | 0.005 | 26.5 | - | 13 | - | dB |
| Noise Figure | - | 0.005 | 26.5 | - | 4 | - | dB |
| Output IP3 | - | 0.005 | 26.5 | - | 25 | - | dBm |
| Output Return Loss | - | 0.005 | 26.5 | - | 17 | - | dB |
| Saturated Output Power | With Negative Bias | 0.005 | 26.5 | - | 20 | - | dBm |
| Small Signal Gain | - | 0.005 | 26.5 | - | 12 | - | dB |
| - | - | 0.005 | 26.5 | - | 17 | - | dBm |
ADM1-0026PA
Broadband Distributed Amplifier
Typical Performance Plots – Positive Bias Only
ADM1-0026PA
Broadband Distributed Amplifier
ADM1-0026PA
Broadband Distributed Amplifier
Typical Performance Plots – Positive and Negative Bias
ADM1-0026PA
Broadband Distributed Amplifier
ADM1-0026PA
Broadband Distributed Amplifier
Typical Performance Plots – All Bias
ADM1-0026PA
Broadband Distributed Amplifier
