Port Diagram
Sales: 408-778-9952 | General: 408-778-4200 | Fax: 408-778-4300
Sales & Customer Support: [email protected]
Tech Support: [email protected]
Device Overview
General Description
The ADM-8475PSM is a high-linearity, low noise amplifier capable of providing 13 dB gain, +26 dBm OIP3 and 2 dB noise figure across a broad 0.5-18 GHz bandwidth. The amplifier's low power consumption, high dynamic range and small size make it a suitable choice as a linear signal amplifier for RF front-end, low SWaP applications. Compared to the sister ADM-8624PSM, the ADM-8475PSM has higher gain and lower noise. The ADM-8624PSM has flatter gain and lower return loss. The ADM-8624PSM is available in a compact 1.3 x 2 mm DFN package.
Features
13 dB flat gain response
+26 dBm output IP3
2 dB noise figure
No negative bias required
Applications
- Test and Measurement Equipment
- 5G transceivers
- SATCOM
- Radar
Functional Block Diagram
Part Ordering Options
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-8475PSM | 0.5 - 18 GHz High Dynamic Range Gain Block | DFN | REACH RoHS | Released | EAR99 |
| EVB-ADM-8475P | Evaluation Board, 0.5 - 18 GHz High Dynamic Range Gain Block Amplifier | EVB | REACH RoHS | Released | EAR99 |
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| ADM-8475PSM | 0.5 - 18 GHz High Dynamic Range Gain Block | DFN | REACH RoHS | Released | EAR99 |
| EVB-ADM-8475P | Evaluation Board, 0.5 - 18 GHz High Dynamic Range Gain Block Amplifier | EVB | REACH RoHS | Released | EAR99 |
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range 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 |
|---|---|---|
| - | 2023-06-09 | Initial Datasheet Release |
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Port Configuration and Functions
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Port Functions
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Paddle | Gnd | Package ground paddle must be connected to a DC/RF ground potential with high thermal and electrical conductivity. | - |
| Pin 1 | Vg1 | Pin 1 provides DC bias to the amplifier. Placement of an external series bias resistor allows this pin to be supplied by the same supply line providing 5V to Pin 5. Device drain current will change proportional to the current flowing into this pin. RF performance can be balanced with DC power consumption by adjusting the current into this pin. | - |
| Pin 2 | RF Input | Pin 2 is the RF Input port of the amplifier. It is internally RF matched to 50 Ω and requires an external DC blocking cap. | - |
| Pin 3 | ACG | Pin 3 should be AC grounded using a series RC network. See application section for details. DO NOT DC GROUND THIS PIN. | - |
| Pin 4,6 | NC | Pin 4 and Pin 6 are internally no-connects and should be connected to DC/RF ground. | - |
| Pin 5 | RF Out / Vd | Pin 5 is the RF Output port and is also the Vd port providing the main power supply to the amplifier. This pin is DC coupled and requires an external bias-T or discrete choke and DC blocking capacitor. This port is RF matched to 50 Ω. DC voltage at this pin should be set to 5V for normal operation. | - |
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
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 |
|---|---|---|
| Drain Bias Current (Id) | 75 | mA |
| Drain Supply Voltage (Vd) | 8 | V |
| Maximum Operating Temperature for MTTF > 1E6 hours | 85 | °C |
| Maximum Storage Temperature | 125 | °C |
| Max Junction Temperature for MTTF of > 1E6 hours | 175 | °C |
| Max Power Dissipation for MTTF of > 1E6 hours | 0.41 | W |
| Minimum Operating Temperature for MTTF > 1E6 hours | -40 | °C |
| Minimum Storage Temperature | -65 | °C |
| Reference Bias Current (Ig1) | 10 | mA |
| Reference Bias Voltage (Vg1) | 6 | V |
| RF Input Power | 20 | dBm |
| θ_Jc, Junction to Case Thermal Resistance | 100 | ºC/W |
Package Information
| Parameter | Details | Rating |
|---|---|---|
| Dimensions | - | 2.0 x 1.3 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.
| Parameter | Min | Nominal | Max | Unit |
|---|---|---|---|---|
| Ta Ambient Temperature | -40 | 25 | 85 | °C |
| Power Supply DC Voltage (Vd) 1 | 3 | 5 | 6 | V |
| Power Supply DC Current (Idq) (No RF Input) | 21 | 40 | 48 | mA |
| Input Power for Saturation | - | 6 | - | dBm |
[1] It is recommended to set the bias resistor feeding Vg1 such that drain current Id=40mA. Data collected for this datasheet was measured with a single DC supply voltage as shown. Vd was connected to Vg1 through a series resistor Rbias=1kΩ. The 1kΩ value was chosen because it results in Id=40mA at Vd=5V.
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Electrical Specifications
Unless otherwise specified, electrical specifications apply at TA=+25°C, Rbias = 1kΩ and Vd = 5 V.
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Current Consumption | Vd = 5 V no RF input | - | - | - | 40 | - | mA |
| Input IP3 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | - | 14 | - | dBm |
| Input Power for Saturation | Vd = 5 V Idq = 40mA | 0.5 | 18 | - | 6 | - | dBm |
| Input Return Loss | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 12 | - | dB |
| Noise Figure | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 2 | - | dB |
| Output IP2 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | - | 29 | - | dBm |
| Output IP2 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | 19 | - | - | dBm |
| Output IP3 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | - | 26 | - | dBm |
| Output P1dB | Vd = 5 V Idq = 40mA | 0.5 | 18 | - | 16 | - | dBm |
| Output Return Loss | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 13 | - | dB |
| Reverse Isolation | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 22 | - | dB |
| Saturated Output Power | Vd = 5 V Idq = 40mA | 0.5 | 12 | - | 18 | - | dBm |
| Saturated Output Power | Vd = 5 V Idq = 40mA | 12 | 18 | - | 18 | - | dBm |
| Small Signal Gain | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | 10 | 13 | - | dB |
| Parameter | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|
| Current Consumption | Vd = 5 V no RF input | - | - | - | 40 | - | mA |
| Input IP3 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | - | 14 | - | dBm |
| Input Power for Saturation | Vd = 5 V Idq = 40mA | 0.5 | 18 | - | 6 | - | dBm |
| Input Return Loss | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 12 | - | dB |
| Noise Figure | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 2 | - | dB |
| Output IP2 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | - | 29 | - | dBm |
| Output IP2 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | 19 | - | - | dBm |
| Output IP3 | Vd = 5 V Idq = 40mA Pin = -18 dBm per tone, 1 MHz tone spacing | 0.5 | 18 | - | 26 | - | dBm |
| Output P1dB | Vd = 5 V Idq = 40mA | 0.5 | 18 | - | 16 | - | dBm |
| Output Return Loss | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 13 | - | dB |
| Reverse Isolation | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | - | 22 | - | dB |
| Saturated Output Power | Vd = 5 V Idq = 40mA | 0.5 | 12 | - | 18 | - | dBm |
| Saturated Output Power | Vd = 5 V Idq = 40mA | 12 | 18 | - | 18 | - | dBm |
| Small Signal Gain | Vd = 5 V Idq = 40mA Pin = -20 dBm | 0.5 | 18 | 10 | 13 | - | dB |
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Typical Performance Plots
Performance measured on EVB-ADM-8475P. Results are de-embedded to the pin of the part.
For plots vs bias, the Vd and Vg1 lines are supplied by a single DC supply with Rbias = 1kΩ between Vd and Vg1 pins.
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Application Circuit
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Mechanical Data
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Footprint Image
Download : Footprint Drawing
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Evaluation Board - Typical Performance Plots
Measurements are taken at the evaluation board connectors.
ADM-8475PSM
0.5 - 18 GHz High Dynamic Range Gain Block
Evaluation Board - Outline Drawing
