Design DocumentAnalog

EVAL-ADL8140 Evaluation Board User Guide for ADL8140 Low Noise Amplifier

User guide for evaluating the ADL8140 GaAs pHEMT MMIC Low Noise Amplifier (10 GHz to 18 GHz) using the ADL8140-EVALZ 4-layer PCB.

View design document

Overview

The ADL8140-EVALZ user guide provides technical details for evaluating the ADL8140, a GaAs, pHEMT, MMIC low noise amplifier operating between 10 GHz and 18 GHz. The evaluation board is a 4-layer PCB constructed from Rogers 4003C and Isola 370HR materials with a nominal thickness of 62 mils. It features end-launch 2.9 mm RF connectors and 50 Ohm characteristic impedance traces. The document includes a through calibration path for measuring board trace losses, recommended bias sequencing, board schematics, assembly drawings, and a full bill of materials. Operational requirements include a 2 V, 100 mA power supply, with recommended bias settings of VDD = 1.5 V and IDQ = 35 mA.

Use Cases

RF amplifier performance evaluation
MMIC prototyping and testing
X-band and Ku-band signal chain development
RF and microwave system characterization

Topics

ADL8140

ADL8140-EVALZ

Low Noise Amplifier

LNA

GaAs pHEMT MMIC

10 GHz to 18 GHz

Evaluation Board

Rogers 4003C

RF Amplifier

Analog Devices

Referenced Parts

C0402C101J5GACTU

Kemet

100 pF ceramic capacitor, 50 V, 5%, C0G, 0402, extreme low equivalent series resistance (ESR)

5015

Keystone Electronics

Connector, printed circuit boards (PCBs), surface-mounted technology (SMT) test points

ERJ-2GE0R00X

Panasonic

Resistor SMD, 0 Ω jumper, 1/10 W, 0402 (do not install (DNI))

ERJ-2RKF5620X

Panasonic

Resistor SMD, 562 Ω, 1%, 1/10 W, 0402

CL05B104KO5NNNC

Samsung

0.1 μF ceramic capacitor, 16 V, 10%, X7R, 0402

C0402C101J5GACTU

Kemet

Kemet C0402C101J5GACTU

ERJ-2GE0R00X

Panasonic

R1 Resistor SMD, 0 Ω jumper, 1/10 W, 0402 (do not install (DNI)) Panasonic ERJ-2GE0R00X

ERJ-2RKF5620X

Panasonic

R2 Resistor SMD, 562 Ω, 1%, 1/10 W, 0402 Panasonic ERJ-2RKF5620X

CL05B104KO5NNNC

Samsung

C3 0.1 μF ceramic capacitor, 16 V, 10%, X7R, 0402 Samsung CL05B104KO5NNNC

ADL8140ACPZN

Analog Devices, Inc.

10 GHz to 18 GHz Low Noise Amplifier

25-146-1000-92

SRI Connector Gage Co.

Connector PCBs, 2.9 mm coax for frequency test measurements, 50 Ω

25-146-1000-92

SRI Connector Gage Co.

Connector PCBs, 2.9 mm coax for frequency test measurements, 50 Ω, (do not install (DNI))

C0402C101J5GACTU	Kemet	100 pF ceramic capacitor, 50 V, 5%, C0G, 0402, extreme low equivalent series resistance (ESR)
5015	Keystone Electronics	Connector, printed circuit boards (PCBs), surface-mounted technology (SMT) test points
ERJ-2GE0R00X	Panasonic	Resistor SMD, 0 Ω jumper, 1/10 W, 0402 (do not install (DNI))
ERJ-2RKF5620X	Panasonic	Resistor SMD, 562 Ω, 1%, 1/10 W, 0402
CL05B104KO5NNNC	Samsung	0.1 μF ceramic capacitor, 16 V, 10%, X7R, 0402
C0402C101J5GACTU	Kemet	Kemet C0402C101J5GACTU
ERJ-2GE0R00X	Panasonic	R1 Resistor SMD, 0 Ω jumper, 1/10 W, 0402 (do not install (DNI)) Panasonic ERJ-2GE0R00X
ERJ-2RKF5620X	Panasonic	R2 Resistor SMD, 562 Ω, 1%, 1/10 W, 0402 Panasonic ERJ-2RKF5620X
CL05B104KO5NNNC	Samsung	C3 0.1 μF ceramic capacitor, 16 V, 10%, X7R, 0402 Samsung CL05B104KO5NNNC
ADL8140ACPZN	Analog Devices, Inc.	10 GHz to 18 GHz Low Noise Amplifier
25-146-1000-92	SRI Connector Gage Co.	Connector PCBs, 2.9 mm coax for frequency test measurements, 50 Ω
25-146-1000-92	SRI Connector Gage Co.	Connector PCBs, 2.9 mm coax for frequency test measurements, 50 Ω, (do not install (DNI))