Specifications and information are subject to change without notice.
TriQuint Semiconductor Inc • Phone 1-503-615-9000 • FAX: 503-615-8900 • e-mail: info-sal es@tq s .co m • Web site: www.TriQuint.com Page 1 of 9 July 2010
AH420
4W High Linearity InGaP HBT Amplifier
Product Features
• 400 – 2700 MHz
• +35.7 dBm P1dB
• -49 dBc ACLR @ 26 dBm
• 14 dB Gain @ 2140 MHz
• 800 mA Quiescent Current
• +5 V Single Supply
• MTTF > 100 Years
• Lead-free/green/RoHS-compliant
12-pin 4x5mm DFN Package
Applications
• Final stage amplifiers for Repeaters
• High Power Amplifiers
• Mobile Infrastructure
• LTE / WCDMA / EDGE / CDMA
Product Description
The AH420 is a high dynamic range amplifier in a low-cost
surface mount package. The InGaP/GaAs HBT is able to
achieve high performance with -49 dBc ACLR and +35.7
dBm of compressed 1dB power, operating off of a single
+5V supply. It is housed in a lead-free/green/RoHS-
compliant 4x5mm DFN package. All devices are 100% RF
and DC tested.
The AH420 is targeted for use as a final stage amplifier in
wireless infrastructure repeaters or as driver stages for high
power amplifiers where high performance is required. In
addition, the amplifier can be used for a wide variety of
other applications within the 400 to 2700 MHz frequency
band. By operating off of a single +5V rail, other higher
voltage rails are not necessarily needed thus saving system
costs. The amplifier also has the flexibility to operate at
higher voltage levels to achieve higher compression if
needed by the system.
Functional Diagram
Function Pin No.
RFIN 3,4,5,6
RFOUT 7,8,9,10
IREF 12
VBIAS 1
NC 2,11
Specifications
Parameter Units Min Typ Max
Operational Bandwidth MHz 400 2700
Test Frequency MHz 2140
Output Channel Power dBm +26
Gain dB 13 14 16
Input Return Loss dB 12
Output Return Loss dB 7.4
ACLR (2) dBc -49
Output P1dB dBm +35.7
Output IP3 (4) dBm +46.5 +50
Quiescent Collector Current
3
mA 710 800 900
Iref mA 20
Vcc, Vbias V +5
1. Test conditions unless otherwise noted: 25ºC, +5V Vsupply, 2140 MHz, in tuned application circuit.
2. W-CDMA 3GPP Test Model 1+64 DPCH, PAR = 10.2 dB @ 0.01% Probability, 3.84 MHz BW
3. This corresponds to the quiescent current under small-signal conditions into pins 6, 7, and 8 when
the current setting resistor, R4 connected to the Iref pin, is at 82 Ω.
4. OIP3 is measured with two tones at out an output power of +27 dBm/tone separated by 1 MHz.
The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
Absolute Maximum Ratings
Parameter Rating
Storage Temperature -65 to +150 °C
Vcc, Vbias +14 V
RF Input Power, CW, 50 Ω, T=25°C Input P9dB
Reference Current, Iref 170 mA
Dissipated Power, Pmax 7 W
Max Junction Temperature, TJ
For 106 hours MTTF 158 °C
Thermal Resistance, ΘJC 10.6 °C / W
Operation of this device above any of these parameters may cause permanent damage.
Typical Performance
Parameter Units Typical
Frequency MHz 940 1960 2140
Channel Power dBm +27 +27 +26
Gain dB 16 14.1 14
Input Return Loss dB 14 19 12
Output Return Loss dB 6.4 7 7.4
ACLR (2) dBc -46.5 -48 -49
Output P1dB dBm +35.2 +35.6 +35.7
Noise Figure dB 6.6 5.3 5.6
Output IP3 (4) dBm +50 +49 +50
Quiescent Collector Current
3
mA 800
Iref mA 20
Vcc, Vbias V +5
5. The amplifier has been tested for ruggedness to be capable of handling:
10:1 VSWR @ 5Vcc, 2140MHz, +35.2dBm CW Pout, 25 °C
10:1 VSWR @ 5Vcc, 940MHz, +28.5dBm IS-95A Pout, 25 °C
10:1 VSWR @ 5Vcc, 2140MHz, +26.5dBm WCDMA Pout, 25 °C
Ordering Information
Part No. Description
AH420-EG 4W High Linearity InGaP HBT Amplifier
AH420-EPCB900 920-960 MHz Evaluation Board
AH420-EPCB1960 1930-1990 MHz Evaluation Board
AH420-EPCB2140 2110-2170 MHz Evaluation Board
Standard T/R size = 1000 pieces on a 7” reel.