United Monolithic Semiconductors CHA3093c99F-00 Datasheet

20-40GHz Medium Power Amplifier

GaAs Monolithic Microwave IC

Description

The CHA3093c is a high gain broadband four­stage monolithic medium power amplifier. It is
designed for a wide range of applications, from
military to commercial communication
systems. The backside of the chip is both RF
and DC grounded. This helps simplify the
assembly process.
A B.I.T. ( Build In Test ) monitors a DC voltage
that is representative of the microwave output
power.

The circuit is manufactured with a PM-HEMT
process, 0.15µm gate length, via holes through
the substrate, air bridges and electron beam
gate lithography.
It is available in chip form.

Main Features

■ Broadband performances : 20-40GHz

■ 20dBm output power.

■ 22dB gain

■ Very good broadband input matching

■ On chip output power level DC detector

■ Low DC power consumption, 330mA @ 3.5V

■ Chip size : 0.83 X 1.72 X 0.10 mm

Main Characteristics

Tamb. = 25°C

Parameter Min Typ Max Unit

CHA3093c

Vd1

IN

Gain & RLoss (dB)

Vg1 Vg2

Typical on wafer measurements :

30

20

10

0

-10

-20

-30

-40
15 20 25 30 35 40 45 50

S11

S22

Vg 3

Vg4

Input Rloss : solid line & output Rloss : dash line.

Vd2,3,4

OUT

Vdet

FREQ (GHz)

Fop Operating frequency range 20 40 GHz

G Small signal gain 18 20 dB

P03 Output power at 3dB gain compression 20 22 dBm

Id Bias current 330 400 mA

ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !

Ref. : DSCHA30932158 -07-June-02 1/10 Specifications subject to change without notice

United Monolithic Semiconductors S.A.S.

Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France

Tel. : [phone] - Fax : [phone]

20-40GHz Medium Power Amplifier

CHA3093c

Electrical Characteristics for Broadband Operation

Tamb = +25°C, Vd1,2,3,4 = 3.5V Id=330mA

Symbol Parameter Min Typ Max Unit

Fop Operating frequency range (1) 20 40 GHz

G Small signal gain [ 20GHz to 35GHz](1) 20 22 dB

G Small signal gain (1) 18 dB

∆G

Is Reverse isolation (1) 50 dB

P1dB Pulsed output power at 1dB gain compression (1) 18 20 dBm

P3dB Pulsed output power at 3dB gain compression (1) 20 22 dBm

IP3 3rd order intercept point 29 dBm

PAE Power added efficiency at saturation 10 %

VSWRin Input VSWR (1) 1.2:1 2.0:1

VSWRout Output VSWR (1) 2.0:1 3.0:1

NF Noise figure 8.0 10.0 dB

Vdet Detected voltage : at 25GHz @ Pout=20dBm (2)

Id Bias current (small signal) 330 400 mA

(1) These values are representative for pulsed on-wafer measurements that are made without bonding wires at the RF ports.
(2) In the case of a jig or a module CW mode operation, the typical output power may be around 2dB less.
(2) Voltage across an external 10kOhm parallel resistor connected to the voltage detector pad.

Small signal gain flatness (1) (Any 1GHz BW) ±0.5 dB

V
V

Detected voltage : at 38GHz @ Pout=20dBm (2)

0.65

0.45

Absolute Maximum Ratings (1)

Symbol Parameter Values Unit

Vds Drain bias voltage_small signal (2) 4.0 V

Ids Drain bias current_small signa l 470 mA

Vgs Gate bias voltage -2 to +0.4 V

Vdg Drain Gate voltage (Vds – Vgs) +5 V

Pin Maximum continuous input power (2)

Maximum peak input power overdrive (3)

Ta Operating temperature range -40 to +85 °C

Tstg Storage temperature range -55 to +125 °C

(1) Operation of this device above anyone of these parameters may cause permanent damage.
(2) Duration < 1s.

Ref. : DSCHA30932158 -07-June-02 2/10 Specifications subject to change without notice

+4 (@ 20GHz)

-1 (@ 40GHz)
+15

dBm
dBm

United Monolithic Semiconductors S.A.S.

Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France

Tel. : [phone] - Fax : [phone]

20-40GHz Medium Power Amplifier

/

CHA3093c

Typical Scattering Parameters ( On wafer Sij measurements )

Bias Conditions : Vd1,2,3,4 = 3.5 Volt, Vg1=Vg2,3,4 for Id total = 330 mA.

Freq

mod pha mod pha mod pha mod pha

GHz dB

2,00 -9,77 166,10 -79,63 85,41 -44,50 11,25 -0,06 -16,47
4,00 -9,97 159,94 -78,88 19,46 -45,28 64,07 -0,17 -32,94
6,00 -10,97 144,60 -63,16 -150,36 -32,41 -15,70 -0,26 -48,70

8,00 -12,23 141,58 -67,81 -92,96 -30,97 -73,10 -0,19 -66,41
10,00 -13,30 132,93 -76,00 168,10 -39,55 -81,72 -0,32 -86,37
12,00 -14,19 127,48 -69,79 162,87 -12,99 -8,19 -0,95 -109,99
14,00 -15,25 119,12 -68,09 -141,61 4,59 -92,82 -3,13 -134,29
16,00 -16,90 109,51 -56,64 151,79 14,64 166,69 -6,28 -148,92
18,00 -18,45 101,39 -77,66 -40,17 20,56 66,78 -12,44 -152,39

20,00 -18,27 99,66 -54,79 30,38 23,06 -25,87 - 11,02 -127,42
21,00 -20,55 75,06 -69,47 -61,55 23,87 -67,24 -8,60 -138,79
22,00 -20,72 49,52 -57,54 -51,49 24,20 -106,39 -7,90 -148,31
23,00 -29,56 58,15 -54,03 -168,51 23,40 -146,58 -10,21 - 167,46
24,00 -23,58 58,28 -56,11 107,75 22,98 -173,95 -10,20 -161,72
25,00 -21,33 29,56 -54,05 67,67 22,93 156,61 -10,87 -166,58
26,00 -21,32 -8,76 -62,57 -37,46 23,05 125,30 -11,82 179,69
27,00 -22,06 -29,59 -63,41 -139,56 22,56 96,27 -13,75 179,91
28,00 -22,21 -31,27 -56,43 165,63 21,93 70,69 -13,72 -176,79
29,00 -19,66 -44,67 -59,88 138,12 22,19 43,16 -13,95 168,88
30,00 -17,80 -56,40 -58,46 132,33 21,80 16,81 -15,15 167,61
31,00 -17,46 -61,68 -56,48 154,53 21,36 -6,65 -15,78 157,73
32,00 -15,16 -70,64 -52,06 105,41 21,50 -31,90 -15,57 137,58
33,00 -15,09 -83,96 -56,43 63,48 20,88 -56,82 -20,24 133,08
34,00 -14,57 -89,19 -59,91 89,24 20,82 -81,12 -19,36 132,46
35,00 -13,80 -92,45 -54,72 94,43 20,70 -104,79 -18,36 101,23
36,00 -13,55 -97,98 -54,97 59,43 20,47 -129,10 -20,65 80,50
37,00 -12,80 -102,27 -54,75 93,32 20,11 -154,27 -17,69 61,37
38,00 -12,55 -108,34 -54,06 58,24 19,72 -177,11 -18,18 37,45
39,00 -12,64 -110,41 -53,05 50,25 19,84 159,83 -15,31 24,91
40,00 -12,53 -108,87 -50,99 30,11 19,49 133,90 -13,49 5,75

41,00 -11,23 -110,01 -52,73 3,78 19,40 108,31 -11,73 -9,23
42,00 -10,73 -118,61 -56,04 22,66 18,88 81,37 -11,60 -21,67
43,00 -10,79 -124,01 -56,86 -6,86 18,38 56,83 -10,29 -23,61
44,00 -10,93 -121,39 -52,92 -31,58 18,36 32,20 -8,52 -33,55
45,00 -10,92 -125,62 -52,23 -85,31 18,33 -0,36 -7,30 -45,47
46,00 -11,37 -121,74 -60,67 -166,71 17,03 -37,26 -7,39 -51,37
48,00 -8,41 -103,89 -53,21 -121,20 13,67 -104,46 -4,69 -68,35
50,00 -5,96 -119,91 -58,10 116,39 6,60 -158,83 -3,75 -85,06
52,00 -3,89 -131,50 -52,69 160,04 -0,07 156,43 -3,23 -99,24
54,00 -2,88 -146,98 -60,21 15,97 -7,50 118,68 -2,74 -112,94
56,00 -2,21 -160,52 -52,63 159,63 -16,29 95,16 -2,57 -124,78
58,00 -2,02 -173,49 -55,84 -175,77 -29,86 112,18 -2,56 -135,15
60,00 -1,87 175,37 -49,76 95,59 -23,82 170,18 -2,53 -145,16

S11 S12 S21 S22

°dB/°dB/°dB/°

Ref. : DSCHA30932158 -07-June-02 3/10 Specifications subject to change without notice

United Monolithic Semiconductors S.A.S.

Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France

Tel. : [phone] - Fax : [phone]