2.0-18.0 GHz GaAs MMIC
Buffer Amplifier
May 2007 - Rev 01-May-07
CMM4000-BD
App Note [1] Biasing
- As shown in the bonding diagram, this device operates using a self-biased architecture and only requires one drain
bias. Bias is nominally Vd=5V, I=115mA. Additionally there are three source resistors on chip, 13, 12 and 8.5 Ohms. One of these must be
bonded to ground. Typically 12 Ohms is bonded to ground to achieve performance as shown. Bonding to one of the other resistors or any or
all in parallel may allow additional performance adjustment.
App Note [2] Bias Arrangement
- Each DC pad (Vd) needs to have DC bypass capacitance (~100-200 pF) as close to the device as possible.
Additional DC bypass capacitance (~0.01 uF) is also recommended.
MTTF Graphs
These numbers were calculated based on accelerated life test information and thermal model analysis received from the fabricating foundry.
CMM4000-BD Vd=5.0 V, Id=110 mA
1.0E+09
1.00E+01
CMM4000-BD Vd=5.0 V, Id=110 mA
1.0E+08
MTTF (hours)
1.00E+00
1.0E+07
FITS
1.00E-01
1.0E+06
1.00E-02
1.0E+05
55
65
75
85
95
105
115
125
Backplate Temperature (deg C)
1.00E-03
55
65
75
85
95
105
115
125
Baseplate Temperature (deg C)
CMM4000-BD Vd=5.0 V, Id=110 mA
170
160
150
Tch (deg C)
140
130
120
110
100
90
55
65
75
85
95
105
115
125
Backplate Temperature (deg C)
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Page 6 of 7
Characteristic Data and Specifications are subject to change without notice.
©2007
Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
MIMIX [ MIMIX BROADBAND ]
