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MAX2612 –MAX2616
40MHz to 4GHz Linear Broadband Amplifiers
Pin Configuration
TOP VIEW
GND
8
RFOUT
7
GND
6
V CC
5
MAX2612–MAX2616
+
EP
1
2
3
4
GND
RFIN
GND EN/RBIAS
TDFN
Pin Description
PIN
1, 3, 6, 8
2
4
5
7
—
NAME
GND
RFIN
EN/RBIAS
V CC
RFOUT
EP
FUNCTION
Ground. Connect to PCB ground plane.
RF Input. Connect to an RF source through a 0.01 F F DC-blocking capacitor. Internally matched to 50 I .
Enable (MAX2612/MAX2613/MAX2614/MAX2616). Leave unconnected for normal operation or logic-
low for disable mode operation. For applications that use the disable mode, it is recommended that the
logic-high signal be derived from a high-impedance source such as an unterminated open-collector
output or three-state (high-Z) output. Logic-low should be a low-impedance source or a switch to
ground capable of sinking 10 F A.
RBIAS (MAX2615). Connect to a 21.5k I bias resistor to ground. The value can be adjusted to trade off
supply current for OIP3. See the Applications Information section for further detail.
DC Supply Input. Place 470pF and 10nF decoupling capacitors as close to pin as possible. Also place
a 10 F F bulk capacitor on V CC ; this must be a tantalum capacitor with ESR > 2nF and can be placed
further away.
RF Output and DC Feed. Connect to DC supply through a 220nH inductor. Connect to output load
through a 0.01 F F DC-blocking capacitor.
Exposed Pad. Connect to PCB ground plane by a 3 x 3 array of vias. Connect to ground lead
(1, 3, 6, 8) land patterns and to layer 1 ground plane with thermal relief traces.
Maxim Integrated
8
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