Datasheet

MAX2612–MAX2616
40MHz to 4GHz Linear Broadband Amplifiers
8Maxim Integrated
Pin Description
Pin Configuration
PIN NAME FUNCTION
1, 3, 6, 8 GND Ground. Connect to PCB ground plane.
2 RFIN RF Input. Connect to an RF source through a 0.01FF DC-blocking capacitor. Internally matched to 50I.
4 EN/RBIAS
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 10FA.
RBIAS (MAX2615). Connect to a 21.5kI bias resistor to ground. The value can be adjusted to trade off
supply current for OIP3. See the Applications Information section for further detail.
5 VCC
DC Supply Input. Place 470pF and 10nF decoupling capacitors as close to pin as possible. Also place
a 10FF bulk capacitor on VCC; this must be a tantalum capacitor with ESR > 2Ω and can be placed
further away.
7 RFOUT
RF Output and DC Feed. Connect to DC supply through a 220nH inductor. Connect to output load
through a 0.01FF DC-blocking capacitor.
— EP
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.
1
+
3
EP
4
865
GND GND V
CC
MAX2612–MAX2616
2
7
RFOUT
GND GND
EN/RBIAS
RFIN
TDFN
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