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7 - 12

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HMC1061LC5

v01.0613

DC - 18 GHz, ULTRA-WIDEBAND, DUAL RANK

4 GS/s TRACK-AND-HOLD AMPLIFIER

Pin Number

Function

Description

Interface Schematic

20, 21

OUTp, OUTn

Differential output (positive and negative)

DC-coupled, ground refernced output with nominal

common mode level = 0 V

Output impedance = 50 ohms

Intended to be DC or AC coupled to 50 ohm load

impedance

24, 26, 28,

30, 32,

Package

Base

Vee

Vee supply

Nominal voltage = -4.75 V (Vee+VeeCLK1+VeeCLK2),

current = -357 mA nominal

23

VccOB

Vcc supply for the 50 ohm output buffer

Nominal voltage = +2 V, current = 74 mA nominal

Can be biased with +1 <Vcc_ob <+3 V to adjust the output

common mode voltage to an exact desired value between

-0.5 and 0.5 V. Output common mode voltage adjustment

has a sensitivity of apporximately Vocm (V) ~ 0.5 (Vcc_ob

- 2)

25,

29

VccOF2

VccOF1

Vcc supplies for front end of the output buffer circuitry

VccOF2 is for the output of the IC, while VccOF1 is for the

interstage buffer between the 1st and 2nd rank T/Hs

Nominal voltage = +2 V (VccOF1+VccOF2), current =

47 mA nominal

27,

31

VccTH2

VccTH1

VccTH2 supply for 2nd rank T/H core circuitry and VccTH1

is the supply fo the 1st rank T/H

Nominal voltage = + 2 V (VccTH1+VccTH2), current =

140 mA nominal