HMC676LC3C Datasheet, PDF (7/10 Pages) Hittite Microwave Corporation – 10 GHz LATCHED COMPARATOR WITH RSECL OUTPUT STAGE

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HMC676LC3C
10 GHz LATCHED COMPARATOR
WITH RSECL OUTPUT STAGE
Pin Descriptions
Pin Number
1
2
3
4
Function
VTP
INP
INN
VTN
5, 16
Vcci
Description
Termination resistor return pin for Vp Input.
Non-Inverting analog input
Inverting analog input
Termination resistor return pin for Vn input
Positive supply voltage input stage.
6
7
8
9, 12
10
11
14
13
LE
LE
N/C
Vcco
Q
Q
HYS
Vee
Latch enable bar input pin, inverting side.
Refer to the Operational Description for more details.
Latch enable input pin, non-inverting side.
Refer to the Operational Description for more details.
Pin is not connected inside the package.
Connect package pin to GND for improved noise.
Positive supply voltage for the output stage.
Inverting output. Q bar is at logic low if the analog voltage
at the non-inverting input, INP, is greater than the analog
voltage at the inverting input, INN, provided that the
comparator is in compare mode. Refer to the Operational
Description for more details.
Non-inverting output. Q is at logic high if the analog voltage
at the non-inverting input, INP, is greater than the analog
voltage at the inverting input, INN, provided that the
comparator is in compare mode. Refer to the Operational
Description for more details.
Hysteresis Control pin. This pin should be left disconnected
for zero hysteresis. Connect to Vee with a resistor to add
the desired amount of hysteresis. Refer to hysteresis graph
to determine the correct sizing of Rhys hysteresis control
resistor.
Negative power supply, -3 V.
15
RTN
Return for ESD protection.
Package Base
Exposed paddle must be connected to Vee.
Interface Schematic
1-7
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