LMH7322_0706 NSC [National Semiconductor], LMH7322_0706 Datasheet - Page 14

• Manufacturer Part Number: LMH7322_0706
• Description: Dual 700 ps High Speed Comparator with RSPECL Outputs
• Manufacturer: NSC [National Semiconductor]

www.national.com
Pin Descriptions
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
Pin
VCCOA
LEA
LEA
VEEA
VCCIA
RHYSA
INA-
INA+
RHREFA
RHREFB
INB+
INB−
RHYSB
VCCIB
VEEB
LEB
LEB
VCCOB
QB
QB
VCCOB
VCCOA
QA
QA
DAP
Name
Positive Supply Output Stage part A
Latch Enable Input
Latch Enable Input Not
Negative Supply
Positive Supply for Input
Stage
Hysteresis Resistor
Negative Input
Positive Input
Reference Voltage Hysteresis
Resistor
Reference Voltage Hysteresis
Resistor
Positive Input
Negative Input
Hysteresis Resistor
Positive Supply for Input
Stage
Negative Supply
Latch Enable Input Not
Latch Enable Input Logic
Positive Supply for Output
Stage
Inverted Output
Output
Positive Supply for Output
Stage
Positive Supply for Output
Stage
Output
Inverted Output
Central pad at the bottom of
the package
Description
part A
part A
part A
part A
part A
part A
part A
part A
part B
part B
part B
part B
part B
part B
part B
part B
part B
part B
part B
part B
part A
part A
part A
A & B
The supply pin for the output stage is independent of the supply
pin for the input pin. This allows output levels of different logic
families.
Logic ‘1’ sets the part on hold. Logic levels are RSPECL (Reduced
Swing PECL) compatible.
Logic ‘0’ sets the part on hold. Logic levels are RSPECL
compatible.
The supply pin for the negative supply is connected to the VEEB
via a string of two anti-parallel diodes (see Figure 1)
The supply pin for the input stage is independent of the supply for
the output stage.
The hysteresis voltage is determined by connecting a resistor from
this pin to RHREFA.
Input for analog voltages between 200 mV below VEEA and 2V
below VCCIA.
Input for analog voltages between 200 mV below VEEA and 2V
below VCCIA.
The hysteresis voltage is determined by connecting a resistor from
this pin to RHYSA.
The hysteresis voltage is determined by connecting a resistor from
this pin to RHYSB.
Input for analog voltages between 200 mV below VEEB and 2V
below VCCIB.
Input for analog voltages between 200 mV below VEEB and 2V
below VCCIB.
The hysteresis voltage is determined by connecting a resistor from
this pin to RHREFB.
The supply pin for the input stage is independent of the supply for
the output stage.
The supply pin for the negative supply is connected to the VEEA
via a string of two anti-parallel diodes (see Figure 1).
Logic ‘0’ sets the part on hold. Logic levels are RSPECL
compatible.
‘1’ sets the part on hold. Logic levels are RSPECL compatible.
The supply pin for the output stage is independent of the supply
pin for the input pin. This allows output levels of different logic
families.
Output levels are determined by the choice of VCCOB.
Output levels are determined by the choice of VCCOB.
See other VCCOB
See other VCCOA.
Output levels are determined by the choice of VCCOA.
Output levels are determined by the choice of VCCOA.
This pad is connected to the VEE pins and its purpose is to transfer
heat outside the part.
14
Comment