HEDS-9740 HP [Agilent(Hewlett-Packard)], HEDS-9740 Datasheet - Page 3

• Manufacturer Part Number: HEDS-9740
• Description: 180, 300, 360 LPI Small Optical Encoder Modules
• Manufacturer: HP [Agilent(Hewlett-Packard)]

3
Recommended Operating Conditions
Electrical Characteristics over Recommended Operating Range, Typical at T
Encoding Characteristics
Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances.
These characteristics do not include codewheel/codestrip contribution. The Typical Values are averages over the full
rotation of the codewheel.
Parameter
Temperature
Supply Voltage
Load Capacitance
Pullup Resistor
Count Frequency
Angular Misalignment E
Parameter
Supply Current
High Level Output Voltage
Low Level Output Voltage
Rise Time
Fall Time
Parameter
Pulse Width Error
Logic State Width Error
Phase Error
Symbol
T
V
C
R
A
CC
L
L
Symbol
I
V
V
t
t
Min.
–40
4.5
–2.0
CC
r
f
OH
OL
Symbol
P
S
Typ.
5.0
none
0
Min.
12
2.4
Typical
5
3
2
Max.
85
5.5
100
40
+2.0
Typ.
21
70
45
Units
V
pF
kHz
deg.
C
Max.
40
0.4
A
Maximum
40
40
15
= 25˚C
Notes
Ripple < 100 mVp-p. Recommended
one bypass capacitor (1 F)
between V
15 cm from the encoder.
Recommended no pullup. Device
has integrated 2.5 k on outputs.
(Velocity (rpm) x N) / 60
Mounting considerations.
Units
mA
V
V
ns
ns
CC
and GND less than
Units
e
e
e
Notes
I
I
C
R
OH
OL
L
L
= 25 pF
= (NO pullup)
= 3.2 mA
= –200 A