HEDS-9710 HP [Agilent(Hewlett-Packard)], HEDS-9710 Datasheet - Page 5

• Manufacturer Part Number: HEDS-9710
• Description: 200 lpi Analog Output Small Optical Encoder Modules
• Manufacturer: HP [Agilent(Hewlett-Packard)]

5
Analog Encoder Interface Circuit
Ordering Information
HEDS-971
Lead Configurations
0 – straight leads
1 – bent leads
I
I
V
A-IN
B-IN
REF
= 1.4 V ± 0.2 V (DC)
Option
V
V
REF
REF
I+
I+
Resolutions
R – 200 lpi
+
–
+
–
R1
R1
C
C
V
V
A
B
Bracket Options
50
51
The circuit shown can be used to
convert the current output to a
voltage. Resistor value, R1, and
Capacitor, C, are specified to
attain required gain and low-pass
filtering, which are application
specific. The gain is chosen to
attain maximum output swing
and not clamp the op-amp. V
should be set to 1.4 V
A 0.1 F bypass capacitor
(decoupling capacitor) is recom-
mended to be placed within 1 cm
of the encoder for optimal power
supply noise rejection. Outputs
are high impedance (typical 1
M ohm) and susceptible to EMI.
0.2 V.
REF