MCP6XXXEV-AMP4 Microchip Technology, MCP6XXXEV-AMP4 Datasheet - Page 14

• Manufacturer Part Number: MCP6XXXEV-AMP4
• Description: BOARD AMPLIFIER EVAL 4 MCP6XXX
• Manufacturer: Microchip Technology

Specifications of MCP6XXXEV-AMP4

• Channels Per Ic: 1 - Single
• Amplifier Type: General Purpose
• Board Type: Partially Populated
• Utilized Ic / Part: 8-DIP Package
• Processor To Be Evaluated: MCP6xxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Output Type: -
• Current - Output / Channel: -
• Voltage - Supply, Single/dual (±): -
• -3db Bandwidth: -
• Slew Rate: -
• Current - Supply (main Ic): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS51681A-page 10
2.3.2
• It integrates and inverts a voltage with an integrating frequency
• Figure 2-5 shows the circuit diagram for the inverting integrator block.
FIGURE 2-5:
Table 2-1 shows the jumper positions and the corresponding effects
TABLE 2-1:
Table 2-2 shows the integrator control strategies
TABLE 2-2:
Note 1:
Integrator Control
(rad/s). Additional components control output clipping (wind-up) and initialization
of the integrating capacitor (C
C
JP
Jumper
Feedback Loop
Note 1:
Reset Switch
U1
JP
JP
3
Stand Alone
, JP
Strategy
2:
= 0.1 uF, R
1
2
2:
4
The circuit shown uses a non-inverting comparator to close the feedback loop.
The reset switch (MOSFET) in the circuit is controlled by a non-inverting
comparator.
Inverting Integrator
Adding R
Adding R
Position
(2)
JUMPER POSITIONS AND EFFECTS
INTEGRATOR CONTROL STRATEGY
(1)
V
4
1
2
1
2
3
1
2
= R
CN
V
V
IN
R
Inverting Integrator Block.
T
5
2
3
JP1
= 100.0Ω, M
1
2
2
1
2
to avoid the integrator output clipping at DC.
to minimize the output error due to the input bias current
Set the Input Reference (V
Set the Input Reference (V
Drive Integrator with Comparator
Ground Integrator’s Resistor (contstant input current)
Drive Integrator with External Source
Ground (de-activate) Integrator’s Reset Switch (M
Drive Integrator’s Reset Switch (M
JP3
Jumper Positions
# 1
# 2
R
JP2
R
1
1
1
2
3
3
3
1
100Ω
R5
). Refer to Figure 2-1.
JP3
1
1
1
2
1
1
is N-MOSFET, R
M
1
V
DD
JP4
C
R
1
1
2
1
1
C
U1
1
2
U1
JP4
# 1
# 2
REF
REF
VCMP (internal)
GND (internal)
VINX
Integrator’s Input
100Ω
Inverting Integrator
R
Effect
) to 0.5V
)) to 0.1V
4
3
Voltage
1
= R
) with Comparator
© 2007 Microchip Technology Inc.
1
DD
//R
DD
2
V
ω
OUT
=1/R
open
open
>> R1
1
R2 (Integrator)
)
1
C
1