MCP617-I/SN Microchip Technology, MCP617-I/SN Datasheet - Page 19
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MCP617-I/SN
Manufacturer Part Number
MCP617-I/SN
Description
IC OPAMP 2.3V DUAL R-R 8SOIC
Manufacturer
Microchip Technology
Specifications of MCP617-I/SN
Slew Rate
0.08 V/µs
Operating Temperature
-40°C ~ 85°C
Amplifier Type
General Purpose
Number Of Circuits
2
Output Type
Rail-to-Rail
Gain Bandwidth Product
190kHz
Current - Input Bias
15nA
Voltage - Input Offset
150µV
Current - Supply
19µA
Current - Output / Channel
17mA
Voltage - Supply, Single/dual (±)
2.3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Op Amp Type
General Purpose
No. Of Amplifiers
2
Bandwidth
190kHz
Supply Voltage Range
2.3V To 5.5V
Amplifier Case Style
SOIC
No. Of Pins
8
Number Of Channels
2
Voltage Gain Db
120 dB
Common Mode Rejection Ratio (min)
80 dB
Input Offset Voltage
0.15 mV
Operating Supply Voltage
3 V, 5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP617-I/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
4.9.3
A classic, three-op amp instrumentation amplifier is
illustrated in
provide differential signal gain and a common mode
gain of +1. The output op amp is a difference amplifier,
which converts its input signal from differential to a
single-ended output; it rejects common mode signals at
its input. The gain of this circuit is simply adjusted with
one resistor (R
typically referenced to mid-supply (V
supply applications.
FIGURE 4-11:
Instrumentation Amplifier.
© 2008 Microchip Technology Inc.
V
V
2
1
V OUT
THREE OP AMP
INSTRUMENTATION AMPLIFIER
R
Figure
=
G
R
R
G
MCP617
MCP617
(
). The reference voltage (V
2
2
V 1 V 2
½
½
–
4-11. The two-input op amps
Three-Op Amp
) 1
R
R
⎛
⎜
⎝
3
3
+
2R
---------
R G
2
⎞ R
⎟
⎠
R
R
⎛
⎜
⎝
MCP616
----- -
R
4
4
4
3
⎞
⎟
⎠
DD
+
V REF
/2) in single-
V
V
OUT
REF
REF
) is
4.9.4
In
a high gain to the input signal (V
offset voltage makes this an accurate circuit.
The MCP606 is configured as a unity-gain buffer. It
isolates the MCP616’s output from the load, increasing
the high gain stage’s precision. Since the MCP606 has
a higher output current, and the two amplifiers are
housed in separate packages, there is minimal change
in the MCP616’s offset voltage due to loading effect.
FIGURE 4-12:
Load Isolation.
Figure
V
IN
4-12, the MCP616 op amp, R
PRECISION GAIN WITH GOOD
LOAD ISOLATION
R
1
V OUT
MCP616/7/8/9
R
=
MCP616
Precision Gain with Good
2
V
IN
(
1
+
R
IN
2
). The MCP616’s low
⁄
R
MCP606
DS21613C-page 19
1
)
1
and R
V
2
OUT
provide