LMC6494BEM National Semiconductor, LMC6494BEM Datasheet - Page 16

• Manufacturer Part Number: LMC6494BEM
• Description: IC OP AMP QUAD CMOS R-R 14-SOIC
• Manufacturer: National Semiconductor

Specifications of LMC6494BEM

• Amplifier Type: General Purpose
• Number Of Circuits: 4
• Output Type: Rail-to-Rail
• Slew Rate: 1.3 V/µs
• Gain Bandwidth Product: 1.5MHz
• Current - Input Bias: 0.15pA
• Voltage - Input Offset: 110µV
• Current - Supply: 2.6mA
• Current - Output / Channel: 30mA
• Voltage - Supply, Single/dual (±): 2.5 V ~ 15.5 V, ±1.25 V ~ 7.75 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• -3db Bandwidth: -
• Other names: *LMC6494BEM

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Application Circuits
Where: V
(V
For
(CMRR depends on this resistor ratio match)
As shown: V
1
+ V
DC Summing Amplifier (V
2
≥ (V
0
= V
High Input Z, DC Differential Amplifier
O
3
1
= 2(V
+ V
+ V
4
Photo Voltaic-Cell Amplifier
) to keep V
2
2
− V
− V
3
1
)
– V
4
0
>
0V
DC
IN
≥ 0V
DC
and V
O
01204918
≥ V
01204920
01204919
DC
16
If R1 = R5, R3 = R6, and R4 = R7; then
∴
This low-pass filter circuit can be used as an anti-aliasing
filter with the same supply as the A/D converter. Filter de-
signs can also take advantage of the LMC6492/4 ultra-low
input current. The ultra-low input current yields negligible
offset error even when large value resistors are used. This in
turn allows the use of smaller valued capacitors which take
less board space and cost less.
Dielectric absorption and leakage is minimized by using a
polystyrene or polypropylene hold capacitor. The droop rate
is primarily determined by the value of C
current. Select low-leakage current diodes to minimize
drooping.
A
V
Low Voltage Peak Detector with Rail-to-Rail Peak
≈ 100 for circuit shown (R
Rail-to-Rail Single Supply Low Pass Filter
Instrumentation Amplifier
Capture Range
2
= 9.3k).
H
and diode leakage
01204922
01204921
01204923