LT1800IS8 Linear Technology, LT1800IS8 Datasheet - Page 15
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LT1800IS8
Manufacturer Part Number
LT1800IS8
Description
IC OP-AMP R-R IN/OUT LOPWR 8SOIC
Manufacturer
Linear Technology
Datasheet
1.LT1800CS5TRMPBF.pdf
(18 pages)
Specifications of LT1800IS8
Amplifier Type
General Purpose
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
23 V/µs
Gain Bandwidth Product
70MHz
Current - Input Bias
400nA
Voltage - Input Offset
700µV
Current - Supply
1.8mA
Current - Output / Channel
50mA
Voltage - Supply, Single/dual (±)
2.3 V ~ 12.6 V, ±1.15 V ~ 6.3 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
-3db Bandwidth
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT1800IS8
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1800IS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1800IS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1800IS8#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
TYPICAL APPLICATIONS
Single 3V Supply, 1MHz, 4th Order Butterworth Filter
The circuit shown in Figure 4 makes use of the low voltage
operation and the wide bandwidth of the LT1800 to create
a DC accurate 1MHz 4th order lowpass fi lter powered from
a 3V supply. The amplifi ers are confi gured in the inverting
mode for the lowest distortion and the output can swing
V
V
S
IN
/2
909Ω
909Ω
2.67k
220pF
Figure 4. 3V, 1MHz, 4th Order Butterworth Filter
–100
–120
–20
–40
–60
–80
Figure 5. Frequency Response of Filter
0
47pF
1k
–
+
LT1800
10k
FREQUENCY (Hz)
100k
1.1k
rail-to-rail for maximum dynamic range. Figure 5 displays
the frequency response of the fi lter. Stopband attenuation
is greater than 100dB at 50MHz. With a 2.25V
input signal, the fi lter has harmonic distortion products
of less than –85dBc. Worst-case output offset voltage is
less than 6mV.
1M
1.1k
2.21k
470pF
10M
1800 F05
100M
22pF
–
+
LT1800
3V
1800 F04
V
OUT
LT1800
P-P
, 250kHz
15
1800fa