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LT1797CS5 Datasheet(PDF) 10 Page - Linear Technology

Part # LT1797CS5
Description  10MHz, Rail-to-Rail Input and Output Op Amp in SOT-23
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1797CS5 Datasheet(HTML) 10 Page - Linear Technology

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10
LT1797
TYPICAL APPLICATIO S
Single Supply Hi-Gain 80kHz Photodiode Amplifier
Ultra-Low Noise,
±5V Supply, Rail-to-Rail Output Amplifier
–
+
LT1797
3V
3V
R2
1k
R4
1k
R5
100k
R6
330
Ω
R3
10k
R1
100k
C1
0.1
µF
C2
0.1
µF
C3
1000pF
CP*
1797 TA02
*CP = SUM OF PHOTODIODE CAPACITANCE, PARASITIC LAYOUT
CAPACITANCE AND LT1797 INPUT CAPACITANCE
≅10pF.
TRANSIMPEDANCE GAIN: AZ = 10MΩ.
R6, C3 LIMIT THE NOISE BANDWIDTH TO 500kHz.
OUTPUT NOISE
≅1.8mVRMS.
R1, CP AND LT1797 GBW SET UPPER LIMIT ON BANDWIDTH.
R4, C2 SET LOWER 1.6kHz LIMIT ON GAIN OF 101.
PHOTODIODE
SFH213FA
–
+
–
+
R1
10k
R5
1k
R3
4.99k
R2
4.99k
–5V
–5V
5V
5V
LT1028
LT1797
IN
OUT
C1
2200pF
R4
10
Ω
1797 TA03
TOTAL INPUT VOLTAGE NOISE
≅ 0.94nV/√Hz
(INCLUDING 10
Ω RESISTOR)
BANDWIDTH
≅ 40kHz
AV = 500



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