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OPA37 Datasheet(PDF) 5 Page - Texas Instruments

Part # OPA37
Description  Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS
PDF  24 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

OPA37 Datasheet(HTML) 5 Page - Texas Instruments

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OPA27, OPA37
5
SBOS135C
www.ti.com
TYPICAL CHARACTERISTICS
At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted.
INPUT OFFSET VOLTAGE WARM-UP DRIFT
Time From Power Turn-On (min)
0
+10
+5
0
–5
–10
123456
INPUT VOLTAGE NOISE vs NOISE BANDWIDTH
(0.1Hz to Indicated Frequency)
Noise Bandwidth (Hz)
100
1k
10k
100k
10
1
0.1
0.01
R = 0
S
Ω
TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY
vs SOURCE RESISTANCE
Source Resistance ( )
Ω
100
1k
10k
100
80
60
10
8
6
40
20
4
2
1
-
+
R
1
R
1
R
= 2
R1
x
SOURCE
Resistor Noise Only
1kHz
10Hz
VOLTAGE NOISE SPECTRAL DENSITY
vs SUPPLY VOLTAGE
5
4
3
2
1
0
Supply Voltage (V
)
CC
±5
±10
±15
±20
1kHz
10Hz
VOLTAGE NOISE SPECTRAL DENSITY
vs TEMPERATURE
5
4
3
2
1
–75
–50
–25
0
+25
+50
+75
+100
+125
Ambient Temperature (
°C)
10Hz
1kHz
INPUT CURRENT NOISE SPECTRAL DENSITY
10
8
6
4
2
1
0.8
0.6
0.4
0.2
0.1
10
100
1k
10k
This industry-standard equation
is inaccurate and these figures should
be used for comparison purposes only!
Current Noise Test Circuit
I
n = √(eno
)2 – (130nV)2
1M
100
Ω x
DUT
100k
Ω
500k
Ω
500k
Ω 10kΩ
e
no
Frequency (Hz)
Warning:



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