參數(shù)資料
型號(hào): OPA37
英文描述: Ultra-Low Noise Precision OPERATIONAL AMPLIFIERS
中文描述: 超低噪聲精密運(yùn)算放大器
文件頁(yè)數(shù): 10/13頁(yè)
文件大?。?/td> 216K
代理商: OPA37
10
OPA27, 37
10k
0.5μV
0.5μV
0.5μV
0.5μV
5μV
A. 741 noise with circuit well-shielded from air
currents and RFI. (Note scale change.)
B. OP-07AH with circuit well-shielded from air
currents and RFI.
C. OPA27AJ with circuit well-shielded from air
currents and RFI. (Represents ultimate
OPA27 performance potential.)
D. OPA27 with circuit unshielded and exposed
to normal lab bench-top air currents.
(External thermoelectric potentials far
exceed OPA27 noise.)
E. OPA27 with heat sink and shield which
protects input leads from air currents.
Conditions same as (D).
Offset
G =1k
10Hz Low-
Pass Filter
Chart
Recorder
10mV/mm
5mm/s
DUT
Total Gain = 10
6
10
FIGURE 11. Low Frequency Noise Comparison.
FIGURE 10. NAB Tape Head Preamplifier.
OPA37
Output
316k
4.99k
G
50dB at 1kHz.
Metal film resistors.
Film capacitors.
R
and C
per head
manufacturer’s
recommendations.
100
2
3
6
0.01μF
1μF
20k
R
L
Magnetic Tape Head
C
L
FIGURE 9. High Slew Rate Unity-Gain Inverting Amplifier.
OPA37
Output
Input
1k
1k
2
3
6
500pF
250
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