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參數資料
| 型號： | AD8628AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
| 中文描述： | OP-AMP, 10 uV OFFSET-MAX, 2 MHz BAND WIDTH, PDSO8 |
| 封裝： | PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數： | 15/20頁 |
| 文件大小： | 476K |
| 代理商： | AD8628AR |
AD8628/AD8629
PEAK-TO-PEAK NOISE
Because of the ping-pong action between auto-zeroing and
chopping, the peak-to-peak noise of the AD8628/AD8629 is
much lower than the competition. Figure 50 and Figure 51
show this comparison.
Rev. C | Page 15 of 20
e
p-p = 0.5
μ
V
BW = 0.1Hz TO 10Hz
TIME (1s/DIV)
V
μ
V
0
Figure 50. AD8628 Peak-to-Peak Noise
e
p-p = 2.3
μ
V
BW = 0.1Hz TO 10Hz
TIME (1s/DIV)
V
μ
V
0
Figure 51. LTC2050 Peak-to-Peak Noise
NOISE BEHAVIOR WITH FIRST-ORDER LOW-PASS
FILTER
The AD8628 was simulated as a low-pass filter and then
configured as shown in Figure 52. The behavior of the AD8628
matches the simulated data. It was verified that noise is rolled
off by first-order filtering.
470pF
OUT
100k
IN
1k
0
Figure 52. Test Circuit: First-Order Low-Pass Filter—×101 Gain
and 3 kHz Corner Frequency
FREQUENCY (Hz)
N
50
45
40
35
30
25
15
10
5
20
0
0
30
60
100
90
80
70
50
40
20
10
0
Figure 53. Simulation Transfer Function of the Test Circuit
FREQUENCY (kHz)
N
50
45
40
35
30
25
15
10
5
20
0
0
30
60
100
90
80
70
50
40
20
10
0
Figure 54. Actual Transfer Function of Test Circuit
The measured noise spectrum of the test circuit shows that
noise between 5 kHz and 45 kHz is successfully rolled off by the
first-order filter.
TOTAL INTEGRATED INPUT-REFERRED NOISE
FOR FIRST-ORDER FILTER
For a first-order filter, the total integrated noise from the
AD8628 is lower than the LTC2050.
3dB FILTER BANDWIDTH (Hz)
R
μ
V
10
1
0.1
10
100
10k
1k
0
LTC2050
AD8551
AD8628
Figure 55. 3 dB Filter Bandwidth in Hz
相關PDF資料 |
PDF描述 |
|---|---|
| AD8628ART | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Low Noise Operational Amplifier |
| AD8628ART-R2 | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
| AD8628ART-REEL7 | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
| AD8628ARZ | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
| AD8629 | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8628AR-REEL | 制造商:Analog Devices 功能描述:SP Amp Chopper Stabilization Single R-R I/O ±2.5V/5V 8-Pin SOIC N T/R |
| AD8628AR-REEL7 | 制造商:Analog Devices 功能描述:SP Amp Chopper Stabilization Single R-R I/O ±2.5V/5V 8-Pin SOIC N T/R |
| AD8628ART | 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Low Noise Operational Amplifier |
| AD8628ART-R2 | 功能描述:IC OPAMP CHOPPER R-R SOT23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR) |
| AD8628ART-REEL7 | 制造商:Analog Devices 功能描述:SP Amp Chopper Stabilization Single R-R I/O 制造商:Analog Devices 功能描述:IC OP-AMP SINGLE R/R |
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