參數(shù)資料
型號(hào)： AD8510
廠商： Analog Devices, Inc.
英文描述： Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Operational Amplifiers
中文描述： 精密，非常低噪聲，低輸入偏置電流，高帶寬結(jié)型場(chǎng)效應(yīng)管運(yùn)算放大器
文件頁(yè)數(shù)： 15/20頁(yè)
文件大小： 497K
代理商： AD8510
AD8510/AD8512/AD8513
Rev. E | Page 15 of 20
TIME (1
μ
s/DIV)
V
V
SY
= ±15V
C
L
= 500pF
R
L
=10k
0
Figure 46. Capacitive Load Drive without Snubber
When the snubber circuit is used, the overshoot is reduced from
55% to less than 3% with the same load capacitance. Ringing is
virtually eliminated, as shown in Figure 47.
TIME (1
μ
s/DIV)
V
V
SY
= ±15V
R
L
=10k
C
L
= 500pF
R
S
=100
C
S
=1nF
0
Figure 47. Capacitive Load with Snubber Network
Optimum values for R
S
and C
S
depend on the load capacitance
and input stray capacitance and are determined empirically.
Table 5 shows a few values that can be used as starting points.
Table 5. Optimum Values for Capacitive Loads
C
LOAD
R
S
()
500 pF
100
2 nF
70
5 nF
60
C
S
1 nF
100 pF
300 pF
OPEN-LOOP GAIN AND PHASE RESPONSE
In addition to their impressive low noise, low offset voltage, and
offset current, the AD8510/AD8512/AD8513 have excellent
loop gain and phase response even when driving large resistive
and capacitive loads. They were compared to the OPA2132
under the same conditions. With a 2.5 k load at the output, the
AD8510/AD8512/AD8513 have more than 8 MHz of band-
width and a phase margin of more than 52°.
The OPA2132, on the other hand, has only 4.5 MHz of band-
width and 28° of phase margin under the same test conditions.
Even with a 1 nF capacitive load in parallel with the 2 k load
at the output, the AD8510/AD8512/AD8513 show much better
response than the OPA2132, whose phase margin is degraded to
less than 0, indicating oscillation.
FREQUENCY (Hz)
G
10k
–30
–20
–10
100k
0
10
30
1M
10M
50M
40
50
20
60
70
–135
–90
–45
0
45
90
135
190
225
270
315
P
V
SY
= ±15
V
R
L
= 2.5k
C
L
= 0
0
Figure 48. Frequency Response of the AD8510/AD8512/AD8513
FREQUENCY (Hz)
G
10k
–30
–20
–10
100k
0
10
30
1M
10M
50M
40
50
20
60
70
–135
–90
–45
0
45
90
135
190
225
270
315
P
V
SY
= ±15
V
R
L
= 2.5k
C
L
= 0
0
Figure 49. Frequency Response of the OPA2132
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8510_07 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Operational Amplifiers
AD8510AR 功能描述:IC OPAMP JFET 8MHZ PREC LN 8SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿(mǎn)擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:680 (CN2011-ZH PDF) 其它名稱(chēng):MCP6L04T-E/SLCT
AD8510ARM-R2 功能描述:IC OPAMP JFET 8MHZ PREC LN 8MSOP RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類(lèi)型:通用 電路數(shù):1 輸出類(lèi)型:滿(mǎn)擺幅 轉(zhuǎn)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(lèi)型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR)
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