參數(shù)資料
型號： AD8671ARMZ
廠商： ANALOG DEVICES INC
元件分類： 運(yùn)算放大器
英文描述： OP-AMP, 125 uV OFFSET-MAX, 10 MHz BAND WIDTH, PDSO8
封裝： ROHS COMPLIANT, MO-187AA, MSOP-8
文件頁數(shù)： 5/20頁
文件大?。?/td> 370K
代理商： AD8671ARMZ
AD8671/AD8672/AD8674
Rev. D | Page 13 of
20
03718-B
-036
VSY = ±15V
RL = 2kΩ
CL = 1nF
VIN = 100mV
AV = +1
CH2 +OVER
39.80%
CH2 –OVER
39.80%
TIME (10
μs/DIV)
V
O
L
T
A
G
E
(
5
0
m
V/
D
IV)
TOTAL HARMONIC DISTORTION (THD) AND NOISE
The AD8671/AD8672/AD8674 exhibit low total harmonic
distortion (THD) over the entire audio frequency range. This
makes them suitable for applications with high closed-loop
gains, including audio applications. Figure 35 shows
approximately 0.0006% of THD + N in a positive unity gain, the
worst-case configuration for distortion.
Hz
100
1k
10k
P
E
RCE
NTAGE
LT1007
0.0001
0.0002
0.0005
0.0010
0.0020
0.0050
0.0100
0.0200
0.0500
0.1000
50
20
500
200
5k
2k
AD8671
20k
03718-B
-035
VS = ±5V
VIN = 2.5V
RL = 600Ω
Figure 36. AD8671 Capacitive Load Drive
500
Ω
RF
VCC
220pF
CF
VIN
VEE
RG
500
Ω
10
Ω
RS
1nF
CL
03718-B
-037
2k
Ω
RL
Figure 35. Total Harmonic Distortion and Noise
Figure 37. Recommended Capacitive Load Circuit
DRIVING CAPACITIVE LOADS
The AD8671/AD8672/AD8674 can drive large capacitive loads
without causing instability. However, when configured in unity
gain, driving very large loads can cause unwanted ringing or
instability.
03718-B
-038
VSY = ±15V
RL = 2kΩ
CL = 1nF
CF = 220pF
VIN = 100mV
AV = +2
CH2 +OVER
5.051%
CH2 –OVER
6.061%
TIME (10
μs/DIV)
VO
L
T
A
G
E
(
1
0
m
V/
D
IV)
Figure 36 shows the output of the AD8671 with a capacitive
load of 1 nF. If heavier loads are used in low closed-loop gain or
unity-gain configurations, it is recommended to use external
compensation as shown in the circuit in Figure 37. This
technique reduces the overshoot and prevents the op amp from
oscillation. The trade-off of this circuit is a reduction in output
swing. However, a great added benefit stems from the fact that
the input signal and the op amp’s noise are filtered, and thus the
overall output noise is kept to a minimum.
Figure 38. Compensated Load Drive
The output response of the circuit is shown in Figure 38.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8671ARMZ 制造商:Analog Devices 功能描述:IC, OP-AMP, 10MHZ, 4V/ us, MSOP-8
AD8671ARMZ-R2 功能描述:IC OPAMP GP 10MHZ PREC LN 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 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)
AD8671ARMZ-REEL 功能描述:IC OPAMP GP 10MHZ PREC LN 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓(xùn)模塊:Differential Circuit Design Techniques for Communication Applications 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT
AD8671AR-REEL 功能描述:IC OPAMP GP 10MHZ PREC LN 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 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)
AD8671AR-REEL7 功能描述:IC OPAMP GP 10MHZ PREC LN 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 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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