- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5934 > AD823ARZ-RL (Analog Devices Inc)IC OPAMP JFET R-R DUAL LN 8SOIC PDF資料下載
參數(shù)資料
| 型號： | AD823ARZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP JFET R-R DUAL LN 8SOIC |
| 標準包裝： | 2,500 |
| 放大器類型： | J-FET |
| 電路數(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉換速率： | 25 V/µs |
| -3db帶寬： | 16MHz |
| 電流 - 輸入偏壓： | 5pA |
| 電壓 - 輸入偏移： | 700µV |
| 電流 - 電源： | 7mA |
| 電流 - 輸出 / 通道： | 17mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 36 V，±1.5 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) |
AD823
Data Sheet
Rev. E | Page 14 of 20
OUTPUT IMPEDANCE
The low frequency open-loop output impedance of the common-
emitter output stage used in this design is approximately 30 k.
Although this is significantly higher than a typical emitter
follower output stage, when it is connected with feedback, the
output impedance is reduced by the open-loop gain of the op
amp. With 109 dB of open-loop gain, the output impedance is
reduced to <0.2 . At higher frequencies, the output impedance
rises as the open-loop gain of the op amp drops; however, the
output also becomes capacitive due to the integrator capacitors
C1 and C2. This prevents the output impedance from ever
becoming excessively high (see Figure 18), which can cause
stability problems when driving capacitive loads. In fact, the AD823
has excellent cap-load drive capability for a high frequency op
amp. Figure 34 shows the AD823 connected as a follower while
driving 470 pF direct capacitive load. Under these conditions,
the phase margin is approximately 20°. If greater phase margin
is desired, a small resistor can be used in series with the output
to decouple the effect of the load capacitance from the op amp
(see Figure 26). In addition, running the part at higher gains
also improves the capacitive load drive capability of the op amp.
VOUT
S1N
C1
S1P
C5
R1
gmVI
gm2
C2
R2
00901-
037
Figure 37. Small Signal Schematic
相關PDF資料 |
PDF描述 |
|---|---|
| 2-640504-4 | CONN HEADER .120 20POS PCB 30AU |
| MS 4 | FUSE 4A 125V SLOW AXL BULK MS |
| 640504-4 | CONN HEADER .120 20POS PCB 30AU |
| LTC2051HVCDD | IC OP AMP ZERO-DRIFT DUAL 8-DFN |
| MS 1 | FUSE 1A 125V SLOW AXL BULK MS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD824 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single Supply, Rail-to-Rail Low Power, FET-Input Op Amp |
| AD824_03 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single Supply, Rail-to-Rail Low Power, FET-Input Op Amp |
| AD8240 | 制造商:AD 制造商全稱:Analog Devices 功能描述:LED Driver/Monitor |
| AD8240YRM | 功能描述:IC LED DRIVER PWM CONTROL 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓撲:開路漏極，PWM 輸出數(shù):4 內(nèi)部驅動器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應商設備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| AD8240YRM-REEL | 制造商:Analog Devices 功能描述:LED DRVR 6Segment 12V/15V/18V/24V 8-Pin MSOP T/R |
發(fā)布緊急采購，3分鐘左右您將得到回復。