参数资料
型号: AD823AR-REEL7
厂商: Analog Devices Inc
文件页数: 6/20页
文件大小: 0K
描述: IC OPAMP JFET R-R DUAL LN 8SOIC
标准包装: 750
放大器类型: J-FET
电路数: 2
输出类型: 满摆幅
转换速率: 25 V/µs
-3db带宽: 16MHz
电流 - 输入偏压: 5pA
电压 - 输入偏移: 700µV
电流 - 电源: 7mA
电流 - 输出 / 通道: 17mA
电压 - 电源,单路/双路(±): 3 V ~ 36 V,±1.5 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 带卷 (TR)
其它名称: AD823AR-REEL7TR
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
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AD823ARZ 功能描述:IC OPAMP JFET R-R DUAL LN 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源,单路/双路(±):3 V ~ 32 V,±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP(0.173",4.40mm 宽) 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR
AD823ARZ 制造商:Analog Devices 功能描述:Operational Amplifier (Op-Amp) IC
AD823ARZ-R7 功能描述:IC OPAMP JFET R-R DUAL LN 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源,单路/双路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP(0.173",4.40mm 宽) 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT
AD823ARZ-RL 功能描述:IC OPAMP JFET R-R DUAL LN 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源,单路/双路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP(0.173",4.40mm 宽) 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT
AD824 制造商:AD 制造商全称:Analog Devices 功能描述:Single Supply, Rail-to-Rail Low Power, FET-Input Op Amp