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| 型号： | AD822ARMZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP R-R 1.9MHZ LP 8MSOP |
| 设计资源： | 16-Bit Fully Isolated 4 mA to 20 mA Output Module Using AD5662, ADuM1401, and External Amplifiers (CN0064) |
| 标准包装： | 1 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 3 V/µs |
| 增益带宽积： | 1.9MHz |
| -3db带宽： | 1.9MHz |
| 电流 - 输入偏压： | 2pA |
| 电压 - 输入偏移： | 400µV |
| 电流 - 电源： | 1.4mA |
| 电流 - 输出 / 通道： | 20mA |
| 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-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 773 (CN2011-ZH PDF) |
| 其它名称： | AD822ARMZ-REELDKR |
AD822
Rev. I | Page 19 of 24
90
... .
....
.... .... .... .... .... .... .... . ...
....
.... . ... . ... .... .... .... .... . ...
100
0%
10
20mV
2s
00
87
4-
0
44
Figure 44. Small Signal Response of AD822 as
Unity-Gain Follower Driving 350 pF
Figure 45 is a plot of noise gain vs. capacitive load that results in
a 20° phase margin for the AD822. Noise gain is the inverse of
the feedback attenuation factor provided by the feedback
network in use.
1
2
3
4
5
300
1k
3k
10k
30k
CAPACITIVE LOAD FOR 20° PHASE MARGIN (pF)
NO
IS
E
G
AI
N
1+
R
F
R
1
R1
RF
CL
00
87
4-
0
45
Figure 45. Noise Gain vs. Capacitive Load Tolerance
Figure 46 shows a method for extending capacitance load drive
capability for a unity-gain follower. With these component
values, the circuit drives 5000 pF with a 10% overshoot.
20pF
100
20k
8
4
VIN
V+
0.01F
VOUT
0.01F
CL
1/2
AD822
+
–
V–
00
87
4-
0
46
Figure 46. Extending Unity-Gain Follower Capacitive Load Capability
Beyond 350 pF
SINGLE-SUPPLY VOLTAGE-TO-FREQUENCY
CONVERTER
The circuit shown in Figure 47 uses the AD822 to drive a low
power timer that produces a stable pulse of width t1. The positive
going output pulse is integrated by R1 and C1 and used as one
input to the AD822 that is connected as a differential integrator.
The other input (nonloading) is the unknown voltage, VIN. The
AD822 output drives the timer trigger input, closing the overall
feedback loop.
2
3
4
6
5
U3A
U3B
C3
0.1F
1
2
3
4
OUT2
OUT1
U1
C1
U2
CMOS 555
THR
TR
DIS
GND
OUT
CV
1
2
3
4
5
6
7
8
RV+
C4
0.01F
R3
116k
0.01F, 2%
CMOS
74HCO4
RSCALE
10k
U4
REF02
VREF = 5V
10V
C5
0.1F
R2
499k
1%
R1
499k
1%
VIN
C2
0.01F
2%
0V TO 2.5V
FULL SCALE
1/2
AD822B
+
–
NOTES
1. fOUT = VIN/(VREF × t1), t1 = 1.1 × R3 × C6.
2. R3 = 1% METAL FILM <50ppm/°C TC.
3. RSCALE = 10% 20T FILM <100ppm/°C TC.
4. t1 = 33F FOR fOUT = 20kHz @ VIN = 2.0V.
= 25kHz
fS AS SHOWN.
0
08
74-
047
Figure 47. Single-Supply Voltage-to-Frequency Converter
Typical AD822 bias currents of 2 pA allow MΩ range source
impedances with negligible dc errors. Linearity errors on the
order of 0.01% full scale can be achieved with this circuit. This
performance is obtained with a 5 V single supply that delivers
less than 1 mA to the entire circuit.
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| AD822AR-REEL | 功能描述:IC OPAMP GP R-R 1.9MHZ LP 8SOIC RoHS:否 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 |
| AD822AR-REEL7 | 功能描述:IC OPAMP GP R-R 1.9MHZ LP 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:73 系列:Over-The-Top® 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.07 V/µs 增益带宽积:200kHz -3db带宽:- 电流 - 输入偏压:1nA 电压 - 输入偏移:285µV 电流 - 电源:50µA 电流 - 输出 / 通道:25mA 电压 - 电源，单路/双路(±):2 V ~ 44 V，±1 V ~ 22 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WFDFN 裸露焊盘 供应商设备封装:16-DFN-EP（5x3） 包装:管件 |
| AD822AR-REEL7-RAYTON | 制造商:Analog Devices 功能描述: |
| AD822ARZ | 功能描述:IC OPAMP GP R-R 1.9MHZ LP 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 |
| AD822ARZ | 制造商:Analog Devices 功能描述:IC OP-AMP 1.8MHZ 3V/ US |
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