参数资料
| 型号： | AD8610AR |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP JFET 25MHZ PREC 8SOIC |
| 设计资源： | Precision, AC Reference Signal Attenuator Using AD5546/56 Multiplying DAC (CN0025) |
| 标准包装： | 98 |
| 放大器类型： | J-FET |
| 电路数： | 1 |
| 转换速率： | 60 V/µs |
| 增益带宽积： | 25MHz |
| 电流 - 输入偏压： | 3pA |
| 电压 - 输入偏移： | 85µV |
| 电流 - 电源： | 3mA |
| 电流 - 输出 / 通道： | 45mA |
| 电压 - 电源，单路/双路(±)： | ±5 V ~ 13 V |
| 工作温度： | -40°C ~ 125°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： | 管件 |
AD8610/AD8620
Rev. F | Page 14 of 24
Driving Large Capacitive Loads
The AD8610/AD8620 have excellent capacitive load driving
capability and can safely drive up to 10 nF when operating with
AD8620 against the OPA627 in the noninverting gain configu-
ration driving a 10 kΩ resistor and 10,000 pF capacitor placed
in parallel on its output, with a square wave input set to a frequency
of 200 kHz. The AD8610/AD8620 have much less ringing than
the OPA627 with heavy capacitive loads.
02
73
0-
04
4
V
O
L
T
A
G
E
(
20
m
V/
D
IV)
TIME (2s/DIV)
VS = ±5V
RL = 10k
CL = 10,000pF
Figure 44. OPA627 Driving CL = 10,000 pF
02
73
0-
0
45
V
O
L
T
A
G
E
(2
0m
V/
D
IV)
TIME (2s/DIV)
VS = ±5V
RL = 10k
CL = 10,000pF
Figure 45. AD8610/AD8620 Driving CL = 10,000 pF
The AD8610/AD8620 can drive much larger capacitances
without any external compensation. Although the AD8610/
AD8620 are stable with very large capacitive loads, remember
that this capacitive loading limits the bandwidth of the amplifier.
Heavy capacitive loads also increase the amount of overshoot
AD8610/AD8620 and the OPA627 in a noninverting gain of +2
driving 2 μF of capacitance load. The ringing on the OPA627 is
much larger in magnitude and continues 10 times longer than
the AD8610/AD8620.
VIN = 50mV
2k
–5V
+5V
2F
3
2
7
4
02
73
0-
04
6
Figure 46. Capacitive Load Drive Test Circuit
02
73
0-
0
47
V
O
L
T
A
G
E
(
50
m
V/
D
IV)
TIME (20s/DIV)
VS = ±5V
RL = 10k
CL = 2F
Figure 47. OPA627 Capacitive Load Drive, AV = +2
02
73
0-
0
48
V
O
L
T
A
G
E
(5
0m
V/
D
IV)
TIME (20s/DIV)
VS = ±5V
RL = 10k
CL = 2F
Figure 48. AD8610/AD8620 Capacitive Load Drive, AV = +2
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