参数资料
| 型号： | OP497GSZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP 500KHZ QUAD 16SOIC |
| 标准包装： | 1,000 |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 转换速率： | 0.15 V/µs |
| 增益带宽积： | 500kHz |
| 电流 - 输入偏压： | 60pA |
| 电压 - 输入偏移： | 80µV |
| 电流 - 电源： | 525µA |
| 电流 - 输出 / 通道： | 25mA |
| 电压 - 电源，单路/双路(±)： | ±2 V ~ 20 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
OP497
Rev. E | Page 11 of 16
GUARDING AND SHIELDING
To maintain the extremely high input impedances of the OP497,
care must be taken in circuit board layout and manufacturing.
Board surfaces must be kept scrupulously clean and free of
moisture. Conformal coating is recommended to provide a
humidity barrier. Even a clean PCB can have 100 pA of leakage
currents between adjacent traces; therefore, use guard rings
around the inputs. Guard traces are operated at a voltage close
to that on the inputs, as shown in Figure 34, so that leakage
currents become minimal. In noninverting applications, connect
the guard ring to the common-mode voltage at the inverting
input. In inverting applications, both inputs remain at ground;
therefore, the guard trace should be grounded. Place guard
traces on both sides of the circuit board.
1/4
OP497
UNITY-GAIN FOLLOWER
NONINVERTING AMPLIFIER
INVERTING AMPLIFIER
B
8
A
1
PDIP
BOTTOM VIEW
–
+
–
+
–
+
1/4
OP497
1/4
OP497
00
30
9-
0
35
Figure 34. Guard Ring Layout and Connections
OPEN-LOOP GAIN LINEARITY
The OP497 has both an extremely high gain of 2000 V/mV
typical and constant gain linearity. This enhances the precision
of the OP497 and provides for very high accuracy in high
closed-loop gain applications. Figure 35 illustrates the typical
open-loop gain linearity of the OP497.
OUTPUT VOLTAGE (V)
–15
–10
–5
0
5
10
15
D
IF
F
ER
E
N
T
IA
L
I
N
PU
T
VO
L
T
A
G
E
(
1
0
V
/D
IV
)
RL = 10k
VS = ±15V
VCM = 0V
TA = 25°C
TA = 125°C
0
03
09
-03
6
Figure 35. Open-Loop Gain Linearity
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相关代理商/技术参数 |
参数描述 |
|---|---|
| OP497GSZ-REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision Picoampere Input Current Quad Operational Amplifier |
| OP497GY | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Operational Amplifier |
| OP-497GY | 制造商:AD 制造商全称:Analog Devices 功能描述:PRECISION PICOAMPERE INPUT CURRENT QUAD OPERATIONAL AMPLIFIER |
| OP-4FM1-0442 | 功能描述:LED 照明镜头配支架 Optic Atlas Series Narrow with Holder RoHS:否 制造商:Molex 类型:LED Array Holders with Cover 用于:Sharp Mega Zenigata Series 显示角: 安装风格:Screw 系列: 封装: |
| OP-4FW1-0441 | 功能描述:LED 照明镜头配支架 Optic Atlas Series Wide with Holder RoHS:否 制造商:Molex 类型:LED Array Holders with Cover 用于:Sharp Mega Zenigata Series 显示角: 安装风格:Screw 系列: 封装: |
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