参数资料
| 型号： | AD711AQ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP BIFET PREC 25MA 8CDIP |
| 产品培训模块： | Op Amp Basics |
| 标准包装： | 48 |
| 放大器类型： | J-FET |
| 电路数： | 1 |
| 转换速率： | 20 V/µs |
| -3db带宽： | 4MHz |
| 电流 - 输入偏压： | 15pA |
| 电压 - 输入偏移： | 300µV |
| 电流 - 电源： | 2.5mA |
| 电流 - 输出 / 通道： | 25mA |
| 电压 - 电源，单路/双路(±)： | 9 V ~ 36 V，±4.5 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-CERDIP |
| 包装： | 管件 |
| 产品目录页面： | 773 (CN2011-ZH PDF) |
REV. E
AD711
–9–
Figure 5a. Settling Characteristics 0 to +10 V Step
Upper Trace: Output of AD711 Under Test (5 V/Div)
Lower Trace: Amplified Error Voltage (0.01%/Div)
Figure 5b. Settling Characteristics 0 to –10 V Step
Upper Trace: Output of AD711 Under Test (5 V/Div)
Lower Trace: Amplified Error Voltage (0.01%/Div)
GUARDING
The low input bias current (15 pA) and low noise characteristics
of the AD711 BiFET op amp make it suitable for electrometer
applications such as photo diode preamplifiers and picoampere
5pF
AD3554
VERROR
5
+15V
5k
–15V
0.47 F
HP2835
TEXTRONIX 7A26
OSCILLOSCOPE
PREAMP
INPUT SELECTION
1M
20pF
0.1 F
AD711
+15V
–15V
0.1 F
VOUT
10pF
HP2835
10k
0.2-0.0pF
1.1k
10k
5-18pF
10k
200k
4.99k
VIN
DATA
DYNAMICS
5109
(OR
EQUIVALENT
FLAT TOP
PULSE
GENERATOR)
0.47 F
205
Figure 6. Settling Time Test Circuit
current-to-voltage converters. The use of a guarding technique
such as that shown in Figure 7, in printed circuit board layout
and construction is critical to minimize leakage currents. The
guard ring is connected to a low impedance potential at the
same level as the inputs. High impedance signal lines should
not be extended for any unnecessary length on the printed
circuit board.
1
8
7
6
5
4
3
2
6
5
7
8
2
3
1
4
Figure 7. Board Layout for Guarding Inputs
D/A CONVERTER APPLICATIONS
The AD711 is an excellent output amplifier for CMOS DACs.
It can be used to perform both 2-quadrant and 4-quadrant
operation. The output impedance of a DAC using an inverted
R-2R ladder approaches R for codes containing many 1s, 3R
for codes containing a single 1, and for codes containing all
zero, the output impedance is infinite.
For example, the output resistance of the AD7545 will modu-
late between 11 k
W and 33 kW. Therefore, with the DAC’s
internal feedback resistance of 11 k
W, the noise gain will vary
from 2 to 4/3. This changing noise gain modulates the effect of
the input offset voltage of the amplifier, resulting in nonlinear
DAC amplifier performance.
The AD711K with guaranteed 500
mV offset voltage minimizes
this effect to achieve 12-bit performance.
相关PDF资料 |
PDF描述 |
|---|---|
| 929836-01-10-RK | CONN HEADER 20POS DUAL .100 TIN |
| 9-103329-0-15 | CONN HEADR BRKWAY .100 15POS R/A |
| 929834-04-13-RK | CONN HEADER .100 SNGL STR 13POS |
| 929834-02-23-RK | CONN HEADER .100 SNGL STR 23POS |
| 929400-01-23-RK | CONN HEADER .100 SNGL STR 23POS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD711BH | 制造商:Rochester Electronics LLC 功能描述:HIGH SPEED BIFET OP AMP - Bulk |
| AD711BQ | 制造商:Rochester Electronics LLC 功能描述:HIGH SPEED BIFET OP AMP - Bulk |
| AD711CH | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, Low Cost, High Speed, BiFET Op Amp |
| AD711CQ | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, Low Cost, High Speed, BiFET Op Amp |
| AD711CQ/+ | 制造商:Analog Devices 功能描述: |
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