参数资料
型号: AD711KR
厂商: Analog Devices Inc
文件页数: 16/16页
文件大小: 0K
描述: IC OPAMP BIFET PREC 25MA 8SOIC
标准包装: 98
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: 200µV
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: 0°C ~ 70°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-SOIC
包装: 管件
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.
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AD711KR-REEL 制造商:Analog Devices 功能描述:OP Amp Single GP ±18V 8-Pin SOIC N T/R
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AD711KRZ 制造商:Analog Devices 功能描述:IC OP-AMP 4MHZ 20V/ ((NW)) 制造商:Analog Devices 功能描述:IC, OP-AMP, 4MHZ, 20V/ us, SOIC-8
AD711KRZ-REEL 功能描述:IC OPAMP BIFET PREC 25MA 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源,单路/双路(±):3 V ~ 16 V,±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5