参数资料
型号: AD648KRZ
厂商: Analog Devices Inc
文件页数: 2/12页
文件大小: 0K
描述: IC OPAMP BIFET 1MHZ DUAL 8SOIC
标准包装: 98
放大器类型: J-FET
电路数: 2
转换速率: 1.8 V/µs
增益带宽积: 1MHz
电流 - 输入偏压: 3pA
电压 - 输入偏移: 300µV
电流 - 电源: 340µA
电流 - 输出 / 通道: 15mA
电压 - 电源,单路/双路(±): ±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-SO
包装: 管件
AD648
REV. E
–10–
INSTRUMENTATION AMPLIFIER
The AD648J’s maximum input current of 20 pA per amplifier
makes it an excellent building block for the high input impedance
instrumentation amplifier shown in Figure 29. Total current
drain for this circuit is under 600
A. This configuration is
optimal for conditioning differential voltages from high imped-
ance sources.
The overall gain of the circuit is controlled by RG, resulting in
the following transfer function:
VOUT
VIN
= 1+
( R3
+ R4)
RG
Gains of 1 to 100 can be accommodated with gain nonlinearities
of less than 0.01%. The maximum input current is 30 pA over
the common-mode range, with a common-mode impedance of
over 1
× 1012 . The capacitors C1, C2, C3 and C4 compensate
for peaking in the gain over frequency which is caused by input
capacitance.
To calibrate this circuit, first adjust trimmer R1 for common-
mode rejection with 10 V dc applied to the input pins. Next,
adjust R2 for zero offset at VOUT with both inputs grounded.
Trim the circuit a second time for optimal
performance.
The –3 dB small signal bandwidth for this low power instru-
mentation amplifier is 700 kHz for a gain of 1 and 10 kHz for a
gain of 100. The typical output slew rate is 1.8 V/
s.
Figure 29. Low Power Instrumentation Amplifier
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相关代理商/技术参数
参数描述
AD648KRZ-REEL 功能描述:IC OPAMP BIFET 1MHZ DUAL 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:150 系列:- 放大器类型:音频 电路数:2 输出类型:- 转换速率:5 V/µs 增益带宽积:12MHz -3db带宽:- 电流 - 输入偏压:100nA 电压 - 输入偏移:500µV 电流 - 电源:6mA 电流 - 输出 / 通道:50mA 电压 - 电源,单路/双路(±):4 V ~ 32 V,±2 V ~ 16 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP(0.173",4.40mm 宽) 供应商设备封装:8-TSSOP 包装:管件
AD648KRZ-REEL7 功能描述:IC OPAMP BIFET 1MHZ DUAL 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:150 系列:- 放大器类型:音频 电路数:2 输出类型:- 转换速率:5 V/µs 增益带宽积:12MHz -3db带宽:- 电流 - 输入偏压:100nA 电压 - 输入偏移:500µV 电流 - 电源:6mA 电流 - 输出 / 通道:50mA 电压 - 电源,单路/双路(±):4 V ~ 32 V,±2 V ~ 16 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP(0.173",4.40mm 宽) 供应商设备封装:8-TSSOP 包装:管件
AD648S 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Precision, Low Power BiFET Op Amp
AD648SCHIPS 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Precision, Low Power BiFET Op Amp
AD648SH 制造商:未知厂家 制造商全称:未知厂家 功能描述:Operational Amplifier