参数资料
| 型号： | LT1002CN |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC PREC OPAMP DUAL MATCHED 14DIP |
| 标准包装： | 25 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 转换速率： | 0.25 V/µs |
| 增益带宽积： | 800kHz |
| 电流 - 输入偏压： | 700pA |
| 电压 - 输入偏移： | 25µV |
| 电压 - 电源，单路/双路(±)： | ±3 V ~ 18 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 14-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-PDIP |
| 包装： | 管件 |
10
LT1002
1002fb
APPLICATIONS INFORMATION
WU
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Advantages of Matched Dual Op Amps In many applica-
tions the performance of a system depends on the match-
ing between two operational amplifiers rather than the
individual characteristics of the two op amps. Two or three
op amp instrumentation amplifiers, tracking voltage refer-
ences and low drift active filters are some of the circuits
requiring matching between two op amps.
The well-known triple op amp configuration illustrates
these concepts. Output offset is a function of the differ-
ence between the offsets of the two halves of the LT1002.
This error cancellation principle holds for a considerable
number of input referred parameters in addition to offset
voltage and its drift with temperature. Input bias current
will be the average of the two non-inverting input currents
(IB+). The difference between these two currents (IOS+) is
the offset current of the instrumentation amplifier. The
difference between the inverting input currents (IOS–) will
cause errors flowing through R1, R2, and R3. Common-
mode and power supply rejections will be dependent only
on the match between the two amplifiers (assuming
perfect resistor matching).
The concepts of common mode and power supply rejec-
tion ratio match (
CMRR and PSRR) are best demon-
strated with a numerical example:
Assume CMRRA = + 1.0V/V or 120dB,
and CMRRB = + 0.75V/V or 122.5dB,
then
CMRR = 0.25V/V or 132dB;
if CMRRB = – 0.75V/V which is still 122.5dB,
then
CMRR = 1.75V/V or 115dB.
Clearly, the LT1002, by specifying and guaranteeing all of
these matching parameters, can significantly improve the
performance of matching dependent circuits.
1002 TA07
R1
10k
1%
R4
100
1%
R6
10k
1%
R5
100
1%
INPUT
OUTPUT
–
+
GAIN = 1000
–
+
A
1/2 LT1002
–
+
B
1/2 LT1002
LT1037
–
INPUT +
R2
10k
1%
R7
9.76k
1%
R3
2.1k
1%
C1
100pF
R10
100k
R8
200
R9
200
Three Op Amp Instrumentation Amplifier
Trim R8 for gain
Trim R9 for DC common mode rejection
Trim R10 for AC common mode rejection
Typical performance of the instrumentation amplifier:
Input offset voltage = 25
V
Input bias current = 0.7nA
Input resistance = 200 G
Input offset current = 0.6nA
Input noise = 0.5
V p-p
Power bandwidth (V0 = ±10V) = 80kHz
相关PDF资料 |
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| LT1006S8#TRPBF | IC PREC OP-AMP 5V SINGLE 8-SOIC |
| LT1008S8#TRPBF | IC PREC OPAMP UNIVRSL SNGL 8SOIC |
| LT1010CT#06PBF | IC BUFFER HI-SPEED 150MA TO220-5 |
| LT1012CN8 | IC PREC OP-AMP UNVRSL SNGL 8-DIP |
| LT1013CN8 | IC PRECISION OP-AMP DUAL 8-DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1002CN#PBF | 功能描述:IC PREC OPAMP DUAL MATCHED 14DIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1002M | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual, Matched Precision Operational Amplifier |
| LT1002MJ | 制造商:Linear Technology 功能描述:OP Amp Dual GP 制造商:Linear Technology 功能描述:OP Amp Dual GP ±22V 14-Pin CDIP |
| LT1002MJ/883 | 制造商:Linear Technology 功能描述:OP Amp Dual GP ±22V 14-Pin CDIP |
| LT1003 | 制造商:LINER 制造商全称:Linear Technology 功能描述:5 Volt, 5 Amp Voltage Regulator |
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