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| 型号： | LT1789IS8-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/24页 |
| 文件大小： | 0K |
| 描述： | IC INSTRUMENT AMP R-R OUT 8-SOIC |
| 标准包装： | 100 |
| 放大器类型： | 仪表 |
| 电路数： | 1 |
| 转换速率： | 0.026 V/µs |
| 增益带宽积： | 60kHz |
| 电流 - 输入偏压： | 17nA |
| 电压 - 输入偏移： | 30µV |
| 电流 - 电源： | 85µA |
| 电流 - 输出 / 通道： | 8.5mA |
| 电压 - 电源，单路/双路(±)： | 2.2 V ~ 36 V，±1.1 V ~ 18 V |
| 工作温度： | -40°C ~ 85°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 |
| 产品目录页面： | 1323 (CN2011-ZH PDF) |
LT1789-1/LT1789-10
18
1789fc
BLOCK DIAGRAM
Figure 1. Block Diagram
Setting the Gain
The gain of the LT1789-1 and LT1789-10 is set by the
value of resistor RG, applied across pins 1 and 8. For the
LT1789-1, the gain G will be:
G = 1+ 200k/RG
and RG can be calculated from the desired gain by
RG = 200k/(G – 1)
For the LT1789-10, the gain G will be
G =10 (1 + 200k/RG)
and RG can be calculated from the desired gain by
RG = 200k/(0.1 G – 1)
For the lowest achievable gain, RG may be set to infinity
by leaving Pins 1 and 8 open.
Input and Output Offset Voltage
The offset voltage of the LT1789-1/LT1789-10 has two
components: the output offset and the input offset. The
total offset voltage referred to the input (RTI) is found by
dividing the output offset by the programmed gain (G) and
adding it to the input offset. At high gains the input offset
voltage dominates, whereas at low gains the output offset
voltage dominates. The total offset voltage is:
T otal
input
offset
voltage
(R TI)
= input offset + (output offset/G)
To tal
output
offset
voltage
(R TO)
= (input offset G) + output offset
–
+
3
1
A1
V–
+IN
RG
V+
V–
V+
5.7k
100k
R1
110k/10k*
VB
–
+
2
8
A2
V–
1789 F01
–IN
RG
V+
5.7k
100k
R3
110k/10k*
R2
110k/100k*
R4
110k/100k*
VB
6 OUT
7 V+
4 V–
5 REF
–
+
A3
*LT1789-1/LT1789-10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1789IS8-1-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifiers |
| LT1789IS8-1-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifiers |
| LT1790 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Easy-to-Use, Ultra-Tiny, Differential, 16-Bit ADC With I2C Interface |
| LT1790-2.5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Serial 12-Bit/14-Bit, 2.8Msps |
| LT1790A | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower SOT-23 Low Dropout Reference Family |
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