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器件3D模型￥ 2.907
INA826AIDGKR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
仪表放大器
封装:
VSSOP-8
描述:
TEXAS INSTRUMENTS INA826AIDGKR 仪器放大器, 单路, 1个放大器, 40 µV, 1 V/µs, 1 MHz, 2.7V 至 36V, ± 1.35V 至 ± 18V, VSSOP
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P6Hot
典型应用电路图在P20
封装尺寸在P33P35P36
型号编码规则在P2
标记信息在P33
封装信息在P2P33P34P35P36
技术参数、封装参数在P2
应用领域在P1P43
电气规格在P3P4P5
导航目录
INA826AIDGKR数据手册
Page:
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若手册格式错乱，请下载阅览PDF原文件
+Vs
+Vs
-Vs
-Vs
+Vs
-Vs
Vout
-
+
+
U2 OPA170
R1 10k
R2 10k
C1 100p
Rset 10k
RG 1k
+
Vin
A
+
Iset
RL 1k
-
+
Vdiff
+
+
-
Rg
Rg
Ref
U4 INA826
V1 15
V2 15
INA826
SBOS562E –AUGUST 2011–REVISED APRIL 2013
www.ti.com
The circuit in Figure 70 creates a precision current I
SET
by forcing the INA826 V
DIFF
across R
SET
. The input
voltage V
IN
is amplified to the output of the INA826 and then divided down by the gain of the INA826 to create
V
DIFF
. I
SET
can be controlled either by changing the value of the gain-set resistor R
G
, the set resistor R
SET
, or by
changing V
OUT
through the gain of the composite loop. Care must be taken to ensure that the changing load
resistance R
L
does not create a voltage on the negative input of the INA826 that violates the compliance of the
common-mode input range. Likewise, the voltage on the output of the OPA170 must remain compliant
throughout the changing load resistance for this circuit to work properly. Click the following link to download the
TINA-TI file: Current Source.
Figure 70. Precision Current Source
30 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: INA826
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