Name: TI INA128UA/2K5
Brand: TI
Availability: InStock

产品实拍图

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引脚定义与内部结构

引脚	符号	名称
1	10000
2	I
3	O
4	G
5	G
6	V

数据来源：原厂规格书引脚图

关键参数速览

工作温度 TA: ±125±1000/G

产品特点 Features

Ω LOW OFFSET VOLTAGE: 50µV max
Ω LOW DRIFT: 0.5µV/ΩC max
LOW INPUT BIAS CURRENT: 5nA
HIGH CMR: 120dB min
Ω INPUTS PROTECTED TO kΩ40V
Ω WIDE SUPPLY RANGE: kΩ2.25V to
Ω LOW QUIESCENT CURRENT: 700µA
8-PIN PLASTIC DIP, SO-8
The INA128 and INA129 are low power, general purpose instrumentation amplifiers offering excellent accuracy. The versatile 3-op amp design and small size make them ideal for a wide range of applications.
Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).
A single external resistor sets any gain from 1 to 10,000.
The INA128 provides an industry-standard gain equation; the INA129 gain equation is compatible with

绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）

超过下表数值可能造成器件永久损坏，设计时请留余量。

参数	条件	最小	典型	最大	最小2	典型2	最大2	单位
								"#$ "#%

数据来源：原厂规格书

电气特性 Electrical Characteristics（TA = 25°C）

参数	条件	最小	典型	最大	最小2	典型2	最大2	单位
			INA128P, U			INA128PA,	UA
			INA129P. U			INA129PA,	UA
Initial	TA = +25°C		±10±100/G	±50±500/G		±25±100/G	±125±1000/G	µV
vs Temperature	TA = TMIN to TMAX		±0.2±2/G	±0.5±20/G		±0.2±5/G	±1±20/G	µV/°C
vs Power Supply	VS = ±2.25V to ±18V		±0.2±20/G	±1±100/G		∗	±2±200/G	µV/V
Long-Term Stability			±0.1±3/G			∗		µV/mo
Impedance, Differential			1010 \|\| 2			∗		Ω \|\| pF
Common-Mode			1011 \|\| 9			∗		Ω \|\| pF
Common-Mode Voltage Range(1)	VO = 0V	(V+) − 2	(V+) − 1.4		∗	∗		V
		(V−) + 2	(V−) + 1.7		∗	∗		V
Safe Input Voltage				±40			∗	V
	G = 1	80	86		73	∗		dB
	G = 10	100	106		93	∗		dB
	G = 100	120	125		110	∗		dB
	G = 1000	120	130		110	∗		dB
BIAS CURRENT			±2	±5		∗	±10	nA
vs Temperature			±30			∗		pA/°C
Offset Current			±1	±5		∗	±10	nA
vs Temperature			±30			∗		pA/°C
f = 10Hz			10			∗		nV/√Hz
f = 100Hz			8			∗		nV/√Hz
f = 1kHz			8			∗		nV/√Hz
fB = 0.1Hz to 10Hz			0.2			∗		µVPP
f = 10Hz			0.9			∗		pA/√Hz
f = 1kHz			0.3			∗		pA/√Hz
fB = 0.1Hz to 10Hz			30			∗		pAPP
Gain Equation, INA128			1 + (50kΩ/RG )			∗		V/V
Gain Equation, INA129			1 + (49.4kΩ/RG )			∗		V/V
Range of Gain		1		10000	∗		∗	V/V
Gain Error	G = 1		±0.01	±0.024		∗	±0.1	%
	G = 10		±0.02	±0.4		∗	±0.5	%
	G = 100		±0.05	±0.5		∗	±0.7	%
	G = 1000		±0.5	±1		∗	±2	%
Gain vs Temperature(2)	G = 1		±1	±10		∗	∗	ppm/°C
50kΩ (or 49.4kΩ) Resistance(2)(3)			±25	±100		∗	∗	ppm/°C
Nonlinearity	VO = ±13.6V, G = 1		±0.0001	±0.001		∗	±0.002	% of FSR
	G = 10		±0.0003	±0.002		∗	±0.004	% of FSR
	G = 100		±0.0005	±0.002		∗	±0.004	% of FSR
	G = 1000		±0.001	(4)		∗	∗	% of FSR
			INA128P, U			INA128PA,	UA
			INA129P. U			INA129PA,	UA
Voltage: Positive	RL = 10kΩ	(V+) − 1.4	(V+) − 0.9		∗	∗		V
Voltage: Negative	RL = 10kΩ	(V−) + 1.4	(V−) + 0.8		∗	∗		V
Load Capacitance Stability			1000			∗		pF
Short-Circuit Current			+6/−15			∗		mA
Bandwidth, −3dB	G = 1		1.3			∗		MHz
	G = 10		700			∗		kHz
	G = 100		200			∗		kHz
	G = 1000		20			∗		kHz
Slew Rate	VO = ±10V, G = 10		4			∗		V/µs
Settling Time, 0.01%	G = 1		7			∗		µs
	G = 10		7			∗		µs
	G = 100		9			∗		µs
	G = 1000		80			∗		µs
Overload Recovery	50% Overdrive		4			∗		µs
Voltage Range		±2.25	±15	±18	∗	∗	∗	V
Current, Total	VIN = 0V		±700	±750		∗	∗	µA
Specification		−40		+85	∗		∗	°C
Operating		−40		+125	∗		∗	°C
Ω JA 8-Pin DIP			80			∗		°C/W
SO-8 SOIC			150			∗		°C/W

应用领域 Applications

BRIDGE AMPLIFIERTHERMOCOUPLE AMPLIFIERRTD SENSOR AMPLIFIERMEDICAL INSTRUMENTATIONDATA ACQUISITION− 2 Over-VoltageIN Protection+ 3 Over-VoltageIN Protection the AD620.7 INA128:INA128, INA129 50kΩG = 1 +

产品应用与封装尺寸

图纸取自该型号原厂规格书的应用电路与封装尺寸章节，点击图片可放大查看原始尺寸标注。

资料下载

📄 INA128UA/2K5 规格书 PDF

规格书为原厂公开资料，点击在新窗口打开下载。

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INA128UA/2K5 8-PIN PLASTIC