INA129UA/2K5

更新时间： 2024-11-19 11:06:59

品牌	Logo	应用领域
德州仪器 - TI		放大器仪表光电二极管运算放大器仪表放大器放大器电路
页数	文件大小	规格书
20页	1560K
描述
精密低功耗仪表放大器 \| D \| 8 \| -40 to 125

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INA129UA/2K5 数据手册

INA128

INA129

SBOS051B − OCTOBER 1995 − REVISED FEBRUARY 2005

Precision, Low Power

INSTRUMENTATION AMPLIFIERS

F_DEATURES

DESCRIPTION

LOW OFFSET VOLTAGE: 50µV max

LOW DRIFT: 0.5µV/5C max

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).

LOW INPUT BIAS CURRENT: 5nA max

HIGH CMR: 120dB min

INPUTS PROTECTED TO +40V

WIDE SUPPLY RANGE: +2.25V to +18V

LOW QUIESCENT CURRENT: 700µA

8-PIN PLASTIC DIP, SO-8

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

the AD620.

A_DPPLICATIONS

The INA128/INA129 is laser trimmed for very low offset

BRIDGE AMPLIFIER

voltage (50µV),

drift (0.5µV/°C) and high

THERMOCOUPLE AMPLIFIER

RTD SENSOR AMPLIFIER

MEDICAL INSTRUMENTATION

DATA ACQUISITION

common-mode rejection (120dB at G ≥ 100). It

operates with power supplies as low as 2.25V, and

quiescent current is only 700µA—ideal for battery-

operated systems. Internal input protection can

withstand up to 40V without damage.

The INA128/INA129 is available in 8-pin plastic DIP and

SO-8 surface-mount packages, specified for the –40°C

to +85°C temperature range. The INA128 is also

available in a dual configuration, the INA2128.

V+

INA128:

Ω

R_G

50k

INA128, INA129

G = 1 +

−

V_IN

Over-Voltage

Protection

A₁

INA129:

Ω

40k

Ω

49.4k

G = 1 +

(1)

25kΩ

R_G

A₃

V_O

R_G

(1)

25kΩ

A₂

Ref

V_IN

Over-Voltage

Protection

Ω

40k

Ω

NOTE: (1) INA129: 24.7k

V−

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ

ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ

ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ

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INA129UA/2K5 替代型号

型号	品牌	替代类型	描述	数据表
INA129UA	TI	完全替代	Precision, Low Power INSTRUMENTATION AMPLIFIERS
INA122UA	TI	类似代替	单电源、微功耗仪表放大器 \| D \| 8
INA129U	TI	类似代替	精密低功耗仪表放大器 \| D \| 8

与INA129UA/2K5相关器件

型号	品牌	获取价格	描述	数据表
INA129UA/2K5E4	TI	获取价格	Precision, Low Power Instrumentation Amplifiers 8-SOIC -40 to 125
INA129UA/2K5G4	TI	获取价格	精密低功耗仪表放大器 \| D \| 8 \| -40 to 125
INA129UAE4	TI	获取价格	精密低功耗仪表放大器 \| D \| 8 \| -40 to 125
INA129UG4	TI	获取价格	Precision, Low Power Instrumentation Amplifiers 8-SOIC
INA131	BB	获取价格	Precision G = 100 INSTRUMENTATION AMPLIFIER
INA131	TI	获取价格	Precision G = 100 INSTRUMENTATION AMPLIFIER
INA131AG	BB	获取价格	Instrumentation Amplifier, 1 Func, BIPolar, CDIP8,
INA131AP	BB	获取价格	Precision G = 100 INSTRUMENTATION AMPLIFIER
INA131AP	TI	获取价格	Precision G = 100 INSTRUMENTATION AMPLIFIER
INA131AP-1	TI	获取价格	INSTRUMENTATION AMPLIFIER, 125uV OFFSET-MAX, 0.07MHz BAND WIDTH, PDIP8, PLASTIC, DIP-8

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