Datasheet > INA350CDSIDDFR

INA350CDSIDDFR

更新时间： 2024-11-21 11:06:51

品牌	Logo	应用领域
德州仪器 - TI		放大器仪表仪表放大器
页数	文件大小	规格书
45页	3912K
描述
微型 (2mm × 2mm)、低功耗 (100μA)、可选增益仪表放大器 \| DDF \| 8 \| -40 to 125

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INA350CDSIDDFR 数据手册

INA350

SBOSAA0A – NOVEMBER 2021 – REVISED DECEMBER 2021

INA350 Cost and Size Optimized, Low Power, 1.8-V to 5.5-V Selectable Gain

Instrumentation Amplifier

1 Features

3 Description

•

Ideal for size, cost, and power conscious designs

Selectable gain options

INA350 is a selectable-gain instrumentation amplifier

that offers four gain options across INA350ABS and

INA350CDS variants available in small packages.

INA350ABS has gain options of 10 or 20 and

INA350CDS has gain options of 30 or 50. These

gain options can be selected by toggling the gain

select (GS) pin. INA350 is ideal for bridge-type

sensing and for differential to single-ended conversion

applications.

– G = 10 or G = 20 (INA350ABS)

– G = 30 or G = 50 (INA350CDS)

Space saving ultra-small package options

– 10-pin X2QFN (RUG) – 3 mm²

– 8-pin WSON (DSG) – 4 mm²

•

– 8-pin SOT23-THN (DDF) – 4.64 mm²

Optimized performance for 10-bit to 14-bit systems

– CMRR: 95 dB (typ) across all gains

– Offset voltage: 0.2 mV (typ) across all gains

– Gain error (typ):

Built with precision matched integrated resistors,

INA350 saves on BOM costs, pick-and-place machine

handling costs, and board space by removing

the need for precise or closely-matched external

resistors. The device interface directly to low-speed,

10-bit to 14-bit, analog-to-digital converters (ADC)

and is ideal for replacing discrete implementation

of instrumentation amplifiers built with commodity

amplifiers and discrete resistors.

•

0.05% for G = 10; 0.06% for G = 20

0.075% for G = 30; 0.082% for G = 50

•

Bandwidth: 100 kHz for G = 10 (typ)

Drives 500 pF with less than 20% overshoot (typ)

Optimized quiescent current: 100 µA (typ)

Shutdown option for power conscious applications

Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)

Specified temperature range: –40°C to 125°C

Designed with the three-amplifier architecture, INA350

is optimized for delivering performance. It achieves

85 dB of minimum CMRR and 0.6% of maximum

gain error, along with 1.2 mV of maximum offset

across all gain options, while consuming just 125 µA

of maximum quiescent current. It has an integrated

shutdown option to turn off the amplifier when idle

for additional power savings in battery powered

applications.

2 Applications

•

Bridge network sensing

Differential to single-ended conversion

Weigh scale

Analog input module

Flow transmitter

Wearable fitness and activity monitor

Blood glucose monitor

Pressure and temperature sensing

Device Information

PART NUMBER

PACKAGE⁽¹⁾

BODY SIZE (NOM)

2.00 mm × 2.00 mm

1.60 mm × 2.90 mm

1.50 mm × 2.00 mm

V+

WSON (8)

INA350ABS,

SOT-23 (8)

INA350CDS⁽³⁾

60 k

–

60 k

X2QFN (10)⁽²⁾

(1) For all available packages, see the package option

addendum at the end of the data sheet.

(2) This package is preview only.

–

90 k / 145 k

R_G

OUT

REF

(3) INA350CDS part number is on preview.

–

60 k

+IN

_____

SHDN

Note: 90 kΩ for INA350ABS and 145 kΩ for INA350CDS

Simplified Internal Schematic

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...45

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与INA350CDSIDDFR相关器件

型号	品牌	获取价格	描述	数据表
INA350CDSIDSGR	TI	获取价格	微型 (2mm × 2mm)、低功耗 (100μA)、可选增益仪表放大器 \| DSG \|
INA351	TI	获取价格	具有集成基准缓冲器的微型 (1.5mm × 2mm) 低功耗 (110µA) 仪表放大器
INA351A	TI	获取价格	具有集成基准放大器的低功耗 (110μA) 仪表放大器可支持校准
INA351ABSIDSGR	TI	获取价格	Tiny (1.5-mm × 2-mm) low-power (110 µA) instr
INA351AIDSGR	TI	获取价格	Low-power (110 µA) instrumentation amplifier
INA351CDSIDSGR	TI	获取价格	Tiny (1.5-mm × 2-mm) low-power (110 µA) instr
INA381	TI	获取价格	具有集成过流比较器的 26V、350kHz 电流检测放大器
INA381A1IDGSR	TI	获取价格	具有集成过流比较器的 26V、350kHz 电流检测放大器 \| DGS \| 10 \| -4
INA381A1IDGST	TI	获取价格	具有集成过流比较器的 26V、350kHz 电流检测放大器 \| DGS \| 10 \| -4
INA381A1IDSGR	TI	获取价格	具有集成过流比较器的 26V、350kHz 电流检测放大器 \| DSG \| 8 \| -40

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