Datasheet > AS348

AS348

更新时间： 2024-10-31 14:53:23

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
24页	1169K
描述
Low Noise, Low Power, 1MHz, RRIO Single / Dual CMOS Operational Amplifiers

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AS348 数据手册

AS348/AS2348

LOW NOISE, LOW POWER, 1MHZ, RRIO

SINGLE / DUAL CMOS OPERATIONAL AMPLIFIERS

Description

Pin Assignments

The DIODES AS348/AS2348 are single/dual channels RRIO

amplifiers (rail-to-rail input and output), which provide not only

maximum output-voltage swing capability but also an extended

300mV common-mode voltage beyond the supply rail. The devices

are fully specified to operate from 1.6V to 5.5V single-supply, or ±0.8V

and ±2.5V dual-supply applications.

(Top View)

OUTPUT

VEE

VCC

IN-

The devices feature a good speed/power consumption ratio, offering

1MHz gain bandwidth while consuming 70μA per channel (typ). They

are unity-gain stable for capacitive loads up to 100pF. The low noise

density 27nV/√Hz, low input offset voltage 0.5mV and low input offset

drift 2μV/°C make them ideal for applications that require precision.

With the input bias current is 1pA at room temperature, it is well

suitable for low-voltage, low-noise, and low-power applications.

IN+

SOT25 (AS348)

(Top View)

VCC

OUTPUT 1

IN 1-

The AS348/AS2348 offer industry-standard packages. The AS348 is

available in the SOT25 package, and the AS2348 is offered in the

MSOP-8 and SO-8 packages. Temperature is specified for operation:

from -40°C to +125°C among all supply voltages. The wide

temperature ranges and high ESD tolerance facilitate their use in

harsh applications.

OUTPUT 2

IN 2-

IN 1+

VEE

IN 2+

SO-8/MSOP-8 (AS2348)

Features

Applications



Single-Supply Voltage Range: 1.6V to 5.5V

Dual-Supply Voltage Range: ±0.8V to ±2.5V

Ultra-Low Input Bias Current: 1pA (typ)



Active filters

Sensors interfaces

Photodiode amplification

Offset Voltage: 0.5mV (typ), 2.5mV (max)

Low Input Offset Drift: 2μV/°C (typ)

Smoke alarms, CO detectors

Battery-powered applications

Portable equipment

Rail-to-Rail Input

V_CM: 300mV Beyond Supply Rail @ V_CC= 3V or 5V

Rail-to-Rail Output Swing:

Medical instrumentation

Pulse blood oximeters, glucose meters

10kΩ Load: 4mV from Rail

1kΩ Load: 25mV from Rail



Supply Current: 70μA/Channel (typ)

Unity-Gain Stable up to 100pF Capacitive Load

Gain Bandwidth: 1.0MHz



Slew Rate: 0.45V/μs @ V_CC= 5.0V

Operation Ambient Temperature Range: -40°C to +125°C

ESD Protection JESD 22, 4000V HBM (A114)

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

For automotive applications requiring specific change

control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP

capable, and manufactured in IATF 16949 certified facilities),

please contact us or your local Diodes representative.

https://www.diodes.com/quality/product-definitions/

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 24

www.diodes.com

February 2023

AS348/AS2348

Document number: DS45094 Rev. 1 - 2

12 3 4 5 6 7...24

中文翻译

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